[ 31.012777][ T276] eth3: renamed from tmp [ 32.685784][ T284] eth2: renamed from tmp [ 34.090273][ T290] ip (290) used greatest stack depth: 23472 bytes left [ 35.055032][ T295] eth0: renamed from tmp [ 35.759635][ T298] br0: port 1(eth0) entered blocking state [ 35.760040][ T298] br0: port 1(eth0) entered disabled state [ 35.760290][ T298] eth0: entered allmulticast mode [ 35.761525][ T298] eth0: entered promiscuous mode [ 35.763032][ T298] br0: port 1(eth0) entered blocking state [ 35.763432][ T298] br0: port 1(eth0) entered forwarding state [ 36.719770][ T302] eth1: renamed from tmp [ 37.429195][ T305] br0: port 2(eth1) entered blocking state [ 37.429488][ T305] br0: port 2(eth1) entered disabled state [ 37.429705][ T305] eth1: entered allmulticast mode [ 37.430835][ T305] eth1: entered promiscuous mode [ 37.431787][ T305] br0: port 2(eth1) entered blocking state [ 37.431985][ T305] br0: port 2(eth1) entered forwarding state [ 37.671637][ C3] [ 37.671827][ C3] ======================================================== [ 37.672078][ C3] WARNING: possible irq lock inversion dependency detected [ 37.672323][ C3] 6.9.0-rc1-virtme #1 Not tainted [ 37.672488][ C3] -------------------------------------------------------- [ 37.672731][ C3] ping6/306 just changed the state of lock: [ 37.672934][ C3] ffff88800639bd80 (&ndev->lock){++.-}-{2:2}, at: ipv6_get_lladdr+0xa9/0x3e0 [ 37.673228][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 37.673472][ C3] (&p->alloc_lock){+.+.}-{2:2} [ 37.673477][ C3] [ 37.673477][ C3] [ 37.673477][ C3] and interrupts could create inverse lock ordering between them. [ 37.673477][ C3] [ 37.674079][ C3] [ 37.674079][ C3] other info that might help us debug this: [ 37.674321][ C3] Possible interrupt unsafe locking scenario: [ 37.674321][ C3] [ 37.674565][ C3] CPU0 CPU1 [ 37.674728][ C3] ---- ---- [ 37.674893][ C3] lock(&p->alloc_lock); [ 37.675018][ C3] local_irq_disable(); [ 37.675218][ C3] lock(&ndev->lock); [ 37.675421][ C3] lock(&p->alloc_lock); [ 37.675634][ C3] [ 37.675757][ C3] lock(&ndev->lock); [ 37.675881][ C3] [ 37.675881][ C3] *** DEADLOCK *** [ 37.675881][ C3] [ 37.676128][ C3] 6 locks held by ping6/306: [ 37.676290][ C3] #0: ffff888005c03718 (sk_lock-AF_INET6){+.+.}-{0:0}, at: rawv6_sendmsg+0xd17/0x17d0 [ 37.676582][ C3] #1: ffffffff86166360 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x32b/0xf60 [ 37.676875][ C3] #2: ffffffff86166360 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1f8/0x670 [ 37.677164][ C3] #3: ffffffff86166360 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_internal+0x84/0x330 [ 37.677493][ C3] #4: ffffffff86166360 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x32b/0xf60 [ 37.677781][ C3] #5: ffffffff86166360 (rcu_read_lock){....}-{1:2}, at: ipv6_get_lladdr+0x39/0x3e0 [ 37.678070][ C3] [ 37.678070][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 37.678352][ C3] -> (&p->alloc_lock){+.+.