bridge0: received packet on veth0 with own address as source address (addr:aa:aa:aa:aa:aa:19, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P29/1:b..l
rcu: 	(detected by 0, t=10503 jiffies, g=20085, q=1115 ncpus=2)
task:kworker/1:1     state:R  running task     stack:25312 pid:29    tgid:29    ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_power_efficient gc_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5510 [inline]
 __schedule+0x17d9/0x56c0 kernel/sched/core.c:7234
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7556
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_acquire+0x221/0x350 kernel/locking/lockdep.c:5872
Code: ff ff ff e8 51 ed 30 0a f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 db 87 ca 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 80 f0 33 0a cc 48 8d 3d 28 ea b7
RSP: 0018:ffffc90000a57960 EFLAGS: 00000286
RAX: 3dcd364ab01f0000 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 000000002718c465 RSI: ffffffff8e4bb7d3 RDI: ffffffff8c4bbf80
RBP: ffffffff89f058f4 R08: ffffffff89f058f4 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb59c60 R12: 0000000000000002
R13: ffffffff8eb59c60 R14: 0000000000000000 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
 rcu_read_lock include/linux/rcupdate.h:840 [inline]
 gc_worker+0x298/0x1890 net/netfilter/nf_conntrack_core.c:1532
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
net_ratelimit: 7351 callbacks suppressed
bridge0: received packet on veth1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0 with own address as source address (addr:aa:aa:aa:aa:aa:19, vlan:0)
bridge0: received packet on veth0 with own address as source address (addr:aa:aa:aa:aa:aa:19, vlan:0)
bridge0: received packet on veth0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 7898 callbacks suppressed
bridge0: received packet on veth0 with own address as source address (addr:aa:aa:aa:aa:aa:19, vlan:0)
bridge0: received packet on veth1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0 with own address as source address (addr:aa:aa:aa:aa:aa:19, vlan:0)