[ 48.413428][ T436] ip (436) used greatest stack depth: 24144 bytes left [ 51.439789][ T612] ip (612) used greatest stack depth: 23936 bytes left [ 70.205808][ T1396] mpls_gso: MPLS GSO support [ 233.376268][ T7478] ip (7478) used greatest stack depth: 23328 bytes left [ 718.317758][ C0] [ 718.317862][ C0] ======================================================== [ 718.318010][ C0] WARNING: possible irq lock inversion dependency detected [ 718.318139][ C0] 7.1.0-rc5-virtme #1 Not tainted [ 718.318224][ C0] -------------------------------------------------------- [ 718.318354][ C0] ping/22280 just changed the state of lock: [ 718.318464][ C0] ff1100001be9d578 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 718.318631][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 718.318756][ C0] (acaddr_hash_lock){+.+.}-{3:3} [ 718.318759][ C0] [ 718.318759][ C0] [ 718.318759][ C0] and interrupts could create inverse lock ordering between them. [ 718.318759][ C0] [ 718.319083][ C0] [ 718.319083][ C0] other info that might help us debug this: [ 718.319208][ C0] Possible interrupt unsafe locking scenario: [ 718.319208][ C0] [ 718.319335][ C0] CPU0 CPU1 [ 718.319419][ C0] ---- ---- [ 718.319504][ C0] lock(acaddr_hash_lock); [ 718.319592][ C0] local_irq_disable(); [ 718.319700][ C0] lock(&ndev->lock); [ 718.319806][ C0] lock(acaddr_hash_lock); [ 718.319911][ C0] [ 718.319985][ C0] lock(&ndev->lock); [ 718.320051][ C0] [ 718.320051][ C0] *** DEADLOCK *** [ 718.320051][ C0] [ 718.320177][ C0] 6 locks held by ping/22280: [ 718.320262][ C0] #0: ff1100000e6a9c10 (sk_lock-AF_INET6){+.+.}-{0:0}, at: rawv6_sendmsg+0xf1c/0x1a50 [ 718.320415][ C0] #1: ffffffff9278bda0 (rcu_read_lock){....}-{1:3}, at: ip6_send_skb+0xa2/0x350 [ 718.320565][ C0] #2: ffffffff9278bda0 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 718.320714][ C0] #3: ffffffff9278bda0 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 718.320868][ C0] #4: ffffffff9278bda0 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 718.321023][ C0] #5: ffffffff9278bda0 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 718.321177][ C0] [ 718.321177][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 718.321327][ C0] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 718.321418][ C0] HARDIRQ-ON-W at: [ 718.321485][ C0] __lock_acquire+0x378/0xc10 [ 718.321598][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.321705][ C0] _raw_spin_lock+0x33/0x40 [ 718.321812][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 718.321948][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 718.322056][ C0] addrconf_join_anycast+0x1bc/0x260 [ 718.322164][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 718.322272][ C0] addrconf_dad_completed+0x14b/0xe10 [ 718.322400][ C0] addrconf_dad_begin+0x2e1/0x540 [ 718.322510][ C0] addrconf_dad_work+0x170/0x930 [ 718.322617][ C0] process_one_work+0xdf8/0x1410 [ 718.322725][ C0] worker_thread+0x4f1/0xd60 [ 718.322832][ C0] kthread+0x367/0x460 [ 718.322944][ C0] ret_from_fork+0x474/0x6b0 [ 718.323053][ C0] ret_from_fork_asm+0x11/0x20 [ 718.323166][ C0] SOFTIRQ-ON-W at: [ 718.323231][ C0] __lock_acquire+0x378/0xc10 [ 718.323338][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.323445][ C0] _raw_spin_lock+0x33/0x40 [ 718.323554][ C0] __ipv6_dev_ac_dec+0x236/0x5d0 [ 718.323661][ C0] addrconf_leave_anycast+0x1bc/0x260 [ 718.323791][ C0] addrconf_ifdown.isra.0+0xded/0x15f0 [ 718.323918][ C0] addrconf_notify+0x2c8/0xf30 [ 718.324029][ C0] notifier_call_chain+0xb0/0x320 [ 718.324135][ C0] __dev_notify_flags+0x165/0x280 [ 718.324241][ C0] netif_change_flags+0xfe/0x190 [ 718.324350][ C0] do_setlink.isra.0+0x1d25/0x2a60 [ 718.324457][ C0] rtnl_newlink+0x8d1/0xee0 [ 718.324562][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 718.324667][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 718.324776][ C0] netlink_unicast+0x486/0x750 [ 718.324888][ C0] netlink_sendmsg+0x735/0xc60 [ 718.325000][ C0] ____sys_sendmsg+0x419/0x850 [ 718.325109][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 718.325217][ C0] __sys_sendmsg+0x145/0x1f0 [ 718.325325][ C0] do_syscall_64+0x117/0x590 [ 718.325435][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 718.325566][ C0] INITIAL USE at: [ 718.325631][ C0] __lock_acquire+0x378/0xc10 [ 718.325738][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.325843][ C0] _raw_spin_lock+0x33/0x40 [ 718.326013][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 718.326143][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 718.326252][ C0] addrconf_join_anycast+0x1bc/0x260 [ 718.326419][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 718.326530][ C0] addrconf_dad_completed+0x14b/0xe10 [ 718.326635][ C0] addrconf_dad_begin+0x2e1/0x540 [ 718.326744][ C0] addrconf_dad_work+0x170/0x930 [ 718.326909][ C0] process_one_work+0xdf8/0x1410 [ 718.327020][ C0] worker_thread+0x4f1/0xd60 [ 718.327126][ C0] kthread+0x367/0x460 [ 718.327289][ C0] ret_from_fork+0x474/0x6b0 [ 718.327392][ C0] ret_from_fork_asm+0x11/0x20 [ 718.327502][ C0] } [ 718.327547][ C0] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 718.327733][ C0] ... acquired at: [ 718.327795][ C0] __lock_acquire+0x508/0xc10 [ 718.327880][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.328026][ C0] _raw_spin_lock+0x33/0x40 [ 718.328112][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 718.328220][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 718.328304][ C0] addrconf_join_anycast+0x1bc/0x260 [ 718.328446][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 718.328530][ C0] addrconf_dad_completed+0x14b/0xe10 [ 718.328614][ C0] addrconf_dad_begin+0x2e1/0x540 [ 718.328698][ C0] addrconf_dad_work+0x170/0x930 [ 718.328844][ C0] process_one_work+0xdf8/0x1410 [ 718.328932][ C0] worker_thread+0x4f1/0xd60 [ 718.329018][ C0] kthread+0x367/0x460 [ 718.329083][ C0] ret_from_fork+0x474/0x6b0 [ 718.329223][ C0] ret_from_fork_asm+0x11/0x20 [ 718.329308][ C0] [ 718.329351][ C0] -> (&ndev->lock){++.-}-{3:3} { [ 718.329437][ C0] HARDIRQ-ON-W at: [ 718.329503][ C0] __lock_acquire+0x378/0xc10 [ 718.329667][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.329772][ C0] _raw_write_lock_bh+0x38/0x50 [ 718.329877][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 718.330047][ C0] addrconf_notify+0x151/0xf30 [ 718.330155][ C0] notifier_call_chain+0xb0/0x320 [ 718.330260][ C0] __dev_notify_flags+0xde/0x280 [ 718.330423][ C0] netif_change_flags+0xfe/0x190 [ 718.330531][ C0] do_setlink.isra.0+0x1d25/0x2a60 [ 718.330636][ C0] rtnl_newlink+0x8d1/0xee0 [ 718.330740][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 718.330904][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 