====================================== | [ 38.422160][ T9] br1: port 4(veth2) entered blocking state | [ 38.422574][ T9] br1: port 4(veth2) entered forwarding state | [ 39.153427][ T51] BUG: spinlock bad magic on CPU#3, kworker/3:1/51 | [ 39.153714][ T51] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/3:1/51, .owner_cpu: 3 [ 39.154331][ T51] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 39.154691][ T51] Workqueue: mld mld_ifc_work [ 39.154892][ T51] Call Trace: [ 39.155023][ T51] [ 39.155110][ T51] dump_stack_lvl (lib/dump_stack.c:122) [ 39.155293][ T51] do_raw_spin_unlock (kernel/locking/spinlock_debug.c:100 kernel/locking/spinlock_debug.c:141) [ 39.155464][ T51] _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 39.155631][ T51] __dev_xmit_skb (./include/net/sch_generic.h:226 ./include/net/sch_generic.h:217 net/core/dev.c:3879) [ 39.155805][ T51] ? __pfx___dev_xmit_skb (net/core/dev.c:3784) [ 39.155980][ T51] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:890 net/core/dev.c:4348) [ 39.156153][ T51] ? lock_acquire (kernel/locking/lockdep.c:5732) [ 39.156318][ T51] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:890 net/core/dev.c:4348) [ 39.156485][ T51] __dev_queue_xmit (net/core/dev.c:4389) [ 39.156662][ T51] ? __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) [ 39.156856][ T51] ? __alloc_skb (net/core/skbuff.c:690) [ 39.157022][ T51] ? __pfx___alloc_skb (net/core/skbuff.c:647) [ 39.157195][ T51] ? __pfx___dev_queue_xmit (net/core/dev.c:4332) [ 39.157363][ T51] ? eth_header (net/ethernet/eth.c:100) [ 39.157530][ T51] ? arp_create (net/ipv4/arp.c:639) [ 39.157719][ T51] ? arp_send_dst (net/ipv4/arp.c:314 net/ipv4/arp.c:301) [ 39.157911][ T51] arp_solicit (net/ipv4/arp.c:392) [ 39.158113][ T51] ? __create_object (mm/kmemleak.c:751) [ 39.158313][ T51] ? __pfx_arp_solicit (net/ipv4/arp.c:334) [ 39.158492][ T51] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 52)) [ 39.158688][ T51] ? neigh_probe (net/core/neighbour.c:1076) [ 39.158870][ T51] neigh_probe (net/core/neighbour.c:1077) [ 39.159002][ T51] __neigh_event_send (net/core/neighbour.c:1244) [ 39.159199][ T51] neigh_resolve_output (net/core/neighbour.c:1549) [ 39.159381][ T51] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 kernel/softirq.c:387) [ 39.159586][ T51] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9)) [ 39.159782][ T51] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) [ 39.159981][ T51] ? 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) [ 39.160158][ T51] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [ 39.160292][ T51] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 39.160525][ T51] ? __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) [ 39.160737][ T51] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 39.160888][ T51] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 39.161076][ T51] ? ip_local_out (net/ipv4/ip_output.c:128) [ 39.161265][ T51] iptunnel_xmit (net/ipv4/ip_tunnel_core.c:84 (discriminator 4)) [ 39.161440][ T51] ? vxlan_build_skb.isra.0 (drivers/net/vxlan/vxlan_core.c:2211) vxlan [ 39.161696][ T51] vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2520) vxlan [ 39.161888][ T51] ? __pfx_vxlan_xmit_one (drivers/net/vxlan/vxlan_core.c:2336) vxlan [ 39.162106][ T51] ? __lock_acquire (kernel/locking/lockdep.c:5142) [ 39.162286][ T51] ? usage_skip (kernel/locking/lockdep.c:2294 kernel/locking/lockdep.c:2262) [ 39.162453][ T51] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:890 net/core/dev.c:4348) [ 39.162620][ T51] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) [ 39.162783][ T51] ? vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2796) vxlan [ 39.162964][ T51] vxlan_xmit (drivers/net/vxlan/vxlan_core.c:2796) vxlan [ 39.163175][ T51] dev_hard_start_xmit (./include/linux/netdevice.h:4913 ./include/linux/netdevice.h:4922 net/core/dev.c:3580 net/core/dev.c:3596) [ 39.163350][ T51] ? validate_xmit_skb.constprop.0 (net/core/dev.c:3651) [ 39.163582][ T51] __dev_queue_xmit (net/core/dev.h:168 net/core/dev.c:4424) [ 39.163747][ T51] ? __lock_release (kernel/locking/lockdep.c:5435) [ 39.163943][ T51] ? ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) [ 39.164124][ T51] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 39.164317][ T51] ? 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) [ 39.164520][ T51] ? __pfx___dev_queue_xmit (net/core/dev.c:4332) [ 39.164705][ T51] ? mark_held_locks (kernel/locking/lockdep.c:4273) [ 39.164877][ T51] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 39.165086][ T51] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496) [ 39.165256][ T51] ip6_finish_output2 (./include/net/neighbour.h:540 net/ipv6/ip6_output.c:137) [ 39.165449][ T51] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) [ 39.165622][ T51] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243) [ 39.165766][ T51] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230) [ 39.165943][ T51] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) [ 39.166150][ T51] ? find_held_lock (kernel/locking/lockdep.c:5249) [ 39.166320][ T51] ? __lock_release (kernel/locking/lockdep.c:5435) [ 39.166538][ T51] ? icmp6_dst_alloc (net/ipv6/route.c:3295) [ 39.166721][ T51] NF_HOOK.constprop.0 (./include/linux/rcupdate.h:326 ./include/linux/rcupdate.h:838 ./include/linux/netfilter.h:238 ./include/linux/netfilter.h:312) [ 39.166934][ T51] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308) [ 39.167151][ T51] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3140) [ 39.167380][ T51] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 39.167654][ T51] ? icmp6_dst_alloc (net/ipv6/route.c:3295) [ 39.167849][ T51] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 kernel/softirq.c:387) [ 39.168037][ T51] mld_sendpack (net/ipv6/mcast.c:1822) [ 39.168242][ T51] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779) [ 39.168448][ T51] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11)) [ 39.168639][ T51] mld_ifc_work (net/ipv6/mcast.c:2652) [ 39.168833][ T51] process_one_work (kernel/workqueue.c:3231) [ 39.169046][ T51] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) [ 39.169225][ T51] ? __pfx_process_one_work (kernel/workqueue.c:3133) [ 39.169434][ T51] ? assign_work (kernel/workqueue.c:1202) [ 39.169642][ T51] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3390) [ 39.169859][ T51] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) [ 39.170106][ T51] ? __pfx_worker_thread (kernel/workqueue.c:3339) [ 39.170280][ T51] ? __pfx_worker_thread (kernel/workqueue.c:3339) [ 39.170508][ T51] kthread (kernel/kthread.c:389) [ 39.170654][ T51] ? __pfx_kthread (kernel/kthread.c:342) [ 39.170833][ T51] ret_from_fork (arch/x86/kernel/process.c:147) [ 39.171025][ T51] ? __pfx_kthread (kernel/kthread.c:342) Finger prints: do_raw_spin_unlock:_raw_spin_unlock:__dev_xmit_skb:__dev_queue_xmit:arp_solicit