}-{2:2} { [ 37.678522][ C3] HARDIRQ-ON-W at: [ 37.678648][ C3] __lock_acquire+0x797/0x1570 [ 37.678859][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.679064][ C3] _raw_spin_lock+0x30/0x40 [ 37.679274][ C3] set_mems_allowed+0x1d/0x210 [ 37.679485][ C3] kernel_init_freeable+0x72/0x310 [ 37.679705][ C3] kernel_init+0x20/0x200 [ 37.679919][ C3] ret_from_fork+0x31/0x70 [ 37.680127][ C3] ret_from_fork_asm+0x1a/0x30 [ 37.680334][ C3] SOFTIRQ-ON-W at: [ 37.680458][ C3] __lock_acquire+0x797/0x1570 [ 37.680667][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.680874][ C3] _raw_spin_lock+0x30/0x40 [ 37.681081][ C3] set_mems_allowed+0x1d/0x210 [ 37.681286][ C3] kernel_init_freeable+0x72/0x310 [ 37.681492][ C3] kernel_init+0x20/0x200 [ 37.681698][ C3] ret_from_fork+0x31/0x70 [ 37.681906][ C3] ret_from_fork_asm+0x1a/0x30 [ 37.682110][ C3] INITIAL USE at: [ 37.682232][ C3] __lock_acquire+0x797/0x1570 [ 37.682439][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.682644][ C3] _raw_spin_lock+0x30/0x40 [ 37.682849][ C3] set_mems_allowed+0x1d/0x210 [ 37.683057][ C3] kernel_init_freeable+0x72/0x310 [ 37.683264][ C3] kernel_init+0x20/0x200 [ 37.683470][ C3] ret_from_fork+0x31/0x70 [ 37.683676][ C3] ret_from_fork_asm+0x1a/0x30 [ 37.683884][ C3] } [ 37.683969][ C3] ... key at: [] __key.388+0x0/0x40 [ 37.684217][ C3] ... acquired at: [ 37.684342][ C3] __lock_acquire+0xaf0/0x1570 [ 37.684510][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.684674][ C3] _raw_spin_lock+0x30/0x40 [ 37.684837][ C3] __get_task_comm+0x27/0x70 [ 37.685001][ C3] ref_tracker_alloc+0x2ee/0x490 [ 37.685167][ C3] netdev_get_by_index+0x5e/0x80 [ 37.685331][ C3] fib6_nh_init+0x3d8/0x1580 [ 37.685496][ C3] ip6_route_info_create+0xf18/0x17d0 [ 37.685662][ C3] addrconf_f6i_alloc+0x265/0x560 [ 37.685826][ C3] __ipv6_dev_ac_inc+0x25f/0xb10 [ 37.686104][ C3] addrconf_join_anycast+0x1c0/0x220 [ 37.686268][ C3] __ipv6_ifa_notify+0x6b3/0xaf0 [ 37.686431][ C3] addrconf_dad_completed+0x12b/0xe20 [ 37.686594][ C3] addrconf_dad_begin+0x310/0x670 [ 37.686863][ C3] addrconf_dad_work+0x10b/0xab0 [ 37.687028][ C3] process_one_work+0xe2c/0x1730 [ 37.687191][ C3] worker_thread+0x587/0xd30 [ 37.687354][ C3] kthread+0x28a/0x350 [ 37.687478][ C3] ret_from_fork+0x31/0x70 [ 37.687750][ C3] ret_from_fork_asm+0x1a/0x30 [ 37.687913][ C3] [ 37.687996][ C3] -> (&ndev->lock){++.-}-{2:2} { [ 37.688163][ C3] HARDIRQ-ON-W at: [ 37.688287][ C3] __lock_acquire+0x797/0x1570 [ 37.688605][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.688810][ C3] _raw_write_lock_bh+0x38/0x50 [ 37.689017][ C3] addrconf_permanent_addr+0x6e/0x670 [ 37.689224][ C3] addrconf_notify+0x749/0xd60 [ 37.689430][ C3] notifier_call_chain+0xcd/0x150 [ 37.689635][ C3] __dev_notify_flags+0xe6/0x250 [ 37.689852][ C3] dev_change_flags+0xec/0x160 [ 37.690166][ C3] do_setlink+0x7d6/0x21e0 [ 37.690371][ C3] __rtnl_newlink+0xaa7/0xd80 [ 37.690576][ C3] rtnl_newlink+0x63/0xa0 [ 37.690888][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 37.691094][ C3] netlink_rcv_skb+0x130/0x360 [ 37.691298][ C3] netlink_unicast+0x449/0x710 [ 37.691615][ C3] netlink_sendmsg+0x723/0xbe0 [ 