718.331015][ C0] netlink_unicast+0x486/0x750 [ 718.331120][ C0] netlink_sendmsg+0x735/0xc60 [ 718.331289][ C0] ____sys_sendmsg+0x419/0x850 [ 718.331395][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 718.331509][ C0] __sys_sendmsg+0x145/0x1f0 [ 718.331678][ C0] do_syscall_64+0x117/0x590 [ 718.331784][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 718.331919][ C0] HARDIRQ-ON-R at: [ 718.332044][ C0] __lock_acquire+0x378/0xc10 [ 718.332150][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.332257][ C0] _raw_read_lock_bh+0x44/0x80 [ 718.332363][ C0] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 718.332547][ C0] inet6_fill_link_af+0x5c/0xe0 [ 718.332652][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 718.332834][ C0] rtmsg_ifinfo_build_skb+0x144/0x250 [ 718.332945][ C0] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 718.333072][ C0] rtmsg_ifinfo+0x5c/0xb0 [ 718.333236][ C0] register_netdevice+0x1526/0x1bc0 [ 718.333342][ C0] register_netdev+0x23/0x40 [ 718.333447][ C0] vti6_init_net+0x280/0x3c0 [ 718.333560][ C0] ops_init+0x187/0x560 [ 718.333723][ C0] register_pernet_operations+0x395/0x8e0 [ 718.333850][ C0] register_pernet_device+0x2c/0x60 [ 718.333961][ C0] vti6_tunnel_init+0x17/0x100 [ 718.334125][ C0] do_one_initcall+0x12b/0x520 [ 718.334231][ C0] kernel_init_freeable+0x596/0x630 [ 718.334338][ C0] kernel_init+0x1e/0x170 [ 718.334501][ C0] ret_from_fork+0x474/0x6b0 [ 718.334606][ C0] ret_from_fork_asm+0x11/0x20 [ 718.334712][ C0] IN-SOFTIRQ-R at: [ 718.334833][ C0] __lock_acquire+0x378/0xc10 [ 718.334944][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.335067][ C0] _raw_read_lock_bh+0x44/0x80 [ 718.335175][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 718.335339][ C0] ndisc_send_ns+0xf3/0x120 [ 718.335446][ C0] ndisc_solicit+0x314/0x480 [ 718.335551][ C0] neigh_probe+0xb3/0x100 [ 718.335714][ C0] __neigh_event_send+0x802/0x1070 [ 718.335820][ C0] neigh_resolve_output+0xbe/0x140 [ 718.335932][ C0] ip6_finish_output2+0x488/0x1310 [ 718.336099][ C0] ip6_finish_output+0x701/0xe80 [ 718.336206][ C0] ip6_output+0x23f/0x7f0 [ 718.336313][ C0] ip6_forward+0x1165/0x2d40 [ 718.336479][ C0] ipv6_rcv+0x3c1/0x5a0 [ 718.336586][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 718.336713][ C0] process_backlog+0x2bc/0x1490 [ 718.336876][ C0] __napi_poll+0xa7/0x3b0 [ 718.336989][ C0] net_rx_action+0x513/0xf50 [ 718.337096][ C0] handle_softirqs+0x1d8/0x940 [ 718.337263][ C0] do_softirq+0xa9/0xe0 [ 718.337371][ C0] __local_bh_enable_ip+0x113/0x140 [ 718.337478][ C0] __neigh_event_send+0x30a/0x1070 [ 718.337583][ C0] neigh_resolve_output+0xbe/0x140 [ 718.337747][ C0] ip6_finish_output2+0x488/0x1310 [ 718.337853][ C0] ip6_finish_output+0x701/0xe80 [ 718.337965][ C0] ip6_output+0x23f/0x7f0 [ 718.338134][ C0] ip6_send_skb+0xee/0x350 [ 718.338241][ C0] rawv6_push_pending_frames+0x4cb/0xa90 [ 718.338371][ C0] rawv6_sendmsg+0x1434/0x1a50 [ 718.338535][ C0] __sys_sendto+0x2c9/0x400 [ 718.338642][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 718.338748][ C0] do_syscall_64+0x117/0x590 [ 718.338918][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 718.339051][ C0] INITIAL USE at: [ 718.339115][ C0] __lock_acquire+0x378/0xc10 [ 718.339285][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.339397][ C0] _raw_write_lock_bh+0x38/0x50 [ 