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 blkid:27142 blocked for more than 140 seconds.
Not tainted 4.14.154 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
blkid D28576 27142 1040 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2808 [inline]
__schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384
schedule+0x92/0x1c0 kernel/sched/core.c:3428
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3486
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x73c/0x1470 kernel/locking/mutex.c:893
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
lo_ioctl+0x8f/0x1ce0 drivers/block/loop.c:1404
__blkdev_driver_ioctl block/ioctl.c:297 [inline]
blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
block_ioctl+0xde/0x120 fs/block_dev.c:1881
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7f360b096347
RSP: 002b:00007ffe71571e98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000e7c030 RCX: 00007f360b096347
RDX: 0000000000000000 RSI: 0000000000005331 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007f360b3465a0 R09: 0000000000000008
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000e00 R14: 0000000000000003 R15: 0000000000000005
INFO: task syz-executor.2:27147 blocked for more than 140 seconds.
Not tainted 4.14.154 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28880 27147 17336 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2808 [inline]
__schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384
schedule+0x92/0x1c0 kernel/sched/core.c:3428
__rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline]
rwsem_down_read_failed+0x1f6/0x390 kernel/locking/rwsem-xadd.c:309
call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94
__down_read arch/x86/include/asm/rwsem.h:66 [inline]
down_read+0x49/0xb0 kernel/locking/rwsem.c:26
__get_super.part.0+0x1cb/0x280 fs/super.c:678
__get_super include/linux/spinlock.h:317 [inline]
get_super+0x2e/0x50 fs/super.c:707
fsync_bdev+0x19/0xd0 fs/block_dev.c:495
invalidate_partition+0x36/0x60 block/genhd.c:1506
drop_partitions block/partition-generic.c:442 [inline]
rescan_partitions+0xe3/0x860 block/partition-generic.c:515
__blkdev_reread_part+0x15c/0x1e0 block/ioctl.c:173
blkdev_reread_part+0x27/0x40 block/ioctl.c:193
loop_reread_partitions+0x7c/0x90 drivers/block/loop.c:614
loop_set_status+0xc25/0x11f0 drivers/block/loop.c:1183
loop_set_status64+0xa6/0xf0 drivers/block/loop.c:1301
lo_ioctl+0x5c1/0x1ce0 drivers/block/loop.c:1431
__blkdev_driver_ioctl block/ioctl.c:297 [inline]
blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
block_ioctl+0xde/0x120 fs/block_dev.c:1881
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a4a7
RSP: 002b:00007f097da0b9f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f097da0c6d4 RCX: 000000000045a4a7
RDX: 00007f097da0bab0 RSI: 0000000000004c04 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000000000005 R15: 00000000ffffffff
INFO: task syz-executor.2:27150 blocked for more than 140 seconds.
Not tainted 4.14.154 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D29392 27150 17336 0x80000004
Call Trace:
context_switch kernel/sched/core.c:2808 [inline]
__schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384
schedule+0x92/0x1c0 kernel/sched/core.c:3428
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3486
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x73c/0x1470 kernel/locking/mutex.c:893
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
lo_ioctl+0x8f/0x1ce0 drivers/block/loop.c:1404
__blkdev_driver_ioctl block/ioctl.c:297 [inline]
blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
ioctl_by_bdev+0xa5/0x110 fs/block_dev.c:2066
udf_get_last_session+0x87/0xe0 fs/udf/lowlevel.c:37
udf_fill_super+0x114d/0x157f fs/udf/super.c:2146
mount_bdev+0x2be/0x370 fs/super.c:1134
udf_mount+0x35/0x40 fs/udf/super.c:132
mount_fs+0x97/0x2a1 fs/super.c:1237
vfs_kern_mount.part.0+0x5e/0x3d0 fs/namespace.c:1046
vfs_kern_mount fs/namespace.c:1036 [inline]
do_new_mount fs/namespace.c:2549 [inline]
do_mount+0x417/0x27d0 fs/namespace.c:2879
SYSC_mount fs/namespace.c:3095 [inline]
SyS_mount+0xab/0x120 fs/namespace.c:3072
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a639
RSP: 002b:00007f097d9eac78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045a639
RDX: 0000000020000200 RSI: 0000000020000180 RDI: 0000000020000140
