ICMPv6: NA: aa:aa:aa:aa:aa:1e advertised our address fe80::a8aa:aaff:feaa:aa1e on bridge0! rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4991/1:b..l rcu: (detected by 0, t=10503 jiffies, g=58313, q=1413 ncpus=2) task:udevd state:R running task stack:22808 pid:4991 tgid:4991 ppid:1 task_flags:0x400140 flags:0x00080800 Call Trace: context_switch kernel/sched/core.c:5510 [inline] __schedule+0x17d9/0x56c0 kernel/sched/core.c:7234 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7556 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:rcu_lock_acquire include/linux/rcupdate.h:300 [inline] RIP: 0010:rcu_read_lock include/linux/rcupdate.h:840 [inline] RIP: 0010:class_rcu_constructor include/linux/rcupdate.h:1183 [inline] RIP: 0010:unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495 Code: 68 e8 08 10 35 00 4c 8d 2d 00 00 00 00 48 c7 c7 20 9c b5 8e 31 f6 31 d2 b9 02 00 00 00 45 31 c0 45 31 c9 41 55 e8 a4 30 2b 00 <48> 83 c4 08 e8 4b a8 57 0a 85 c0 74 3a e8 e2 5a 34 00 84 c0 75 31 RSP: 0018:ffffc90003247338 EFLAGS: 00000286 RAX: 6370cb6e292b0500 RBX: ffffffff823de362 RCX: 0000000000000046 RDX: 00000000fed2a118 RSI: ffffffff8e4aed5a RDI: ffffffff8c4bd280 RBP: 1ffff92000648e84 R08: ffffffff8176f21f R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8eb59c20 R12: dffffc0000000000 R13: ffffffff8176f21f R14: ffffc900032473e8 R15: 1ffff92000648e7d arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1406 [inline] __free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950 __slab_free+0x274/0x2c0 mm/slub.c:5767 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:406 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5362 [inline] __kmalloc_noprof+0x375/0x720 mm/slub.c:5387 _kmalloc_noprof include/linux/slab.h:973 [inline] tomoyo_realpath_from_path+0xef/0x640 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x283/0x560 security/tomoyo/file.c:827 security_inode_getattr+0x12b/0x310 security/security.c:1895 vfs_getattr+0x23/0x70 fs/stat.c:259 vfs_statx_path+0x2b/0x230 fs/stat.c:299 vfs_statx+0x12e/0x200 fs/stat.c:356 vfs_fstatat+0x11b/0x170 fs/stat.c:373 __do_sys_newfstatat fs/stat.c:538 [inline] __se_sys_newfstatat fs/stat.c:532 [inline] __x64_sys_newfstatat+0x151/0x200 fs/stat.c:532 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdf1a511b0a RSP: 002b:00007ffee474a1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000558cf244b410 RCX: 00007fdf1a511b0a RDX: 00007ffee474a1f0 RSI: 0000558cf24392a8 RDI: 00000000ffffff9c RBP: 0000558d20062148 R08: 00063478c1c69200 R09: 3fffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee474a1f0 R14: 0000000000000000 R15: 00063478c1c69200 net_ratelimit: 33014 callbacks suppressed ICMPv6: NA: aa:aa:aa:aa:aa:1e advertised our address fe80::a8aa:aaff:feaa:aa1e on bridge0! bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1e, vlan:0) ICMPv6: NA: aa:aa:aa:aa:aa:1e advertised our address fe80::a8aa:aaff:feaa:aa1e on bridge0! bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1e, vlan:0) ICMPv6: NA: aa:aa:aa:aa:aa:1e advertised our address fe80::a8aa:aaff:feaa:aa1e on bridge0! net_ratelimit: 42209 callbacks suppressed ICMPv6: NA: aa:aa:aa:aa:aa:1e advertised our address fe80::a8aa:aaff:feaa:aa1e on bridge0! bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1e, vlan:0) ICMPv6: NA: aa:aa:aa:aa:aa:1e advertised our address fe80::a8aa:aaff:feaa:aa1e on bridge0! bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1e, vlan:0) ICMPv6: NA: aa:aa:aa:aa:aa:1e advertised our address fe80::a8aa:aaff:feaa:aa1e on bridge0!