INFO: task syz-executor.5:18687 blocked for more than 143 seconds.
Not tainted 5.4.0-rc7+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5 D27848 18687 7954 0x00004004
Call Trace:
context_switch kernel/sched/core.c:3384 [inline]
__schedule+0x7b7/0xc30 kernel/sched/core.c:4078
schedule+0x131/0x1e0 kernel/sched/core.c:4145
schedule_timeout+0x46/0x240 kernel/time/timer.c:1871
do_wait_for_common+0x2e7/0x4d0 kernel/sched/completion.c:83
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common kernel/sched/completion.c:115 [inline]
wait_for_completion+0x47/0x60 kernel/sched/completion.c:136
__synchronize_srcu+0x1d7/0x260 kernel/rcu/srcutree.c:921
synchronize_srcu+0x2cb/0x2f0 kernel/rcu/srcutree.c:999
kvm_page_track_unregister_notifier+0x103/0x110 arch/x86/kvm/page_track.c:212
kvm_mmu_uninit_vm+0x1c/0x20 arch/x86/kvm/mmu.c:5828
kvm_arch_destroy_vm+0x616/0x6b0 arch/x86/kvm/x86.c:9579
kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:702 [inline]
kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3444 [inline]
kvm_dev_ioctl+0xc80/0x1fd0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3496
do_vfs_ioctl+0x744/0x1730 fs/ioctl.c:46
ksys_ioctl fs/ioctl.c:713 [inline]
__do_sys_ioctl fs/ioctl.c:720 [inline]
__se_sys_ioctl fs/ioctl.c:718 [inline]
__x64_sys_ioctl+0xe3/0x120 fs/ioctl.c:718
do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a219
Code: Bad RIP value.
RSP: 002b:00007f1d2f08bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a219
RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1d2f08c6d4
R13: 00000000004c348b R14: 00000000004d7708 R15: 00000000ffffffff
Showing all locks held in the system:
1 lock held by khungtaskd/1070:
#0: ffffffff888d4040 (rcu_read_lock){....}, at: rcu_lock_acquire+0x4/0x30 include/linux/rcupdate.h:207
2 locks held by getty/7872:
#0: ffff88809329f090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272
#1: ffffc90005f252e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156
2 locks held by getty/7873:
#0: ffff888096a94090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272
#1: ffffc90005f492e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156
2 locks held by getty/7874:
#0: ffff88809132b090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272
#1: ffffc90005f352e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156
2 locks held by getty/7875:
#0: ffff888092f37090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272
#1: ffffc90005f412e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156
2 locks held by getty/7876:
#0: ffff888099d6a090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272
#1: ffffc90005f292e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156
2 locks held by getty/7877:
#0: ffff8880a2ee2090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272
#1: ffffc90005f452e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156
2 locks held by getty/7878:
#0: ffff8880a813f090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272
#1: ffffc90005f192e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1070 Comm: khungtaskd Not tainted 5.4.0-rc7+ #0
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+0x1fb/0x318 lib/dump_stack.c:118
nmi_cpu_backtrace+0xaf/0x1a0 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x174/0x290 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x10/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_all_cpu_backtrace+0x17/0x20 include/linux/nmi.h:146
check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
watchdog+0xbb9/0xbd0 kernel/hung_task.c:289
kthread+0x332/0x350 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__kasan_check_read+0x0/0x20 mm/kasan/common.c:91
Code: 99 ff 90 90 90 90 90 90 90 90 65 48 8b 04 25 c0 fd 01 00 ff 80 e0 12 00 00 c3 65 48 8b 04 25 c0 fd 01 00 ff 88 e0 12 00 00 c3 <55> 48 89 e5 89 f6 48 8b 4d 08 31 d2 e8 5f 23 00 00 5d c3 0f 1f 00
RSP: 0018:ffff8880aeb09c70 EFLAGS: 00000082
RAX: 1ffffffff10af021 RBX: ffff8880aeb35820 RCX: ffff8880a98bc340
RDX: 0000000000000102 RSI: 0000000000000004 RDI: ffff8880aeb35820
RBP: ffff8880aeb09c90 R08: ffffffff834870ba R09: fffffbfff12bc09d
R10: fffffbfff12bc09d R11: 0000000000000000 R12: 00000001000180aa
R13: dffffc0000000000 R14: ffffffff88578108 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001537410 CR3: 000000009b2e9000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock include/linux/rcupdate.h:600 [inline]
__queue_work+0x177/0xcd0 kernel/workqueue.c:1417
delayed_work_timer_fn+0x64/0x90 kernel/workqueue.c:1616
call_timer_fn+0x95/0x170 kernel/time/timer.c:1404
expire_timers kernel/time/timer.c:1444 [inline]
__run_timers+0x80f/0x990 kernel/time/timer.c:1773
run_timer_softirq+0x4a/0x90 kernel/time/timer.c:1786
__do_softirq+0x333/0x7c4 arch/x86/include/asm/paravirt.h:766
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x227/0x230 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x113/0x280 arch/x86/kernel/apic/apic.c:1137
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61
Code: 31 fa eb ae 89 d9 80 e1 07 80 c1 03 38 c1 7c ba 48 89 df e8 74 a4 31 fa eb b0 90 90 e9 07 00 00 00 0f 00 2d 06 ae 47 00 fb f4 90 e9 07 00 00 00 0f 00 2d f6 ad 47 00 f4 c3 90 90 55 48 89 e5
RSP: 0018:ffff8880a98cfe10 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff1115241 RBX: ffff8880a98bc340 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffffffff812b82ca RDI: ffff8880a98bcb84
RBP: ffff8880a98cfe18 R08: ffff8880a98bcb98 R09: ffffed1015317869
R10: ffffed1015317869 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff11015317868 R14: dffffc0000000000 R15: 1ffffffff111523f
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:571
default_idle_call+0x59/0xa0 kernel/sched/idle.c:94
cpuidle_idle_call kernel/sched/idle.c:154 [inline]
do_idle+0x140/0x670 kernel/sched/idle.c:263
cpu_startup_entry+0x25/0x30 kernel/sched/idle.c:355
start_secondary+0x384/0x410 arch/x86/kernel/smpboot.c:264
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:241