INFO: task syz.3.464:1945 blocked for more than 122 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.464       state:D stack:0     pid:1945  tgid:1943  ppid:297    flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:6026 [inline]
 __schedule+0x14ce/0x2100 kernel/sched/core.c:7893
 __schedule_loop kernel/sched/core.c:7974 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7989
 schedule_timeout+0xc7/0x3b0 kernel/time/timer.c:2596
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common+0x369/0x650 kernel/sched/completion.c:127
 wait_for_completion_state+0x19/0x40 kernel/sched/completion.c:264
 coredump_wait fs/coredump.c:448 [inline]
 do_coredump+0x8ad/0x2fe0 fs/coredump.c:629
 get_signal+0x11f8/0x14e0 kernel/signal.c:2918
 arch_do_signal_or_restart+0xbc/0x760 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [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+0x57/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 5df3:0x7f1e33616090
RSP: 0003:00007f1e33616098 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 00007f1e33251fbe RCX: 00007f1e342c80d0
RDX: 000000000000006a RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000010 R09: 00007f1e33616090
R10: 00000000342c8070 R11: ffffffff0000168e R12: 00007f1e33584720
R13: 00007f1e336160c0 R14: 000000000000006a R15: 000000001c712a94
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 29c6904b08c3b1e8518f4116e2e8016f6159917e
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 dump_stack+0x19/0x20 lib/dump_stack.c:129
 nmi_cpu_backtrace+0x2ba/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
 watchdog+0xdad/0xf00 kernel/hung_task.c:423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5528 Comm: syz.5.1746 Not tainted syzkaller #0 29c6904b08c3b1e8518f4116e2e8016f6159917e
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0033:0x7fdb6d47205a
Code: 48 83 c2 08 48 39 d5 75 e7 48 8d 50 08 48 8b 04 24 48 29 c2 48 89 d5 48 c1 fd 03 e9 00 fc ff ff 4c 89 e6 49 83 c4 08 48 89 0e <4c> 39 e5 0f 85 4d ff ff ff e9 a3 fe ff ff 48 89 ea e9 ca fe ff ff
RSP: 002b:00007ffde006c6d0 EFLAGS: 00000216
RAX: 00007fdb6c053020 RBX: 00007fdb6e345720 RCX: ffffffff8168fc31
RDX: ffffffff8168fc31 RSI: 00007fdb6c053028 RDI: 00007fdb6bff9008
RBP: 00007fdb6c32eb18 R08: 00007fdb6d800000 R09: 00007fdb6d815f40
R10: 0000000000000000 R11: 00000000000000ff R12: 00007fdb6c053030
R13: 00007fdb6d815f40 R14: 00007fdb6bff9008 R15: 0000000000000000
FS:  00005555676c4500 GS:  0000000000000000