[ 33.751034][ T525] ip6_gre: GRE over IPv6 tunneling driver [ 40.381581][ T612] GACT probability NOT on [ 40.495488][ C2] [ 40.495567][ C2] ======================================================== [ 40.495721][ C2] WARNING: possible irq lock inversion dependency detected [ 40.495863][ C2] 7.1.0-rc5-virtme #1 Not tainted [ 40.495960][ C2] -------------------------------------------------------- [ 40.496105][ C2] mausezahn/618 just changed the state of lock: [ 40.496224][ C2] ff11000002902578 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 40.496405][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 40.496551][ C2] (acaddr_hash_lock){+.+.}-{3:3} [ 40.496554][ C2] [ 40.496554][ C2] [ 40.496554][ C2] and interrupts could create inverse lock ordering between them. [ 40.496554][ C2] [ 40.496897][ C2] [ 40.496897][ C2] other info that might help us debug this: [ 40.497038][ C2] Possible interrupt unsafe locking scenario: [ 40.497038][ C2] [ 40.497183][ C2] CPU0 CPU1 [ 40.497279][ C2] ---- ---- [ 40.497374][ C2] lock(acaddr_hash_lock); [ 40.497471][ C2] local_irq_disable(); [ 40.497595][ C2] lock(&ndev->lock); [ 40.497715][ C2] lock(acaddr_hash_lock); [ 40.497834][ C2] [ 40.497906][ C2] lock(&ndev->lock); [ 40.497979][ C2] [ 40.497979][ C2] *** DEADLOCK *** [ 40.497979][ C2] [ 40.498120][ C2] 6 locks held by mausezahn/618: [ 40.498215][ C2] #0: ffffffffafd77d20 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 40.498388][ C2] #1: ffffffffafd77d20 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 40.498562][ C2] #2: ffffffffafd77d20 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 40.498732][ C2] #3: ffffffffafd77cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1fe/0x1b60 [ 40.498903][ C2] #4: ffffffffafd77d20 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 40.499072][ C2] #5: ffffffffafd77d20 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 40.499241][ C2] [ 40.499241][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 40.499408][ C2] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 40.499512][ C2] HARDIRQ-ON-W at: [ 40.499587][ C2] __lock_acquire+0x378/0xc10 [ 40.499714][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.499835][ C2] _raw_spin_lock+0x33/0x40 [ 40.499959][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 40.500105][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 40.500226][ C2] addrconf_join_anycast+0x1bc/0x260 [ 40.500350][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 40.500470][ C2] addrconf_dad_completed+0x14b/0xe10 [ 40.500623][ C2] addrconf_dad_begin+0x2e1/0x540 [ 40.500743][ C2] addrconf_dad_work+0x170/0x930 [ 40.500863][ C2] process_one_work+0xdf8/0x1410 [ 40.500987][ C2] worker_thread+0x4f1/0xd60 [ 40.501111][ C2] kthread+0x367/0x460 [ 40.501230][ C2] ret_from_fork+0x474/0x6b0 [ 40.501352][ C2] ret_from_fork_asm+0x11/0x20 [ 40.501479][ C2] SOFTIRQ-ON-W at: [ 40.501552][ C2] __lock_acquire+0x378/0xc10 [ 40.501673][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.501794][ C2] _raw_spin_lock+0x33/0x40 [ 40.501913][ C2] __ipv6_dev_ac_dec+0x236/0x5d0 [ 40.502033][ C2] addrconf_leave_anycast+0x1bc/0x260 [ 40.502178][ C2] __ipv6_ifa_notify+0x6b4/0xad0 [ 40.502299][ C2] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 40.502444][ C2] addrconf_notify+0x339/0xf30 [ 40.502570][ C2] notifier_call_chain+0xb0/0x320 [ 