718.339516][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 718.339654][ C0] addrconf_notify+0x151/0xf30 [ 718.339830][ C0] notifier_call_chain+0xb0/0x320 [ 718.339947][ C0] __dev_notify_flags+0xde/0x280 [ 718.340054][ C0] netif_change_flags+0xfe/0x190 [ 718.340224][ C0] do_setlink.isra.0+0x1d25/0x2a60 [ 718.340334][ C0] rtnl_newlink+0x8d1/0xee0 [ 718.340446][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 718.340615][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 718.340723][ C0] netlink_unicast+0x486/0x750 [ 718.340835][ C0] netlink_sendmsg+0x735/0xc60 [ 718.341010][ C0] ____sys_sendmsg+0x419/0x850 [ 718.341123][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 718.341234][ C0] __sys_sendmsg+0x145/0x1f0 [ 718.341404][ C0] do_syscall_64+0x117/0x590 [ 718.341512][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 718.341643][ C0] INITIAL READ USE at: [ 718.341707][ C0] __lock_acquire+0x378/0xc10 [ 718.341883][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.341999][ C0] _raw_read_lock_bh+0x44/0x80 [ 718.342109][ C0] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 718.342295][ C0] inet6_fill_link_af+0x5c/0xe0 [ 718.342401][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 718.342536][ C0] rtmsg_ifinfo_build_skb+0x144/0x250 [ 718.342722][ C0] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 718.342850][ C0] rtmsg_ifinfo+0x5c/0xb0 [ 718.342962][ C0] register_netdevice+0x1526/0x1bc0 [ 718.343148][ C0] register_netdev+0x23/0x40 [ 718.343255][ C0] vti6_init_net+0x280/0x3c0 [ 718.343363][ C0] ops_init+0x187/0x560 [ 718.343528][ C0] register_pernet_operations+0x395/0x8e0 [ 718.343658][ C0] register_pernet_device+0x2c/0x60 [ 718.343845][ C0] vti6_tunnel_init+0x17/0x100 [ 718.343958][ C0] do_one_initcall+0x12b/0x520 [ 718.344066][ C0] kernel_init_freeable+0x596/0x630 [ 718.344254][ C0] kernel_init+0x1e/0x170 [ 718.344362][ C0] ret_from_fork+0x474/0x6b0 [ 718.344472][ C0] ret_from_fork_asm+0x11/0x20 [ 718.344584][ C0] } [ 718.344685][ C0] ... key at: [] __key.37+0x0/0x40 [ 718.344815][ C0] ... acquired at: [ 718.344879][ C0] mark_lock+0x1d7/0xa00 [ 718.344977][ C0] mark_usage+0x42/0x170 [ 718.345126][ C0] __lock_acquire+0x378/0xc10 [ 718.345212][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.345299][ C0] _raw_read_lock_bh+0x44/0x80 [ 718.345386][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 718.345532][ C0] ndisc_send_ns+0xf3/0x120 [ 718.345617][ C0] ndisc_solicit+0x314/0x480 [ 718.345704][ C0] neigh_probe+0xb3/0x100 [ 718.345788][ C0] __neigh_event_send+0x802/0x1070 [ 718.345937][ C0] neigh_resolve_output+0xbe/0x140 [ 718.346024][ C0] ip6_finish_output2+0x488/0x1310 [ 718.346117][ C0] ip6_finish_output+0x701/0xe80 [ 718.346203][ C0] ip6_output+0x23f/0x7f0 [ 718.346346][ C0] ip6_forward+0x1165/0x2d40 [ 718.346438][ C0] ipv6_rcv+0x3c1/0x5a0 [ 718.346503][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 718.346610][ C0] process_backlog+0x2bc/0x1490 [ 718.346752][ C0] __napi_poll+0xa7/0x3b0 [ 718.346840][ C0] net_rx_action+0x513/0xf50 [ 718.346932][ C0] handle_softirqs+0x1d8/0x940 [ 718.347018][ C0] do_softirq+0xa9/0xe0 [ 718.347143][ C0] __local_bh_enable_ip+0x113/0x140 [ 718.347230][ C0] __neigh_event_send+0x30a/0x1070 [ 718.347316][ C0] neigh_resolve_output+0xbe/0x140 [ 718.347402][ C0] ip6_finish_output2+0x488/0x1310 [ 718.347547][ C0] ip6_finish_output+0x701/0xe80 [ 718.347635][ C0] ip6_output+0x23f/0x7f0 [ 718.347720][ C0] ip6_send_skb+0xee/0x350 [ 718.347806][ C0] rawv6_push_pending_frames+0x4cb/0xa90 [ 718.347972][ C0] rawv6_sendmsg+0x1434/0x1a50 [ 718.348057][ C0] __sys_sendto+0x2c9/0x400 [ 718.348145][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 718.348231][ C0] do_syscall_64+0x117/0x590 [ 718.348376][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 718.348494][ C0] [ 718.348540][ C0] [ 718.348540][ C0] stack backtrace: [ 718.348655][ C0] CPU: 0 UID: 0 PID: 22280 Comm: ping Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 718.348658][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 718.348660][ C0] Call Trace: [ 718.348662][ C0] [ 718.348663][ C0] dump_stack_lvl+0x6f/0xa0 [ 718.348666][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 718.348669][ C0] mark_lock_irq+0x989/0x9c0 [ 718.348673][ C0] mark_lock+0x1d7/0xa00 [ 718.348675][ C0] mark_usage+0x42/0x170 [ 718.348676][ C0] __lock_acquire+0x378/0xc10 [ 718.348678][ C0] ? __lock_acquire+0x508/0xc10 [ 718.348680][ C0] lock_acquire.part.0+0xbc/0x260 [ 718.348681][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 718.348684][ C0] ? rcu_is_watching+0x15/0xd0 [ 718.348687][ C0] ? lock_acquire+0x134/0x160 [ 718.348688][ C0] _raw_read_lock_bh+0x44/0x80 [ 718.348690][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 718.348692][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 718.348694][ C0] ndisc_send_ns+0xf3/0x120 [ 718.348696][ C0] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 718.348698][ C0] ? ndisc_parse_options+0x30/0x30 [ 718.348699][ C0] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 718.348701][ C0] ? mark_held_locks+0x40/0x70 [ 718.348703][ C0] ndisc_solicit+0x314/0x480 [ 718.348705][ C0] ? ndisc_send_ns+0x120/0x120 [ 718.348707][ C0] ? neigh_probe+0x62/0x100 [ 718.348709][ C0] neigh_probe+0xb3/0x100 [ 718.348710][ C0] __neigh_event_send+0x802/0x1070 [ 718.348712][ C0] ? warn_bogus_irq_restore+0x1/0x20 [ 718.348715][ C0] neigh_resolve_output+0xbe/0x140 [ 718.348717][ C0] ip6_finish_output2+0x488/0x1310 [ 718.348719][ C0] ? ip6_xmit+0x2000/0x2000 [ 718.348721][ C0] ? find_held_lock+0x2b/0x80 [ 718.348722][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 718.348724][ C0] ? ip6_mtu+0x174/0x410 [ 718.348727][ C0] ip6_finish_output+0x701/0xe80 [ 718.348729][ C0] ip6_output+0x23f/0x7f0 [ 718.348731][ C0] ? ip6_finish_output+0xe80/0xe80 [ 718.348732][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 718.348734][ C0] ? find_held_lock+0x2b/0x80 [ 718.348735][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 718.348737][ C0] ip6_forward+0x1165/0x2d40 [ 718.348739][ C0] ? ip6_route_input+0x657/0xbb0 [ 718.348742][ C0] ? ip6_autoflowlabel+0x120/0x120 [ 718.348745][ C0] ? ip6_rcv_core+0xe22/0x1be0 [ 718.348747][ C0] ? ipv6_rcv+0x3c1/0x5a0 [ 718.348749][ C0] ipv6_rcv+0x3c1/0x5a0 [ 718.348751][ C0] ? ip6_rcv_core+0x1be0/0x1be0 [ 718.348752][ C0] ? validate_chain+0x38b/0xc20 [ 718.348754][ C0] ? validate_chain+0x38b/0xc20 [ 718.348755][ C0] ? rcu_is_watching+0x15/0xd0 [ 718.348757][ C0] ? mark_usage+0x61/0x170 [ 718.348758][ C0] ? __lock_acquire+0x508/0xc10 [ 718.348760][ C0] ? lock_unpin_lock+0x157/0x1c0 [ 718.348761][ C0] ? process_backlog+0x561/0x1490 [ 718.348763][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 