ip6_tunnel: tls xmit: Local address not yet configured!
ip6_tunnel: tls xmit: Local address not yet configured!
ip6_tunnel: tls xmit: Local address not yet configured!
ip6_tunnel: tls xmit: Local address not yet configured!
INFO: task syz-executor.3:21050 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3 D25312 21050 1 0x00000004
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
lo_open+0x19/0xb0 drivers/block/loop.c:1624
__blkdev_get+0x267/0xf90 fs/block_dev.c:1472
blkdev_get+0x97/0x8b0 fs/block_dev.c:1612
blkdev_open+0x1cc/0x250 fs/block_dev.c:1770
do_dentry_open+0x44e/0xe20 fs/open.c:789
vfs_open+0x105/0x230 fs/open.c:903
do_last fs/namei.c:3539 [inline]
path_openat+0xb6c/0x2be0 fs/namei.c:3681
do_filp_open+0x1a1/0x280 fs/namei.c:3715
do_sys_open+0x2ca/0x590 fs/open.c:1096
do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4143f0
RSP: 002b:00007fff40939cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000092794 RCX: 00000000004143f0
RDX: 00007fff40939d4a RSI: 0000000000000002 RDI: 00007fff40939d40
RBP: 0000000000000561 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff40939cf0 R14: 0000000000092459 R15: 00007fff40939d00
INFO: task syz-executor.2:29466 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D25312 29466 1 0x00000004
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
lo_open+0x19/0xb0 drivers/block/loop.c:1624
__blkdev_get+0x267/0xf90 fs/block_dev.c:1472
blkdev_get+0x97/0x8b0 fs/block_dev.c:1612
blkdev_open+0x1cc/0x250 fs/block_dev.c:1770
do_dentry_open+0x44e/0xe20 fs/open.c:789
vfs_open+0x105/0x230 fs/open.c:903
do_last fs/namei.c:3539 [inline]
path_openat+0xb6c/0x2be0 fs/namei.c:3681
do_filp_open+0x1a1/0x280 fs/namei.c:3715
do_sys_open+0x2ca/0x590 fs/open.c:1096
do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4143f0
RSP: 002b:00007fff56bfad38 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00000000000924dd RCX: 00000000004143f0
RDX: 00007fff56bfadca RSI: 0000000000000002 RDI: 00007fff56bfadc0
RBP: 0000000000000415 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff56bfad70 R14: 000000000009244a R15: 00007fff56bfad80
INFO: task syz-executor.0:32416 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D29104 32416 21350 0x80000002
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
blkdev_put+0x27/0x4c0 fs/block_dev.c:1814
blkdev_close+0x86/0xb0 fs/block_dev.c:1863
__fput+0x25e/0x710 fs/file_table.c:210
task_work_run+0x125/0x1a0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9cb/0x2a20 kernel/exit.c:875
do_group_exit+0x100/0x2e0 kernel/exit.c:978
get_signal+0x39f/0x1cc0 kernel/signal.c:2426
do_signal+0x96/0x15d0 arch/x86/kernel/signal.c:814
exit_to_usermode_loop+0x11d/0x160 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+0x3a3/0x520 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a679
RSP: 002b:00007f2914040cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000075bf28 RCX: 000000000045a679
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bf28
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf2c
R13: 00007ffc20bc7c6f R14: 00007f29140419c0 R15: 000000000075bf2c
INFO: task syz-executor.0:32420 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D28328 32420 21350 0x80000002
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
blkdev_put+0x27/0x4c0 fs/block_dev.c:1814
blkdev_close+0x86/0xb0 fs/block_dev.c:1863
__fput+0x25e/0x710 fs/file_table.c:210
task_work_run+0x125/0x1a0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9cb/0x2a20 kernel/exit.c:875
do_group_exit+0x100/0x2e0 kernel/exit.c:978
get_signal+0x39f/0x1cc0 kernel/signal.c:2426
do_signal+0x96/0x15d0 arch/x86/kernel/signal.c:814
exit_to_usermode_loop+0x11d/0x160 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+0x3a3/0x520 arch/x86/entry/common.c:297
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a679
RSP: 002b:00007f2914040cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000075bf28 RCX: 000000000045a679
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bf28
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf2c
