bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5994/1:b..l rcu: (detected by 0, t=10503 jiffies, g=75709, q=643 ncpus=2) task:kworker/1:6 state:R running task stack:22856 pid:5994 tgid:5994 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: events send_dm_alert Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__rcu_read_unlock+0x6/0xe0 kernel/rcu/tree_plugin.h:431 Code: c1 03 38 c1 7c dc 48 89 df e8 26 bc 7e 00 eb d2 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 <41> 56 41 55 41 54 53 49 bf 00 00 00 00 00 fc ff df 65 48 8b 3c 25 RSP: 0018:ffffc900055c7368 EFLAGS: 00000282 RAX: b691a962be32a200 RBX: ffffffff908ee701 RCX: b691a962be32a200 RDX: 0000000000000003 RSI: ffffffff8d8f8695 RDI: ffffffff8bbf08e0 RBP: dffffc0000000000 R08: ffffc900055c7a00 R09: 0000000000000000 R10: ffffc900055c7498 R11: fffff52000ab8e95 R12: ffffc900055c7a10 R13: ffffc900055c0000 R14: ffffc900055c7448 R15: ffffffff81738c45 rcu_read_unlock include/linux/rcupdate.h:899 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0x19ae/0x2390 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:311 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2901 __slab_free+0x2e7/0x390 mm/slub.c:5970 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4978 [inline] slab_alloc_node mm/slub.c:5288 [inline] __do_kmalloc_node mm/slub.c:5649 [inline] __kmalloc_node_track_caller_noprof+0x519/0x800 mm/slub.c:5759 kmalloc_reserve+0x136/0x290 net/core/skbuff.c:608 __alloc_skb+0x27e/0x430 net/core/skbuff.c:690 alloc_skb include/linux/skbuff.h:1383 [inline] nlmsg_new include/net/netlink.h:1055 [inline] genlmsg_new include/net/genetlink.h:611 [inline] reset_per_cpu_data+0x31/0x1e0 net/core/drop_monitor.c:146 send_dm_alert+0x1f/0xf0 net/core/drop_monitor.c:197 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:02:a6:c4:91:94, vlan:0)