bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9461/1:b..l rcu: (detected by 0, t=10503 jiffies, g=41409, q=2057 ncpus=2) task:modprobe state:R running task stack:25416 pid:9461 tgid:9461 ppid:6153 task_flags:0x400000 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0xfee/0x60e0 kernel/sched/core.c:6907 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7234 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_release+0x6/0x320 kernel/locking/lockdep.c:5876 Code: 4c 24 18 4c 8b 54 24 10 44 8b 5c 24 0c eb 98 0f 1f 44 00 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 54 55 53 48 89 fb 48 83 ec 18 65 48 8b 2d ad c8 28 12 48 RSP: 0018:ffffc900064cf248 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffc900064cf838 RCX: ffffffff922ba801 RDX: 0000000000000000 RSI: ffffffff81b7adde RDI: ffffffff8e7e9220 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000007 R10: 0000000000000200 R11: 00000000000a8577 R12: ffffc900064cf318 R13: ffffc900064cf2c8 R14: ffffc900064cf838 R15: ffffc900064cf2fc rcu_lock_release include/linux/rcupdate.h:322 [inline] rcu_read_unlock include/linux/rcupdate.h:881 [inline] class_rcu_destructor include/linux/rcupdate.h:1193 [inline] unwind_next_frame+0x3c3/0x1ea0 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x162/0x1e0 mm/page_owner.c:165 __reset_page_owner+0x84/0x190 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+0x7e1/0x10d0 mm/page_alloc.c:2978 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x47/0xe0 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4501 [inline] slab_alloc_node mm/slub.c:4830 [inline] kmem_cache_alloc_noprof+0x241/0x6e0 mm/slub.c:4837 mt_alloc_one lib/maple_tree.c:174 [inline] mas_alloc_nodes+0x280/0x390 lib/maple_tree.c:1110 mas_preallocate+0x39c/0xf10 lib/maple_tree.c:5194 vma_iter_prealloc mm/vma.h:568 [inline] __split_vma+0x33d/0xd90 mm/vma.c:526 split_vma mm/vma.c:596 [inline] vma_modify+0x1121/0x2250 mm/vma.c:1680 vma_modify_flags+0x257/0x3d0 mm/vma.c:1700 mprotect_fixup+0x209/0xb70 mm/mprotect.c:756 do_mprotect_pkey+0x9e1/0xe70 mm/mprotect.c:930 __do_sys_mprotect mm/mprotect.c:951 [inline] __se_sys_mprotect mm/mprotect.c:948 [inline] __x64_sys_mprotect+0x78/0xc0 mm/mprotect.c:948 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f86361372c7 RSP: 002b:00007ffddc94be18 EFLAGS: 00000206 ORIG_RAX: 000000000000000a RAX: ffffffffffffffda RBX: 00007f863614b310 RCX: 00007f86361372c7 RDX: 0000000000000001 RSI: 0000000000001000 RDI: 000055da3f7ab000 RBP: 00007ffddc94c0e0 R08: 0000000000000000 R09: 00007f863605b04a R10: 00007f863614b310 R11: 0000000000000206 R12: 0000000000000000 R13: 000000ab1515e1c8 R14: 0000000000000000 R15: 00007f863614b310 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:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:de:fd:cb:3c:9c, 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:1b, 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:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:de:fd:cb:3c:9c, 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:1b, vlan:0)