R13: 00007ffc20bc7c6f R14: 00007f29140419c0 R15: 000000000075bf2c
INFO: task syz-executor.4:1558 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4 D25248 1558 1 0x00000004
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
lo_open+0x19/0xb0 drivers/block/loop.c:1624
__blkdev_get+0x963/0xf90 fs/block_dev.c:1537
blkdev_get+0x97/0x8b0 fs/block_dev.c:1612
blkdev_open+0x1cc/0x250 fs/block_dev.c:1770
do_dentry_open+0x44e/0xe20 fs/open.c:789
vfs_open+0x105/0x230 fs/open.c:903
do_last fs/namei.c:3539 [inline]
path_openat+0xb6c/0x2be0 fs/namei.c:3681
do_filp_open+0x1a1/0x280 fs/namei.c:3715
do_sys_open+0x2ca/0x590 fs/open.c:1096
do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4143f0
RSP: 002b:00007ffdc9996628 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00000000000924e9 RCX: 00000000004143f0
RDX: 00007ffdc99966ba RSI: 0000000000000002 RDI: 00007ffdc99966b0
RBP: 0000000000000226 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdc9996660 R14: 0000000000092447 R15: 00007ffdc9996670
INFO: task syz-executor.1:1941 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1 D25312 1941 1 0x00000004
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
lo_open+0x19/0xb0 drivers/block/loop.c:1624
__blkdev_get+0x267/0xf90 fs/block_dev.c:1472
blkdev_get+0x97/0x8b0 fs/block_dev.c:1612
blkdev_open+0x1cc/0x250 fs/block_dev.c:1770
do_dentry_open+0x44e/0xe20 fs/open.c:789
vfs_open+0x105/0x230 fs/open.c:903
do_last fs/namei.c:3539 [inline]
path_openat+0xb6c/0x2be0 fs/namei.c:3681
do_filp_open+0x1a1/0x280 fs/namei.c:3715
do_sys_open+0x2ca/0x590 fs/open.c:1096
do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4143f0
RSP: 002b:00007ffe264df218 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00000000000925e5 RCX: 00000000004143f0
RDX: 00007ffe264df2aa RSI: 0000000000000002 RDI: 00007ffe264df2a0
RBP: 000000000000021d R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe264df250 R14: 00000000000922b2 R15: 00007ffe264df260
INFO: task syz-executor.5:9178 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5 D28624 9178 5342 0x00000004
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
loop_control_ioctl+0x183/0x310 drivers/block/loop.c:1997
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0xabe/0x1040 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a679
RSP: 002b:00007f319dd21c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a679
RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f319dd226d4
R13: 00000000004c420d R14: 00000000004d9848 R15: 00000000ffffffff
INFO: task syz-executor.5:9186 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5 D28592 9186 5342 0x00000004
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
loop_control_ioctl+0x71/0x310 drivers/block/loop.c:1983
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0xabe/0x1040 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a679
RSP: 002b:00007f319dd00c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a679
RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f319dd016d4
R13: 00000000004c41e2 R14: 00000000004d9818 R15: 00000000ffffffff
INFO: task syz-executor.0:9175 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D27728 9175 21350 0x00000004
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
blkdev_reread_part+0x1b/0x40 block/ioctl.c:192
loop_reread_partitions+0x7f/0x90 drivers/block/loop.c:614
loop_set_status+0xbff/0x11f0 drivers/block/loop.c:1183
loop_set_status64+0xa5/0x100 drivers/block/loop.c:1301
lo_ioctl+0xd1/0x1a30 drivers/block/loop.c:1431
__blkdev_driver_ioctl block/ioctl.c:297 [inline]
blkdev_ioctl+0x8d0/0x1870 block/ioctl.c:594
block_ioctl+0xd9/0x120 fs/block_dev.c:1881
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0xabe/0x1040 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a4e7
RSP: 002b:00007f29140409f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f29140416d4 RCX: 000000000045a4e7
RDX: 00007f2914040ab0 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.0:9185 blocked for more than 140 seconds.
