bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:03:ea:d5:15:c9, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5944/1:b..l rcu: (detected by 1, t=10503 jiffies, g=20337, q=689 ncpus=2) task:kworker/1:7 state:R running task stack:23432 pid:5944 tgid:5944 ppid:2 task_flags:0x4208060 flags:0x00004000 Workqueue: events_power_efficient gc_worker Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x116f/0x5de0 kernel/sched/core.c:6767 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__seqprop_spinlock_sequence include/linux/seqlock.h:227 [inline] RIP: 0010:nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:333 [inline] RIP: 0010:gc_worker+0x2d5/0x16e0 net/netfilter/nf_conntrack_core.c:1534 Code: 00 00 48 c7 c7 c8 f1 86 90 e8 47 7e 03 f8 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 15 a0 26 f8 58 48 85 db 0f 85 d4 0f 00 00 96 a4 26 f8 8b 1d c0 46 f2 06 41 89 dc 31 ff 41 83 e4 01 44 89 RSP: 0018:ffffc9000484fb60 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8994b639 RDX: ffff8880250fa440 RSI: ffffffff8994b648 RDI: 0000000000000007 RBP: ffffffff9afdbb4c R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888024c00000 R13: 0000000000040000 R14: dffffc0000000000 R15: 0000000000001770 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:03:ea:d5:15:c9, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:03:ea:d5:15:c9, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:03:ea:d5:15:c9, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:03:ea:d5:15:c9, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:6a:03:ea:d5:15:c9, vlan:0)