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
protocol 88fb is buggy, dev hsr_slave_1
INFO: task syz-executor.0:7827 blocked for more than 140 seconds.
Not tainted 4.14.148 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D28488 7827 6859 0x00000006
Call Trace:
context_switch kernel/sched/core.c:2807 [inline]
__schedule+0x7b8/0x1cd0 kernel/sched/core.c:3383
schedule+0x92/0x1c0 kernel/sched/core.c:3427
schedule_timeout+0x93b/0xe10 kernel/time/timer.c:1721
do_wait_for_common kernel/sched/completion.c:91 [inline]
__wait_for_common kernel/sched/completion.c:112 [inline]
wait_for_common kernel/sched/completion.c:123 [inline]
wait_for_completion+0x27c/0x420 kernel/sched/completion.c:144
kthread_stop+0xda/0x650 kernel/kthread.c:530
sdr_cap_stop_streaming+0x1fc/0x320 drivers/media/platform/vivid/vivid-sdr-cap.c:313
__vb2_queue_cancel+0xa3/0x890 drivers/media/v4l2-core/videobuf2-core.c:1655
vb2_core_streamoff+0x52/0x110 drivers/media/v4l2-core/videobuf2-core.c:1788
__vb2_cleanup_fileio+0x78/0x150 drivers/media/v4l2-core/videobuf2-core.c:2313
vb2_core_queue_release+0x1d/0x80 drivers/media/v4l2-core/videobuf2-core.c:2040
vb2_queue_release drivers/media/v4l2-core/videobuf2-v4l2.c:669 [inline]
_vb2_fop_release+0x1cf/0x2a0 drivers/media/v4l2-core/videobuf2-v4l2.c:840
vb2_fop_release+0x75/0xc0 drivers/media/v4l2-core/videobuf2-v4l2.c:854
vivid_fop_release+0x180/0x3f0 drivers/media/platform/vivid/vivid-core.c:486
v4l2_release+0xf9/0x190 drivers/media/v4l2-core/v4l2-dev.c:446
__fput+0x275/0x7a0 fs/file_table.c:210
____fput+0x16/0x20 fs/file_table.c:244
task_work_run+0x114/0x190 kernel/task_work.c:113
get_signal+0x18a8/0x1cd0 kernel/signal.c:2220
do_signal+0x86/0x19a0 arch/x86/kernel/signal.c:814
exit_to_usermode_loop+0x15c/0x220 arch/x86/entry/common.c:160
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
do_syscall_64+0x4bc/0x640 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459a59
RSP: 002b:00007f1c362e1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013
RAX: 0000000000008000 RBX: 0000000000000003 RCX: 0000000000459a59
RDX: 0000000000000001 RSI: 00000000200003c0 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1c362e26d4
R13: 00000000004c6fc3 R14: 00000000004dca50 R15: 00000000ffffffff
Showing all locks held in the system:
1 lock held by khungtaskd/1015:
#0: (tasklist_lock){.+.+}, at: [<ffffffff814875e8>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4544
2 locks held by getty/6813:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111466>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6814:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111466>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6815:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111466>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6816:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111466>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6817:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111466>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6818:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111466>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6819:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111466>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1015 Comm: khungtaskd Not tainted 4.14.148 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x138/0x197 lib/dump_stack.c:53
nmi_cpu_backtrace.cold+0x57/0x94 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x141/0x189 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:140 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline]
watchdog+0x5e7/0xb90 kernel/hung_task.c:274
kthread+0x319/0x430 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 64 Comm: kworker/u4:2 Not tainted 4.14.148 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
task: ffff8880a9838180 task.stack: ffff8880a9840000
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:360 [inline]
RIP: 0010:rcu_is_watching+0x10/0xb0 kernel/rcu/tree.c:1130
RSP: 0018:ffff8880a9847c58 EFLAGS: 00000282
RAX: ffff8880a9838180 RBX: ffff888081fd0940 RCX: 1ffffffff0f565b0
RDX: 0000000000000000 RSI: ffffffff869d3080 RDI: ffff8880a98389fc
RBP: ffff8880a9847c68 R08: 0000000000000000 R09: ffff8880a9838a70
R10: ffff8880a9838a50 R11: ffff8880a9838180 R12: 0000000000000000
R13: ffff88806b525fa8 R14: ffff88806b525540 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5c1641b140 CR3: 000000009565d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_unlock include/linux/rcupdate.h:681 [inline]
batadv_nc_process_nc_paths.part.0+0x2a2/0x340 net/batman-adv/network-coding.c:707
batadv_nc_process_nc_paths net/batman-adv/network-coding.c:687 [inline]
batadv_nc_worker+0x4bb/0x6d0 net/batman-adv/network-coding.c:735
process_one_work+0x863/0x1600 kernel/workqueue.c:2114
worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248
kthread+0x319/0x430 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 48 83 c4 08 5b 5d c3 48 89 45 f0 e8 fb fd 38 00 48 8b 45 f0 eb cb 0f 1f 44 00 00 55 48 89 e5 53 48 83 ec 08 65 ff 05 f0 44 b4 7e <e8> bb e6 8a 01 48 c7 c3 40 39 02 00 48 ba 00 00 00 00 00 fc ff