bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P37/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=131537, q=1208 ncpus=2)
task:khugepaged      state:R  running task     stack:21968 pid:37    tgid:37    ppid:2      task_flags:0x200040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0xf43/0x5890 kernel/sched/core.c:6764
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7086
 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:check_kcov_mode kernel/kcov.c:185 [inline]
RIP: 0010:write_comp_data+0x3c/0x90 kernel/kcov.c:246
Code: 8b 05 b0 0a 4a 7e a9 00 01 ff 00 74 1d f6 c4 01 74 67 a9 00 00 0f 00 75 60 a9 00 00 f0 00 75 59 8b 82 2c 16 00 00 85 c0 74 4f <8b> 82 08 16 00 00 83 f8 03 75 44 48 8b 82 10 16 00 00 8b 92 0c 16
RSP: 0018:ffffc90000ad78c8 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 0000000000000000 RCX: ffffffff8222493f
RDX: ffff888143ee5a00 RSI: 00000000000137fe RDI: 0000000000000006
RBP: dffffc0000000000 R08: 0000000000000006 R09: 00000000000137fe
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809a8a9210
R13: ffffc90000ad7a70 R14: 00000000000137fe R15: 0000000000000000
 __collapse_huge_page_copy_succeeded mm/khugepaged.c:725 [inline]
 __collapse_huge_page_copy mm/khugepaged.c:831 [inline]
 collapse_huge_page+0x1adf/0x3170 mm/khugepaged.c:1227
 hpage_collapse_scan_pmd+0xb06/0x11c0 mm/khugepaged.c:1434
 khugepaged_scan_mm_slot mm/khugepaged.c:2463 [inline]
 khugepaged_do_scan mm/khugepaged.c:2550 [inline]
 khugepaged+0x1161/0x1650 mm/khugepaged.c:2606
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
bridge0: received packet on veth0_to_bridge with own address as source address (addr:02:2d:4b:e9:1d:42, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:02:2d:4b:e9:1d:42, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 38343 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:02:2d:4b:e9:1d:42, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:02:2d:4b:e9:1d:42, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)