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f097d9eb6d4
R13: 00000000004c71c0 R14: 00000000004dc948 R15: 00000000ffffffff
Showing all locks held in the system:
1 lock held by khungtaskd/1018:
#0: (tasklist_lock){.+.+}, at: [<ffffffff8148bb78>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4544
2 locks held by getty/6849:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861ce8d3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83114c06>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6850:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861ce8d3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83114c06>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6851:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861ce8d3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83114c06>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6852:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861ce8d3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83114c06>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6853:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861ce8d3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83114c06>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6854:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861ce8d3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83114c06>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6855:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861ce8d3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83114c06>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
1 lock held by blkid/27142:
#0: (&lo->lo_ctl_mutex/1){+.+.}, at: [<ffffffff83739f4f>] lo_ioctl+0x8f/0x1ce0 drivers/block/loop.c:1404
3 locks held by syz-executor.2/27147:
#0: (&lo->lo_ctl_mutex/1){+.+.}, at: [<ffffffff83739f4f>] lo_ioctl+0x8f/0x1ce0 drivers/block/loop.c:1404
#1: (&bdev->bd_mutex){+.+.}, at: [<ffffffff82cb2b8f>] blkdev_reread_part+0x1f/0x40 block/ioctl.c:192
#2: (&type->s_umount_key#78){++++}, at: [<ffffffff818e5dcb>] __get_super.part.0+0x1cb/0x280 fs/super.c:678
2 locks held by syz-executor.2/27150:
#0: (&type->s_umount_key#77/1){+.+.}, at: [<ffffffff818e69b1>] alloc_super fs/super.c:251 [inline]
#0: (&type->s_umount_key#77/1){+.+.}, at: [<ffffffff818e69b1>] sget_userns+0x551/0xc30 fs/super.c:516
#1: (&lo->lo_ctl_mutex/1){+.+.}, at: [<ffffffff83739f4f>] lo_ioctl+0x8f/0x1ce0 drivers/block/loop.c:1404
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1018 Comm: khungtaskd Not tainted 4.14.154 #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+0x142/0x197 lib/dump_stack.c:58
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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.154 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffffffff87676240 task.stack: ffffffff87600000
RIP: 0010:__sanitizer_cov_trace_pc+0x28/0x60 kernel/kcov.c:68
RSP: 0018:ffffffff87607c50 EFLAGS: 00000097
RAX: ffffffff87676240 RBX: 000000000000002b RCX: 0000000000000029
RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff8880aee23a18
RBP: ffffffff87607c88 R08: 000000000000084c R09: ffffffff88c88820
R10: ffffffff87676ac0 R11: ffffffff87676240 R12: 000000000000002b
R13: 0000000000000000 R14: ffff8880aee23a18 R15: 0052080000000000
FS: 0000000000000000(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c42c805b68 CR3: 0000000096b32000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
find_next_bit+0x28/0x30 lib/find_bit.c:64
next_pending_bucket kernel/time/timer.c:1361 [inline]
__next_timer_interrupt+0xd7/0x140 kernel/time/timer.c:1381
get_next_timer_interrupt+0x97/0x2f0 kernel/time/timer.c:1489
tick_nohz_stop_sched_tick kernel/time/tick-sched.c:719 [inline]
__tick_nohz_idle_enter+0xafe/0x1380 kernel/time/tick-sched.c:950
tick_nohz_idle_enter+0x105/0x1b0 kernel/time/tick-sched.c:993
do_idle+0x29/0x3d0 kernel/sched/idle.c:223
cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:351
rest_init+0x1d9/0x1e2 init/main.c:435
start_kernel+0x6df/0x6fd init/main.c:709
x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:399
x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:380
secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240
Code: ec ff ff 65 48 8b 04 25 40 ee 01 00 48 85 c0 74 1a 65 8b 15 eb b3 a4 7e 81 e2 00 01 1f 00 75 0b 8b 90 c8 12 00 00 83 fa 01 74 01 <c3> 55 48 89 e5 48 8b 75 08 48 8b 88 d0 12 00 00 8b 80 cc 12 00