37.691822][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 37.692029][ C3] ___sys_sendmsg+0xee/0x170 [ 37.692235][ C3] __sys_sendmsg+0xcd/0x170 [ 37.692549][ C3] do_syscall_64+0xc6/0x1e0 [ 37.692754][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 37.693004][ C3] HARDIRQ-ON-R at: [ 37.693235][ C3] __lock_acquire+0x797/0x1570 [ 37.693442][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.693649][ C3] _raw_read_lock_bh+0x44/0x80 [ 37.693857][ C3] inet6_fill_ifla6_attrs+0x516/0x740 [ 37.694169][ C3] inet6_fill_link_af+0x5e/0xe0 [ 37.694372][ C3] rtnl_fill_ifinfo+0x1615/0x2a90 [ 37.694579][ C3] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 37.694891][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 37.695136][ C3] rtmsg_ifinfo+0x5b/0xa0 [ 37.695339][ C3] register_netdevice+0x1177/0x1690 [ 37.695650][ C3] register_netdev+0x20/0x40 [ 37.695853][ C3] vti6_init_net+0x25d/0x380 [ 37.696064][ C3] ops_init+0x9b/0x560 [ 37.696231][ C3] register_pernet_operations+0x2db/0x710 [ 37.696585][ C3] register_pernet_device+0x2a/0x60 [ 37.696788][ C3] vti6_tunnel_init+0x18/0x110 [ 37.696993][ C3] do_one_initcall+0x8d/0x1e0 [ 37.697312][ C3] do_initcalls+0x1b2/0x3e0 [ 37.697521][ C3] kernel_init_freeable+0x232/0x310 [ 37.697726][ C3] kernel_init+0x20/0x200 [ 37.697930][ C3] ret_from_fork+0x31/0x70 [ 37.698241][ C3] ret_from_fork_asm+0x1a/0x30 [ 37.698445][ C3] IN-SOFTIRQ-R at: [ 37.698570][ C3] __lock_acquire+0x797/0x1570 [ 37.698883][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.699090][ C3] _raw_read_lock_bh+0x44/0x80 [ 37.699295][ C3] ipv6_get_lladdr+0xa9/0x3e0 [ 37.699504][ C3] ndisc_send_ns+0xe7/0x100 [ 37.699833][ C3] ndisc_solicit+0x2ae/0x4d0 [ 37.700038][ C3] neigh_probe+0xaa/0xf0 [ 37.700242][ C3] __neigh_event_send+0x7af/0xfe0 [ 37.700557][ C3] neigh_resolve_output+0x470/0x7c0 [ 37.700764][ C3] ip6_finish_output2+0x512/0xf60 [ 37.700969][ C3] ip6_finish_output+0x553/0xdf0 [ 37.701172][ C3] ip6_output+0x1f3/0x770 [ 37.701376][ C3] ip6_forward+0xf29/0x2980 [ 37.701579][ C3] ipv6_rcv+0x626/0x810 [ 37.701782][ C3] __netif_receive_skb_one_core+0x118/0x1b0 [ 37.702142][ C3] netif_receive_skb_internal+0xb0/0x330 [ 37.702386][ C3] netif_receive_skb+0x1b/0x30 [ 37.702591][ C3] br_handle_frame_finish+0xbef/0x1ce0 [ 37.702905][ C3] br_handle_frame+0x60d/0xd60 [ 37.703109][ C3] __netif_receive_skb_core.constprop.0+0x759/0x2d20 [ 37.703356][ C3] __netif_receive_skb_one_core+0xaf/0x1b0 [ 37.703712][ C3] process_backlog+0x103/0x670 [ 37.703916][ C3] __napi_poll.constprop.0+0xa2/0x460 [ 37.704124][ C3] net_rx_action+0x49f/0xc00 [ 37.704437][ C3] __do_softirq+0x1f8/0x5df [ 37.704644][ C3] do_softirq+0x4d/0xa0 [ 37.704848][ C3] __local_bh_enable_ip+0xf6/0x120 [ 37.705053][ C3] __neigh_event_send+0x2e4/0xfe0 [ 37.705364][ C3] neigh_resolve_output+0x470/0x7c0 [ 37.705567][ C3] ip6_finish_output2+0x512/0xf60 [ 37.705771][ C3] ip6_finish_output+0x553/0xdf0 [ 37.706082][ C3] ip6_output+0x1f3/0x770 [ 37.706284][ C3] ip6_send_skb+0xbd/0x280 [ 37.706491][ C3] rawv6_push_pending_frames+0x518/0x9d0 [ 37.706846][ C3] rawv6_sendmsg+0x1287/0x17d0 [ 37.707050][ C3] __sys_sendto+0x332/0x410 [ 37.707254][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 37.707457][ C3] do_syscall_64+0xc6/0x1e0 [ 37.707769][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 37.708015][ C3] INITIAL USE at: [ 37.708140][ C3] __lock_acquire+0x797/0x1570 [ 37.708453][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.708657][ C3] _raw_write_lock_bh+0x38/0x50 [ 37.708861][ C3] addrconf_permanent_addr+0x6e/0x670 [ 37.709066][ C3] addrconf_notify+0x749/0xd60 [ 37.709381][ C3] notifier_call_chain+0xcd/0x150 [ 37.709589][ C3] __dev_notify_flags+0xe6/0x250 [ 37.709808][ C3] dev_change_flags+0xec/0x160 [ 37.710229][ C3] do_setlink+0x7d6/0x21e0 [ 37.710433][ C3] __rtnl_newlink+0xaa7/0xd80 [ 37.710639][ C3] rtnl_newlink+0x63/0xa0 [ 37.710844][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 37.711155][ C3] netlink_rcv_skb+0x130/0x360 [ 37.711363][ C3] netlink_unicast+0x449/0x710 [ 37.711567][ C3] netlink_sendmsg+0x723/0xbe0 [ 37.711884][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 37.712087][ C3] ___sys_sendmsg+0xee/0x170 [ 37.712292][ C3] __sys_sendmsg+0xcd/0x170 [ 37.712606][ C3] do_syscall_64+0xc6/0x1e0 [ 37.712810][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 37.713059][ C3] INITIAL READ USE at: [ 37.713182][ C3] __lock_acquire+0x797/0x1570 [ 37.713386][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.713590][ C3] _raw_read_lock_bh+0x44/0x80 [ 37.713795][ C3] inet6_fill_ifla6_attrs+0x516/0x740 [ 37.714150][ C3] inet6_fill_link_af+0x5e/0xe0 [ 37.714357][ C3] rtnl_fill_ifinfo+0x1615/0x2a90 [ 37.714560][ C3] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 37.714913][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 37.715160][ C3] rtmsg_ifinfo+0x5b/0xa0 [ 37.715364][ C3] register_netdevice+0x1177/0x1690 [ 37.715720][ C3] register_netdev+0x20/0x40 [ 37.715924][ C3] vti6_init_net+0x25d/0x380 [ 37.716128][ C3] ops_init+0x9b/0x560 [ 37.716333][ C3] register_pernet_operations+0x2db/0x710 [ 37.716688][ C3] register_pernet_device+0x2a/0x60 [ 37.716934][ C3] vti6_tunnel_init+0x18/0x110 [ 37.717142][ C3] do_one_initcall+0x8d/0x1e0 [ 37.717346][ C3] do_initcalls+0x1b2/0x3e0 [ 37.717553][ C3] kernel_init_freeable+0x232/0x310 [ 37.717796][ C3] kernel_init+0x20/0x200 [ 37.718109][ C3] ret_from_fork+0x31/0x70 [ 37.718313][ C3] ret_from_fork_asm+0x1a/0x30 [ 37.718524][ C3] } [ 37.718606][ C3] ... key at: [] __key.37+0x0/0x40 [ 37.718957][ C3] ... acquired at: [ 37.719077][ C3] mark_lock+0x28d/0x3e0 [ 37.719240][ C3] mark_usage+0xd9/0x2a0 [ 37.719403][ C3] __lock_acquire+0x797/0x1570 [ 37.719680][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.719856][ C3] _raw_read_lock_bh+0x44/0x80 [ 37.720020][ C3] ipv6_get_lladdr+0xa9/0x3e0 [ 37.720185][ C3] ndisc_send_ns+0xe7/0x100 [ 37.720456][ C3] ndisc_solicit+0x2ae/0x4d0 [ 37.720618][ C3] neigh_probe+0xaa/0xf0 [ 37.720781][ C3] __neigh_event_send+0x7af/0xfe0 [ 37.720946][ C3] neigh_resolve_output+0x470/0x7c0 [ 37.721109][ C3] ip6_finish_output2+0x512/0xf60 [ 37.721377][ C3] ip6_finish_output+0x553/0xdf0 [ 37.721539][ C3] ip6_output+0x1f3/0x770 [ 37.721704][ C3] ip6_forward+0xf29/0x2980 [ 37.721866][ C3] ipv6_rcv+0x626/0x810 [ 37.722097][ C3] __netif_receive_skb_one_core+0x118/0x1b0 [ 37.722302][ C3] netif_receive_skb_internal+0xb0/0x330 [ 37.722505][ C3] netif_receive_skb+0x1b/0x30 [ 37.722668][ C3] br_handle_frame_finish+0xbef/0x1ce0 [ 37.723046][ C3] br_handle_frame+0x60d/0xd60 [ 37.723209][ C3] __netif_receive_skb_core.constprop.0+0x759/0x2d20 [ 37.723417][ C3] __netif_receive_skb_one_core+0xaf/0x1b0 [ 37.723620][ C3] process_backlog+0x103/0x670 [ 37.723890][ C3] __napi_poll.constprop.0+0xa2/0x460 [ 37.724053][ C3] net_rx_action+0x49f/0xc00 [ 37.724216][ C3] __do_softirq+0x1f8/0x5df [ 37.724379][ C3] do_softirq+0x4d/0xa0 [ 37.724615][ C3] __local_bh_enable_ip+0xf6/0x120 [ 37.724778][ C3] __neigh_event_send+0x2e4/0xfe0 [ 37.724944][ C3] neigh_resolve_output+0x470/0x7c0 [ 37.725106][ C3] ip6_finish_output2+0x512/0xf60 [ 37.725268][ C3] ip6_finish_output+0x553/0xdf0 [ 37.725430][ C3] ip6_output+0x1f3/0x770 [ 37.725593][ C3] ip6_send_skb+0xbd/0x280 [ 37.725756][ C3] rawv6_push_pending_frames+0x518/0x9d0 [ 37.726064][ C3] rawv6_sendmsg+0x1287/0x17d0 [ 37.726229][ C3] __sys_sendto+0x332/0x410 [ 37.726392][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 37.726559][ C3] do_syscall_64+0xc6/0x1e0 [ 37.726722][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 37.727033][ C3] [ 37.727115][ C3] [ 37.727115][ C3] stack backtrace: [ 37.727314][ C3] CPU: 3 PID: 306 Comm: ping6 Not tainted 6.9.0-rc1-virtme #1 [ 37.727670][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 37.728041][ C3] Call Trace: [ 37.728170][ C3] [ 37.728255][ C3] dump_stack_lvl+0x82/0xd0 [ 37.728531][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 37.728735][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 37.728941][ C3] ? __pfx_usage_skip+0x10/0x10 [ 37.729104][ C3] ? __pfx_usage_match+0x10/0x10 [ 37.729275][ C3] ? arch_stack_walk+0xa2/0xf0 [ 37.729444][ C3] mark_lock_irq+0x4cd/0xa10 [ 37.729609][ C3] ? __pfx_mark_lock_irq+0x10/0x10 [ 37.729781][ C3] ? stack_trace_save+0x94/0xd0 [ 37.730056][ C3] ? save_trace+0x8f/0x5b0 [ 37.730221][ C3] mark_lock+0x28d/0x3e0 [ 37.730348][ C3] mark_usage+0xd9/0x2a0 [ 37.730472][ C3] __lock_acquire+0x797/0x1570 [ 37.730637][ C3] lock_acquire.part.0+0xeb/0x330 [ 37.730908][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 37.731075][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 37.731238][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 37.731402][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 37.731674][ C3] ? lock_acquire+0x32/0xc0 [ 37.731837][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 37.732000][ C3] _raw_read_lock_bh+0x44/0x80 [ 37.732163][ C3] ? ipv6_get_lladdr+0xa9/0x3e0 [ 37.732430][ C3] ipv6_get_lladdr+0xa9/0x3e0 [ 37.732595][ C3] ndisc_send_ns+0xe7/0x100 [ 37.732761][ C3] ? __pfx_ndisc_send_ns+0x10/0x10 [ 37.732925][ C3] ? __ipv6_chk_addr_and_flags+0x393/0x650 [ 37.733236][ C3] ndisc_solicit+0x2ae/0x4d0 [ 37.733399][ C3] ? __pfx_ndisc_solicit+0x10/0x10 [ 37.733562][ C3] ? neigh_probe+0x57/0xf0 [ 37.733726][ C3] neigh_probe+0xaa/0xf0 [ 37.733852][ C3] __neigh_event_send+0x7af/0xfe0 [ 37.734124][ C3] neigh_resolve_output+0x470/0x7c0 [ 37.734289][ C3] ? __local_bh_enable_ip+0xa6/0x120 [ 37.734452][ C3] ? ___neigh_create+0x7c6/0xe10 [ 37.734618][ C3] ip6_finish_output2+0x512/0xf60 [ 37.734890][ C3] ip6_finish_output+0x553/0xdf0 [ 37.735055][ C3] ip6_output+0x1f3/0x770 [ 37.735179][ C3] ? __pfx_ip6_output+0x10/0x10 [ 37.735342][ C3] ? ip6_dst_mtu_maybe_forward.constprop.0+0x189/0x3c0 [ 37.735760][ C3] ip6_forward+0xf29/0x2980 [ 37.735925][ C3] ? ip6_route_input+0x5a4/0xa50 [ 37.736091][ C3] ? __pfx_ip6_forward+0x10/0x10 [ 37.736255][ C3] ? ip6_rcv_core+0x9e5/0x1ae0 [ 37.736421][ C3] ? ipv6_rcv+0x626/0x810 [ 37.736653][ C3] ipv6_rcv+0x626/0x810 [ 37.736776][ C3] ? __pfx_ipv6_rcv+0x10/0x10 [ 37.736948][ C3] ? lock_acquire.part.0+0xeb/0x330 [ 37.737111][ C3] ? netif_receive_skb_internal+0x84/0x330 [ 37.737317][ C3] ? __pfx_ipv6_rcv+0x10/0x10 [ 37.737487][ C3] __netif_receive_skb_one_core+0x118/0x1b0 [ 37.737691][ C3] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 37.737895][ C3] ? netif_receive_skb_internal+0x84/0x330 [ 37.738213][ C3] ? lock_acquire+0x32/0xc0 [ 37.738376][ C3] ? netif_receive_skb_internal+0x84/0x330 [ 37.738582][ C3] netif_receive_skb_internal+0xb0/0x330 [ 37.738750][ C3] ? __pfx_netif_receive_skb_internal+0x10/0x10 [ 37.739061][ C3] ? fdb_find_rcu+0xe9/0x180 [ 37.739228][ C3] netif_receive_skb+0x1b/0x30 [ 37.739390][ C3] br_handle_frame_finish+0xbef/0x1ce0 [ 37.739554][ C3] ? __pfx_br_handle_frame_finish+0x10/0x10 [ 37.739889][ C3] ? ip6_input_finish+0x13c/0x260 [ 37.740052][ C3] ? ip6_protocol_deliver_rcu+0xb9c/0x1330 [ 37.740257][ C3] br_handle_frame+0x60d/0xd60 [ 37.740529][ C3] ? __pfx_br_handle_frame+0x10/0x10 [ 37.740696][ C3] __netif_receive_skb_core.constprop.0+0x759/0x2d20 [ 37.740900][ C3] ? mark_lock+0x38/0x3e0 [ 37.741027][ C3] ? __lock_acquire+0xaf0/0x1570 [ 37.741190][ C3] ? __pfx___netif_receive_skb_core.constprop.0+0x10/0x10 [ 37.741396][ C3] ? lock_acquire.part.0+0xeb/0x330 [ 37.741559][ C3] ? process_backlog+0x1f8/0x670 [ 37.741723][ C3] __netif_receive_skb_one_core+0xaf/0x1b0 [ 37.742039][ C3] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 37.742244][ C3] ? process_backlog+0x1f8/0x670 [ 37.742407][ C3] ? lock_acquire+0x32/0xc0 [ 37.742571][ C3] ? process_backlog+0x1f8/0x670 [ 37.742843][ C3] process_backlog+0x103/0x670 [ 37.743006][ C3] ? find_held_lock+0x2c/0x110 [ 37.743169][ C3] __napi_poll.constprop.0+0xa2/0x460 [ 37.743335][ C3] net_rx_action+0x49f/0xc00 [ 37.743501][ C3] ? __pfx_net_rx_action+0x10/0x10 [ 37.743775][ C3] ? usage_skip+0x150/0x190 [ 37.743938][ C3] ? mark_held_locks+0x9e/0xe0 [ 37.744102][ C3] __do_softirq+0x1f8/0x5df [ 37.744267][ C3] ? __neigh_event_send+0x2df/0xfe0 [ 37.744538][ C3] do_softirq+0x4d/0xa0 [ 37.744661][ C3] [ 37.744744][ C3] [ 37.744826][ C3] __local_bh_enable_ip+0xf6/0x120 [ 37.744989][ C3] __neigh_event_send+0x2e4/0xfe0 [ 37.745262][ C3] neigh_resolve_output+0x470/0x7c0 [ 37.745425][ C3] ? __local_bh_enable_ip+0xa6/0x120 [ 37.745588][ C3] ? ___neigh_create+0x7c6/0xe10 [ 37.745754][ C3] ip6_finish_output2+0x512/0xf60 [ 37.745917][ C3] ip6_finish_output+0x553/0xdf0 [ 37.746188][ C3] ip6_output+0x1f3/0x770 [ 37.746311][ C3] ? __pfx___ip6_make_skb+0x10/0x10 [ 37.746474][ C3] ? __pfx_ip6_output+0x10/0x10 [ 37.746640][ C3] ? ip6_local_out+0x25/0x3b0 [ 37.746913][ C3] ip6_send_skb+0xbd/0x280 [ 37.747076][ C3] rawv6_push_pending_frames+0x518/0x9d0 [ 37.747239][ C3] ? __pfx_raw6_getfrag+0x10/0x10 [ 37.747402][ C3] ? ip6_append_data+0x185/0x540 [ 37.747677][ C3] ? __pfx_rawv6_push_pending_frames+0x10/0x10 [ 37.747881][ C3] rawv6_sendmsg+0x1287/0x17d0 [ 37.748046][ C3] ? __pfx_validate_chain+0x10/0x10 [ 37.748221][ C3] ? __pfx_rawv6_sendmsg+0x10/0x10 [ 37.748599][ C3] ? __lock_acquire+0xaf0/0x1570 [ 37.748765][ C3] ? find_held_lock+0x2c/0x110 [ 37.748929][ C3] ? __might_fault+0x11b/0x170 [ 37.749099][ C3] ? lock_acquire+0x32/0xc0 [ 37.749265][ C3] ? __might_fault+0xc3/0x170 [ 37.749428][ C3] ? __might_fault+0x11b/0x170 [ 37.749592][ C3] ? __sys_sendto+0x332/0x410 [ 37.749760][ C3] __sys_sendto+0x332/0x410 [ 37.749926][ C3] ? __pfx___sys_sendto+0x10/0x10 [ 37.750199][ C3] ? do_user_addr_fault+0x449/0xbe0 [ 37.750362][ C3] ? reacquire_held_locks+0x22f/0x4f0 [ 37.750530][ C3] ? __lock_release+0x103/0x460 [ 37.750695][ C3] ? do_user_addr_fault+0x4b8/0xbe0 [ 37.750964][ C3] ? __up_read+0x1a7/0x780 [ 37.751127][ C3] ? __pfx___up_read+0x10/0x10 [ 37.751289][ C3] ? do_user_addr_fault+0x4b8/0xbe0 [ 37.751456][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 37.751729][ C3] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 37.751933][ C3] do_syscall_64+0xc6/0x1e0 [ 37.752096][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 37.752298][ C3] RIP: 0033:0x7fd0ac13d85a [ 37.752579][ C3] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 [ 37.753160][ C3] RSP: 002b:00007ffcdec798a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 37.753412][ C3] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007fd0ac13d85a [ 37.753657][ C3] RDX: 0000000000000040 RSI: 000000003f0fc340 RDI: 0000000000000005 [ 37.753903][ C3] RBP: 00007ffcdec79930 R08: 0000000000418574 R09: 000000000000001c [ 37.754257][ C3] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000419ac0 [ 37.754500][ C3] R13: 000000000040305a R14: 0000000000415dd0 R15: 00007fd0ac263000 [ 37.754855][ C3] [ 42.183327][ T10] br0: port 1(eth0) entered disabled state [ 42.186850][ T10] eth0 (unregistering): left allmulticast mode [ 42.187067][ T10] eth0 (unregistering): left promiscuous mode [ 42.187266][ T10] br0: port 1(eth0) entered disabled state [ 42.739185][ T10] eth1: left allmulticast mode [ 42.739377][ T10] eth1: left promiscuous mode [ 42.739672][ T10] br0: port 2(eth1) entered disabled state [ 49.305679][ T365] eth1: renamed from tmp [ 51.052830][ T374] eth2: renamed from tmp