[ 9.011279][ T186] ip (186) used greatest stack depth: 24320 bytes left [ 11.452661][ T283] 8021q: 802.1Q VLAN Support v1.8 [ 11.631517][ T290] gre: GRE over IPv4 demultiplexer driver [ 11.661012][ T290] ip6_gre: GRE over IPv6 tunneling driver [ 11.781730][ T295] ip (295) used greatest stack depth: 23936 bytes left [ 12.722859][ T328] ip (328) used greatest stack depth: 23776 bytes left [ 18.522560][ T381] GACT probability NOT on [ 18.631813][ C2] [ 18.631908][ C2] ======================================================== [ 18.632077][ C2] WARNING: possible irq lock inversion dependency detected [ 18.632232][ C2] 7.1.0-rc5-virtme #1 Not tainted [ 18.632334][ C2] -------------------------------------------------------- [ 18.632484][ C2] mausezahn/386 just changed the state of lock: [ 18.632610][ C2] ff1100000b905578 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 18.632798][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 18.632951][ C2] (acaddr_hash_lock){+.+.}-{3:3} [ 18.632954][ C2] [ 18.632954][ C2] [ 18.632954][ C2] and interrupts could create inverse lock ordering between them. [ 18.632954][ C2] [ 18.633327][ C2] [ 18.633327][ C2] other info that might help us debug this: [ 18.633477][ C2] Possible interrupt unsafe locking scenario: [ 18.633477][ C2] [ 18.633632][ C2] CPU0 CPU1 [ 18.633732][ C2] ---- ---- [ 18.633835][ C2] lock(acaddr_hash_lock); [ 18.633939][ C2] local_irq_disable(); [ 18.634062][ C2] lock(&ndev->lock); [ 18.634187][ C2] lock(acaddr_hash_lock); [ 18.634311][ C2] [ 18.634387][ C2] lock(&ndev->lock); [ 18.634464][ C2] [ 18.634464][ C2] *** DEADLOCK *** [ 18.634464][ C2] [ 18.634611][ C2] 6 locks held by mausezahn/386: [ 18.634711][ C2] #0: ffffffff92d77d20 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 18.634897][ C2] #1: ffffffff92d77d20 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 18.635074][ C2] #2: ffffffff92d77d20 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 18.635252][ C2] #3: ffffffff92d77cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1fe/0x1b60 [ 18.635428][ C2] #4: ffffffff92d77d20 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 18.635604][ C2] #5: ffffffff92d77d20 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 18.635781][ C2] [ 18.635781][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 18.635961][ C2] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 18.636066][ C2] HARDIRQ-ON-W at: [ 18.636145][ C2] __lock_acquire+0x378/0xc10 [ 18.636277][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.636402][ C2] _raw_spin_lock+0x33/0x40 [ 18.636532][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 18.636684][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 18.636810][ C2] addrconf_join_anycast+0x1bc/0x260 [ 18.636939][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 18.637064][ C2] addrconf_dad_completed+0x14b/0xe10 [ 18.637217][ C2] addrconf_dad_begin+0x2e1/0x540 [ 18.637342][ C2] addrconf_dad_work+0x170/0x930 [ 18.637468][ C2] process_one_work+0xdf8/0x1410 [ 18.637594][ C2] worker_thread+0x4f1/0xd60 [ 18.637719][ C2] kthread+0x367/0x460 [ 18.637853][ C2] ret_from_fork+0x474/0x6b0 [ 18.637980][ C2] ret_from_fork_asm+0x11/0x20 [ 18.638107][ C2] SOFTIRQ-ON-W at: [ 18.638184][ C2] __lock_acquire+0x378/0xc10 [ 18.638310][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.638435][ C2] _raw_spin_lock+0x33/0x40 [ 18.638563][ C2] __ipv6_dev_ac_dec+0x236/0x5d0 [ 18.638688][ C2] addrconf_leave_anycast+0x1bc/0x260 [ 18.638843][ C2] __ipv6_ifa_notify+0x6b4/0xad0 [ 18.638969][ C2] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 18.639120][ C2] addrconf_notify+0x339/0xf30 [ 18.639248][ C2] notifier_call_chain+0xb0/0x320 [ 18.639374][ C2] __netdev_upper_dev_link+0x3a5/0x590 [ 18.639526][ C2] netdev_master_upper_dev_link+0x86/0xb0 [ 18.639678][ C2] vrf_add_slave+0xdd/0x210 [vrf] [ 18.639805][ C2] do_set_master+0x357/0x580 [ 18.639938][ C2] do_setlink.isra.0+0xa31/0x2750 [ 18.640063][ C2] rtnl_newlink+0x8d1/0xef0 [ 18.640188][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.640315][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 18.640443][ C2] netlink_unicast+0x486/0x750 [ 18.640567][ C2] netlink_sendmsg+0x735/0xc60 [ 18.640695][ C2] ____sys_sendmsg+0x419/0x850 [ 18.640822][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 18.640951][ C2] __sys_sendmsg+0x145/0x1f0 [ 18.641076][ C2] do_syscall_64+0x117/0x590 [ 18.641204][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.641357][ C2] INITIAL USE at: [ 18.641433][ C2] __lock_acquire+0x378/0xc10 [ 18.641558][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.641685][ C2] _raw_spin_lock+0x33/0x40 [ 18.641811][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 18.641967][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 18.642093][ C2] addrconf_join_anycast+0x1bc/0x260 [ 18.642219][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 18.642343][ C2] addrconf_dad_completed+0x14b/0xe10 [ 18.642469][ C2] addrconf_dad_begin+0x2e1/0x540 [ 18.642594][ C2] addrconf_dad_work+0x170/0x930 [ 18.642722][ C2] process_one_work+0xdf8/0x1410 [ 18.642850][ C2] worker_thread+0x4f1/0xd60 [ 18.642977][ C2] kthread+0x367/0x460 [ 18.643103][ C2] ret_from_fork+0x474/0x6b0 [ 18.643231][ C2] ret_from_fork_asm+0x11/0x20 [ 18.643358][ C2] } [ 18.643410][ C2] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 18.643563][ C2] ... acquired at: [ 18.643641][ C2] __lock_acquire+0x508/0xc10 [ 18.643745][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.643848][ C2] _raw_spin_lock+0x33/0x40 [ 18.643949][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 18.644075][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 18.644175][ C2] addrconf_join_anycast+0x1bc/0x260 [ 18.644276][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 18.644376][ C2] addrconf_dad_completed+0x14b/0xe10 [ 18.644477][ C2] addrconf_dad_begin+0x2e1/0x540 [ 18.644579][ C2] addrconf_dad_work+0x170/0x930 [ 18.644681][ C2] process_one_work+0xdf8/0x1410 [ 18.644782][ C2] worker_thread+0x4f1/0xd60 [ 18.644888][ C2] kthread+0x367/0x460 [ 18.644964][ C2] ret_from_fork+0x474/0x6b0 [ 18.645065][ C2] ret_from_fork_asm+0x11/0x20 [ 18.645166][ C2] [ 18.645219][ C2] -> (&ndev->lock){++.-}-{3:3} { [ 18.645323][ C2] HARDIRQ-ON-W at: [ 18.645399][ C2] __lock_acquire+0x378/0xc10 [ 18.645526][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.645651][ C2] _raw_write_lock_bh+0x38/0x50 [ 18.645777][ C2] addrconf_permanent_addr+0x108/0x9c0 [ 18.645909][ C2] addrconf_notify+0x151/0xf30 [ 18.646035][ C2] notifier_call_chain+0xb0/0x320 [ 18.646164][ C2] __dev_notify_flags+0xde/0x280 [ 18.646288][ C2] netif_change_flags+0xfe/0x190 [ 18.646414][ C2] do_setlink.isra.0+0x1cc3/0x2750 [ 18.646538][ C2] rtnl_newlink+0x8d1/0xef0 [ 18.646665][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.646792][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 18.646926][ C2] netlink_unicast+0x486/0x750 [ 18.647052][ C2] netlink_sendmsg+0x735/0xc60 [ 18.647179][ C2] ____sys_sendmsg+0x419/0x850 [ 18.647305][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 18.647432][ C2] __sys_sendmsg+0x145/0x1f0 [ 18.647560][ C2] do_syscall_64+0x117/0x590 [ 18.647690][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.647881][ C2] HARDIRQ-ON-R at: [ 18.647957][ C2] __lock_acquire+0x378/0xc10 [ 18.648084][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.648209][ C2] _raw_read_lock_bh+0x44/0x80 [ 18.648337][ C2] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 18.648491][ C2] inet6_fill_link_af+0x5c/0xe0 [ 18.648616][ C2] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 18.648767][ C2] rtnl_getlink+0x9c9/0xeb0 [ 18.648895][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.649021][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 18.649150][ C2] netlink_unicast+0x486/0x750 [ 18.649277][ C2] netlink_sendmsg+0x735/0xc60 [ 18.649403][ C2] ____sys_sendmsg+0x419/0x850 [ 18.649530][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 18.649656][ C2] __sys_sendmsg+0x145/0x1f0 [ 18.649782][ C2] do_syscall_64+0x117/0x590 [ 18.649914][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.650063][ C2] IN-SOFTIRQ-R at: [ 18.650140][ C2] __lock_acquire+0x378/0xc10 [ 18.650267][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.650395][ C2] _raw_read_lock_bh+0x44/0x80 [ 18.650521][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 18.650650][ C2] ndisc_send_ns+0xf3/0x120 [ 18.650776][ C2] ndisc_solicit+0x314/0x480 [ 18.650906][ C2] neigh_probe+0xb3/0x100 [ 18.651034][ C2] __neigh_event_send+0x802/0x1070 [ 18.651161][ C2] neigh_resolve_output+0xbe/0x140 [ 18.651288][ C2] ip6_finish_output2+0x423/0x1300 [ 18.651413][ C2] ip6_finish_output+0x646/0xda0 [ 18.651538][ C2] ip6_output+0x23f/0x7f0 [ 18.651664][ C2] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 18.651816][ C2] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 18.651950][ C2] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 18.652103][ C2] dev_hard_start_xmit+0xf8/0x690 [ 18.652230][ C2] __dev_queue_xmit+0xbf4/0x1b60 [ 18.652355][ C2] ip_finish_output2+0x5b9/0x1bc0 [ 18.652482][ C2] ip_output+0x1ca/0x660 [ 18.652610][ C2] ip_rcv+0xdc/0x3d0 [ 18.652713][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 18.652868][ C2] process_backlog+0x2bc/0x1490 [ 18.652994][ C2] __napi_poll+0xa7/0x3b0 [ 18.653120][ C2] net_rx_action+0x513/0xf50 [ 18.653249][ C2] handle_softirqs+0x1d8/0x940 [ 18.653377][ C2] do_softirq+0xa9/0xe0 [ 18.653504][ C2] __local_bh_enable_ip+0x113/0x140 [ 18.653630][ C2] __dev_queue_xmit+0x95b/0x1b60 [ 18.653755][ C2] packet_snd+0xfad/0x1990 [ 18.653887][ C2] __sys_sendto+0x2c9/0x400 [ 18.654012][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 18.654136][ C2] do_syscall_64+0x117/0x590 [ 18.654263][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.654414][ C2] INITIAL USE at: [ 18.654490][ C2] __lock_acquire+0x378/0xc10 [ 18.654616][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.654741][ C2] _raw_write_lock_bh+0x38/0x50 [ 18.654870][ C2] addrconf_permanent_addr+0x108/0x9c0 [ 18.654998][ C2] addrconf_notify+0x151/0xf30 [ 18.655126][ C2] notifier_call_chain+0xb0/0x320 [ 18.655252][ C2] __dev_notify_flags+0xde/0x280 [ 18.655442][ C2] netif_change_flags+0xfe/0x190 [ 18.655568][ C2] do_setlink.isra.0+0x1cc3/0x2750 [ 18.655696][ C2] rtnl_newlink+0x8d1/0xef0 [ 18.655822][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.656012][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 18.656162][ C2] netlink_unicast+0x486/0x750 [ 18.656288][ C2] netlink_sendmsg+0x735/0xc60 [ 18.656477][ C2] ____sys_sendmsg+0x419/0x850 [ 18.656603][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 18.656728][ C2] __sys_sendmsg+0x145/0x1f0 [ 18.656915][ C2] do_syscall_64+0x117/0x590 [ 18.657039][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.657189][ C2] INITIAL READ USE at: [ 18.657327][ C2] __lock_acquire+0x378/0xc10 [ 18.657457][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.657584][ C2] _raw_read_lock_bh+0x44/0x80 [ 18.657709][ C2] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 18.657922][ C2] inet6_fill_link_af+0x5c/0xe0 [ 18.658045][ C2] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 18.658257][ C2] rtnl_getlink+0x9c9/0xeb0 [ 18.658381][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.658507][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 18.658631][ C2] netlink_unicast+0x486/0x750 [ 18.658818][ C2] netlink_sendmsg+0x735/0xc60 [ 18.658946][ C2] ____sys_sendmsg+0x419/0x850 [ 18.659071][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 18.659257][ C2] __sys_sendmsg+0x145/0x1f0 [ 18.659380][ C2] do_syscall_64+0x117/0x590 [ 18.659507][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.659719][ C2] } [ 18.659769][ C2] ... key at: [] __key.37+0x0/0x40 [ 18.659923][ C2] ... acquired at: [ 18.659996][ C2] mark_lock+0x1d7/0xa00 [ 18.660158][ C2] mark_usage+0x42/0x170 [ 18.660257][ C2] __lock_acquire+0x378/0xc10 [ 18.660355][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.660456][ C2] _raw_read_lock_bh+0x44/0x80 [ 18.660617][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 18.660718][ C2] ndisc_send_ns+0xf3/0x120 [ 18.660819][ C2] ndisc_solicit+0x314/0x480 [ 18.660924][ C2] neigh_probe+0xb3/0x100 [ 18.661088][ C2] __neigh_event_send+0x802/0x1070 [ 18.661188][ C2] neigh_resolve_output+0xbe/0x140 [ 18.661288][ C2] ip6_finish_output2+0x423/0x1300 [ 18.661391][ C2] ip6_finish_output+0x646/0xda0 [ 18.661552][ C2] ip6_output+0x23f/0x7f0 [ 18.661651][ C2] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 18.661776][ C2] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 18.661879][ C2] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 18.662063][ C2] dev_hard_start_xmit+0xf8/0x690 [ 18.662164][ C2] __dev_queue_xmit+0xbf4/0x1b60 [ 18.662263][ C2] ip_finish_output2+0x5b9/0x1bc0 [ 18.662424][ C2] ip_output+0x1ca/0x660 [ 18.662524][ C2] ip_rcv+0xdc/0x3d0 [ 18.662598][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 18.662721][ C2] process_backlog+0x2bc/0x1490 [ 18.662882][ C2] __napi_poll+0xa7/0x3b0 [ 18.662983][ C2] net_rx_action+0x513/0xf50 [ 18.663081][ C2] handle_softirqs+0x1d8/0x940 [ 18.663180][ C2] do_softirq+0xa9/0xe0 [ 18.663254][ C2] __local_bh_enable_ip+0x113/0x140 [ 18.663413][ C2] __dev_queue_xmit+0x95b/0x1b60 [ 18.663513][ C2] packet_snd+0xfad/0x1990 [ 18.663614][ C2] __sys_sendto+0x2c9/0x400 [ 18.663715][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 18.663885][ C2] do_syscall_64+0x117/0x590 [ 18.663984][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.664110][ C2] [ 18.664160][ C2] [ 18.664160][ C2] stack backtrace: [ 18.664345][ C2] CPU: 2 UID: 0 PID: 386 Comm: mausezahn Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 