INFO: task syz-executor.5:25474 blocked for more than 143 seconds.
Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28448 pid:25474 ppid: 7485 flags:0x00024004
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
io_uring_cancel_generic+0x53d/0x690 fs/io_uring.c:9846
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:2830
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: 0033:0x7f076a734ae9
RSP: 002b:00007f0767caa218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f076a847f68 RCX: 00007f076a734ae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f076a847f68
RBP: 00007f076a847f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f076a847f6c
R13: 00007f076ad7bb2f R14: 00007f0767caa300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8b983a20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6223:
2 locks held by kworker/u4:6/21434:
#0: ffff8880b9d39a98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
#1: ffff8880b9d279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a6/0x490 kernel/sched/psi.c:880
2 locks held by kworker/u4:4/22279:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-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:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2967 Comm: systemd-journal Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:preempt_count_add+0x0/0x140 kernel/sched/core.c:5424
Code: ff ff e8 03 54 6e 00 e9 3f ff ff ff e8 89 53 6e 00 e9 cf fe ff ff e8 ef 53 6e 00 e9 f9 fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 <48> c7 c0 c0 99 2a 90 55 48 ba 00 00 00 00 00 fc ff df 48 89 c1 53
RSP: 0018:ffffc90001a7fb18 EFLAGS: 00000093
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807aeb3a00 RSI: ffffffff893d7be1 RDI: 0000000000000001
RBP: ffff88807c8ceff0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff817e054d R11: 0000000000000000 R12: ffff88807c8ceff0
R13: dffffc0000000000 R14: ffff88807c8cf140 R15: 0000000000000004
FS: 00007f826d99f8c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f826a54dc60 CR3: 000000007af20000 CR4: 00000000003526e0
Call Trace:
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:118 [inline]
_raw_spin_lock_irq+0x16/0x50 kernel/locking/spinlock.c:170
spin_lock_irq include/linux/spinlock.h:374 [inline]
shmem_getpage_gfp+0x872/0x22d0 mm/shmem.c:1943
shmem_getpage mm/shmem.c:150 [inline]
shmem_fallocate+0x8cf/0xf80 mm/shmem.c:2750
vfs_fallocate+0x48d/0xe10 fs/open.c:307
ksys_fallocate fs/open.c:330 [inline]
__do_sys_fallocate fs/open.c:338 [inline]
__se_sys_fallocate fs/open.c:336 [inline]
__x64_sys_fallocate+0xcf/0x140 fs/open.c:336
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: 0033:0x7f826cc5ebc6
Code: 24 00 75 bf eb a0 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 53 49 89 f1 48 89 d3 49 89 d2 b8 1d 01 00 00 48 89 f2 31 f6 0f 05 <3d> 00 f0 ff ff 76 13 83 f8 a1 74 16 f7 d8 5b c3 66 2e 0f 1f 84 00
RSP: 002b:00007ffd701ca390 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000800000 RCX: 00007f826cc5ebc6
RDX: 0000000001000000 RSI: 0000000000000000 RDI: 0000000000000010
RBP: 0000000000000006 R08: 0000000001000000 R09: 0000000001000000
R10: 0000000000800000 R11: 0000000000000246 R12: 000055c13718ae80
R13: 00007ffd701ca4c0 R14: 00007ffd701ca4b8 R15: 0000000001800000
----------------
Code disassembly (best guess), 2 bytes skipped:
0: e8 03 54 6e 00 callq 0x6e5408
5: e9 3f ff ff ff jmpq 0xffffff49
a: e8 89 53 6e 00 callq 0x6e5398
f: e9 cf fe ff ff jmpq 0xfffffee3
14: e8 ef 53 6e 00 callq 0x6e5408
19: e9 f9 fe ff ff jmpq 0xffffff17
1e: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
25: 00 00 00
* 28: 48 c7 c0 c0 99 2a 90 mov $0xffffffff902a99c0,%rax <-- trapping instruction
2f: 55 push %rbp
30: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
37: fc ff df
3a: 48 89 c1 mov %rax,%rcx
3d: 53 push %rbx