INFO: task syz-executor.3:9321 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:26896 pid: 9321 ppid: 6756 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
io_uring_cancel_generic+0x53d/0x690 fs/io_uring.c:9850
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: 0033:0x7fe6ea179ae9
RSP: 002b:00007fe6e76ef218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fe6ea28cf68 RCX: 00007fe6ea179ae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe6ea28cf68
RBP: 00007fe6ea28cf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe6ea28cf6c
R13: 00007fe6ea7c0b2f R14: 00007fe6e76ef300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#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/6221:
#0: ffff88807e3620f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
3 locks held by kworker/u4:4/6193:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 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: 23521 Comm: kworker/0:0 Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:devlink_trap_report+0x0/0x7f0 net/core/devlink.c:10930
Code: 41 5c 41 5d 41 5e c3 e8 3e 1f 38 fa 0f 0b e9 36 ff ff ff 4c 89 ef e8 5f dc 7e fa e9 01 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 <41> 57 41 56 49 be 00 00 00 00 00 fc ff df 41 55 49 89 cd 41 54 49
RSP: 0018:ffffc9000ce2fc58 EFLAGS: 00000246
RAX: 1ffff11006684d8c RBX: 0000000000000006 RCX: ffff888078dea010
RDX: ffff88814a02af80 RSI: ffff88807a53d640 RDI: ffff888033843000
RBP: ffff888033426c60 R08: 0000000000000000 R09: 0000000000000003
R10: ffffffff8554b00b R11: 00000000678c0fa0 R12: dffffc0000000000
R13: ffff88807a53d640 R14: ffff888033843500 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb8b1069000 CR3: 000000006f1b9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
nsim_dev_trap_report drivers/net/netdevsim/dev.c:815 [inline]
nsim_dev_trap_report_work+0x84d/0xbc0 drivers/net/netdevsim/dev.c:843
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 41 5c pop %r12
2: 41 5d pop %r13
4: 41 5e pop %r14
6: c3 retq
7: e8 3e 1f 38 fa callq 0xfa381f4a
c: 0f 0b ud2
e: e9 36 ff ff ff jmpq 0xffffff49
13: 4c 89 ef mov %r13,%rdi
16: e8 5f dc 7e fa callq 0xfa7edc7a
1b: e9 01 ff ff ff jmpq 0xffffff21
20: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
27: 00 00 00
* 2a: 41 57 push %r15 <-- trapping instruction
2c: 41 56 push %r14
2e: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14
35: fc ff df
38: 41 55 push %r13
3a: 49 89 cd mov %rcx,%r13
3d: 41 54 push %r12
3f: 49 rex.WB