INFO: task syz-executor.3:27353 blocked for more than 143 seconds.
Not tainted 5.16.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:25728 pid:27353 ppid: 6813 flags:0x00024004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x174/0x270 kernel/sched/completion.c:138
io_wq_exit_workers fs/io-wq.c:1217 [inline]
io_wq_put_and_exit+0x33a/0xb70 fs/io-wq.c:1252
io_uring_clean_tctx fs/io_uring.c:9770 [inline]
io_uring_cancel_generic+0x61d/0x690 fs/io_uring.c:9851
io_uring_files_cancel include/linux/io_uring.h:16 [inline]
do_exit+0x60c/0x2b40 kernel/exit.c:787
do_group_exit+0x125/0x310 kernel/exit.c:929
get_signal+0x47d/0x2220 kernel/signal.c:2852
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f5c18a06ae9
RSP: 002b:00007f5c15f7c188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000000080 RBX: 00007f5c18b19f60 RCX: 00007f5c18a06ae9
RDX: 0000000000000000 RSI: 0000000010002a6e RDI: 0000000000000004
RBP: 00007f5c18a60f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5c1904db2f R14: 00007f5c15f7c300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83ca0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6246:
#0: ffff88807c73c5f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__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:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2963 Comm: systemd-journal Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x60 kernel/kcov.c:200
Code: 81 e1 00 01 00 00 65 48 8b 14 25 40 70 02 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 a4 15 00 00 85 c0 74 2b 8b 82 80 15 00 00 <83> f8 02 75 20 48 8b 8a 88 15 00 00 8b 92 84 15 00 00 48 8b 01 48
RSP: 0018:ffffc90001b1fcb0 EFLAGS: 00000046
RAX: 0000000040000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807bf69d00 RSI: ffffffff817ddd09 RDI: 0000000000000001
RBP: ffffc90001b1fd20 R08: 0000000000000000 R09: ffff8880b9c39a83
R10: ffffed1017387350 R11: 0000000000000001 R12: ffff8880b9c3a7d8
R13: ffff888077899d00 R14: ffff8880b9c39a80 R15: ffff8880b9c3a4b8
FS: 00007fab6b3168c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fab68875000 CR3: 000000001bbc8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_hardirqs_on+0x9/0x1c0 kernel/trace/trace_preemptirq.c:42
raw_spin_rq_unlock_irq kernel/sched/sched.h:1328 [inline]
finish_lock_switch kernel/sched/core.c:4732 [inline]
finish_task_switch.isra.0+0x319/0xb80 kernel/sched/core.c:4850
context_switch kernel/sched/core.c:4975 [inline]
__schedule+0xaa2/0x4940 kernel/sched/core.c:6253
preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6668
irqentry_exit+0x31/0x80 kernel/entry/common.c:425
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__syscall_enter_from_user_work kernel/entry/common.c:87 [inline]
RIP: 0010:syscall_enter_from_user_mode+0x2b/0x70 kernel/entry/common.c:108
Code: 54 49 89 f4 55 48 89 fd 48 8b 7c 24 10 e8 cd f5 ff ff eb 27 eb 2b e8 94 08 3a f8 e8 cf 06 3a f8 fb 65 48 8b 04 25 40 70 02 00 <48> 8b 70 08 40 f6 c6 3f 75 19 4c 89 e0 5d 41 5c c3 eb 1b 0f 0b eb
RSP: 0018:ffffc90001b1ff28 EFLAGS: 00000202
RAX: ffff88807bf69d00 RBX: 0000000000000000 RCX: 1ffffffff1b21eb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90001b1ff58 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817ddd38 R11: 0000000000000000 R12: 0000000000000027
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
do_syscall_64+0x16/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fab6a5aef17
Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00
RSP: 002b:00007ffe37af4118 EFLAGS: 00000202 ORIG_RAX: 0000000000000027
RAX: ffffffffffffffda RBX: 00005592dfc7f1e0 RCX: 00007fab6a5aef17
RDX: 0000000000000000 RSI: 00000000390f3904 RDI: 00005592dfc7f1e0
RBP: 0000000000000b93 R08: 00000000000003bd R09: 00007ffe37b9e080
R10: 00007ffe37b9e0f0 R11: 0000000000000202 R12: ffffffffffffffff
R13: 00007ffe37af41c8 R14: 00005592de4d6958 R15: 0005d169bf349f80
----------------
Code disassembly (best guess):
0: 81 e1 00 01 00 00 and $0x100,%ecx
6: 65 48 8b 14 25 40 70 mov %gs:0x27040,%rdx
d: 02 00
f: a9 00 01 ff 00 test $0xff0100,%eax
14: 74 0e je 0x24
16: 85 c9 test %ecx,%ecx
18: 74 35 je 0x4f
1a: 8b 82 a4 15 00 00 mov 0x15a4(%rdx),%eax
20: 85 c0 test %eax,%eax
22: 74 2b je 0x4f
24: 8b 82 80 15 00 00 mov 0x1580(%rdx),%eax
* 2a: 83 f8 02 cmp $0x2,%eax <-- trapping instruction
2d: 75 20 jne 0x4f
2f: 48 8b 8a 88 15 00 00 mov 0x1588(%rdx),%rcx
36: 8b 92 84 15 00 00 mov 0x1584(%rdx),%edx
3c: 48 8b 01 mov (%rcx),%rax
3f: 48 rex.W