40.502690][ C2] __netdev_upper_dev_link+0x3a5/0x590 [ 40.502837][ C2] netdev_master_upper_dev_link+0x86/0xb0 [ 40.502983][ C2] vrf_add_slave+0xdd/0x210 [vrf] [ 40.503107][ C2] do_set_master+0x357/0x580 [ 40.503227][ C2] do_setlink.isra.0+0xa31/0x2750 [ 40.503347][ C2] rtnl_newlink+0x8d1/0xef0 [ 40.503467][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 40.503594][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 40.503713][ C2] netlink_unicast+0x486/0x750 [ 40.503833][ C2] netlink_sendmsg+0x735/0xc60 [ 40.503953][ C2] ____sys_sendmsg+0x419/0x850 [ 40.504074][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 40.504197][ C2] __sys_sendmsg+0x145/0x1f0 [ 40.504318][ C2] do_syscall_64+0x117/0x590 [ 40.504438][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.504589][ C2] INITIAL USE at: [ 40.504662][ C2] __lock_acquire+0x378/0xc10 [ 40.504782][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.504901][ C2] _raw_spin_lock+0x33/0x40 [ 40.505020][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 40.505163][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 40.505284][ C2] addrconf_join_anycast+0x1bc/0x260 [ 40.505403][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 40.505525][ C2] addrconf_dad_completed+0x14b/0xe10 [ 40.505647][ C2] addrconf_dad_begin+0x2e1/0x540 [ 40.505766][ C2] addrconf_dad_work+0x170/0x930 [ 40.505886][ C2] process_one_work+0xdf8/0x1410 [ 40.506007][ C2] worker_thread+0x4f1/0xd60 [ 40.506130][ C2] kthread+0x367/0x460 [ 40.506253][ C2] ret_from_fork+0x474/0x6b0 [ 40.506373][ C2] ret_from_fork_asm+0x11/0x20 [ 40.506500][ C2] } [ 40.506550][ C2] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 40.506697][ C2] ... acquired at: [ 40.506770][ C2] __lock_acquire+0x508/0xc10 [ 40.506869][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.506965][ C2] _raw_spin_lock+0x33/0x40 [ 40.507060][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 40.507180][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 40.507276][ C2] addrconf_join_anycast+0x1bc/0x260 [ 40.507373][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 40.507469][ C2] addrconf_dad_completed+0x14b/0xe10 [ 40.507571][ C2] addrconf_dad_begin+0x2e1/0x540 [ 40.507668][ C2] addrconf_dad_work+0x170/0x930 [ 40.507765][ C2] process_one_work+0xdf8/0x1410 [ 40.507862][ C2] worker_thread+0x4f1/0xd60 [ 40.507957][ C2] kthread+0x367/0x460 [ 40.508031][ C2] ret_from_fork+0x474/0x6b0 [ 40.508128][ C2] ret_from_fork_asm+0x11/0x20 [ 40.508226][ C2] [ 40.508276][ C2] -> (&ndev->lock){++.-}-{3:3} { [ 40.508376][ C2] HARDIRQ-ON-W at: [ 40.508449][ C2] __lock_acquire+0x378/0xc10 [ 40.508576][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.508697][ C2] _raw_write_lock_bh+0x38/0x50 [ 40.508819][ C2] addrconf_permanent_addr+0x108/0x9c0 [ 40.508941][ C2] addrconf_notify+0x151/0xf30 [ 40.509064][ C2] notifier_call_chain+0xb0/0x320 [ 40.509185][ C2] __dev_notify_flags+0xde/0x280 [ 40.509307][ C2] netif_change_flags+0xfe/0x190 [ 40.509428][ C2] do_setlink.isra.0+0x1cc3/0x2750 [ 40.509554][ C2] rtnl_newlink+0x8d1/0xef0 [ 40.509675][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 40.509795][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 40.509914][ C2] netlink_unicast+0x486/0x750 [ 40.510033][ C2] netlink_sendmsg+0x735/0xc60 [ 40.510155][ C2] ____sys_sendmsg+0x419/0x850 [ 