18.664349][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.664351][ C2] Call Trace: [ 18.664352][ C2] [ 18.664354][ C2] dump_stack_lvl+0x6f/0xa0 [ 18.664358][ C2] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 18.664362][ C2] mark_lock_irq+0x989/0x9c0 [ 18.664365][ C2] mark_lock+0x1d7/0xa00 [ 18.664366][ C2] mark_usage+0x42/0x170 [ 18.664368][ C2] __lock_acquire+0x378/0xc10 [ 18.664369][ C2] ? __lock_acquire+0x508/0xc10 [ 18.664371][ C2] lock_acquire.part.0+0xbc/0x260 [ 18.664372][ C2] ? ipv6_get_lladdr+0xa8/0x3f0 [ 18.664375][ C2] ? rcu_is_watching+0x15/0xd0 [ 18.664378][ C2] ? lock_acquire+0x134/0x160 [ 18.664379][ C2] _raw_read_lock_bh+0x44/0x80 [ 18.664381][ C2] ? ipv6_get_lladdr+0xa8/0x3f0 [ 18.664383][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 18.664385][ C2] ndisc_send_ns+0xf3/0x120 [ 18.664386][ C2] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 18.664389][ C2] ? ndisc_parse_options+0x30/0x30 [ 18.664390][ C2] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 18.664392][ C2] ndisc_solicit+0x314/0x480 [ 18.664394][ C2] ? ndisc_send_ns+0x120/0x120 [ 18.664396][ C2] ? neigh_probe+0x62/0x100 [ 18.664398][ C2] neigh_probe+0xb3/0x100 [ 18.664400][ C2] __neigh_event_send+0x802/0x1070 [ 18.664402][ C2] ? warn_bogus_irq_restore+0x1/0x20 [ 18.664404][ C2] ? ___neigh_create+0x811/0x1070 [ 18.664407][ C2] neigh_resolve_output+0xbe/0x140 [ 18.664409][ C2] ip6_finish_output2+0x423/0x1300 [ 18.664411][ C2] ? ip6_xmit+0x2000/0x2000 [ 18.664412][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 18.664414][ C2] ? find_held_lock+0x2b/0x80 [ 18.664417][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 18.664418][ C2] ? ip6_mtu+0x15d/0x310 [ 18.664421][ C2] ip6_finish_output+0x646/0xda0 [ 18.664423][ C2] ip6_output+0x23f/0x7f0 [ 18.664425][ C2] ? ip6_finish_output+0xda0/0xda0 [ 18.664426][ C2] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 18.664430][ C2] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 18.664433][ C2] ? ip_route_input+0x420/0x420 [ip6_tunnel] [ 18.664435][ C2] ? pskb_expand_head+0x4ac/0xf50 [ 18.664438][ C2] ? __lock_acquire+0x508/0xc10 [ 18.664440][ C2] ? __pskb_copy_fclone+0x1080/0x1080 [ 18.664442][ C2] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 18.664444][ C2] ? __ipv6_chk_addr_and_flags+0x230/0x5f0 [ 18.664447][ C2] ? gre_build_header+0xa70/0xa70 [ip6_gre] [ 18.664449][ C2] ? ip6_tnl_xmit_ctl+0x21e/0x390 [ip6_tunnel] [ 18.664451][ C2] ? __asan_memcpy+0x3c/0x60 [ 18.664455][ C2] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 18.664458][ C2] ? __gre6_xmit+0x1910/0x1910 [ip6_gre] [ 18.664459][ C2] ? sock_def_readable+0x156/0x490 [ 18.664461][ C2] ? find_held_lock+0x2b/0x80 [ 18.664464][ C2] ? dev_queue_xmit_nit+0x642/0x9e0 [ 18.664467][ C2] dev_hard_start_xmit+0xf8/0x690 [ 18.664469][ C2] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 18.664471][ C2] ? rcu_is_watching+0x15/0xd0 [ 18.664473][ C2] __dev_queue_xmit+0xbf4/0x1b60 [ 18.664476][ C2] ? __lock_acquire+0x508/0xc10 [ 18.664478][ C2] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.664480][ C2] ? find_held_lock+0x2b/0x80 [ 18.664482][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 18.664484][ C2] ? ___neigh_create+0x811/0x1070 [ 18.664486][ C2] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 18.664488][ C2] ip_finish_output2+0x5b9/0x1bc0 [ 18.664490][ C2] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 