====================================== | [ 16.664405][ T70] #3: ffffffffb4e01dc8 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch (net/core/dev.c:12109) | [ 16.664803][ T70] #4: ffffffffb4df0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain (kernel/notifier.c:380 kernel/notifier.c:368) | [ 16.665096][ T70] | [ 16.665096][ T70] stack backtrace: [ 16.665529][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.665709][ T70] Workqueue: netns cleanup_net [ 16.665864][ T70] Call Trace: [ 16.665975][ T70] [ 16.666053][ T70] dump_stack_lvl (lib/dump_stack.c:123) [ 16.666200][ T70] print_deadlock_bug (kernel/locking/lockdep.c:3040) [ 16.666350][ T70] validate_chain (kernel/locking/lockdep.c:3894) [ 16.666497][ T70] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) [ 16.666645][ T70] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 16.666789][ T70] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 16.666902][ T70] __lock_acquire (kernel/locking/lockdep.c:5226) [ 16.667055][ T70] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851) [ 16.667203][ T70] ? blocking_notifier_call_chain (kernel/notifier.c:380 kernel/notifier.c:368) [ 16.667402][ T70] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 16.667553][ T70] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37)) [ 16.667702][ T70] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 16.667856][ T70] ? blocking_notifier_call_chain (kernel/notifier.c:380 kernel/notifier.c:368) [ 16.668036][ T70] down_read (./arch/x86/include/asm/preempt.h:79 kernel/locking/rwsem.c:1246 kernel/locking/rwsem.c:1261 kernel/locking/rwsem.c:1526) [ 16.668150][ T70] ? blocking_notifier_call_chain (kernel/notifier.c:380 kernel/notifier.c:368) [ 16.668343][ T70] ? __pfx_down_read (kernel/locking/rwsem.c:1522) [ 16.668492][ T70] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) [ 16.668643][ T70] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 16.668789][ T70] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 16.668905][ T70] blocking_notifier_call_chain (kernel/notifier.c:380 kernel/notifier.c:368) [ 16.669051][ T70] netdev_lower_state_changed (net/core/dev.c:8709 (discriminator 11)) [ 16.669201][ T70] ? __pfx_netdev_lower_state_changed (net/core/dev.c:8709) [ 16.669383][ T70] ? __pfx_netdev_has_upper_dev (net/core/dev.c:7170) [ 16.669542][ T70] __bond_release_one (drivers/net/bonding/bond_main.c:1890 ./include/net/bonding.h:391 ./include/net/bonding.h:382 ./include/net/bonding.h:570 drivers/net/bonding/bond_main.c:2516) [ 16.669695][ T70] ? __lock_release (kernel/locking/lockdep.c:5525) [ 16.669838][ T70] ? __try_to_del_timer_sync (kernel/time/timer.c:1498) [ 16.669986][ T70] ? __pfx___bond_release_one (drivers/net/bonding/bond_main.c:2492) [ 16.670138][ T70] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 16.670277][ T70] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 16.670388][ T70] ? mark_held_locks (kernel/locking/lockdep.c:4321) [ 16.670530][ T70] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 16.670706][ T70] ? __try_to_del_timer_sync (kernel/time/timer.c:1498) [ 16.670849][ T70] ? __pfx___try_to_del_timer_sync (kernel/time/timer.c:1498) [ 16.671030][ T70] ? mark_held_locks (kernel/locking/lockdep.c:4321) [ 16.671253][ T70] bond_slave_netdev_event (drivers/net/bonding/bond_main.c:4034) [ 16.671395][ T70] ? ipmr_device_event (net/ipv4/ipmr.c:1781) [ 16.671537][ T70] notifier_call_chain (kernel/notifier.c:85 (discriminator 2)) [ 16.671680][ T70] blocking_notifier_call_chain (kernel/notifier.c:381 kernel/notifier.c:368) [ 16.671896][ T70] unregister_netdevice_many_notify (net/core/dev.c:11575) [ 16.672076][ T70] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11516) [ 16.672251][ T70] ? default_device_exit_batch (net/core/dev.c:12109) [ 16.672397][ T70] ? rtnl_is_locked (net/core/rtnetlink.c:163) [ 16.672619][ T70] ? unregister_netdevice_queue (net/core/dev.c:11501) [ 16.672799][ T70] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11500) [ 16.672973][ T70] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11500) [ 16.673228][ T70] default_device_exit_batch (net/core/dev.c:12123) [ 16.673370][ T70] ? __pfx_default_device_exit_batch (net/core/dev.c:12098) [ 16.673546][ T70] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:66) [ 16.673686][ T70] ? nexthop_net_exit_batch_rtnl (net/ipv4/nexthop.c:585 net/ipv4/nexthop.c:2158 net/ipv4/nexthop.c:2666 net/ipv4/nexthop.c:4010) Finger prints: