[syzbot] INFO: task can't die in blk_mq_freeze_queue_wait
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syzbot
Nov 14, 2021, 10:03:26 PM11/14/21
to ax...@kernel.dk, linux...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 09bd48c4acfa Add linux-next specific files for 20211115
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=14f0ace6b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=17d226c7c2fec892
dashboard link: https://syzkaller.appspot.com/bug?extid=81f844673361aa0541a0
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+81f844...@syzkaller.appspotmail.com
INFO: task syz-executor.0:27209 can't die for more than 143 seconds.
task:syz-executor.0 state:D stack:29072 pid:27209 ppid: 21913 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
blk_mq_freeze_queue_wait+0x112/0x160 block/blk-mq.c:178
__loop_clr_fd+0x1ae/0x1070 drivers/block/loop.c:1122
loop_clr_fd drivers/block/loop.c:1237 [inline]
lo_ioctl+0x398/0x17c0 drivers/block/loop.c:1562
blkdev_ioctl+0x37a/0x800 block/ioctl.c:609
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6865788ae9
RSP: 002b:00007f6862cbc188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f686589c0e0 RCX: 00007f6865788ae9
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004
RBP: 00007f68657e2f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb0b4b25f R14: 00007f6862cbc300 R15: 0000000000022000
</TASK>
INFO: task syz-executor.0:27209 blocked for more than 143 seconds.
Not tainted 5.15.0-next-20211115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:29072 pid:27209 ppid: 21913 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
blk_mq_freeze_queue_wait+0x112/0x160 block/blk-mq.c:178
__loop_clr_fd+0x1ae/0x1070 drivers/block/loop.c:1122
loop_clr_fd drivers/block/loop.c:1237 [inline]
lo_ioctl+0x398/0x17c0 drivers/block/loop.c:1562
blkdev_ioctl+0x37a/0x800 block/ioctl.c:609
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6865788ae9
RSP: 002b:00007f6862cbc188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f686589c0e0 RCX: 00007f6865788ae9
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004
RBP: 00007f68657e2f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb0b4b25f R14: 00007f6862cbc300 R15: 0000000000022000
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8bb83aa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6387:
#0: ffff8880733020f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
3 locks held by kworker/u4:7/14256:
2 locks held by agetty/24581:
#0: ffff888073bbc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
#1: ffffc900050eb2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113
2 locks held by systemd-udevd/26988:
#0: ffff88801a814118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb50 block/bdev.c:819
#1: ffff888147228360 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x75/0x120 drivers/block/loop.c:1733
1 lock held by syz-executor.0/27209:
#0: ffff888147228360 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0x7a/0x1070 drivers/block/loop.c:1106
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.15.0-next-20211115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:254 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:339
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2959 Comm: systemd-journal Not tainted 5.15.0-next-20211115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:hash_name fs/namei.c:2154 [inline]
