bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:8c:87:24:d2:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:8c:87:24:d2:b6, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1):
 P5921/1:b..l
rcu: 	(detected by 1, t=10505 jiffies, g=338133, q=1246 ncpus=2)
task:kworker/1:6     state:R
  running task     stack:24248 pid:5921  tgid:5921  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_power_efficient gc_worker

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x17b4/0x5680 kernel/sched/core.c:7183
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7507
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline]
 irqentry_exit+0x14f/0x730 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:seqcount_lockdep_reader_access+0xed/0x100 include/linux/seqlock.h:76
Code: 00 75 11 e8 15 e6 f8 f7 4d 85 f6 75 16 e8 0b e6 f8 f7 eb 15 e8 04 e6 f8 f7 e8 3f 9d e6 01 4d 85 f6 74 ea e8 f5 e5 f8 f7 fb 5b <41> 5e c3 cc cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90
RSP: 0018:ffffc900047b7970 EFLAGS: 00000293
RAX: ffffffff89cc77fb RBX: 0000000000000001 RCX: ffff88802dd23d80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900047b7ad0 R08: ffffffff903215b7 R09: 1ffffffff20642b6
R10: dffffc0000000000 R11: fffffbfff20642b7 R12: dffffc0000000000
R13: ffffffff9a9c4fa0 R14: 0000000000000200 R15: 00000000000054bb
 nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:343 [inline]
 gc_worker+0x304/0x1290 net/netfilter/nf_conntrack_core.c:1545
 process_one_work kernel/workqueue.c:3288 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3371
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3452
 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: 15902 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:8c:87:24:d2:b6, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:8c:87:24:d2:b6, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:76:8c:87:24:d2:b6, vlan:0)