bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:27:52:27:e1:f4, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P26985/1:b..l rcu: (detected by 0, t=10502 jiffies, g=153577, q=3299 ncpus=2) task:modprobe state:R running task stack:24712 pid:26985 tgid:26985 ppid:26975 task_flags:0x400000 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5401 [inline] __schedule+0x116a/0x5de0 kernel/sched/core.c:6790 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7113 irqentry_exit+0x36/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:121 [inline] RIP: 0010:lock_release+0x60/0x2f0 kernel/locking/lockdep.c:5884 Code: 87 38 02 00 00 89 c0 48 0f a3 05 db 91 11 0f 0f 82 b1 01 00 00 8b 3d a3 c3 11 0f 85 ff 0f 84 25 01 00 00 65 8b 05 38 30 38 12 <85> c0 0f 85 16 01 00 00 65 4c 8b 35 78 ee 37 12 41 8b b6 ec 0a 00 RSP: 0018:ffffc9000ae16538 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff8e5c4d00 RCX: ffffc9000ae18001 RDX: 0000000000000000 RSI: ffffffff8c1578a0 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 00000000000a7cfe R12: ffffffff816a9ac4 R13: ffffc9000ae165f0 R14: ffffc9000ae16d18 R15: ffffc9000ae16624 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x3f9/0x20a0 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:47 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:548 __call_rcu_common.constprop.0+0xa5/0xa10 kernel/rcu/tree.c:3094 mas_topiary_node lib/maple_tree.c:2521 [inline] mas_topiary_replace+0x1724/0x3520 lib/maple_tree.c:2628 mas_wmb_replace lib/maple_tree.c:2645 [inline] mas_split+0xb39/0x11e0 lib/maple_tree.c:3384 mas_commit_b_node.isra.0+0x76/0xb0 lib/maple_tree.c:3404 mas_wr_bnode+0x13c/0x1c0 lib/maple_tree.c:4073 mas_wr_store_entry+0xefa/0x2550 lib/maple_tree.c:4105 mas_store_prealloc+0x771/0x1680 lib/maple_tree.c:5506 vma_iter_store_new mm/vma.h:509 [inline] vma_complete+0x971/0xe80 mm/vma.c:351 __split_vma+0xc13/0x1070 mm/vma.c:565 vms_gather_munmap_vmas+0x392/0x1310 mm/vma.c:1375 __mmap_prepare mm/vma.c:2351 [inline] __mmap_region+0x3c7/0x25e0 mm/vma.c:2607 mmap_region+0x1ab/0x3f0 mm/vma.c:2692 do_mmap+0xa3e/0x1210 mm/mmap.c:561 vm_mmap_pgoff+0x281/0x450 mm/util.c:579 ksys_mmap_pgoff+0x32c/0x5c0 mm/mmap.c:607 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f20e2f0a242 RSP: 002b:00007ffc386281c8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f20e2c20000 RCX: 00007f20e2f0a242 RDX: 0000000000000003 RSI: 0000000000002000 RDI: 00007f20e2c20000 RBP: 0000000000000812 R08: 0000000000000000 R09: 000000000000d000 R10: 0000000000000812 R11: 0000000000000206 R12: 00007ffc38628288 R13: 00007f20e2edf580 R14: 00007ffc38628640 R15: 00000fff870c503c net_ratelimit: 8211 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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:fa:27:52:27:e1:f4, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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:fa:27:52:27:e1:f4, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 8908 callbacks suppressed 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:fa:27:52:27:e1:f4, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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:fa:27:52:27:e1:f4, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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:fa:27:52:27:e1:f4, vlan:0)