RIP: 0010:link_path_walk.part.0+0x387/0xd00 fs/namei.c:2243
Code: e8 7e a1 aa ff 4d 85 e4 74 83 4c 89 6c 24 18 4d 89 f5 4c 8b 74 24 20 e8 d7 9e aa ff 49 8d 4c 24 ff 4c 89 e2 4c 89 e8 48 f7 d2 <4c> 8b 6c 24 18 48 be 00 00 00 00 00 fc ff df 48 21 ca 48 b9 08 06
RSP: 0018:ffffc9000205fb58 EFLAGS: 00000293
RAX: 2f6c616e72756f6a RBX: ffff888011241490 RCX: 7fffffffffffffff
RDX: 7fffffffffffffff RSI: ffffffff81cd5049 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81cd5032 R11: 0000000000000000 R12: 8000000000000000
R13: 2f6c616e72756f6a R14: ffffc9000205fce0 R15: ffff88804791c42d
FS: 00007f8032a248c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f80300b1000 CR3: 000000001c195000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
<TASK>
link_path_walk fs/namei.c:2221 [inline]
path_lookupat+0xc8/0x860 fs/namei.c:2448
filename_lookup+0x1c6/0x590 fs/namei.c:2478
user_path_at_empty+0x42/0x60 fs/namei.c:2801
user_path_at include/linux/namei.h:57 [inline]
do_faccessat+0x127/0x850 fs/open.c:421
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8031cdf9c7
Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007fff604c5b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00007fff604c8b50 RCX: 00007f8031cdf9c7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00005634d00549a3
RBP: 00007fff604c5c70 R08: 00005634d004a3e5 R09: 0000000000000018
R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00005634d1f4d8a0 R15: 00007fff604c6160
</TASK>
----------------
Code disassembly (best guess):
0: e8 7e a1 aa ff callq 0xffaaa183
5: 4d 85 e4 test %r12,%r12
8: 74 83 je 0xffffff8d
a: 4c 89 6c 24 18 mov %r13,0x18(%rsp)
f: 4d 89 f5 mov %r14,%r13
12: 4c 8b 74 24 20 mov 0x20(%rsp),%r14
17: e8 d7 9e aa ff callq 0xffaa9ef3
1c: 49 8d 4c 24 ff lea -0x1(%r12),%rcx
21: 4c 89 e2 mov %r12,%rdx
24: 4c 89 e8 mov %r13,%rax
27: 48 f7 d2 not %rdx
* 2a: 4c 8b 6c 24 18 mov 0x18(%rsp),%r13 <-- trapping instruction
2f: 48 be 00 00 00 00 00 movabs $0xdffffc0000000000,%rsi
36: fc ff df
39: 48 21 ca and %rcx,%rdx
3c: 48 rex.W
3d: b9 .byte 0xb9
3e: 08 06 or %al,(%rsi)
---
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 found the following issue on:
HEAD commit: 09bd48c4acfa Add linux-next specific files for 20211115
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=14f0ace6b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=17d226c7c2fec892
dashboard link: https://syzkaller.appspot.com/bug?extid=81f844673361aa0541a0
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+81f844...@syzkaller.appspotmail.com
INFO: task syz-executor.0:27209 can't die for more than 143 seconds.
task:syz-executor.0 state:D stack:29072 pid:27209 ppid: 21913 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
blk_mq_freeze_queue_wait+0x112/0x160 block/blk-mq.c:178
__loop_clr_fd+0x1ae/0x1070 drivers/block/loop.c:1122
loop_clr_fd drivers/block/loop.c:1237 [inline]
lo_ioctl+0x398/0x17c0 drivers/block/loop.c:1562
blkdev_ioctl+0x37a/0x800 block/ioctl.c:609
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6865788ae9
RSP: 002b:00007f6862cbc188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f686589c0e0 RCX: 00007f6865788ae9
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004
RBP: 00007f68657e2f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb0b4b25f R14: 00007f6862cbc300 R15: 0000000000022000
</TASK>
INFO: task syz-executor.0:27209 blocked for more than 143 seconds.
