[moderation] [bcachefs?] WARNING: ODEBUG bug in delete_node (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 8f6a15f095a6 Merge tag 'cocci-for-6.10' of git://git.kerne..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13031784980000
kernel config: https://syzkaller.appspot.com/x/.config?x=6be91306a8917025
dashboard link: https://syzkaller.appspot.com/bug?extid=167fadeebdc24576d543
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
CC: [bfo...@redhat.com kent.ov...@linux.dev linux-b...@vger.kernel.org linux-...@vger.kernel.org]

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/02867060d65d/disk-8f6a15f0.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/4bb75fbf6fb1/vmlinux-8f6a15f0.xz
kernel image: https://storage.googleapis.com/syzbot-assets/fd38cadddf33/bzImage-8f6a15f0.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+167fad...@syzkaller.appspotmail.com

bcachefs (loop1): shutting down
------------[ cut here ]------------
ODEBUG: activate active (active state 0) object: ffff8880586c0018 object type: rcu_head hint: 0x0
WARNING: CPU: 0 PID: 13065 at lib/debugobjects.c:517 debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514
Modules linked in:
CPU: 0 PID: 13065 Comm: syz-executor.1 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514
Code: e8 cb 8b 49 fd 4c 8b 0b 48 c7 c7 60 17 1f 8c 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f8 ff 34 24 e8 ab 21 a9 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 ec 0b fd 0a 48 83 c4 10 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc9000c9ef8b8 EFLAGS: 00010286
RAX: 64132cd989bf2900 RBX: ffffffff8bcbd140 RCX: ffff888020c15a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffffff8c1f18e0 R08: ffffffff815856f2 R09: fffffbfff1c3996c
R10: dffffc0000000000 R11: fffffbfff1c3996c R12: 0000000000000000
R13: ffffffff8c1f17f8 R14: dffffc0000000000 R15: ffff8880586c0018
FS: 000055557b7bb480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000024ece000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
debug_object_activate+0x357/0x510 lib/debugobjects.c:732
debug_rcu_head_queue kernel/rcu/rcu.h:227 [inline]
__call_rcu_common kernel/rcu/tree.c:3057 [inline]
call_rcu+0x97/0xa70 kernel/rcu/tree.c:3176
radix_tree_node_free lib/radix-tree.c:310 [inline]
delete_node+0x1ac/0x770 lib/radix-tree.c:573
radix_tree_delete_item+0x2e0/0x3f0 lib/radix-tree.c:1430
__bch2_fs_stop+0x230/0x540 fs/bcachefs/super.c:625
generic_shutdown_super+0x136/0x2d0 fs/super.c:642
bch2_kill_sb+0x41/0x50 fs/bcachefs/fs.c:2026
deactivate_locked_super+0xc4/0x130 fs/super.c:473
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267
task_work_run+0x24f/0x310 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
do_syscall_64+0x102/0x240 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f48d287e217
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffff03f43a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f48d287e217
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff03f4460
RBP: 00007ffff03f4460 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffff03f5520
R13: 00007f48d28c8336 R14: 000000000008e246 R15: 0000000000000012
</TASK>


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