INFO: task kworker/u4:2:24 blocked for more than 143 seconds.
Not tainted 5.2.0+ #97
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:2 D24184 24 2 0x80004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:3254 [inline]
__schedule+0x755/0x1580 kernel/sched/core.c:3880
schedule+0xa8/0x270 kernel/sched/core.c:3944
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4003
__mutex_lock_common kernel/locking/mutex.c:1003 [inline]
__mutex_lock+0x751/0x1340 kernel/locking/mutex.c:1073
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
tipc_net_stop+0x2fa/0x320 net/tipc/net.c:169
tipc_exit_net+0x16/0x40 net/tipc/core.c:97
ops_exit_list.isra.0+0xaa/0x150 net/core/net_namespace.c:172
cleanup_net+0x4e2/0xa70 net/core/net_namespace.c:594
process_one_work+0x9af/0x1740 kernel/workqueue.c:2269
worker_thread+0x98/0xe40 kernel/workqueue.c:2415
kthread+0x361/0x430 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
INFO: task syz-executor.2:13855 blocked for more than 143 seconds.
Not tainted 5.2.0+ #97
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D24320 13855 1 0x80004002
Call Trace:
context_switch kernel/sched/core.c:3254 [inline]
__schedule+0x755/0x1580 kernel/sched/core.c:3880
schedule+0xa8/0x270 kernel/sched/core.c:3944
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4003
__mutex_lock_common kernel/locking/mutex.c:1003 [inline]
__mutex_lock+0x751/0x1340 kernel/locking/mutex.c:1073
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
netdev_run_todo+0x4d4/0x7b0 net/core/dev.c:8987
rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:112
tun_detach drivers/net/tun.c:743 [inline]
tun_chr_close+0xfc/0x180 drivers/net/tun.c:3439
__fput+0x2ff/0x890 fs/file_table.c:280
____fput+0x16/0x20 fs/file_table.c:313
task_work_run+0x145/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x92f/0x2ea0 kernel/exit.c:877
do_group_exit+0x135/0x360 kernel/exit.c:981
__do_sys_exit_group kernel/exit.c:992 [inline]
__se_sys_exit_group kernel/exit.c:990 [inline]
__x64_sys_exit_group+0x44/0x50 kernel/exit.c:990
do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: Bad RIP value.
RSP: 002b:00007ffec7957b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001c RCX: 0000000000459829
RDX: 0000000000413430 RSI: 0000000000a74ef0 RDI: 0000000000000043
RBP: 00000000004bf017 R08: 000000000000000c R09: 00000000000ee31c
R10: 0000555556a08940 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00007ffec7957c60 R14: 00000000000ee2c8 R15: 00007ffec7957c70
INFO: task syz-executor.1:1147 blocked for more than 143 seconds.
Not tainted 5.2.0+ #97
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1 D24320 1147 1 0x80004002
Call Trace:
context_switch kernel/sched/core.c:3254 [inline]
__schedule+0x755/0x1580 kernel/sched/core.c:3880
schedule+0xa8/0x270 kernel/sched/core.c:3944
exp_funnel_lock kernel/rcu/tree_exp.h:308 [inline]
synchronize_rcu_expedited+0x544/0x5b0 kernel/rcu/tree_exp.h:816
synchronize_net+0x3b/0x60 net/core/dev.c:9259
__tun_detach+0x3f5/0x1040 drivers/net/tun.c:707
tun_detach drivers/net/tun.c:740 [inline]
tun_chr_close+0xe0/0x180 drivers/net/tun.c:3439
__fput+0x2ff/0x890 fs/file_table.c:280
____fput+0x16/0x20 fs/file_table.c:313
task_work_run+0x145/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x92f/0x2ea0 kernel/exit.c:877
do_group_exit+0x135/0x360 kernel/exit.c:981
__do_sys_exit_group kernel/exit.c:992 [inline]
__se_sys_exit_group kernel/exit.c:990 [inline]
__x64_sys_exit_group+0x44/0x50 kernel/exit.c:990
do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: Bad RIP value.
RSP: 002b:00007ffe8bbd9168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001c RCX: 0000000000459829
RDX: 0000000000413430 RSI: 0000000000a74ef0 RDI: 0000000000000043
RBP: 00000000004bf017 R08: 000000000000000c R09: 00000000000ee31c
R10: 000055555611b940 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00007ffe8bbd92b0 R14: 00000000000ee2c9 R15: 00007ffe8bbd92c0
INFO: task syz-executor.0:20090 blocked for more than 144 seconds.
Not tainted 5.2.0+ #97
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D28704 20090 3752 0x00000004
Call Trace:
context_switch kernel/sched/core.c:3254 [inline]
__schedule+0x755/0x1580 kernel/sched/core.c:3880
schedule+0xa8/0x270 kernel/sched/core.c:3944
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4003
__mutex_lock_common kernel/locking/mutex.c:1003 [inline]
__mutex_lock+0x751/0x1340 kernel/locking/mutex.c:1073
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
sock_do_ioctl+0x24e/0x2f0 net/socket.c:1051
sock_ioctl+0x3ed/0x790 net/socket.c:1189
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:509 [inline]
do_vfs_ioctl+0xdb6/0x13e0 fs/ioctl.c:696
ksys_ioctl+0xab/0xd0 fs/ioctl.c:713
__do_sys_ioctl fs/ioctl.c:720 [inline]
__se_sys_ioctl fs/ioctl.c:718 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: Bad RIP value.
RSP: 002b:00007f2c31d90c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000020000000 RSI: 0000001000008912 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2c31d916d4
R13: 00000000004c0c29 R14: 00000000004d3c20 R15: 00000000ffffffff
INFO: task syz-executor.3:20104 blocked for more than 144 seconds.
Not tainted 5.2.0+ #97
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3 D27584 20104 16534 0x00000004
Call Trace:
context_switch kernel/sched/core.c:3254 [inline]
__schedule+0x755/0x1580 kernel/sched/core.c:3880
schedule+0xa8/0x270 kernel/sched/core.c:3944
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4003
__mutex_lock_common kernel/locking/mutex.c:1003 [inline]
__mutex_lock+0x751/0x1340 kernel/locking/mutex.c:1073
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
sock_do_ioctl+0x24e/0x2f0 net/socket.c:1051
sock_ioctl+0x3ed/0x790 net/socket.c:1189
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:509 [inline]
do_vfs_ioctl+0xdb6/0x13e0 fs/ioctl.c:696
ksys_ioctl+0xab/0xd0 fs/ioctl.c:713
__do_sys_ioctl fs/ioctl.c:720 [inline]
__se_sys_ioctl fs/ioctl.c:718 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: Bad RIP value.
RSP: 002b:00007f315200cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000020000000 RSI: 0000001000008912 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f315200d6d4
R13: 00000000004c0c29 R14: 00000000004d3c20 R15: 00000000ffffffff
INFO: task syz-executor.5:20132 blocked for more than 144 seconds.
Not tainted 5.2.0+ #97
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5 D29712 20132 12006 0x00000004
Call Trace:
context_switch kernel/sched/core.c:3254 [inline]
__schedule+0x755/0x1580 kernel/sched/core.c:3880
schedule+0xa8/0x270 kernel/sched/core.c:3944
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4003
__mutex_lock_common kernel/locking/mutex.c:1003 [inline]
__mutex_lock+0x751/0x1340 kernel/locking/mutex.c:1073
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
sock_do_ioctl+0x24e/0x2f0 net/socket.c:1051
sock_ioctl+0x3ed/0x790 net/socket.c:1189
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:509 [inline]
do_vfs_ioctl+0xdb6/0x13e0 fs/ioctl.c:696
ksys_ioctl+0xab/0xd0 fs/ioctl.c:713
__do_sys_ioctl fs/ioctl.c:720 [inline]
__se_sys_ioctl fs/ioctl.c:718 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: Bad RIP value.
RSP: 002b:00007efdcbf7ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000020000000 RSI: 0000001000008912 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007efdcbf7f6d4
R13: 00000000004c0c29 R14: 00000000004d3c20 R15: 00000000ffffffff
Showing all locks held in the system:
3 locks held by kworker/0:0/5:
#0: 00000000ca2a6787 ((wq_completion)events){+.+.}, at: __write_once_size include/linux/compiler.h:221 [inline]
#0: 00000000ca2a6787 ((wq_completion)events){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 00000000ca2a6787 ((wq_completion)events){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 00000000ca2a6787 ((wq_completion)events){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 00000000ca2a6787 ((wq_completion)events){+.+.}, at: set_work_data kernel/workqueue.c:620 [inline]
#0: 00000000ca2a6787 ((wq_completion)events){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:647 [inline]
#0: 00000000ca2a6787 ((wq_completion)events){+.+.}, at: process_one_work+0x88b/0x1740 kernel/workqueue.c:2240
#1: 000000007322d568 (deferred_process_work){+.+.}, at: process_one_work+0x8c1/0x1740 kernel/workqueue.c:2244
#2: 000000009930efbd (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
4 locks held by kworker/u4:2/24:
#0: 00000000b8d372cb ((wq_completion)netns){+.+.}, at: __write_once_size include/linux/compiler.h:221 [inline]
#0: 00000000b8d372cb ((wq_completion)netns){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 00000000b8d372cb ((wq_completion)netns){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 00000000b8d372cb ((wq_completion)netns){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 00000000b8d372cb ((wq_completion)netns){+.+.}, at: set_work_data kernel/workqueue.c:620 [inline]
#0: 00000000b8d372cb ((wq_completion)netns){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:647 [inline]
#0: 00000000b8d372cb ((wq_completion)netns){+.+.}, at: process_one_work+0x88b/0x1740 kernel/workqueue.c:2240
#1: 000000004782a238 (net_cleanup_work){+.+.}, at: process_one_work+0x8c1/0x1740 kernel/workqueue.c:2244
#2: 00000000a28d9920 (pernet_ops_rwsem){++++}, at: cleanup_net+0xae/0xa70 net/core/net_namespace.c:556
#3: 000000009930efbd (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
1 lock held by khungtaskd/1053:
#0: 0000000054249aed (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:5257
3 locks held by kworker/1:2/2857:
#0: 00000000bc8d780e ((wq_completion)ipv6_addrconf){+.+.}, at: __write_once_size include/linux/compiler.h:221 [inline]
#0: 00000000bc8d780e ((wq_completion)ipv6_addrconf){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 00000000bc8d780e ((wq_completion)ipv6_addrconf){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 00000000bc8d780e ((wq_completion)ipv6_addrconf){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 00000000bc8d780e ((wq_completion)ipv6_addrconf){+.+.}, at: set_work_data kernel/workqueue.c:620 [inline]
#0: 00000000bc8d780e ((wq_completion)ipv6_addrconf){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:647 [inline]
#0: 00000000bc8d780e ((wq_completion)ipv6_addrconf){+.+.}, at: process_one_work+0x88b/0x1740 kernel/workqueue.c:2240
#1: 00000000b0bf8297 ((addr_chk_work).work){+.+.}, at: process_one_work+0x8c1/0x1740 kernel/workqueue.c:2244
#2: 000000009930efbd (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
1 lock held by rsyslogd/9033:
#0: 00000000f196c93b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:801
2 locks held by getty/9123:
#0: 00000000e0b1e502 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000048566469 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9124:
#0: 0000000037b7e548 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000ef96a409 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9125:
#0: 00000000425bfa1f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000002772175c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9126:
#0: 000000006258c8ab (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000db5792f3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9127:
#0: 00000000404d7cde (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000004e7d21a3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9128:
#0: 00000000e9525678 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000b3f75441 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9129:
#0: 0000000029bd9625 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000e766e31d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by kworker/u4:8/9999:
#0: 00000000a6c03799 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1207 [inline]
#0: 00000000a6c03799 (&rq->lock){-.-.}, at: __schedule+0x1f5/0x1580 kernel/sched/core.c:3832
#1: 0000000054249aed (rcu_read_lock){....}, at: __update_idle_core+0x45/0x3f0 kernel/sched/fair.c:5820
1 lock held by syz-executor.2/13855:
#0: 000000009930efbd (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
1 lock held by syz-executor.1/1147:
#0: 000000009930efbd (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
1 lock held by syz-executor.0/20090:
#0: 000000009930efbd (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
1 lock held by syz-executor.3/20104:
#0: 000000009930efbd (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
1 lock held by syz-executor.5/20132:
#0: 000000009930efbd (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
1 lock held by syz-executor.5/20135:
#0: 000000009930efbd (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1053 Comm: khungtaskd Not tainted 5.2.0+ #97
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+0x70/0xb2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x23b/0x28b 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:205 [inline]
watchdog+0x9d0/0xef0 kernel/hung_task.c:289
kthread+0x361/0x430 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9999 Comm: kworker/u4:8 Not tainted 5.2.0+ #97
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:separate_irq_context kernel/locking/lockdep.c:3545 [inline]
RIP: 0010:__lock_acquire+0x65f/0x4c30 kernel/locking/lockdep.c:3864
Code: 77 48 8b b5 60 ff ff ff 48 8d 04 80 4c 8d 74 c6 d8 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 21 48 89 fa 48 c1 ea 03 0f b6 04 02 <48> 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 47 17 00 00 49 8d 7a 21
RSP: 0018:ffff888068aefb38 EFLAGS: 00000802
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81588694
RDX: 1ffff11012630183 RSI: ffff888093180bd0 RDI: ffff888093180c19
RBP: ffff888068aefc50 R08: 1ffffffff14a7740 R09: fffffbfff14a7741
R10: ffff888093180c20 R11: ffff888093180340 R12: 0000000000000029
R13: 4d24e336586895d7 R14: ffff888093180bf8 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c4213d5800 CR3: 0000000095df9000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4413
rcu_lock_acquire include/linux/rcupdate.h:208 [inline]
rcu_read_lock include/linux/rcupdate.h:592 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:407 [inline]
batadv_nc_worker+0x117/0x760 net/batman-adv/network-coding.c:718
process_one_work+0x9af/0x1740 kernel/workqueue.c:2269
worker_thread+0x98/0xe40 kernel/workqueue.c:2415
kthread+0x361/0x430 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352