18.664493][ C2] ? ip4_dst_hoplimit+0x320/0x320 [ 18.664495][ C2] ? rcu_is_watching+0x15/0xd0 [ 18.664497][ C2] ip_output+0x1ca/0x660 [ 18.664499][ C2] ? ip_finish_output+0x460/0x460 [ 18.664500][ C2] ? ip4_frag_init+0x720/0x720 [ 18.664502][ C2] ? ip_forward+0xfa7/0x1570 [ 18.664505][ C2] ? process_backlog+0x561/0x1490 [ 18.664506][ C2] ip_rcv+0xdc/0x3d0 [ 18.664508][ C2] ? ip_local_deliver+0x4c0/0x4c0 [ 18.664510][ C2] ? mark_usage+0x61/0x170 [ 18.664511][ C2] ? __lock_acquire+0x508/0xc10 [ 18.664513][ C2] ? init_data_structures_once.part.0+0x1a7/0x450 [ 18.664515][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 18.664516][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 18.664517][ C2] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 18.664519][ C2] ? rcu_is_watching+0x15/0xd0 [ 18.664522][ C2] process_backlog+0x2bc/0x1490 [ 18.664524][ C2] __napi_poll+0xa7/0x3b0 [ 18.664525][ C2] net_rx_action+0x513/0xf50 [ 18.664527][ C2] ? __napi_poll+0x3b0/0x3b0 [ 18.664529][ C2] ? find_held_lock+0x2b/0x80 [ 18.664532][ C2] ? clockevents_program_event+0x307/0x7e0 [ 18.664535][ C2] ? rcu_is_watching+0x15/0xd0 [ 18.664536][ C2] ? rcu_is_watching+0x15/0xd0 [ 18.664538][ C2] ? rcu_is_watching+0x15/0xd0 [ 18.664540][ C2] handle_softirqs+0x1d8/0x940 [ 18.664542][ C2] ? rcu_is_watching+0x15/0xd0 [ 18.664544][ C2] ? _local_bh_enable+0xd0/0xd0 [ 18.664545][ C2] ? trace_csd_function_exit+0xb3/0x1a0 [ 18.664547][ C2] ? rcu_is_watching+0x15/0xd0 [ 18.664549][ C2] do_softirq+0xa9/0xe0 [ 18.664551][ C2] [ 18.664551][ C2] [ 18.664552][ C2] ? __dev_queue_xmit+0x946/0x1b60 [ 18.664554][ C2] __local_bh_enable_ip+0x113/0x140 [ 18.664555][ C2] __dev_queue_xmit+0x95b/0x1b60 [ 18.664557][ C2] ? _copy_from_iter+0x1bb/0x1810 [ 18.664561][ C2] ? _copy_from_iter_flushcache+0x1970/0x1970 [ 18.664563][ C2] ? net_dim+0x730/0xd70 [ 18.664565][ C2] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.664569][ C2] ? packet_release+0xc70/0xc70 [ 18.664571][ C2] packet_snd+0xfad/0x1990 [ 18.664574][ C2] ? tpacket_snd+0x19e0/0x19e0 [ 18.664576][ C2] ? __might_fault+0x97/0x140 [ 18.664579][ C2] ? __might_fault+0x97/0x140 [ 18.664580][ C2] ? __might_fault+0x97/0x140 [ 18.664582][ C2] __sys_sendto+0x2c9/0x400 [ 18.664584][ C2] ? __ia32_sys_getpeername+0xd0/0xd0 [ 18.664587][ C2] ? sock_ioctl+0x3cb/0x5f0 [ 18.664590][ C2] ? do_user_addr_fault+0x325/0xe30 [ 18.664594][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 18.664596][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 18.664599][ C2] ? lockdep_hardirqs_on+0x8c/0x130 [ 18.664601][ C2] ? do_syscall_64+0x82/0x590 [ 18.664602][ C2] do_syscall_64+0x117/0x590 [ 18.664603][ C2] ? trace_hardirqs_off+0xd/0x30 [ 18.664605][ C2] ? exc_page_fault+0xee/0x100 [ 18.664606][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.664608][ C2] RIP: 0033:0x7f8d1730d08e [ 18.664611][ 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 [ 18.664613][ C2] RSP: 002b:00007ffd952b2b80 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 18.664616][ C2] RAX: ffffffffffffffda RBX: 00005566d736bb22 RCX: 00007f8d1730d08e [ 18.664617][ C2] RDX: 0000000000000062 RSI: 00005566d736bb22 RDI: 0000000000000005 [ 18.664618][ C2] RBP: 00007ffd952b2b90 R08: 00007ffd952b2be0 R09: 0000000000000014 [ 18.664619][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00005566d736b830 [ 18.664620][ C2] R13: 0000000000000062 R14: 0000000000000005 R15: 00005566d736b830 [ 18.664622][ C2]