718.348765][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 718.348766][ C0] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 718.348768][ C0] ? rcu_is_watching+0x15/0xd0 [ 718.348771][ C0] process_backlog+0x2bc/0x1490 [ 718.348773][ C0] __napi_poll+0xa7/0x3b0 [ 718.348775][ C0] net_rx_action+0x513/0xf50 [ 718.348778][ C0] ? __napi_poll+0x3b0/0x3b0 [ 718.348782][ C0] ? mark_held_locks+0x40/0x70 [ 718.348784][ C0] handle_softirqs+0x1d8/0x940 [ 718.348786][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 718.348787][ C0] ? _local_bh_enable+0xd0/0xd0 [ 718.348789][ C0] ? rcu_is_watching+0x15/0xd0 [ 718.348791][ C0] do_softirq+0xa9/0xe0 [ 718.348793][ C0] [ 718.348793][ C0] [ 718.348794][ C0] __local_bh_enable_ip+0x113/0x140 [ 718.348796][ C0] __neigh_event_send+0x30a/0x1070 [ 718.348797][ C0] ? warn_bogus_irq_restore+0x1/0x20 [ 718.348800][ C0] neigh_resolve_output+0xbe/0x140 [ 718.348802][ C0] ip6_finish_output2+0x488/0x1310 [ 718.348804][ C0] ? ip6_xmit+0x2000/0x2000 [ 718.348805][ C0] ? find_held_lock+0x2b/0x80 [ 718.348807][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 718.348809][ C0] ? ip6_mtu+0x174/0x410 [ 718.348811][ C0] ip6_finish_output+0x701/0xe80 [ 718.348813][ C0] ip6_output+0x23f/0x7f0 [ 718.348815][ C0] ? ip6_finish_output+0xe80/0xe80 [ 718.348817][ C0] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 718.348820][ C0] ip6_send_skb+0xee/0x350 [ 718.348822][ C0] rawv6_push_pending_frames+0x4cb/0xa90 [ 718.348824][ C0] ? ip6_flush_pending_frames+0x20/0x20 [ 718.348826][ C0] ? rawv6_setsockopt+0x560/0x560 [ 718.348827][ C0] ? raw6_destroy+0x30/0x30 [ 718.348830][ C0] rawv6_sendmsg+0x1434/0x1a50 [ 718.348831][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 718.348833][ C0] ? rawv6_send_hdrinc+0x15b0/0x15b0 [ 718.348837][ C0] ? free_swap_cache+0x11/0x370 [ 718.348841][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 718.348843][ C0] ? __might_fault+0x97/0x140 [ 718.348847][ C0] ? __sys_sendto+0x2c9/0x400 [ 718.348848][ C0] __sys_sendto+0x2c9/0x400 [ 718.348850][ C0] ? __ia32_sys_getpeername+0xd0/0xd0 [ 718.348852][ C0] ? __pmd_alloc+0x840/0x840 [ 718.348857][ C0] ? exc_page_fault+0x87/0x100 [ 718.348859][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 718.348861][ C0] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 718.348864][ C0] ? lockdep_hardirqs_on+0x8c/0x130 [ 718.348865][ C0] ? do_syscall_64+0x82/0x590 [ 718.348867][ C0] do_syscall_64+0x117/0x590 [ 718.348869][ C0] ? trace_hardirqs_off+0xd/0x30 [ 718.348871][ C0] ? exc_page_fault+0xee/0x100 [ 718.348872][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 718.348874][ C0] RIP: 0033:0x7f16ceb9e08e [ 718.348877][ C0] 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 [ 718.348879][ C0] RSP: 002b:00007fff423cb2f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 718.348882][ C0] RAX: ffffffffffffffda RBX: 0000563b33d790a0 RCX: 00007f16ceb9e08e [ 718.348883][ C0] RDX: 0000000000000040 RSI: 0000563b33d790a4 RDI: 0000000000000006 [ 718.348884][ C0] RBP: 00007fff423cb300 R08: 0000563b33d8b2b4 R09: 000000000000001c [ 718.348885][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000563b33d790a4 [ 718.348886][ C0] R13: 0000000000000040 R14: 00007fff423cc5f0 R15: 0000563b33d790a0 [ 718.348888][ C0] WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr