possible deadlock in nilfs_count_free_blocks

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16eef83a880000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=1894713bc611eb7125bb
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=155b8142880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=160fb852880000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea228ff02669/vmlinux-3f8a27f9.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/2fd7233ac322/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+189471...@syzkaller.appspotmail.com

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
======================================================
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
WARNING: possible circular locking dependency detected
4.19.211-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor798/8126 is trying to acquire lock:
0000000031790a00 (&dat_lock_key){.+.+}, at: nilfs_count_free_blocks+0x68/0x180 fs/nilfs2/the_nilfs.c:698
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

but task is already holding lock:
00000000a3785df8 (&nilfs->ns_sem){++++}, at: nilfs_put_super+0x14a/0x1a0 fs/nilfs2/super.c:472

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&nilfs->ns_sem){++++}:
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
nilfs_set_error fs/nilfs2/super.c:86 [inline]
__nilfs_error+0x195/0x401 fs/nilfs2/super.c:131
nilfs_bmap_convert_error fs/nilfs2/bmap.c:35 [inline]
nilfs_bmap_lookup_contig+0x13d/0x180 fs/nilfs2/bmap.c:95
nilfs_get_block+0x1ce/0x970 fs/nilfs2/inode.c:80
do_mpage_readpage+0x8fb/0x1ca0 fs/mpage.c:231
mpage_readpages+0x33a/0x630 fs/mpage.c:404
read_pages.isra.0+0xf6/0x5d0 mm/readahead.c:123
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
__do_page_cache_readahead+0x5c6/0x6c0 mm/readahead.c:211
ra_submit mm/internal.h:66 [inline]
ondemand_readahead.isra.0+0x575/0xd40 mm/readahead.c:493
page_cache_sync_readahead mm/readahead.c:528 [inline]
page_cache_sync_readahead+0x275/0x520 mm/readahead.c:510
generic_file_buffered_read mm/filemap.c:2115 [inline]
generic_file_read_iter+0x1497/0x2b60 mm/filemap.c:2385
call_read_iter include/linux/fs.h:1815 [inline]
new_sync_read fs/read_write.c:406 [inline]
__vfs_read+0x518/0x750 fs/read_write.c:418
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
integrity_kernel_read+0x147/0x1f0 security/integrity/iint.c:200
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:364 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:393 [inline]
ima_calc_file_hash+0x4b2/0x8a0 security/integrity/ima/ima_crypto.c:450
ima_collect_measurement+0x4c4/0x570 security/integrity/ima/ima_api.c:231
process_measurement+0xddd/0x1440 security/integrity/ima/ima_main.c:284
ima_file_check+0xb9/0x100 security/integrity/ima/ima_main.c:391
do_last fs/namei.c:3425 [inline]
path_openat+0x7e4/0x2df0 fs/namei.c:3537
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
do_filp_open+0x18c/0x3f0 fs/namei.c:3567
do_sys_open+0x3b3/0x520 fs/open.c:1085
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&dat_lock_key){.+.+}:
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
down_read+0x36/0x80 kernel/locking/rwsem.c:24
nilfs_count_free_blocks+0x68/0x180 fs/nilfs2/the_nilfs.c:698
nilfs_set_log_cursor fs/nilfs2/super.c:237 [inline]
nilfs_cleanup_super+0x133/0x490 fs/nilfs2/super.c:319
nilfs_put_super+0x152/0x1a0 fs/nilfs2/super.c:473
generic_shutdown_super+0x144/0x370 fs/super.c:456
kill_block_super+0x97/0xf0 fs/super.c:1185
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
deactivate_locked_super+0x94/0x160 fs/super.c:329
deactivate_super+0x174/0x1a0 fs/super.c:360
cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
task_work_run+0x148/0x1c0 kernel/task_work.c:113
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Possible unsafe locking scenario:

CPU0 CPU1
---- ----
lock(&nilfs->ns_sem);
lock(&dat_lock_key);
lock(&nilfs->ns_sem);
lock(&dat_lock_key);
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

*** DEADLOCK ***

2 locks held by syz-executor798/8126:
#0: 00000000953fc8bc (&type->s_umount_key#47){+.+.}, at: deactivate_super+0x16c/0x1a0 fs/super.c:359
#1: 00000000a3785df8 (&nilfs->ns_sem){++++}, at: nilfs_put_super+0x14a/0x1a0 fs/nilfs2/super.c:472

stack backtrace:
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
CPU: 1 PID: 8126 Comm: syz-executor798 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
check_prev_add kernel/locking/lockdep.c:1866 [inline]
check_prevs_add kernel/locking/lockdep.c:1979 [inline]
validate_chain kernel/locking/lockdep.c:2420 [inline]
__lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
down_read+0x36/0x80 kernel/locking/rwsem.c:24
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
nilfs_count_free_blocks+0x68/0x180 fs/nilfs2/the_nilfs.c:698
nilfs_set_log_cursor fs/nilfs2/super.c:237 [inline]
nilfs_cleanup_super+0x133/0x490 fs/nilfs2/super.c:319
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
nilfs_put_super+0x152/0x1a0 fs/nilfs2/super.c:473
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
generic_shutdown_super+0x144/0x370 fs/super.c:456
kill_block_super+0x97/0xf0 fs/super.c:1185
deactivate_locked_super+0x94/0x160 fs/super.c:329
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
deactivate_super+0x174/0x1a0 fs/super.c:360
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f62dd2d5497
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd9519b4d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f62dd2d5497
RDX: 00007ffd9519b599 RSI: 000000000000000a RDI: 00007ffd9519b590
RBP: 00007ffd9519b590 R08: 00000000ffffffff R09: 00007ffd9519b370
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
R10: 0000555555581683 R11: 0000000000000206 R12: 00007ffd9519c650
R13: 00005555555815f0 R14: 00007ffd9519b500 R15: 00007ffd9519c670
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Remounting filesystem read-only
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
audit: type=1800 audit(1665490574.916:2): pid=8158 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop5" ino=16 res=0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
syz-executor798 (8158) used greatest stack depth: 23472 bytes left
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
audit: type=1800 audit(1665490575.706:3): pid=8124 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop0" ino=16 res=0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
audit: type=1800 audit(1665490576.127:4): pid=8125 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop2" ino=16 res=0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
audit: type=1800 audit(1665490576.167:5): pid=8135 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop3" ino=16 res=0
Remounting filesystem read-only
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
audit: type=1800 audit(1665490576.387:6): pid=8160 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop1" ino=16 res=0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
audit: type=1800 audit(1665490576.587:7): pid=8182 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop4" ino=16 res=0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
audit: type=1800 audit(1665490577.047:8): pid=8200 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop0" ino=16 res=0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
audit: type=1800 audit(1665490577.367:9): pid=8238 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop4" ino=16 res=0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Remounting filesystem read-only
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Remounting filesystem read-only
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Remounting filesystem read-only
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
audit: type=1800 audit(1665490578.717:10): pid=8298 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop0" ino=16 res=0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Remounting filesystem read-only
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
audit: type=1800 audit(1665490579.257:11): pid=8347 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor798" name="file3" dev="loop3" ino=16 res=0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
Remounting filesystem read-only
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only
NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Remounting filesystem read-only
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only
Remounting filesystem read-only
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
kauditd_printk_skb: 5 callbacks suppressed
au

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 9d5c0b3a8e1a Linux 4.14.295
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=11e14594880000
kernel config: https://syzkaller.appspot.com/x/.config?x=746c079015a92425
dashboard link: https://syzkaller.appspot.com/bug?extid=c9c12ba12861db48c97a

compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1171e3b2880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11583eaa880000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ed6fcf5895a2/disk-9d5c0b3a.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/341aa3534116/vmlinux-9d5c0b3a.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/9acc4b7b80ac/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:

Reported-by: syzbot+c9c12b...@syzkaller.appspotmail.com

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

======================================================

WARNING: possible circular locking dependency detected

4.14.295-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor281/7966 is trying to acquire lock:
(&dat_lock_key){.+.+}
Remounting filesystem read-only
, at: [<ffffffff826e77c8>] nilfs_count_free_blocks+0x68/0x180 fs/nilfs2/the_nilfs.c:707

but task is already holding lock:

