====================================== | [ 36.974080][ T333] br1: port 5(vx4001) entered blocking state | [ 36.974322][ T333] br1: port 5(vx4001) entered forwarding state | [ 37.300657][ T11] BUG: spinlock bad magic on CPU#0, kworker/u16:0/11 | [ 37.300962][ T11] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/u16:0/11, .owner_cpu: 0 [ 37.301571][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 37.301940][ T11] Workqueue: ipv6_addrconf addrconf_dad_work [ 37.302154][ T11] Call Trace: [ 37.302287][ T11] [ 37.302379][ T11] dump_stack_lvl (lib/dump_stack.c:122) [ 37.302558][ T11] do_raw_spin_unlock (kernel/locking/spinlock_debug.c:100 kernel/locking/spinlock_debug.c:141) [ 37.302729][ T11] _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 37.302898][ T11] __dev_xmit_skb (./include/net/sch_generic.h:226 ./include/net/sch_generic.h:217 net/core/dev.c:3879) [ 37.303066][ T11] ? __pfx___dev_xmit_skb (net/core/dev.c:3784) [ 37.303232][ T11] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:890 net/core/dev.c:4348) [ 37.303412][ T11] ? lock_acquire (kernel/locking/lockdep.c:5732) [ 37.303576][ T11] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:890 net/core/dev.c:4348) [ 37.303728][ T11] __dev_queue_xmit (net/core/dev.c:4389) [ 37.303891][ T11] ? __build_skb_around (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 net/core/skbuff.c:388 net/core/skbuff.c:445) [ 37.304054][ T11] ? __alloc_skb (net/core/skbuff.c:690) [ 37.304213][ T11] ? __pfx___alloc_skb (net/core/skbuff.c:647) [ 37.304375][ T11] ? __pfx___dev_queue_xmit (net/core/dev.c:4332) [ 37.304531][ T11] ? eth_header (net/ethernet/eth.c:100) [ 37.304698][ T11] ? arp_create (net/ipv4/arp.c:639) [ 37.304863][ T11] ? arp_send_dst (net/ipv4/arp.c:314 net/ipv4/arp.c:301) [ 37.305026][ T11] arp_solicit (net/ipv4/arp.c:392) [ 37.305187][ T11] ? __create_object (mm/kmemleak.c:751) [ 37.305345][ T11] ? __pfx_arp_solicit (net/ipv4/arp.c:334) [ 37.305510][ T11] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 52)) [ 37.305669][ T11] ? neigh_probe (net/core/neighbour.c:1076) [ 37.305842][ T11] neigh_probe (net/core/neighbour.c:1077) [ 37.305962][ T11] __neigh_event_send (net/core/neighbour.c:1244) [ 37.306130][ T11] neigh_resolve_output (net/core/neighbour.c:1549) [ 37.306288][ T11] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 kernel/softirq.c:387) [ 37.306450][ T11] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9)) [ 37.306610][ T11] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) [ 37.306776][ T11] ? 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:227) [ 37.306938][ T11] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 37.307058][ T11] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 37.307224][ T11] ? __ip_finish_output (./include/linux/skbuff.h:1666 ./include/linux/skbuff.h:4954 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) [ 37.307384][ T11] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 37.307506][ T11] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 37.307668][ T11] ? ip_local_out (net/ipv4/ip_output.c:128) [ 37.307830][ T11] iptunnel_xmit (net/ipv4/ip_tunnel_core.c:84 (discriminator 4)) [ 37.307992][ T11] ? vxlan_build_skb.isra.0 (drivers/net/vxlan/vxlan_core.c:2211) vxlan [ 37.308211][ T11] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2520) vxlan [ 37.308388][ T11] ? __pfx_vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2336) vxlan [ 37.308596][ T11] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 37.308763][ T11] ? usage_skip (kernel/locking/lockdep.c:2294 kernel/locking/lockdep.c:2262) [ 37.308934][ T11] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:890 net/core/dev.c:4348) [ 37.309097][ T11] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) [ 37.309255][ T11] ? vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2796) vxlan [ 37.309423][ T11] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2796) vxlan [ 37.309594][ T11] dev_hard_start_xmit (./include/linux/netdevice.h:4913 ./include/linux/netdevice.h:4922 net/core/dev.c:3580 net/core/dev.c:3596) [ 37.309769][ T11] ? validate_xmit_skb.constprop.0 (net/core/dev.c:3651) [ 37.309969][ T11] __dev_queue_xmit (net/core/dev.h:168 net/core/dev.c:4424) [ 37.310127][ T11] ? __lock_release (kernel/locking/lockdep.c:5435) [ 37.310295][ T11] ? ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) [ 37.310462][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 37.310625][ T11] ? 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:227) [ 37.310788][ T11] ? __pfx___dev_queue_xmit (net/core/dev.c:4332) [ 37.310949][ T11] ? mark_held_locks (kernel/locking/lockdep.c:4273) [ 37.311110][ T11] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 37.311317][ T11] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496) [ 37.311476][ T11] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) [ 37.311636][ T11] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 37.311793][ T11] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243) [ 37.311916][ T11] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230) [ 37.312078][ T11] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) [ 37.312247][ T11] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 37.312419][ T11] ? __lock_release (kernel/locking/lockdep.c:5435) [ 37.312577][ T11] ? icmp6_dst_alloc (net/ipv6/route.c:3295) [ 37.312740][ T11] NF_HOOK.constprop.0 (./include/linux/rcupdate.h:326 ./include/linux/rcupdate.h:838 ./include/linux/netfilter.h:238 ./include/linux/netfilter.h:312) [ 37.312908][ T11] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308) [ 37.313069][ T11] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3140) [ 37.313270][ T11] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 37.313469][ T11] ? icmp6_dst_alloc (net/ipv6/route.c:3295) [ 37.313636][ T11] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 kernel/softirq.c:387) [ 37.313802][ T11] mld_sendpack (net/ipv6/mcast.c:1822) [ 37.313964][ T11] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779) [ 37.314127][ T11] ipv6_mc_dad_complete (./include/linux/refcount.h:192 net/ipv6/mcast.c:2244) [ 37.314289][ T11] addrconf_dad_completed (net/ipv6/addrconf.c:4347) [ 37.314450][ T11] ? 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:227) [ 37.314612][ T11] ? __pfx_addrconf_dad_completed (net/ipv6/addrconf.c:4313) [ 37.314816][ T11] ? mark_held_locks (kernel/locking/lockdep.c:4273) [ 37.314978][ T11] ? addrconf_dad_work (net/ipv6/addrconf.c:4274) [ 37.315138][ T11] addrconf_dad_work (net/ipv6/addrconf.c:4274) [ 37.315299][ T11] ? __pfx_addrconf_dad_work (net/ipv6/addrconf.c:4184) [ 37.315458][ T11] ? process_one_work (kernel/workqueue.c:3207) [ 37.315623][ T11] ? lock_acquire (kernel/locking/lockdep.c:5732) [ 37.315783][ T11] ? process_one_work (kernel/workqueue.c:3207) [ 37.315941][ T11] process_one_work (kernel/workqueue.c:3231) [ 37.316106][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 37.316265][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3133) [ 37.316434][ T11] ? assign_work (kernel/workqueue.c:1202) [ 37.316600][ T11] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3390) [ 37.316762][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3339) [ 37.316926][ T11] kthread (kernel/kthread.c:389) [ 37.317047][ T11] ? __pfx_kthread (kernel/kthread.c:342) [ 37.317210][ T11] ret_from_fork (arch/x86/kernel/process.c:147) [ 37.317374][ T11] ? __pfx_kthread (kernel/kthread.c:342) Finger prints: do_raw_spin_unlock:_raw_spin_unlock:__dev_xmit_skb:__dev_queue_xmit:arp_solicit