40.510278][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 40.510402][ C2] __sys_sendmsg+0x145/0x1f0 [ 40.510525][ C2] do_syscall_64+0x117/0x590 [ 40.510645][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.510789][ C2] HARDIRQ-ON-R at: [ 40.510863][ C2] __lock_acquire+0x378/0xc10 [ 40.510985][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.511107][ C2] _raw_read_lock_bh+0x44/0x80 [ 40.511227][ C2] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 40.511372][ C2] inet6_fill_link_af+0x5c/0xe0 [ 40.511495][ C2] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 40.511640][ C2] rtnl_getlink+0x9c9/0xeb0 [ 40.511763][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 40.511884][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 40.512005][ C2] netlink_unicast+0x486/0x750 [ 40.512126][ C2] netlink_sendmsg+0x735/0xc60 [ 40.512246][ C2] ____sys_sendmsg+0x419/0x850 [ 40.512370][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 40.512495][ C2] __sys_sendmsg+0x145/0x1f0 [ 40.512617][ C2] do_syscall_64+0x117/0x590 [ 40.512737][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.512881][ C2] IN-SOFTIRQ-R at: [ 40.512955][ C2] __lock_acquire+0x378/0xc10 [ 40.513075][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.513198][ C2] _raw_read_lock_bh+0x44/0x80 [ 40.513319][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 40.513440][ C2] ndisc_send_ns+0xf3/0x120 [ 40.513567][ C2] ndisc_solicit+0x314/0x480 [ 40.513688][ C2] neigh_probe+0xb3/0x100 [ 40.513809][ C2] __neigh_event_send+0x802/0x1070 [ 40.513930][ C2] neigh_resolve_output+0xbe/0x140 [ 40.514050][ C2] ip6_finish_output2+0x423/0x1300 [ 40.514171][ C2] ip6_finish_output+0x646/0xda0 [ 40.514291][ C2] ip6_output+0x23f/0x7f0 [ 40.514413][ C2] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 40.514562][ C2] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 40.514683][ C2] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 40.514826][ C2] dev_hard_start_xmit+0xf8/0x690 [ 40.514947][ C2] __dev_queue_xmit+0xbf4/0x1b60 [ 40.515068][ C2] ip_finish_output2+0x5b9/0x1bc0 [ 40.515191][ C2] ip_output+0x1ca/0x660 [ 40.515311][ C2] ip_rcv+0xdc/0x3d0 [ 40.515408][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 40.515552][ C2] process_backlog+0x2bc/0x1490 [ 40.515672][ C2] __napi_poll+0xa7/0x3b0 [ 40.515796][ C2] net_rx_action+0x513/0xf50 [ 40.515916][ C2] handle_softirqs+0x1d8/0x940 [ 40.516038][ C2] do_softirq+0xa9/0xe0 [ 40.516159][ C2] __local_bh_enable_ip+0x113/0x140 [ 40.516280][ C2] __dev_queue_xmit+0x95b/0x1b60 [ 40.516402][ C2] packet_snd+0xfad/0x1990 [ 40.516530][ C2] __sys_sendto+0x2c9/0x400 [ 40.516652][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 40.516773][ C2] do_syscall_64+0x117/0x590 [ 40.516894][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.517038][ C2] INITIAL USE at: [ 40.517112][ C2] __lock_acquire+0x378/0xc10 [ 40.517234][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.517354][ C2] _raw_write_lock_bh+0x38/0x50 [ 40.517479][ C2] addrconf_permanent_addr+0x108/0x9c0 [ 40.517601][ C2] addrconf_notify+0x151/0xf30 [ 40.517721][ C2] notifier_call_chain+0xb0/0x320 [ 40.517841][ C2] __dev_notify_flags+0xde/0x280 [ 40.517962][ C2] netif_change_flags+0xfe/0x190 [ 40.518081][ C2] do_setlink.isra.0+0x1cc3/0x2750 [ 40.518203][ C2] rtnl_newlink+0x8d1/0xef0 [ 40.518324][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 40.518446][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 40.518573][ C2] netlink_unicast+0x486/0x750 [ 40.518694][ C2] netlink_sendmsg+0x735/0xc60 [ 40.518815][ C2] ____sys_sendmsg+0x419/0x850 [ 40.518938][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 40.519057][ C2] __sys_sendmsg+0x145/0x1f0 [ 40.519178][ C2] do_syscall_64+0x117/0x590 [ 40.519300][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.519444][ C2] INITIAL READ USE at: [ 40.519520][ C2] __lock_acquire+0x378/0xc10 [ 40.519641][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.519762][ C2] _raw_read_lock_bh+0x44/0x80 [ 40.519883][ C2] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 40.520031][ C2] inet6_fill_link_af+0x5c/0xe0 [ 40.520154][ C2] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 40.520300][ C2] rtnl_getlink+0x9c9/0xeb0 [ 40.520420][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 40.520544][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 40.520666][ C2] netlink_unicast+0x486/0x750 [ 40.520786][ C2] netlink_sendmsg+0x735/0xc60 [ 40.520908][ C2] ____sys_sendmsg+0x419/0x850 [ 40.521028][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 40.521152][ C2] __sys_sendmsg+0x145/0x1f0 [ 40.521274][ C2] do_syscall_64+0x117/0x590 [ 40.521395][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.521545][ C2] } [ 40.521595][ C2] ... key at: [] __key.37+0x0/0x40 [ 40.521742][ C2] ... acquired at: [ 40.521814][ C2] mark_lock+0x1d7/0xa00 [ 40.521911][ C2] mark_usage+0x42/0x170 [ 40.522008][ C2] __lock_acquire+0x378/0xc10 [ 40.522107][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.522203][ C2] _raw_read_lock_bh+0x44/0x80 [ 40.522302][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 40.522399][ C2] ndisc_send_ns+0xf3/0x120 [ 40.522499][ C2] ndisc_solicit+0x314/0x480 [ 40.522594][ C2] neigh_probe+0xb3/0x100 [ 40.522694][ C2] __neigh_event_send+0x802/0x1070 [ 40.522792][ C2] neigh_resolve_output+0xbe/0x140 [ 40.522889][ C2] ip6_finish_output2+0x423/0x1300 [ 40.522986][ C2] ip6_finish_output+0x646/0xda0 [ 40.523083][ C2] ip6_output+0x23f/0x7f0 [ 40.523181][ C2] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 40.523305][ C2] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 40.523401][ C2] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 40.523526][ C2] dev_hard_start_xmit+0xf8/0x690 [ 40.523623][ C2] __dev_queue_xmit+0xbf4/0x1b60 [ 40.523720][ C2] ip_finish_output2+0x5b9/0x1bc0 [ 40.523817][ C2] ip_output+0x1ca/0x660 [ 40.523916][ C2] ip_rcv+0xdc/0x3d0 [ 40.523991][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 40.524112][ C2] process_backlog+0x2bc/0x1490 [ 40.524208][ C2] __napi_poll+0xa7/0x3b0 [ 40.524305][ C2] net_rx_action+0x513/0xf50 [ 40.524402][ C2] handle_softirqs+0x1d8/0x940 [ 40.524503][ C2] do_softirq+0xa9/0xe0 [ 40.524575][ C2] __local_bh_enable_ip+0x113/0x140 [ 40.524671][ C2] __dev_queue_xmit+0x95b/0x1b60 [ 40.524769][ C2] packet_snd+0xfad/0x1990 [ 40.524865][ C2] __sys_sendto+0x2c9/0x400 [ 40.524961][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 40.525058][ C2] do_syscall_64+0x117/0x590 [ 40.525156][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.525276][ C2] [ 40.525325][ C2] [ 40.525325][ C2] stack backtrace: [ 40.525448][ C2] CPU: 2 UID: 0 PID: 618 Comm: mausezahn Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 