bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10337/1:b..l rcu: (detected by 0, t=10503 jiffies, g=52493, q=1702 ncpus=2) task:kworker/u10:11 state:R running task stack:24200 pid:10337 tgid:10337 ppid:2 task_flags:0x24248060 flags:0x00080000 Workqueue: writeback wb_workfn (flush-8:0) 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:697 RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5872 Code: dd 08 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 a2 fe e9 0e 0f 82 74 02 00 00 8b 35 fa 2e ea 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 b9 dc 08 12 0f 85 c7 02 00 00 48 83 c4 RSP: 0018:ffffc9000ac56cb8 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffffffff8e3c45e0 RCX: 00000000c6d1fd38 RDX: 0000000000000000 RSI: ffffffff8da03d53 RDI: ffffffff8bf078c0 RBP: 0000000000000002 R08: 55ac4b6f817a498d R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] class_rcu_constructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x84/0x1a0 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+0x7df/0x1160 mm/page_alloc.c:2901 discard_slab mm/slub.c:3330 [inline] __put_partials+0x130/0x170 mm/slub.c:3876 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 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] kmem_cache_alloc_noprof+0x250/0x6e0 mm/slub.c:5295 ext4_init_io_end+0x24/0x170 fs/ext4/page-io.c:310 ext4_do_writepages+0x9e7/0x3cf0 fs/ext4/inode.c:2872 ext4_writepages+0x37a/0x7d0 fs/ext4/inode.c:3025 do_writepages+0x27a/0x600 mm/page-writeback.c:2604 __writeback_single_inode+0x160/0xfb0 fs/fs-writeback.c:1719 writeback_sb_inodes+0x60d/0xfa0 fs/fs-writeback.c:2015 __writeback_inodes_wb+0xf8/0x2d0 fs/fs-writeback.c:2086 wb_writeback+0x7f3/0xb70 fs/fs-writeback.c:2197 wb_check_old_data_flush fs/fs-writeback.c:2301 [inline] wb_do_writeback fs/fs-writeback.c:2354 [inline] wb_workfn+0x8ca/0xbe0 fs/fs-writeback.c:2382 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427 kthread+0x3c5/0x780 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: 11168 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:27:8a:9c:b6:c4, vlan:0)