[ 9.045296][ T214] ip (214) used greatest stack depth: 24144 bytes left [ 44.440119][ T381] ip (381) used greatest stack depth: 23872 bytes left [ 68.137992][ T1396] mpls_gso: MPLS GSO support [ 293.687281][ T9503] ip (9503) used greatest stack depth: 23496 bytes left [ 408.876081][T13229] ip (13229) used greatest stack depth: 23344 bytes left [ 715.474465][ C2] [ 715.474580][ C2] ======================================================== [ 715.474791][ C2] WARNING: possible irq lock inversion dependency detected [ 715.474999][ C2] 7.1.0-rc5-virtme #1 Not tainted [ 715.475140][ C2] -------------------------------------------------------- [ 715.475344][ C2] ping/22282 just changed the state of lock: [ 715.475513][ C2] ff1100000b3b5578 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 715.475776][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 715.475989][ C2] (acaddr_hash_lock){+.+.}-{3:3} [ 715.475993][ C2] [ 715.475993][ C2] [ 715.475993][ C2] and interrupts could create inverse lock ordering between them. [ 715.475993][ C2] [ 715.476513][ C2] [ 715.476513][ C2] other info that might help us debug this: [ 715.476713][ C2] Possible interrupt unsafe locking scenario: [ 715.476713][ C2] [ 715.476920][ C2] CPU0 CPU1 [ 715.477055][ C2] ---- ---- [ 715.477195][ C2] lock(acaddr_hash_lock); [ 715.477338][ C2] local_irq_disable(); [ 715.477509][ C2] lock(&ndev->lock); [ 715.477693][ C2] lock(acaddr_hash_lock); [ 715.477875][ C2] [ 715.477982][ C2] lock(&ndev->lock); [ 715.478092][ C2] [ 715.478092][ C2] *** DEADLOCK *** [ 715.478092][ C2] [ 715.478292][ C2] 6 locks held by ping/22282: [ 715.478430][ C2] #0: ff1100000ba0ad10 (sk_lock-AF_INET6){+.+.}-{0:0}, at: rawv6_sendmsg+0xf1c/0x1a50 [ 715.478671][ C2] #1: ffffffffb0b8bda0 (rcu_read_lock){....}-{1:3}, at: ip6_send_skb+0xa2/0x350 [ 715.478920][ C2] #2: ffffffffb0b8bda0 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 715.479169][ C2] #3: ffffffffb0b8bda0 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 715.479417][ C2] #4: ffffffffb0b8bda0 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 715.479655][ C2] #5: ffffffffb0b8bda0 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 715.479899][ C2] [ 715.479899][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 715.480142][ C2] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 715.480289][ C2] HARDIRQ-ON-W at: [ 715.480398][ C2] __lock_acquire+0x378/0xc10 [ 715.480577][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.480756][ C2] _raw_spin_lock+0x33/0x40 [ 715.480939][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 715.481152][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 715.481329][ C2] addrconf_join_anycast+0x1bc/0x260 [ 715.481505][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 715.481680][ C2] addrconf_dad_completed+0x14b/0xe10 [ 715.481889][ C2] addrconf_dad_begin+0x2e1/0x540 [ 715.482062][ C2] addrconf_dad_work+0x170/0x930 [ 715.482232][ C2] process_one_work+0xdf8/0x1410 [ 715.482406][ C2] worker_thread+0x4f1/0xd60 [ 715.482578][ C2] kthread+0x367/0x460 [ 715.482755][ C2] ret_from_fork+0x474/0x6b0 [ 715.482939][ C2] ret_from_fork_asm+0x11/0x20 [ 715.483114][ C2] SOFTIRQ-ON-W at: [ 715.483219][ C2] __lock_acquire+0x378/0xc10 [ 715.483389][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.483558][ C2] _raw_spin_lock+0x33/0x40 [ 715.483730][ C2] __ipv6_dev_ac_dec+0x236/0x5d0 [ 715.483913][ C2] addrconf_leave_anycast+0x1bc/0x260 [ 715.484125][ C2] addrconf_ifdown.isra.0+0xded/0x15f0 [ 715.484347][ C2] addrconf_notify+0x2c8/0xf30 [ 715.484524][ C2] notifier_call_chain+0xb0/0x320 [ 715.484702][ C2] __dev_notify_flags+0x165/0x280 [ 715.484891][ C2] netif_change_flags+0xfe/0x190 [ 715.485068][ C2] do_setlink.isra.0+0x1d25/0x2a60 [ 715.485242][ C2] rtnl_newlink+0x8d1/0xee0 [ 715.485414][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 715.485588][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 715.485770][ C2] netlink_unicast+0x486/0x750 [ 715.485952][ C2] netlink_sendmsg+0x735/0xc60 [ 715.486122][ C2] ____sys_sendmsg+0x419/0x850 [ 715.486295][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 715.486473][ C2] __sys_sendmsg+0x145/0x1f0 [ 715.486651][ C2] do_syscall_64+0x117/0x590 [ 715.486827][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 715.487043][ C2] INITIAL USE at: [ 715.487150][ C2] __lock_acquire+0x378/0xc10 [ 715.487322][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.487491][ C2] _raw_spin_lock+0x33/0x40 [ 715.487665][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 715.487880][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 715.488049][ C2] addrconf_join_anycast+0x1bc/0x260 [ 715.488226][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 715.488402][ C2] addrconf_dad_completed+0x14b/0xe10 [ 715.488582][ C2] addrconf_dad_begin+0x2e1/0x540 [ 715.488762][ C2] addrconf_dad_work+0x170/0x930 [ 715.488945][ C2] process_one_work+0xdf8/0x1410 [ 715.489121][ C2] worker_thread+0x4f1/0xd60 [ 715.489291][ C2] kthread+0x367/0x460 [ 715.489461][ C2] ret_from_fork+0x474/0x6b0 [ 715.489635][ C2] ret_from_fork_asm+0x11/0x20 [ 715.489804][ C2] } [ 715.489882][ C2] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 715.490095][ C2] ... acquired at: [ 715.490201][ C2] __lock_acquire+0x508/0xc10 [ 715.490337][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.490480][ C2] _raw_spin_lock+0x33/0x40 [ 715.490614][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 715.490784][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 715.490924][ C2] addrconf_join_anycast+0x1bc/0x260 [ 715.491062][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 715.491204][ C2] addrconf_dad_completed+0x14b/0xe10 [ 715.491344][ C2] addrconf_dad_begin+0x2e1/0x540 [ 715.491486][ C2] addrconf_dad_work+0x170/0x930 [ 715.491619][ C2] process_one_work+0xdf8/0x1410 [ 715.491759][ C2] worker_thread+0x4f1/0xd60 [ 715.491901][ C2] kthread+0x367/0x460 [ 715.492005][ C2] ret_from_fork+0x474/0x6b0 [ 715.492146][ C2] ret_from_fork_asm+0x11/0x20 [ 715.492284][ C2] [ 715.492356][ C2] -> (&ndev->lock){++.-}-{3:3} { [ 715.492502][ C2] HARDIRQ-ON-W at: [ 715.492610][ C2] __lock_acquire+0x378/0xc10 [ 715.492786][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.493001][ C2] _raw_write_lock_bh+0x38/0x50 [ 715.493180][ C2] addrconf_permanent_addr+0x108/0x9c0 [ 715.493355][ C2] addrconf_notify+0x151/0xf30 [ 715.493530][ C2] notifier_call_chain+0xb0/0x320 [ 715.493705][ C2] __dev_notify_flags+0xde/0x280 [ 715.493881][ C2] netif_change_flags+0xfe/0x190 [ 715.494056][ C2] do_setlink.isra.0+0x1d25/0x2a60 [ 715.494227][ C2] rtnl_newlink+0x8d1/0xee0 [ 715.494401][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 