Not tainted 4.14.157-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D28752 9185 21350 0x00000004
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3499
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0x595/0x13e0 kernel/locking/mutex.c:893
__blkdev_get+0xf3/0xf90 fs/block_dev.c:1457
blkdev_get+0x97/0x8b0 fs/block_dev.c:1612
blkdev_open+0x1cc/0x250 fs/block_dev.c:1770
do_dentry_open+0x44e/0xe20 fs/open.c:789
vfs_open+0x105/0x230 fs/open.c:903
do_last fs/namei.c:3539 [inline]
path_openat+0xb6c/0x2be0 fs/namei.c:3681
do_filp_open+0x1a1/0x280 fs/namei.c:3715
do_sys_open+0x2ca/0x590 fs/open.c:1096
do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x414411
RSP: 002b:00007f291401f9f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f29140206d4 RCX: 0000000000414411
RDX: 00007f291401fbaa RSI: 0000000000000002 RDI: 00007f291401fba0
RBP: 0000000000000001 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000000000004 R14: 00007f29140206d4 R15: 00000000ffffffff
Showing all locks held in the system:
1 lock held by khungtaskd/23:
#0: (tasklist_lock){.+.+}, at: [<000000003f0676fd>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4544
1 lock held by rsyslogd/1627:
#0: (&f->f_pos_lock){+.+.}, at: [<00000000ba58f922>] __fdget_pos+0xb5/0xd0 fs/file.c:769
2 locks held by getty/1754:
#0: (&tty->ldisc_sem){++++}, at: [<00000000976e2aa7>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
#1: (&ldata->atomic_read_lock){+.+.}, at: [<000000003816c603>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156
2 locks held by syz-executor.3/21050:
#0: (&bdev->bd_mutex){+.+.}, at: [<00000000aa4867c3>] __blkdev_get+0xf3/0xf90 fs/block_dev.c:1457
#1: (loop_index_mutex){+.+.}, at: [<000000003759aa63>] lo_open+0x19/0xb0 drivers/block/loop.c:1624
2 locks held by syz-executor.2/29466:
#0: (&bdev->bd_mutex){+.+.}, at: [<00000000aa4867c3>] __blkdev_get+0xf3/0xf90 fs/block_dev.c:1457
#1: (loop_index_mutex){+.+.}, at: [<000000003759aa63>] lo_open+0x19/0xb0 drivers/block/loop.c:1624
1 lock held by syz-executor.0/32416:
#0: (&bdev->bd_mutex){+.+.}, at: [<0000000077d4c9b7>] blkdev_put+0x27/0x4c0 fs/block_dev.c:1814
1 lock held by syz-executor.0/32420:
#0: (&bdev->bd_mutex){+.+.}, at: [<0000000077d4c9b7>] blkdev_put+0x27/0x4c0 fs/block_dev.c:1814
2 locks held by syz-executor.4/1558:
#0: (&bdev->bd_mutex){+.+.}, at: [<00000000aa4867c3>] __blkdev_get+0xf3/0xf90 fs/block_dev.c:1457
#1: (loop_index_mutex){+.+.}, at: [<000000003759aa63>] lo_open+0x19/0xb0 drivers/block/loop.c:1624
2 locks held by syz-executor.1/1941:
#0: (&bdev->bd_mutex){+.+.}, at: [<00000000aa4867c3>] __blkdev_get+0xf3/0xf90 fs/block_dev.c:1457
#1: (loop_index_mutex){+.+.}, at: [<000000003759aa63>] lo_open+0x19/0xb0 drivers/block/loop.c:1624
2 locks held by syz-executor.5/9178:
#0: (loop_index_mutex){+.+.}, at: [<000000005f527da8>] loop_control_ioctl+0x71/0x310 drivers/block/loop.c:1983
#1: (&lo->lo_ctl_mutex#2){+.+.}, at: [<00000000d909d4ce>] loop_control_ioctl+0x183/0x310 drivers/block/loop.c:1997
