protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
INFO: task syz-executor.2:14270 blocked for more than 140 seconds.
Not tainted 5.0.0-rc6+ #69
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28224 14270 18663 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2844 [inline]
__schedule+0x817/0x1cc0 kernel/sched/core.c:3485
schedule+0x92/0x180 kernel/sched/core.c:3529
schedule_timeout+0x8ca/0xfd0 kernel/time/timer.c:1779
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common kernel/sched/completion.c:115 [inline]
wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136
__synchronize_srcu+0x197/0x250 kernel/rcu/srcutree.c:946
synchronize_srcu_expedited kernel/rcu/srcutree.c:971 [inline]
synchronize_srcu+0x239/0x3e8 kernel/rcu/srcutree.c:1022
kvm_page_track_unregister_notifier+0xe7/0x130 arch/x86/kvm/page_track.c:214
kvm_mmu_uninit_vm+0x1e/0x30 arch/x86/kvm/mmu.c:5552
kvm_arch_destroy_vm+0x3e0/0x4f0 arch/x86/kvm/x86.c:9258
kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:748 [inline]
kvm_put_kvm+0x55b/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:769
kvm_vcpu_release+0x7b/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2495
__fput+0x2df/0x8d0 fs/file_table.c:278
____fput+0x16/0x20 fs/file_table.c:309
task_work_run+0x14a/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:188 [inline]
exit_to_usermode_loop+0x273/0x2c0 arch/x86/entry/common.c:166
prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x411d41
Code: 00 00 8b b3 30 01 00 00 31 c0 bf d0 36 44 00 e8 05 f3 00 00 8b b3 08 01 00 00 31 c0 bf e4 36 44 00 e8 f3 f2 00 00 8b 83 e0 00 <00> 00 48 89 ee bf f9 36 44 00 85 c0 49 0f 44 f4 31 c0 e8 d8 f2 00
RSP: 002b:0000000000a4fd90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000411d41
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000021576e50 R09: 0000000021576e54
R10: 0000000000a4fcc0 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00000000000005a7 R15: 0000000000000002
Showing all locks held in the system:
1 lock held by khungtaskd/1039:
#0: 000000008b4c63e3 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4389
1 lock held by rsyslogd/7188:
#0: 00000000ca6b0081 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:795
2 locks held by getty/7300:
#0: 0000000033b040ef (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000b4085c4a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/7301:
#0: 00000000d8470ab3 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000075bc2b15 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
net_ratelimit: 25 callbacks suppressed
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_1
2 locks held by getty/7302:
#0: 00000000204348de (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000099ffb8cd (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/7303:
#0: 000000007e6b8215 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000059fda2eb (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/7304:
#0: 000000008e6e02ad (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000078b95746 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/7305:
#0: 00000000b2467860 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000f8651f65 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/7306:
#0: 00000000179ed92d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000bddde053 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
3 locks held by kworker/1:0/30517:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1039 Comm: khungtaskd Not tainted 5.0.0-rc6+ #69
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+0x63/0xa4 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1be/0x236 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:203 [inline]
watchdog+0x9df/0xee0 kernel/hung_task.c:287
kthread+0x357/0x430 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 30517 Comm: kworker/1:0 Not tainted 5.0.0-rc6+ #69
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: rcu_gp process_srcu
RIP: 0010:delay_tsc+0x33/0xc0 arch/x86/lib/delay.c:68
Code: bf 01 00 00 00 41 55 41 54 53 e8 c8 2a 4d fa e8 63 78 2a fc 41 89 c5 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 a3 2a 4d fa e8 3e 78 2a fc 44 39 e8 75 36 0f ae
RSP: 0018:ffff888085bc7bb0 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 000003c15149db6b RCX: 0000000000000000
RDX: 0000000000000004 RSI: ffffffff832b1798 RDI: 0000000000000001
RBP: ffff888085bc7bd0 R08: ffff8880a07ee180 R09: 0000000000000040
R10: 0000000000000040 R11: ffffc90011f9ffcf R12: 000003c15149d5c4
R13: 0000000000000001 R14: 0000000000002ced R15: 00000000000094a4
FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c42014de80 CR3: 0000000092a57000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__delay arch/x86/lib/delay.c:161 [inline]
__const_udelay+0x5f/0x80 arch/x86/lib/delay.c:175
try_check_zero+0x201/0x330 kernel/rcu/srcutree.c:730
srcu_advance_state kernel/rcu/srcutree.c:1152 [inline]
process_srcu+0x229/0xec0 kernel/rcu/srcutree.c:1261
process_one_work+0x98e/0x1790 kernel/workqueue.c:2173
worker_thread+0x98/0xe40 kernel/workqueue.c:2319
kthread+0x357/0x430 kernel/kthread.c:246
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352