715.494574][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 715.494745][ C2] netlink_unicast+0x486/0x750 [ 715.494927][ C2] netlink_sendmsg+0x735/0xc60 [ 715.495104][ C2] ____sys_sendmsg+0x419/0x850 [ 715.495275][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 715.495451][ C2] __sys_sendmsg+0x145/0x1f0 [ 715.495620][ C2] do_syscall_64+0x117/0x590 [ 715.495792][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 715.496009][ C2] HARDIRQ-ON-R at: [ 715.496115][ C2] __lock_acquire+0x378/0xc10 [ 715.496288][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.496464][ C2] _raw_read_lock_bh+0x44/0x80 [ 715.496641][ C2] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 715.496850][ C2] inet6_fill_link_af+0x5c/0xe0 [ 715.497037][ C2] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 715.497248][ C2] rtmsg_ifinfo_build_skb+0x144/0x250 [ 715.497427][ C2] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 715.497635][ C2] rtmsg_ifinfo+0x5c/0xb0 [ 715.497808][ C2] register_netdevice+0x1526/0x1bc0 [ 715.497987][ C2] register_netdev+0x23/0x40 [ 715.498162][ C2] vti6_init_net+0x280/0x3c0 [ 715.498338][ C2] ops_init+0x187/0x560 [ 715.498515][ C2] register_pernet_operations+0x395/0x8e0 [ 715.498724][ C2] register_pernet_device+0x2c/0x60 [ 715.498908][ C2] vti6_tunnel_init+0x17/0x100 [ 715.499088][ C2] do_one_initcall+0x12b/0x520 [ 715.499262][ C2] kernel_init_freeable+0x596/0x630 [ 715.499454][ C2] kernel_init+0x1e/0x170 [ 715.499630][ C2] ret_from_fork+0x474/0x6b0 [ 715.499807][ C2] ret_from_fork_asm+0x11/0x20 [ 715.499989][ C2] IN-SOFTIRQ-R at: [ 715.500095][ C2] __lock_acquire+0x378/0xc10 [ 715.500272][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.500445][ C2] _raw_read_lock_bh+0x44/0x80 [ 715.500622][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 715.500799][ C2] ndisc_send_ns+0xf3/0x120 [ 715.500980][ C2] ndisc_solicit+0x314/0x480 [ 715.501157][ C2] neigh_probe+0xb3/0x100 [ 715.501353][ C2] __neigh_event_send+0x802/0x1070 [ 715.501531][ C2] neigh_resolve_output+0xbe/0x140 [ 715.501713][ C2] ip6_finish_output2+0x488/0x1310 [ 715.501896][ C2] ip6_finish_output+0x701/0xe80 [ 715.502073][ C2] ip6_output+0x23f/0x7f0 [ 715.502238][ C2] ip6_forward+0x1165/0x2d40 [ 715.502370][ C2] ipv6_rcv+0x3c1/0x5a0 [ 715.502512][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 715.502666][ C2] process_backlog+0x2bc/0x1490 [ 715.502786][ C2] __napi_poll+0xa7/0x3b0 [ 715.502913][ C2] net_rx_action+0x513/0xf50 [ 715.503037][ C2] handle_softirqs+0x1d8/0x940 [ 715.503159][ C2] do_softirq+0xa9/0xe0 [ 715.503282][ C2] __local_bh_enable_ip+0x113/0x140 [ 715.503401][ C2] __neigh_event_send+0x30a/0x1070 [ 715.503599][ C2] neigh_resolve_output+0xbe/0x140 [ 715.503720][ C2] ip6_finish_output2+0x488/0x1310 [ 715.503848][ C2] ip6_finish_output+0x701/0xe80 [ 715.504114][ C2] ip6_output+0x23f/0x7f0 [ 715.504235][ C2] ip6_send_skb+0xee/0x350 [ 715.504356][ C2] rawv6_push_pending_frames+0x4cb/0xa90 [ 715.504569][ C2] rawv6_sendmsg+0x1434/0x1a50 [ 715.504741][ C2] __sys_sendto+0x2c9/0x400 [ 715.504919][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 715.505188][ C2] do_syscall_64+0x117/0x590 [ 715.505368][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 715.505578][ C2] INITIAL USE at: [ 715.505686][ C2] __lock_acquire+0x378/0xc10 [ 715.505969][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.506151][ C2] _raw_write_lock_bh+0x38/0x50 [ 715.506329][ C2] addrconf_permanent_addr+0x108/0x9c0 [ 715.506604][ C2] addrconf_notify+0x151/0xf30 [ 715.506779][ C2] notifier_call_chain+0xb0/0x320 [ 715.506959][ C2] __dev_notify_flags+0xde/0x280 [ 715.507237][ C2] netif_change_flags+0xfe/0x190 [ 715.507429][ C2] do_setlink.isra.0+0x1d25/0x2a60 [ 715.507577][ C2] rtnl_newlink+0x8d1/0xee0 [ 715.507755][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 715.507883][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 715.508004][ C2] netlink_unicast+0x486/0x750 [ 715.508125][ C2] netlink_sendmsg+0x735/0xc60 [ 715.508247][ C2] ____sys_sendmsg+0x419/0x850 [ 715.508366][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 715.508491][ C2] __sys_sendmsg+0x145/0x1f0 [ 715.508671][ C2] do_syscall_64+0x117/0x590 [ 715.508792][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 715.508941][ C2] INITIAL READ USE at: [ 715.509073][ C2] __lock_acquire+0x378/0xc10 [ 715.509192][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.509311][ C2] _raw_read_lock_bh+0x44/0x80 [ 715.509495][ C2] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 715.509637][ C2] inet6_fill_link_af+0x5c/0xe0 [ 715.509759][ C2] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 715.509963][ C2] rtmsg_ifinfo_build_skb+0x144/0x250 [ 715.510105][ C2] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 715.510248][ C2] rtmsg_ifinfo+0x5c/0xb0 [ 715.510426][ C2] register_netdevice+0x1526/0x1bc0 [ 715.510630][ C2] register_netdev+0x23/0x40 [ 715.510808][ C2] vti6_init_net+0x280/0x3c0 [ 715.511100][ C2] ops_init+0x187/0x560 [ 715.511282][ C2] register_pernet_operations+0x395/0x8e0 [ 715.511497][ C2] register_pernet_device+0x2c/0x60 [ 715.511812][ C2] vti6_tunnel_init+0x17/0x100 [ 715.511978][ C2] do_one_initcall+0x12b/0x520 [ 715.512098][ C2] kernel_init_freeable+0x596/0x630 [ 715.512298][ C2] kernel_init+0x1e/0x170 [ 715.512418][ C2] ret_from_fork+0x474/0x6b0 [ 715.512541][ C2] ret_from_fork_asm+0x11/0x20 [ 715.512719][ C2] } [ 715.512766][ C2] ... key at: [] __key.37+0x0/0x40 [ 715.512917][ C2] ... acquired at: [ 715.512987][ C2] mark_lock+0x1d7/0xa00 [ 715.513141][ C2] mark_usage+0x42/0x170 [ 715.513235][ C2] __lock_acquire+0x378/0xc10 [ 715.513330][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.513426][ C2] _raw_read_lock_bh+0x44/0x80 [ 715.513579][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 715.513675][ C2] ndisc_send_ns+0xf3/0x120 [ 715.513770][ C2] ndisc_solicit+0x314/0x480 [ 715.513870][ C2] neigh_probe+0xb3/0x100 [ 715.514024][ C2] __neigh_event_send+0x802/0x1070 [ 715.514126][ C2] neigh_resolve_output+0xbe/0x140 [ 715.514222][ C2] ip6_finish_output2+0x488/0x1310 [ 715.514319][ C2] ip6_finish_output+0x701/0xe80 [ 715.514475][ C2] ip6_output+0x23f/0x7f0 [ 715.514571][ C2] ip6_forward+0x1165/0x2d40 [ 715.514667][ C2] ipv6_rcv+0x3c1/0x5a0 [ 715.514741][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 715.514924][ C2] process_backlog+0x2bc/0x1490 [ 715.515019][ C2] __napi_poll+0xa7/0x3b0 [ 715.515118][ C2] net_rx_action+0x513/0xf50 [ 715.515212][ C2] handle_softirqs+0x1d8/0x940 [ 715.515370][ C2] do_softirq+0xa9/0xe0 [ 715.515444][ C2] __local_bh_enable_ip+0x113/0x140 [ 715.515586][ C2] __neigh_event_send+0x30a/0x1070 [ 715.515727][ C2] neigh_resolve_output+0xbe/0x140 [ 715.515969][ C2] ip6_finish_output2+0x488/0x1310 [ 715.516114][ C2] ip6_finish_output+0x701/0xe80 [ 715.516256][ C2] ip6_output+0x23f/0x7f0 [ 715.516397][ C2] ip6_send_skb+0xee/0x350 [ 715.516636][ C2] rawv6_push_pending_frames+0x4cb/0xa90 [ 715.516810][ C2] rawv6_sendmsg+0x1434/0x1a50 [ 715.516953][ C2] __sys_sendto+0x2c9/0x400 [ 715.517051][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 715.517202][ C2] do_syscall_64+0x117/0x590 [ 715.517300][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 715.517417][ C2] [ 715.517469][ C2] [ 715.517469][ C2] stack backtrace: [ 715.517648][ C2] CPU: 2 UID: 0 PID: 22282 Comm: ping Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 715.517652][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 715.517654][ C2] Call Trace: [ 715.517656][ C2] [ 715.517657][ C2] dump_stack_lvl+0x6f/0xa0 [ 715.517660][ C2] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 715.517663][ C2] mark_lock_irq+0x989/0x9c0 [ 715.517667][ C2] mark_lock+0x1d7/0xa00 [ 715.517668][ C2] mark_usage+0x42/0x170 [ 715.517670][ C2] __lock_acquire+0x378/0xc10 [ 715.517671][ C2] ? __lock_acquire+0x508/0xc10 [ 715.517674][ C2] lock_acquire.part.0+0xbc/0x260 [ 715.517675][ C2] ? ipv6_get_lladdr+0xa8/0x3f0 [ 715.517678][ C2] ? rcu_is_watching+0x15/0xd0 [ 715.517681][ C2] ? lock_acquire+0x134/0x160 [ 715.517683][ C2] _raw_read_lock_bh+0x44/0x80 [ 715.517684][ C2] ? ipv6_get_lladdr+0xa8/0x3f0 [ 715.517686][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 715.517689][ C2] ndisc_send_ns+0xf3/0x120 [ 715.517690][ C2] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 715.517692][ C2] ? ndisc_parse_options+0x30/0x30 [ 715.517694][ C2] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 715.517695][ C2] ? mark_held_locks+0x40/0x70 [ 715.517697][ C2] ndisc_solicit+0x314/0x480 [ 715.517699][ C2] ? ndisc_send_ns+0x120/0x120 [ 715.517701][ C2] ? neigh_probe+0x62/0x100 [ 715.517703][ C2] neigh_probe+0xb3/0x100 [ 715.517705][ C2] __neigh_event_send+0x802/0x1070 [ 715.517707][ C2] ? warn_bogus_irq_restore+0x1/0x20 [ 715.517709][ C2] neigh_resolve_output+0xbe/0x140 [ 715.517711][ C2] ip6_finish_output2+0x488/0x1310 [ 715.517714][ C2] ? ip6_xmit+0x2000/0x2000 [ 715.517715][ C2] ? find_held_lock+0x2b/0x80 [ 715.517717][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 715.517719][ C2] ? ip6_mtu+0x174/0x410 [ 715.517721][ C2] ip6_finish_output+0x701/0xe80 [ 715.517723][ C2] ip6_output+0x23f/0x7f0 [ 715.517725][ C2] ? ip6_finish_output+0xe80/0xe80 [ 715.517727][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 715.517728][ C2] ? find_held_lock+0x2b/0x80 [ 715.517729][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 715.517732][ C2] ip6_forward+0x1165/0x2d40 [ 715.517733][ C2] ? ip6_route_input+0x657/0xbb0 [ 715.517736][ C2] ? ip6_autoflowlabel+0x120/0x120 [ 715.517739][ C2] ? ip6_rcv_core+0xe22/0x1be0 [ 715.517742][ C2] ? ipv6_rcv+0x3c1/0x5a0 [ 715.517743][ C2] ipv6_rcv+0x3c1/0x5a0 [ 715.517745][ C2] ? ip6_rcv_core+0x1be0/0x1be0 [ 715.517746][ C2] ? validate_chain+0x38b/0xc20 [ 715.517748][ C2] ? validate_chain+0x38b/0xc20 [ 715.517749][ C2] ? mark_usage+0x61/0x170 [ 715.517751][ C2] ? __lock_acquire+0x508/0xc10 [ 715.517752][ C2] ? lock_unpin_lock+0x157/0x1c0 [ 715.517754][ C2] ? process_backlog+0x561/0x1490 [ 715.517755][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 715.517757][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 715.517759][ C2] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 715.517761][ C2] ? rcu_is_watching+0x15/0xd0 [ 715.517763][ C2] process_backlog+0x2bc/0x1490 [ 715.517766][ C2] __napi_poll+0xa7/0x3b0 [ 715.517768][ C2] net_rx_action+0x513/0xf50 [ 715.517771][ C2] ? __napi_poll+0x3b0/0x3b0 [ 715.517775][ C2] ? mark_held_locks+0x40/0x70 [ 715.517776][ C2] handle_softirqs+0x1d8/0x940 [ 715.517778][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 715.517780][ C2] ? _local_bh_enable+0xd0/0xd0 [ 715.517781][ C2] ? rcu_is_watching+0x15/0xd0 [ 715.517783][ C2] do_softirq+0xa9/0xe0 [ 715.517785][ C2] [ 715.517786][ C2] [ 715.517786][ C2] __local_bh_enable_ip+0x113/0x140 [ 715.517788][ C2] __neigh_event_send+0x30a/0x1070 [ 715.517790][ C2] ? warn_bogus_irq_restore+0x1/0x20 [ 715.517792][ C2] neigh_resolve_output+0xbe/0x140 [ 715.517794][ C2] ip6_finish_output2+0x488/0x1310 [ 715.517796][ C2] ? ip6_xmit+0x2000/0x2000 [ 715.517798][ C2] ? find_held_lock+0x2b/0x80 [ 715.517799][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 715.517801][ C2] ? ip6_mtu+0x174/0x410 [ 715.517803][ C2] ip6_finish_output+0x701/0xe80 [ 715.517805][ C2] ip6_output+0x23f/0x7f0 [ 715.517807][ C2] ? ip6_finish_output+0xe80/0xe80 [ 715.517809][ C2] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 715.517812][ C2] ip6_send_skb+0xee/0x350 [ 715.517814][ C2] rawv6_push_pending_frames+0x4cb/0xa90 [ 715.517816][ C2] ? ip6_flush_pending_frames+0x20/0x20 [ 715.517818][ C2] ? rawv6_setsockopt+0x560/0x560 [ 715.517820][ C2] ? raw6_destroy+0x30/0x30 [ 715.517822][ C2] rawv6_sendmsg+0x1434/0x1a50 [ 715.517823][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 715.517826][ C2] ? rawv6_send_hdrinc+0x15b0/0x15b0 [ 715.517829][ C2] ? free_swap_cache+0x11/0x370 [ 715.517833][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 715.517836][ C2] ? __might_fault+0x97/0x140 [ 715.517839][ C2] ? __sys_sendto+0x2c9/0x400 [ 715.517841][ C2] __sys_sendto+0x2c9/0x400 [ 715.517843][ C2] ? __ia32_sys_getpeername+0xd0/0xd0 [ 715.517844][ C2] ? __pmd_alloc+0x840/0x840 [ 715.517849][ C2] ? exc_page_fault+0x87/0x100 [ 715.517851][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 715.517859][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 715.517862][ C2] ? lockdep_hardirqs_on+0x8c/0x130 [ 715.517863][ C2] ? do_syscall_64+0x82/0x590 [ 715.517865][ C2] do_syscall_64+0x117/0x590 [ 715.517867][ C2] ? trace_hardirqs_off+0xd/0x30 [ 715.517869][ C2] ? exc_page_fault+0xee/0x100 [ 715.517870][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 715.517872][ C2] RIP: 0033:0x7f7e6f43508e [ 715.517875][ 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 [ 715.517876][ C2] RSP: 002b:00007fff340e7850 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 715.517879][ C2] RAX: ffffffffffffffda RBX: 000055e0df1b20a0 RCX: 00007f7e6f43508e [ 715.517881][ C2] RDX: 0000000000000040 RSI: 000055e0df1b20a4 RDI: 0000000000000006 [ 715.517882][ C2] RBP: 00007fff340e7860 R08: 000055e0df1c42b4 R09: 000000000000001c [ 715.517883][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 000055e0df1b20a4 [ 715.517884][ C2] R13: 0000000000000040 R14: 00007fff340e8b50 R15: 000055e0df1b20a0 [ 715.517886][ C2] WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr