bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10/1:b..l rcu: (detected by 0, t=10503 jiffies, g=9957, q=827 ncpus=2) task:kworker/0:1 state:R running task stack:24904 pid:10 tgid:10 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5872 Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 db 4f ae 10 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc900000f6ab8 EFLAGS: 00000206 RAX: cd8ada272ede6e00 RBX: 0000000000000000 RCX: cd8ada272ede6e00 RDX: 0000000000000000 RSI: ffffffff8d6f8956 RDI: ffffffff8b9efde0 RBP: ffffffff8172cdb5 R08: 0000000000000000 R09: ffffffff8172cdb5 R10: ffffc900000f6c78 R11: ffffffff81ab6930 R12: 0000000000000002 R13: ffffffff8dd3d220 R14: 0000000000000000 R15: 0000000000000246 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+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2906 discard_slab mm/slub.c:3301 [inline] __put_partials+0x146/0x170 mm/slub.c:3848 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3923 __slab_free+0x2b9/0x390 mm/slub.c:5882 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4946 [inline] slab_alloc_node mm/slub.c:5245 [inline] kmem_cache_alloc_noprof+0x367/0x6e0 mm/slub.c:5252 __kernfs_new_node+0xd7/0x7e0 fs/kernfs/dir.c:637 kernfs_new_node+0x102/0x210 fs/kernfs/dir.c:713 __kernfs_create_file+0x4b/0x2e0 fs/kernfs/file.c:1057 sysfs_add_file_mode_ns+0x238/0x300 fs/sysfs/file.c:313 create_files fs/sysfs/group.c:76 [inline] internal_create_group+0x66d/0x1110 fs/sysfs/group.c:183 internal_create_groups fs/sysfs/group.c:223 [inline] sysfs_create_groups+0x59/0x120 fs/sysfs/group.c:249 device_add_groups drivers/base/core.c:2836 [inline] device_add_attrs+0x1c4/0x5a0 drivers/base/core.c:2911 device_add+0x496/0xb50 drivers/base/core.c:3643 usb_new_device+0xa39/0x16f0 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5870 [inline] hub_event+0x2958/0x4a20 drivers/usb/core/hub.c:5952 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x436/0x7d0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 net_ratelimit: 19473 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) net_ratelimit: 20189 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:82:e1:5b:0f:31:41, vlan:0)