INFO: task syz-executor.3:10492 blocked for more than 143 seconds.
      Not tainted 5.3.0-rc1+ #85
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D24088 10492      1 0x80004004
Call Trace:
 context_switch kernel/sched/core.c:3254 [inline]
 __schedule+0x755/0x1580 kernel/sched/core.c:3880
 schedule+0xa8/0x270 kernel/sched/core.c:3944
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4003
 __mutex_lock_common kernel/locking/mutex.c:1003 [inline]
 __mutex_lock+0x751/0x1340 kernel/locking/mutex.c:1073
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088
 acct_get kernel/acct.c:161 [inline]
 slow_acct_process kernel/acct.c:577 [inline]
 acct_process+0x2e5/0x61e kernel/acct.c:605
 do_exit+0x17d1/0x2eb0 kernel/exit.c:868
 do_group_exit+0x135/0x360 kernel/exit.c:982
 get_signal+0x47c/0x2500 kernel/signal.c:2728
 do_signal+0x87/0x1700 arch/x86/kernel/signal.c:815
 exit_to_usermode_loop+0x286/0x380 arch/x86/entry/common.c:159
 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:274 [inline]
 do_syscall_64+0x5a9/0x6a0 arch/x86/entry/common.c:299
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4137ba
Code: 4d 19 f6 4c 21 f6 49 09 f5 49 8d 72 01 49 89 d6 48 89 c1 48 89 f0 e9 73 ff ff ff 4a 8d 44 09 f8 4c 89 d6 eb e8 48 83 fe 08 73 <32> 48 89 c8 48 89 f1 4d 89 e6 49 d3 e4 48 83 f9 40 4d 19 ff 4d 21
RSP: 002b:00007ffc735dbea8 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000555556a0d940 RCX: 00000000004137ba
RDX: 0000000040000000 RSI: 00007ffc735dbee0 RDI: ffffffffffffffff
RBP: 0000000000002616 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007ffc735dbee0 R14: 0000555556a0d99b R15: 00007ffc735dbef0
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 1058 Comm: khungtaskd Not tainted 5.3.0-rc1+ #85
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
 watchdog+0x9d0/0xef0 kernel/hung_task.c:289
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60