1 lock held by syz-executor.5/9186:
#0: (loop_index_mutex){+.+.}, at: [<000000005f527da8>] loop_control_ioctl+0x71/0x310 drivers/block/loop.c:1983
2 locks held by syz-executor.0/9175:
#0: (&lo->lo_ctl_mutex/1){+.+.}, at: [<00000000283021b0>] lo_ioctl+0x86/0x1a30 drivers/block/loop.c:1404
#1: (&bdev->bd_mutex){+.+.}, at: [<00000000fe9f0cb7>] blkdev_reread_part+0x1b/0x40 block/ioctl.c:192
1 lock held by syz-executor.0/9185:
#0: (&bdev->bd_mutex){+.+.}, at: [<00000000aa4867c3>] __blkdev_get+0xf3/0xf90 fs/block_dev.c:1457
2 locks held by blkid/9181:
#0: (&bdev->bd_mutex){+.+.}, at: [<00000000aa4867c3>] __blkdev_get+0xf3/0xf90 fs/block_dev.c:1457
#1: (loop_index_mutex){+.+.}, at: [<000000003759aa63>] lo_open+0x19/0xb0 drivers/block/loop.c:1624
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.157-syzkaller #0
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0xe5/0x154 lib/dump_stack.c:58
nmi_cpu_backtrace.cold+0x47/0x86 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x119/0x147 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline]
watchdog+0x629/0xbe0 kernel/hung_task.c:274
kthread+0x31f/0x430 kernel/kthread.c:232
ret_from_fork+0x3a/0x50 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 4.14.157-syzkaller #0
task: 0000000071b3fd74 task.stack: 00000000a5966bec
RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:100
RSP: 0018:ffffffff99c07bc8 EFLAGS: 00000046
RAX: ffffffff9789d2c0 RBX: ffffffff99aac8a0 RCX: 0000000000000020
RDX: 1ffffffff3355931 RSI: 0000000000034d65 RDI: 0000000000000380
RBP: ffff8881dba1df40 R08: ffff88821ffff01c R09: ffff88821ffff008
R10: ffff88821ffff017 R11: ffff88821ffff010 R12: 0000000000034d65
R13: 0000000000000003 R14: 0000000000000000 R15: ffff8881dba249c0
FS: 0000000000000000(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000010c3000 CR3: 0000000175626005 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
apic_write arch/x86/include/asm/apic.h:395 [inline]
lapic_next_event+0x59/0x90 arch/x86/kernel/apic/apic.c:469
clockevents_program_event+0x1fd/0x2e0 kernel/time/clockevents.c:339
tick_program_event+0x78/0xd0 kernel/time/tick-oneshot.c:47
hrtimer_reprogram kernel/time/hrtimer.c:665 [inline]
hrtimer_start_range_ns+0xd3b/0x1090 kernel/time/hrtimer.c:995
hrtimer_start_expires include/linux/hrtimer.h:391 [inline]
tick_nohz_restart kernel/time/tick-sched.c:663 [inline]
tick_nohz_restart_sched_tick kernel/time/tick-sched.c:877 [inline]
__tick_nohz_idle_restart_tick+0x2bc/0x390 kernel/time/tick-sched.c:1159
tick_nohz_idle_exit+0x202/0x320 kernel/time/tick-sched.c:1197
do_idle+0x212/0x390 kernel/sched/idle.c:281
cpu_startup_entry+0xc6/0xd0 kernel/sched/idle.c:374
start_kernel+0x858/0x890 init/main.c:733
secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240
Code: 83 3d dc 73 d9 02 01 7f 02 5d c3 89 ef 5d e9 0b e5 fe ff 48 c7 c7 80 46 63 9a e8 54 23 4a 00 eb df 66 90 89 ff 89 b7 00 d0 5f ff <c3> 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb