INFO: task syz-executor.3:16146 blocked for more than 143 seconds.
Not tainted 6.2.0-rc8-syzkaller-00127-gdbeed98d89ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:21576 pid:16146 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5296 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6609
schedule+0xc3/0x190 kernel/sched/core.c:6685
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6744
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
new_device_store+0x1b1/0x800 drivers/net/netdevsim/bus.c:160
kernfs_fop_write_iter+0x3a6/0x4f0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:2189 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7b2/0xbb0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb76383de7f
RSP: 002b:00007ffe2c147fd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb76383de7f
RDX: 0000000000000003 RSI: 00007ffe2c148020 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000000 R09: 00007ffe2c147f70
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fb7638e7722
R13: 00007ffe2c148020 R14: 0000000000000000 R15: 00007ffe2c1486f0
INFO: task syz-executor.2:16156 blocked for more than 143 seconds.
Not tainted 6.2.0-rc8-syzkaller-00127-gdbeed98d89ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:21576 pid:16156 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5296 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6609
schedule+0xc3/0x190 kernel/sched/core.c:6685
rwsem_down_write_slowpath+0xfcf/0x14a0 kernel/locking/rwsem.c:1190
unregister_netdevice_notifier+0x92/0x400 net/core/dev.c:1758
devlink_free+0x2c3/0x3f0 net/core/devlink.c:10171
nsim_drv_remove+0x139/0x160 drivers/net/netdevsim/dev.c:1683
device_remove drivers/base/dd.c:548 [inline]
__device_release_driver drivers/base/dd.c:1253 [inline]
device_release_driver_internal+0x4f7/0x880 drivers/base/dd.c:1279
bus_remove_device+0x2e9/0x400 drivers/base/bus.c:529
device_del+0x6e6/0xbd0 drivers/base/core.c:3666
device_unregister+0x20/0xc0 drivers/base/core.c:3698
nsim_bus_dev_del drivers/net/netdevsim/bus.c:310 [inline]
del_device_store+0x363/0x480 drivers/net/netdevsim/bus.c:219
kernfs_fop_write_iter+0x3a6/0x4f0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:2189 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7b2/0xbb0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd76403de7f
RSP: 002b:00007ffd43a0df10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd76403de7f
RDX: 0000000000000001 RSI: 00007ffd43a0df60 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000000 R09: 00007ffd43a0deb0
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fd7640e76fe
R13: 00007ffd43a0df60 R14: 0000000000000000 R15: 00007ffd43a0e630
INFO: task syz-executor.0:16168 blocked for more than 143 seconds.
Not tainted 6.2.0-rc8-syzkaller-00127-gdbeed98d89ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:21576 pid:16168 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5296 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6609
schedule+0xc3/0x190 kernel/sched/core.c:6685
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6744
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:209
kernfs_fop_write_iter+0x3a6/0x4f0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:2189 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7b2/0xbb0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1ac5a3de7f
RSP: 002b:00007fffffc2ec40 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f1ac5a3de7f
RDX: 0000000000000001 RSI: 00007fffffc2ec90 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000000 R09: 00007fffffc2ebe0
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f1ac5ae76fe
R13: 00007fffffc2ec90 R14: 0000000000000000 R15: 00007fffffc2f360
INFO: task syz-executor.4:16170 blocked for more than 144 seconds.
Not tainted 6.2.0-rc8-syzkaller-00127-gdbeed98d89ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:21576 pid:16170 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5296 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6609
schedule+0xc3/0x190 kernel/sched/core.c:6685
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6744
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:209
kernfs_fop_write_iter+0x3a6/0x4f0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:2189 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7b2/0xbb0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f28c303de7f
RSP: 002b:00007fff2c3d5a70 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f28c303de7f
RDX: 0000000000000001 RSI: 00007fff2c3d5ac0 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000000 R09: 00007fff2c3d5a10
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f28c30e76fe
R13: 00007fff2c3d5ac0 R14: 0000000000000000 R15: 00007fff2c3d6190
INFO: task syz-executor.1:16173 blocked for more than 144 seconds.
Not tainted 6.2.0-rc8-syzkaller-00127-gdbeed98d89ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:21576 pid:16173 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5296 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6609
schedule+0xc3/0x190 kernel/sched/core.c:6685
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6744
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:209
kernfs_fop_write_iter+0x3a6/0x4f0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:2189 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7b2/0xbb0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff665c3de7f
RSP: 002b:00007ffd8debd560 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff665c3de7f
RDX: 0000000000000001 RSI: 00007ffd8debd5b0 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000000 R09: 00007ffd8debd500
R10: 0000000000000000 R11: 0000000000000293 R12: 00007ff665ce76fe
R13: 00007ffd8debd5b0 R14: 0000000000000000 R15: 00007ffd8debdc80
INFO: task syz-executor.5:16177 blocked for more than 144 seconds.
Not tainted 6.2.0-rc8-syzkaller-00127-gdbeed98d89ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:21576 pid:16177 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5296 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6609
schedule+0xc3/0x190 kernel/sched/core.c:6685
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6744
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:209
kernfs_fop_write_iter+0x3a6/0x4f0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:2189 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7b2/0xbb0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe69283de7f
RSP: 002b:00007ffe28f56820 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe69283de7f
RDX: 0000000000000001 RSI: 00007ffe28f56870 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000000 R09: 00007ffe28f567c0
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe6928e76fe
R13: 00007ffe28f56870 R14: 0000000000000000 R15: 00007ffe28f56f40
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf25950 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf26150 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8cf25780 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4742:
#0: ffff88814a94a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
3 locks held by kworker/u4:22/16133:
#0: ffff888012613138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x77f/0x1370
#1: ffffc90005ef7d20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7c6/0x1370 kernel/workqueue.c:2264
#2: ffffffff8e072450 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf5/0xb80 net/core/net_namespace.c:575
2 locks held by kworker/u4:25/16136:
#0: ffff8880b983b1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:537
#1: ffff888020d3e130 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xb6/0x12b0 kernel/sched/core.c:4152
4 locks held by syz-executor.3/16146:
#0: ffff88807f14c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x26d/0xbb0 fs/read_write.c:580
#1: ffff88802332a888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x4f0 fs/kernfs/file.c:325
#2: ffff888147559ae8 (kn->active#52){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x4f0 fs/kernfs/file.c:326
#3: ffffffff8d9f5d28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: new_device_store+0x1b1/0x800 drivers/net/netdevsim/bus.c:160
6 locks held by syz-executor.2/16156:
#0: ffff88807f14c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x26d/0xbb0 fs/read_write.c:580
#1: ffff88802087d088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x4f0 fs/kernfs/file.c:325
#2: ffff888147559bd0 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x4f0 fs/kernfs/file.c:326
#3: ffffffff8d9f5d28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:209
#4: ffff88804f6660e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#4: ffff88804f6660e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1073 [inline]
#4: ffff88804f6660e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xba/0x880 drivers/base/dd.c:1276
#5: ffffffff8e072450 (pernet_ops_rwsem){++++}-{3:3}, at: unregister_netdevice_notifier+0x92/0x400 net/core/dev.c:1758
4 locks held by syz-executor.0/16168:
#0: ffff88807f14c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x26d/0xbb0 fs/read_write.c:580
#1: ffff8880584d0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x4f0 fs/kernfs/file.c:325
#2: ffff888147559bd0 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x4f0 fs/kernfs/file.c:326
#3: ffffffff8d9f5d28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:209
4 locks held by syz-executor.4/16170:
#0: ffff88807f14c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x26d/0xbb0 fs/read_write.c:580
#1: ffff88805ced2488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x4f0 fs/kernfs/file.c:325
#2: ffff888147559bd0 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x4f0 fs/kernfs/file.c:326
#3: ffffffff8d9f5d28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:209
4 locks held by syz-executor.1/16173:
#0: ffff88807f14c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x26d/0xbb0 fs/read_write.c:580
#1: ffff8880584de488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x4f0 fs/kernfs/file.c:325
#2: ffff888147559bd0 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x4f0 fs/kernfs/file.c:326
#3: ffffffff8d9f5d28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:209
4 locks held by syz-executor.5/16177:
#0: ffff88807f14c460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x26d/0xbb0 fs/read_write.c:580
#1: ffff888051bf8488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x4f0 fs/kernfs/file.c:325
#2: ffff888147559bd0 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x4f0 fs/kernfs/file.c:326
#3: ffffffff8d9f5d28 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:209
1 lock held by syz-executor.3/18031:
#0: ffffffff8e072450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4aa/0x790 net/core/net_namespace.c:486
1 lock held by syz-executor.2/18034:
#0: ffffffff8e072450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4aa/0x790 net/core/net_namespace.c:486
1 lock held by syz-executor.4/18037:
#0: ffffffff8e072450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4aa/0x790 net/core/net_namespace.c:486
1 lock held by syz-executor.0/18040:
#0: ffffffff8e072450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4aa/0x790 net/core/net_namespace.c:486
1 lock held by syz-executor.1/18044:
#0: ffffffff8e072450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4aa/0x790 net/core/net_namespace.c:486
1 lock held by syz-executor.5/18046:
#0: ffffffff8e072450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4aa/0x790 net/core/net_namespace.c:486
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc8-syzkaller-00127-gdbeed98d89ea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e5/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b4/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf70/0xfb0 kernel/hung_task.c:377
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1167 Comm: kworker/u4:5 Not tainted 6.2.0-rc8-syzkaller-00127-gdbeed98d89ea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:match_held_lock+0x72/0xb0
Code: ff 1f 00 00 48 c7 c2 80 90 eb 8f 48 29 d0 48 c1 f8 06 48 ba ab aa aa aa aa aa aa aa 48 0f af d0 bd 01 00 00 00 48 39 ca 74 02 <31> ed 89 e8 5b 5d c3 e8 d2 fa 8f f9 31 ed 85 c0 74 f0 83 3d 8d 48
RSP: 0018:ffffc90005be7980 EFLAGS: 00000087
RAX: 0000000000000002 RBX: ffff888020d3e220 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8cf25700 RDI: ffff888020d3e220
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff1ca4f0e
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246
R13: ffff888020d3d7c0 R14: 00000000ffffffff R15: ffffffff8cf25700
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001f07000 CR3: 000000000cc8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_is_held kernel/locking/lockdep.c:5409 [inline]
lock_is_held_type+0xa8/0x190 kernel/locking/lockdep.c:5711
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x8d/0x130 kernel/rcu/update.c:125
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x12a/0x630 kernel/locking/lockdep.c:5639
rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:325
rcu_read_lock include/linux/rcupdate.h:764 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xca/0x580 net/batman-adv/network-coding.c:719
process_one_work+0x8fa/0x1370 kernel/workqueue.c:2289
worker_thread+0xa63/0x1210 kernel/workqueue.c:2436
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308