[ 31.969884][ T319] 8021q: 802.1Q VLAN Support v1.8 [ 32.481022][ T324] gre: GRE over IPv4 demultiplexor driver [ 32.530692][ T324] ip6_gre: GRE over IPv6 tunneling driver [ 34.909213][ T350] ip (350) used greatest stack depth: 23424 bytes left [ 43.622659][ T399] GACT probability NOT on [ 44.233228][ C0] [ 44.233432][ C0] ======================================================== [ 44.233685][ C0] WARNING: possible irq lock inversion dependency detected [ 44.233936][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 44.234108][ C0] -------------------------------------------------------- [ 44.234357][ C0] mausezahn/402 just changed the state of lock: [ 44.234575][ C0] ffff888007e26d80 (&ndev->lock){++.-}-{2:2}, at: ipv6_get_lladdr+0xa9/0x3e0 [ 44.234894][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.235149][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 44.235153][ C0] [ 44.235153][ C0] [ 44.235153][ C0] and interrupts could create inverse lock ordering between them. [ 44.235153][ C0] [ 44.235782][ C0] [ 44.235782][ C0] other info that might help us debug this: [ 44.236031][ C0] Possible interrupt unsafe locking scenario: [ 44.236031][ C0] [ 44.236296][ C0] CPU0 CPU1 [ 44.236470][ C0] ---- ---- [ 44.236657][ C0] lock(&p->alloc_lock); [ 44.236787][ C0] local_irq_disable(); [ 44.237000][ C0] lock(&ndev->lock); [ 44.237215][ C0] lock(&p->alloc_lock); [ 44.237426][ C0] [ 44.237553][ C0] lock(&ndev->lock); [ 44.237683][ C0] [ 44.237683][ C0] *** DEADLOCK *** [ 44.237683][ C0] [ 44.237930][ C0] 5 locks held by mausezahn/402: [ 44.238098][ C0] #0: ffffffff899522e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1f8/0x670 [ 44.238411][ C0] #1: ffffffff899522e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 44.238710][ C0] #2: ffffffff89952280 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1dd/0x16d0 [ 44.239007][ C0] #3: ffffffff899522e0 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x2c4/0xf80 [ 44.239307][ C0] #4: ffffffff899522e0 (rcu_read_lock){....}-{1:2}, at: ipv6_get_lladdr+0x39/0x3e0 [ 44.239611][ C0] [ 44.239611][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 44.239901][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.240078][ C0] HARDIRQ-ON-W at: [ 44.240217][ C0] __lock_acquire+0x797/0x1570 [ 44.240441][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.240655][ C0] _raw_spin_lock+0x30/0x40 [ 44.240873][ C0] set_mems_allowed+0x1d/0x210 [ 44.241088][ C0] kernel_init_freeable+0x72/0x310 [ 44.241301][ C0] kernel_init+0x20/0x200 [ 44.241517][ C0] ret_from_fork+0x31/0x70 [ 44.241731][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.241947][ C0] SOFTIRQ-ON-W at: [ 44.242075][ C0] __lock_acquire+0x797/0x1570 [ 44.242290][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.242503][ C0] _raw_spin_lock+0x30/0x40 [ 44.242714][ C0] set_mems_allowed+0x1d/0x210 [ 44.242926][ C0] kernel_init_freeable+0x72/0x310 [ 44.243137][ C0] kernel_init+0x20/0x200 [ 44.243349][ C0] ret_from_fork+0x31/0x70 [ 44.243566][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.243778][ C0] INITIAL USE at: [ 44.243905][ C0] __lock_acquire+0x797/0x1570 [ 44.244116][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.244331][ C0] _raw_spin_lock+0x30/0x40 [ 44.244546][ C0] set_mems_allowed+0x1d/0x210 [ 44.244758][ C0] kernel_init_freeable+0x72/0x310 [ 44.244968][ C0] kernel_init+0x20/0x200 [ 44.245185][ C0] ret_from_fork+0x31/0x70 [ 44.245396][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.245606][ C0] } [ 44.245694][ C0] ... key at: [] __key.387+0x0/0x40 [ 44.245961][ C0] ... acquired at: [ 44.246087][ C0] __lock_acquire+0xaf0/0x1570 [ 44.246260][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.246430][ C0] _raw_spin_lock+0x30/0x40 [ 44.246601][ C0] __get_task_comm+0x27/0x70 [ 44.246774][ C0] ref_tracker_alloc+0x2ee/0x490 [ 44.246945][ C0] netdev_get_by_index+0x5e/0x80 [ 44.247114][ C0] fib6_nh_init+0x3d8/0x15b0 [ 44.247292][ C0] ip6_route_info_create+0xf18/0x17d0 [ 44.247460][ C0] addrconf_f6i_alloc+0x265/0x560 [ 44.247629][ C0] __ipv6_dev_ac_inc+0x25f/0xb10 [ 44.247798][ C0] addrconf_join_anycast+0x1c0/0x220 [ 44.247968][ C0] __ipv6_ifa_notify+0x6b3/0xaf0 [ 44.248135][ C0] addrconf_dad_completed+0x12b/0xe20 [ 44.248302][ C0] addrconf_dad_work+0x38c/0xab0 [ 44.248472][ C0] process_one_work+0xe2c/0x1730 [ 44.248643][ C0] worker_thread+0x587/0xd30 [ 44.248813][ C0] kthread+0x28a/0x350 [ 44.248942][ C0] ret_from_fork+0x31/0x70 [ 44.249110][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.249279][ C0] [ 44.249367][ C0] -> (&ndev->lock){++.-}-{2:2} { [ 44.249540][ C0] HARDIRQ-ON-W at: [ 44.249666][ C0] __lock_acquire+0x797/0x1570 [ 44.249884][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.250092][ C0] _raw_write_lock_bh+0x38/0x50 [ 44.250313][ C0] addrconf_permanent_addr+0x6e/0x670 [ 44.250524][ C0] addrconf_notify+0x749/0xd60 [ 44.250735][ C0] notifier_call_chain+0xcd/0x150 [ 44.250947][ C0] __dev_notify_flags+0xe6/0x250 [ 44.251164][ C0] dev_change_flags+0xec/0x160 [ 44.251376][ C0] do_setlink+0x7d6/0x21e0 [ 44.251588][ C0] __rtnl_newlink+0xaa7/0xd80 [ 44.251800][ C0] rtnl_newlink+0x63/0xa0 [ 44.252009][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.252221][ C0] netlink_rcv_skb+0x130/0x360 [ 44.252440][ C0] netlink_unicast+0x449/0x710 [ 44.252650][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.252860][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.253075][ C0] ___sys_sendmsg+0xee/0x170 [ 44.253287][ C0] __sys_sendmsg+0xcd/0x170 [ 44.253501][ C0] do_syscall_64+0xc6/0x1e0 [ 44.253714][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.253977][ C0] HARDIRQ-ON-R at: [ 44.254103][ C0] __lock_acquire+0x797/0x1570 [ 44.254313][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.254526][ C0] _raw_read_lock_bh+0x44/0x80 [ 44.254748][ C0] inet6_fill_ifla6_attrs+0x516/0x740 [ 44.254959][ C0] inet6_fill_link_af+0x5e/0xe0 [ 44.255172][ C0] rtnl_fill_ifinfo+0x1612/0x29e0 [ 44.255501][ C0] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 44.255710][ C0] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 44.255963][ C0] rtmsg_ifinfo+0x5b/0xa0 [ 44.256397][ C0] register_netdevice+0x1177/0x1690 [ 44.256608][ C0] register_netdev+0x20/0x40 [ 44.256818][ C0] sit_init_net+0x250/0x4f0 [ 44.257144][ C0] ops_init+0x9b/0x560 [ 44.257317][ C0] register_pernet_operations+0x2db/0x710 [ 44.257569][ C0] register_pernet_device+0x2a/0x60 [ 44.257780][ C0] sit_init+0x23/0xe0 [ 44.258064][ C0] do_one_initcall+0x8d/0x1e0 [ 44.258282][ C0] do_initcalls+0x1b2/0x3e0 [ 44.258499][ C0] kernel_init_freeable+0x232/0x310 [ 44.258820][ C0] kernel_init+0x20/0x200 [ 44.259030][ C0] ret_from_fork+0x31/0x70 [ 44.259244][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.259452][ C0] IN-SOFTIRQ-R at: [ 44.259581][ C0] __lock_acquire+0x797/0x1570 [ 44.259793][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.260008][ C0] _raw_read_lock_bh+0x44/0x80 [ 44.260234][ C0] ipv6_get_lladdr+0xa9/0x3e0 [ 44.260556][ C0] ndisc_send_ns+0xe7/0x100 [ 44.260772][ C0] ndisc_solicit+0x2ae/0x4d0 [ 44.260983][ C0] neigh_probe+0xaa/0xf0 [ 44.261312][ C0] __neigh_event_send+0x7af/0xfe0 [ 44.261525][ C0] neigh_resolve_output+0x470/0x7c0 [ 44.261742][ C0] ip6_finish_output2+0x4ab/0xf80 [ 44.262066][ C0] ip6_finish_output+0x4ed/0xd30 [ 44.262281][ C0] ip6_output+0x1f3/0x770 [ 44.262492][ C0] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 44.262762][ C0] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 44.263144][ C0] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 44.263366][ C0] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 44.263622][ C0] dev_hard_start_xmit+0x10e/0x360 [ 44.263835][ C0] __dev_queue_xmit+0xe69/0x16d0 [ 44.264043][ C0] ip_finish_output2+0x616/0x18e0 [ 44.264254][ C0] ip_output+0x16b/0x4f0 [ 44.264577][ C0] NF_HOOK.constprop.0+0x7e/0x320 [ 44.264789][ C0] ip_rcv+0x62f/0x740 [ 44.264958][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 44.265320][ C0] process_backlog+0x103/0x670 [ 44.265531][ C0] __napi_poll.constprop.0+0xa2/0x460 [ 44.265742][ C0] net_rx_action+0x49f/0xc00 [ 44.265959][ C0] __do_softirq+0x1f8/0x5df [ 44.266283][ C0] do_softirq+0x4d/0xa0 [ 44.266494][ C0] __local_bh_enable_ip+0xf6/0x120 [ 44.266707][ C0] __dev_queue_xmit+0x6ac/0x16d0 [ 44.267031][ C0] packet_snd+0xd08/0x1840 [ 44.267247][ C0] __sys_sendto+0x37d/0x410 [ 44.267462][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.267687][ C0] do_syscall_64+0xc6/0x1e0 [ 44.268016][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.268271][ C0] INITIAL USE at: [ 44.268397][ C0] __lock_acquire+0x797/0x1570 [ 44.268615][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.268826][ C0] _raw_write_lock_bh+0x38/0x50 [ 44.269046][ C0] addrconf_permanent_addr+0x6e/0x670 [ 44.269262][ C0] addrconf_notify+0x749/0xd60 [ 44.269703][ C0] notifier_call_chain+0xcd/0x150 [ 44.269919][ C0] __dev_notify_flags+0xe6/0x250 [ 44.270130][ C0] dev_change_flags+0xec/0x160 [ 44.270463][ C0] do_setlink+0x7d6/0x21e0 [ 44.270678][ C0] __rtnl_newlink+0xaa7/0xd80 [ 44.270895][ C0] rtnl_newlink+0x63/0xa0 [ 44.271219][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.271434][ C0] netlink_rcv_skb+0x130/0x360 [ 44.271647][ C0] netlink_unicast+0x449/0x710 [ 44.271858][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.272182][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.272400][ C0] ___sys_sendmsg+0xee/0x170 [ 44.272612][ C0] __sys_sendmsg+0xcd/0x170 [ 44.272941][ C0] do_syscall_64+0xc6/0x1e0 [ 44.273150][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.273403][ C0] INITIAL READ USE at: [ 44.273530][ C0] __lock_acquire+0x797/0x1570 [ 