(&nilfs->ns_sem){++++}, at: [<ffffffff826bdf59>] nilfs_put_super+0x139/0x190 fs/nilfs2/super.c:482

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&nilfs->ns_sem){++++}:

down_write+0x34/0x90 kernel/locking/rwsem.c:54
nilfs_set_error fs/nilfs2/super.c:95 [inline]
__nilfs_error+0x176/0x399 fs/nilfs2/super.c:140
nilfs_bmap_convert_error fs/nilfs2/bmap.c:44 [inline]
nilfs_bmap_lookup_contig+0x130/0x170 fs/nilfs2/bmap.c:104
nilfs_get_block+0x1bd/0x7a0 fs/nilfs2/inode.c:89
do_mpage_readpage+0x615/0x1470 fs/mpage.c:211
mpage_readpages+0x2d6/0x5f0 fs/mpage.c:383

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

read_pages mm/readahead.c:121 [inline]
__do_page_cache_readahead+0x522/0x940 mm/readahead.c:199
ra_submit mm/internal.h:66 [inline]
ondemand_readahead.isra.0+0x514/0xb60 mm/readahead.c:486
page_cache_sync_readahead mm/readahead.c:518 [inline]
page_cache_sync_readahead+0xa6/0xf0 mm/readahead.c:503
generic_file_buffered_read mm/filemap.c:2003 [inline]
generic_file_read_iter+0xfbc/0x21c0 mm/filemap.c:2273
call_read_iter include/linux/fs.h:1774 [inline]
new_sync_read fs/read_write.c:401 [inline]
__vfs_read+0x449/0x620 fs/read_write.c:413
integrity_kernel_read+0x11b/0x1b0 security/integrity/iint.c:199

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:381 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:410 [inline]
ima_calc_file_hash+0x3ee/0x780 security/integrity/ima/ima_crypto.c:467
ima_collect_measurement+0x39d/0x430 security/integrity/ima/ima_api.c:227
process_measurement+0x78b/0xb20 security/integrity/ima/ima_main.c:264
do_last fs/namei.c:3435 [inline]
path_openat+0x10ad/0x2970 fs/namei.c:3571

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

do_filp_open+0x179/0x3c0 fs/namei.c:3605
do_sys_open+0x296/0x410 fs/open.c:1081
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb

-> #0 (&dat_lock_key){.+.+}:
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
down_read+0x36/0x80 kernel/locking/rwsem.c:24
nilfs_count_free_blocks+0x68/0x180 fs/nilfs2/the_nilfs.c:707
nilfs_set_log_cursor fs/nilfs2/super.c:247 [inline]
nilfs_cleanup_super+0x123/0x450 fs/nilfs2/super.c:329
nilfs_put_super+0x141/0x190 fs/nilfs2/super.c:483
generic_shutdown_super+0x144/0x370 fs/super.c:446

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

kill_block_super+0x95/0xe0 fs/super.c:1161

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

deactivate_locked_super+0x6c/0xd0 fs/super.c:319
deactivate_super+0x7f/0xa0 fs/super.c:350
cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183
task_work_run+0x11f/0x190 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:191 [inline]
exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x46/0xbb

other info that might help us debug this:

Possible unsafe locking scenario:

CPU0 CPU1
---- ----
lock(&nilfs->ns_sem);
lock(&dat_lock_key);
lock(&nilfs->ns_sem);
lock(&dat_lock_key);

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

*** DEADLOCK ***

2 locks held by syz-executor281/7966:
#0: (&type->s_umount_key#47){+.+.}, at: [<ffffffff81876de7>] deactivate_super+0x77/0xa0 fs/super.c:349
#1: (&nilfs->ns_sem){++++}, at: [<ffffffff826bdf59>] nilfs_put_super+0x139/0x190 fs/nilfs2/super.c:482

stack backtrace:
CPU: 0 PID: 7966 Comm: syz-executor281 Not tainted 4.14.295-syzkaller #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:

