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 bridge_slave_0 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): P38/1:b..l rcu: (detected by 1, t=10502 jiffies, g=48453, q=971 ncpus=1) task:khugepaged state:R running task stack:28184 pid:38 tgid:38 ppid:2 task_flags:0x200040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6929 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256 irqentry_exit+0x36/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:copy_mc_enhanced_fast_string+0x6/0xf arch/x86/lib/copy_mc_64.S:130 Code: 89 ca e9 1d fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 89 f8 48 89 d1 a4 31 c0 e9 11 40 04 00 48 89 c8 e9 09 40 04 00 66 0f 1f 84 00 RSP: 0018:ffffc90000ae7878 EFLAGS: 00010246 RAX: ffff888036b9b000 RBX: 0000000000001000 RCX: 0000000000000400 RDX: 0000000000001000 RSI: ffff88806e911c00 RDI: ffff888036b9bc00 RBP: ffff888036b9b000 R08: 0000000000000000 R09: ffffed100dd223ff R10: ffff88806e911fff R11: 0000000000000000 R12: ffff88806e911000 R13: 000000000000019b R14: ffffc90000ae7a40 R15: ffff888000000000 copy_mc_to_kernel+0x47/0xc0 arch/x86/lib/copy_mc.c:75 copy_mc_user_highpage include/linux/highmem.h:343 [inline] __collapse_huge_page_copy mm/khugepaged.c:802 [inline] collapse_huge_page+0x163c/0x3670 mm/khugepaged.c:1212 hpage_collapse_scan_pmd+0xd61/0x1440 mm/khugepaged.c:1412 khugepaged_scan_mm_slot mm/khugepaged.c:2469 [inline] khugepaged_do_scan mm/khugepaged.c:2553 [inline] khugepaged+0x1228/0x16c0 mm/khugepaged.c:2609 kthread+0x3c2/0x780 kernel/kthread.c:463 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 net_ratelimit: 9016 callbacks suppressed 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:96:ce:d7:cf:1e:74, 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 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:96:ce:d7:cf:1e:74, 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 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:96:ce:d7:cf:1e:74, vlan:0) net_ratelimit: 8998 callbacks suppressed 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:96:ce:d7:cf:1e:74, 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 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:96:ce:d7:cf:1e:74, 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 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:96:ce:d7:cf:1e:74, vlan:0)