bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P18815/1:b..l rcu: (detected by 0, t=10503 jiffies, g=140045, q=2954 ncpus=2) task:kworker/1:8 state:R running task stack:26912 pid:18815 tgid:18815 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: events ovs_dp_masks_rebalance Call Trace: context_switch kernel/sched/core.c:5298 [inline] __schedule+0x15dd/0x52d0 kernel/sched/core.c:6911 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7238 irqentry_exit+0x599/0x620 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:unwind_next_frame+0x4a5/0x23c0 arch/x86/kernel/unwind_orc.c:520 Code: e0 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 66 18 00 00 4c 89 e8 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 79 18 00 00 41 0f b6 44 24 01 <83> e0 07 0f 84 66 15 00 00 83 f8 01 4c 8b 7c 24 50 48 bd 00 00 00 RSP: 0018:ffffc90003337418 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffffffff902a044c RCX: ffffffff902a0450 RDX: ffffffff90a62058 RSI: ffffffff90a62028 RDI: ffffffff8c27c8a0 RBP: dffffc0000000000 R08: 0000000000000009 R09: ffffffff8e75e5e0 R10: ffffc90003337548 R11: fffff52000666eb5 R12: ffffffff90a6205c R13: ffffffff90a6205d R14: ffffc90003337548 R15: ffffffff902a044c __unwind_start+0x5b8/0x760 arch/x86/kernel/unwind_orc.c:773 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xe3/0x150 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1433 [inline] __free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978 __slab_free+0x263/0x2b0 mm/slub.c:5573 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:406 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5260 [inline] __kmalloc_noprof+0x35c/0x760 mm/slub.c:5272 kmalloc_noprof include/linux/slab.h:954 [inline] ovs_flow_masks_rebalance+0xf9/0xc30 net/openvswitch/flow_table.c:1112 ovs_dp_masks_rebalance+0x56/0xe0 net/openvswitch/datapath.c:2562 process_one_work kernel/workqueue.c:3276 [inline] process_scheduled_works+0xb6e/0x18c0 kernel/workqueue.c:3359 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3440 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 net_ratelimit: 18062 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) net_ratelimit: 19598 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:b6:43:a3:b5:69:38, vlan:0)