__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258
check_prev_add kernel/locking/lockdep.c:1905 [inline]
check_prevs_add kernel/locking/lockdep.c:2022 [inline]
validate_chain kernel/locking/lockdep.c:2464 [inline]
__lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
down_read+0x36/0x80 kernel/locking/rwsem.c:24

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

nilfs_count_free_blocks+0x68/0x180 fs/nilfs2/the_nilfs.c:707
nilfs_set_log_cursor fs/nilfs2/super.c:247 [inline]
nilfs_cleanup_super+0x123/0x450 fs/nilfs2/super.c:329
nilfs_put_super+0x141/0x190 fs/nilfs2/super.c:483

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

generic_shutdown_super+0x144/0x370 fs/super.c:446
kill_block_super+0x95/0xe0 fs/super.c:1161

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

deactivate_locked_super+0x6c/0xd0 fs/super.c:319
deactivate_super+0x7f/0xa0 fs/super.c:350
cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183
task_work_run+0x11f/0x190 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:191 [inline]
exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f29d30b6447

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

RSP: 002b:00007fff239e00d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f29d30b6447
RDX: 00007fff239e0199 RSI: 000000000000000a RDI: 00007fff239e0190
RBP: 00007fff239e0190 R08: 00000000ffffffff R09: 00007fff239dff70
R10: 0000555555930683 R11: 0000000000000206 R12: 00007fff239e1250
R13: 00005555559305f0 R14: 00007fff239e0100 R15: 00007fff239e1270

Remounting filesystem read-only
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

Remounting filesystem read-only
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

Remounting filesystem read-only
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

audit: type=1800 audit(1665685488.661:2): pid=7974 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop3" ino=16 res=0

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

syz-executor281 (7974) used greatest stack depth: 23904 bytes left

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

Remounting filesystem read-only
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

audit: type=1800 audit(1665685488.831:3): pid=8001 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop0" ino=16 res=0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

audit: type=1800 audit(1665685488.831:4): pid=7979 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop5" ino=16 res=0

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

audit: type=1800 audit(1665685489.011:5): pid=7973 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop1" ino=16 res=0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

audit: type=1800 audit(1665685489.081:6): pid=7988 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop4" ino=16 res=0

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

Remounting filesystem read-only

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

Remounting filesystem read-only
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

Remounting filesystem read-only
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

print_req_error: I/O error, dev loop4, sector 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

Remounting filesystem read-only
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

Remounting filesystem read-only

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

audit: type=1800 audit(1665685490.662:7): pid=8018 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop2" ino=16 res=0

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

audit: type=1800 audit(1665685490.973:8): pid=8054 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop1" ino=16 res=0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

audit: type=1800 audit(1665685491.193:9): pid=8088 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop4" ino=16 res=0

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

audit: type=1800 audit(1665685491.333:10): pid=8051 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop5" ino=16 res=0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Remounting filesystem read-only

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

audit: type=1800 audit(1665685491.513:11): pid=8105 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop3" ino=16 res=0

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

Remounting filesystem read-only
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

Remounting filesystem read-only
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

Remounting filesystem read-only

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Remounting filesystem read-only
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

Remounting filesystem read-only
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
Remounting filesystem read-only

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

Remounting filesystem read-only
NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

kauditd_printk_skb: 5 callbacks suppressed
audit: type=1800 audit(1665685493.754:17): pid=8201 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor281" name="file2" dev="loop1" ino=16 res=0

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
Remounting filesystem read-only

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

Remounting filesystem read-only
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds

NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

Remounting filesystem read-only
NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop5): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop2): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop4): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS error (device loop3): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS (loop5): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop2): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop4): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop0): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0
NILFS (loop3): bad btree node (ino=16, blocknr=15): level = 0, flags = 0x0, nchildren = 0

NILFS error (device loop1): nilfs_bmap_lookup_contig: broken bmap (inode number=16)
NILFS error (device loop0): nilfs_bmap_lookup_contig: broken bmap (inode number=16)

NILFS (loop1): bad btree node (ino=16, blocknr=15): level = 0, flags