bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9379/1:b..l rcu: (detected by 1, t=10503 jiffies, g=41017, q=1422 ncpus=2) task:udevd state:R running task stack:27144 pid:9379 tgid:9379 ppid:5198 task_flags:0x40014c flags:0x00080001 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 00 ea 0e 0f 82 74 02 00 00 8b 35 fa 30 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:ffffc9000b3ff700 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffffffff8e3c45e0 RCX: 000000008568ad9e RDX: 0000000000000000 RSI: ffffffff8da03cd1 RDI: ffffffff8bf07940 RBP: 0000000000000002 R08: 533472ab17531c98 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 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56 kasan_save_track+0x14/0x30 mm/kasan/common.c:77 poison_kmalloc_redzone mm/kasan/common.c:400 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:417 kmalloc_noprof include/linux/slab.h:957 [inline] slab_free_hook mm/slub.c:2495 [inline] slab_free mm/slub.c:6642 [inline] kmem_cache_free+0x147/0x6c0 mm/slub.c:6752 exit_mmap+0x50a/0xb90 mm/mmap.c:1305 __mmput+0x12a/0x410 kernel/fork.c:1133 mmput+0x62/0x70 kernel/fork.c:1156 exit_mm kernel/exit.c:582 [inline] do_exit+0x7c7/0x2bf0 kernel/exit.c:954 do_group_exit+0xd3/0x2a0 kernel/exit.c:1107 __do_sys_exit_group kernel/exit.c:1118 [inline] __se_sys_exit_group kernel/exit.c:1116 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1116 x64_sys_call+0x150b/0x1730 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb1be0f16c5 RSP: 002b:00007ffea0c0cb88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00005648637c5340 RCX: 00007fb1be0f16c5 RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000 RBP: 00005648637b1910 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffea0c0cbd0 R14: 0000000000000000 R15: 0000000000000000 bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a6:fd:f8:c1:69:5b, vlan:0)