Not tainted 5.15.0-next-20211115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:29072 pid:27209 ppid: 21913 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
blk_mq_freeze_queue_wait+0x112/0x160 block/blk-mq.c:178
__loop_clr_fd+0x1ae/0x1070 drivers/block/loop.c:1122
loop_clr_fd drivers/block/loop.c:1237 [inline]
lo_ioctl+0x398/0x17c0 drivers/block/loop.c:1562
blkdev_ioctl+0x37a/0x800 block/ioctl.c:609
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6865788ae9
RSP: 002b:00007f6862cbc188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f686589c0e0 RCX: 00007f6865788ae9
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004
RBP: 00007f68657e2f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb0b4b25f R14: 00007f6862cbc300 R15: 0000000000022000
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8bb83aa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6387:
#0: ffff8880733020f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
3 locks held by kworker/u4:7/14256:
2 locks held by agetty/24581:
#0: ffff888073bbc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
#1: ffffc900050eb2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113
2 locks held by systemd-udevd/26988:
#0: ffff88801a814118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb50 block/bdev.c:819
#1: ffff888147228360 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x75/0x120 drivers/block/loop.c:1733
1 lock held by syz-executor.0/27209:
#0: ffff888147228360 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0x7a/0x1070 drivers/block/loop.c:1106
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.15.0-next-20211115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:254 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:339
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2959 Comm: systemd-journal Not tainted 5.15.0-next-20211115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:hash_name fs/namei.c:2154 [inline]
RIP: 0010:link_path_walk.part.0+0x387/0xd00 fs/namei.c:2243
Code: e8 7e a1 aa ff 4d 85 e4 74 83 4c 89 6c 24 18 4d 89 f5 4c 8b 74 24 20 e8 d7 9e aa ff 49 8d 4c 24 ff 4c 89 e2 4c 89 e8 48 f7 d2 <4c> 8b 6c 24 18 48 be 00 00 00 00 00 fc ff df 48 21 ca 48 b9 08 06
RSP: 0018:ffffc9000205fb58 EFLAGS: 00000293
RAX: 2f6c616e72756f6a RBX: ffff888011241490 RCX: 7fffffffffffffff
RDX: 7fffffffffffffff RSI: ffffffff81cd5049 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81cd5032 R11: 0000000000000000 R12: 8000000000000000
R13: 2f6c616e72756f6a R14: ffffc9000205fce0 R15: ffff88804791c42d
FS: 00007f8032a248c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f80300b1000 CR3: 000000001c195000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
<TASK>
link_path_walk fs/namei.c:2221 [inline]
path_lookupat+0xc8/0x860 fs/namei.c:2448
filename_lookup+0x1c6/0x590 fs/namei.c:2478
user_path_at_empty+0x42/0x60 fs/namei.c:2801
user_path_at include/linux/namei.h:57 [inline]
do_faccessat+0x127/0x850 fs/open.c:421
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8031cdf9c7
Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007fff604c5b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00007fff604c8b50 RCX: 00007f8031cdf9c7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00005634d00549a3
RBP: 00007fff604c5c70 R08: 00005634d004a3e5 R09: 0000000000000018
R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00005634d1f4d8a0 R15: 00007fff604c6160
</TASK>
----------------
Code disassembly (best guess):
0: e8 7e a1 aa ff callq 0xffaaa183
5: 4d 85 e4 test %r12,%r12
8: 74 83 je 0xffffff8d
a: 4c 89 6c 24 18 mov %r13,0x18(%rsp)
f: 4d 89 f5 mov %r14,%r13
12: 4c 8b 74 24 20 mov 0x20(%rsp),%r14
17: e8 d7 9e aa ff callq 0xffaa9ef3
1c: 49 8d 4c 24 ff lea -0x1(%r12),%rcx
21: 4c 89 e2 mov %r12,%rdx
24: 4c 89 e8 mov %r13,%rax
27: 48 f7 d2 not %rdx
* 2a: 4c 8b 6c 24 18 mov 0x18(%rsp),%r13 <-- trapping instruction
2f: 48 be 00 00 00 00 00 movabs $0xdffffc0000000000,%rsi
36: fc ff df
39: 48 21 ca and %rcx,%rdx
3c: 48 rex.W
3d: b9 .byte 0xb9
3e: 08 06 or %al,(%rsi)
---
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
Nov 21, 2021, 9:26:51 AM11/21/21
to Tetsuo Handa, penguin...@i-love.sakura.ne.jp, syzkall...@googlegroups.com
> #syz fix: block: fix missing queue put in error path
Your 'fix:' command is accepted, but please keep syzkall...@googlegroups.com mailing list in CC next time. It serves as a history of what happened with each bug report. Thank you.
Your 'fix:' command is accepted, but please keep syzkall...@googlegroups.com mailing list in CC next time. It serves as a history of what happened with each bug report. Thank you.
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