40.525451][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 40.525453][ C2] Call Trace: [ 40.525454][ C2] [ 40.525455][ C2] dump_stack_lvl+0x6f/0xa0 [ 40.525459][ C2] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 40.525463][ C2] mark_lock_irq+0x989/0x9c0 [ 40.525465][ C2] mark_lock+0x1d7/0xa00 [ 40.525467][ C2] mark_usage+0x42/0x170 [ 40.525468][ C2] __lock_acquire+0x378/0xc10 [ 40.525470][ C2] ? __lock_acquire+0x508/0xc10 [ 40.525472][ C2] lock_acquire.part.0+0xbc/0x260 [ 40.525476][ C2] ? ipv6_get_lladdr+0xa8/0x3f0 [ 40.525478][ C2] ? rcu_is_watching+0x15/0xd0 [ 40.525482][ C2] ? lock_acquire+0x134/0x160 [ 40.525483][ C2] _raw_read_lock_bh+0x44/0x80 [ 40.525485][ C2] ? ipv6_get_lladdr+0xa8/0x3f0 [ 40.525487][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 40.525489][ C2] ndisc_send_ns+0xf3/0x120 [ 40.525490][ C2] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 40.525493][ C2] ? ndisc_parse_options+0x30/0x30 [ 40.525494][ C2] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 40.525496][ C2] ndisc_solicit+0x314/0x480 [ 40.525498][ C2] ? ndisc_send_ns+0x120/0x120 [ 40.525499][ C2] ? neigh_probe+0x62/0x100 [ 40.525502][ C2] neigh_probe+0xb3/0x100 [ 40.525503][ C2] __neigh_event_send+0x802/0x1070 [ 40.525505][ C2] ? warn_bogus_irq_restore+0x1/0x20 [ 40.525508][ C2] ? ___neigh_create+0x811/0x1070 [ 40.525510][ C2] neigh_resolve_output+0xbe/0x140 [ 40.525512][ C2] ip6_finish_output2+0x423/0x1300 [ 40.525514][ C2] ? ip6_xmit+0x2000/0x2000 [ 40.525516][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 40.525517][ C2] ? find_held_lock+0x2b/0x80 [ 40.525520][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 40.525522][ C2] ? ip6_mtu+0x15d/0x310 [ 40.525524][ C2] ip6_finish_output+0x646/0xda0 [ 40.525526][ C2] ip6_output+0x23f/0x7f0 [ 40.525528][ C2] ? ip6_finish_output+0xda0/0xda0 [ 40.525529][ C2] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 40.525532][ C2] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 40.525536][ C2] ? ip_route_input+0x420/0x420 [ip6_tunnel] [ 40.525538][ C2] ? pskb_expand_head+0x4ac/0xf50 [ 40.525540][ C2] ? __lock_acquire+0x508/0xc10 [ 40.525542][ C2] ? __pskb_copy_fclone+0x1080/0x1080 [ 40.525544][ C2] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 40.525546][ C2] ? __ipv6_chk_addr_and_flags+0x1b0/0x5f0 [ 40.525549][ C2] ? gre_build_header+0xa70/0xa70 [ip6_gre] [ 40.525551][ C2] ? ip6_tnl_xmit_ctl+0x21e/0x390 [ip6_tunnel] [ 40.525553][ C2] ? __asan_memcpy+0x3c/0x60 [ 40.525557][ C2] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 40.525559][ C2] ? __gre6_xmit+0x1910/0x1910 [ip6_gre] [ 40.525560][ C2] ? sock_def_readable+0x156/0x490 [ 40.525562][ C2] ? find_held_lock+0x2b/0x80 [ 40.525565][ C2] ? dev_queue_xmit_nit+0x642/0x9e0 [ 40.525568][ C2] dev_hard_start_xmit+0xf8/0x690 [ 40.525570][ C2] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 40.525572][ C2] ? rcu_is_watching+0x15/0xd0 [ 40.525574][ C2] __dev_queue_xmit+0xbf4/0x1b60 [ 40.525576][ C2] ? __lock_acquire+0x508/0xc10 [ 40.525578][ C2] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 40.525580][ C2] ? find_held_lock+0x2b/0x80 [ 40.525582][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 40.525584][ C2] ? ___neigh_create+0x811/0x1070 [ 40.525586][ C2] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 40.525588][ C2] ip_finish_output2+0x5b9/0x1bc0 [ 40.525591][ C2] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 40.525593][ C2] ? ip4_dst_hoplimit+0x320/0x320 [ 40.525595][ C2] ? rcu_is_watching+0x15/0xd0 [ 40.525597][ C2] ip_output+0x1ca/0x660 [ 40.525598][ C2] ? ip_finish_output+0x460/0x460 [ 40.525599][ C2] ? ip4_frag_init+0x720/0x720 [ 40.525602][ C2] ? ip_forward+0xfa7/0x1570 [ 40.525604][ C2] ? process_backlog+0x561/0x1490 [ 40.525605][ C2] ip_rcv+0xdc/0x3d0 [ 40.525607][ C2] ? ip_local_deliver+0x4c0/0x4c0 [ 40.525609][ C2] ? mark_usage+0x61/0x170 [ 40.525611][ C2] ? __lock_acquire+0x508/0xc10 [ 40.525612][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 40.525614][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 40.525615][ C2] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 40.525617][ C2] ? rcu_is_watching+0x15/0xd0 [ 40.525619][ C2] process_backlog+0x2bc/0x1490 [ 40.525621][ C2] __napi_poll+0xa7/0x3b0 [ 40.525623][ C2] net_rx_action+0x513/0xf50 [ 40.525625][ C2] ? __napi_poll+0x3b0/0x3b0 [ 40.525626][ C2] ? find_held_lock+0x2b/0x80 [ 40.525630][ C2] ? __run_timers+0xab0/0xab0 [ 40.525632][ C2] ? rcu_is_watching+0x15/0xd0 [ 40.525634][ C2] ? rcu_is_watching+0x15/0xd0 [ 40.525636][ C2] handle_softirqs+0x1d8/0x940 [ 40.525637][ C2] ? rcu_is_watching+0x15/0xd0 [ 40.525639][ C2] ? _local_bh_enable+0xd0/0xd0 [ 40.525641][ C2] ? trace_csd_function_exit+0xb3/0x1a0 [ 40.525643][ C2] ? rcu_is_watching+0x15/0xd0 [ 40.525645][ C2] do_softirq+0xa9/0xe0 [ 40.525646][ C2] [ 40.525647][ C2] [ 40.525648][ C2] ? __dev_queue_xmit+0x946/0x1b60 [ 40.525649][ C2] __local_bh_enable_ip+0x113/0x140 [ 40.525651][ C2] __dev_queue_xmit+0x95b/0x1b60 [ 40.525653][ C2] ? _copy_from_iter+0x1bb/0x1810 [ 40.525657][ C2] ? _copy_from_iter_flushcache+0x1970/0x1970 [ 40.525659][ C2] ? net_dim+0x730/0xd70 [ 40.525661][ C2] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 40.525664][ C2] ? packet_release+0xc70/0xc70 [ 40.525667][ C2] packet_snd+0xfad/0x1990 [ 40.525669][ C2] ? tpacket_snd+0x19e0/0x19e0 [ 40.525671][ C2] ? __might_fault+0x97/0x140 [ 40.525674][ C2] ? __might_fault+0x97/0x140 [ 40.525675][ C2] ? __might_fault+0x97/0x140 [ 40.525677][ C2] __sys_sendto+0x2c9/0x400 [ 40.525679][ C2] ? __ia32_sys_getpeername+0xd0/0xd0 [ 40.525682][ C2] ? sock_ioctl+0x3cb/0x5f0 [ 40.525685][ C2] ? do_user_addr_fault+0x325/0xe30 [ 40.525689][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 40.525690][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 40.525694][ C2] ? lockdep_hardirqs_on+0x8c/0x130 [ 40.525695][ C2] ? do_syscall_64+0x82/0x590 [ 40.525696][ C2] do_syscall_64+0x117/0x590 [ 40.525698][ C2] ? trace_hardirqs_off+0xd/0x30 [ 40.525699][ C2] ? exc_page_fault+0xee/0x100 [ 40.525701][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.525702][ C2] RIP: 0033:0x7feaa7c2a08e [ 40.525705][ C2] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa [ 40.525706][ C2] RSP: 002b:00007ffd66779ea0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 40.525709][ C2] RAX: ffffffffffffffda RBX: 000055ed3efe4b22 RCX: 00007feaa7c2a08e [ 40.525710][ C2] RDX: 0000000000000062 RSI: 000055ed3efe4b22 RDI: 0000000000000005 [ 40.525711][ C2] RBP: 00007ffd66779eb0 R08: 00007ffd66779f00 R09: 0000000000000014 [ 40.525712][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 000055ed3efe4830 [ 40.525713][ C2] R13: 0000000000000062 R14: 0000000000000005 R15: 000055ed3efe4830 [ 40.525715][ C2]