44.273745][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.273967][ C0] _raw_read_lock_bh+0x44/0x80 [ 44.274179][ C0] inet6_fill_ifla6_attrs+0x516/0x740 [ 44.274562][ C0] inet6_fill_link_af+0x5e/0xe0 [ 44.274782][ C0] rtnl_fill_ifinfo+0x1612/0x29e0 [ 44.274995][ C0] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 44.275368][ C0] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 44.275639][ C0] rtmsg_ifinfo+0x5b/0xa0 [ 44.275851][ C0] register_netdevice+0x1177/0x1690 [ 44.276224][ C0] register_netdev+0x20/0x40 [ 44.276437][ C0] sit_init_net+0x250/0x4f0 [ 44.276652][ C0] ops_init+0x9b/0x560 [ 44.276868][ C0] register_pernet_operations+0x2db/0x710 [ 44.277239][ C0] register_pernet_device+0x2a/0x60 [ 44.277493][ C0] sit_init+0x23/0xe0 [ 44.277705][ C0] do_one_initcall+0x8d/0x1e0 [ 44.278035][ C0] do_initcalls+0x1b2/0x3e0 [ 44.278248][ C0] kernel_init_freeable+0x232/0x310 [ 44.278503][ C0] kernel_init+0x20/0x200 [ 44.278719][ C0] ret_from_fork+0x31/0x70 [ 44.278933][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.279145][ C0] } [ 44.279231][ C0] ... key at: [] __key.37+0x0/0x40 [ 44.279596][ C0] ... acquired at: [ 44.279723][ C0] mark_lock+0x28d/0x3e0 [ 44.279892][ C0] mark_usage+0xd9/0x2a0 [ 44.280066][ C0] __lock_acquire+0x797/0x1570 [ 44.280362][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.280533][ C0] _raw_read_lock_bh+0x44/0x80 [ 44.280705][ C0] ipv6_get_lladdr+0xa9/0x3e0 [ 44.280876][ C0] ndisc_send_ns+0xe7/0x100 [ 44.281154][ C0] ndisc_solicit+0x2ae/0x4d0 [ 44.281324][ C0] neigh_probe+0xaa/0xf0 [ 44.281497][ C0] __neigh_event_send+0x7af/0xfe0 [ 44.281667][ C0] neigh_resolve_output+0x470/0x7c0 [ 44.281959][ C0] ip6_finish_output2+0x4ab/0xf80 [ 44.282128][ C0] ip6_finish_output+0x4ed/0xd30 [ 44.282296][ C0] ip6_output+0x1f3/0x770 [ 44.282462][ C0] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 44.282789][ C0] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 44.283003][ C0] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 44.283177][ C0] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 44.283396][ C0] dev_hard_start_xmit+0x10e/0x360 [ 44.283677][ C0] __dev_queue_xmit+0xe69/0x16d0 [ 44.283845][ C0] ip_finish_output2+0x616/0x18e0 [ 44.284013][ C0] ip_output+0x16b/0x4f0 [ 44.284181][ C0] NF_HOOK.constprop.0+0x7e/0x320 [ 44.284464][ C0] ip_rcv+0x62f/0x740 [ 44.284592][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 44.284806][ C0] process_backlog+0x103/0x670 [ 44.284975][ C0] __napi_poll.constprop.0+0xa2/0x460 [ 44.285144][ C0] net_rx_action+0x49f/0xc00 [ 44.285423][ C0] __do_softirq+0x1f8/0x5df [ 44.285592][ C0] do_softirq+0x4d/0xa0 [ 44.285721][ C0] __local_bh_enable_ip+0xf6/0x120 [ 44.285889][ C0] __dev_queue_xmit+0x6ac/0x16d0 [ 44.286167][ C0] packet_snd+0xd08/0x1840 [ 44.286342][ C0] __sys_sendto+0x37d/0x410 [ 44.286510][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.286680][ C0] do_syscall_64+0xc6/0x1e0 [ 44.286963][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.287174][ C0] [ 44.287259][ C0] [ 44.287259][ C0] stack backtrace: [ 44.287470][ C0] CPU: 0 PID: 402 Comm: mausezahn Not tainted 6.9.0-rc1-virtme #1 [ 44.287727][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.288108][ C0] Call Trace: [ 44.288238][ C0] [ 44.288328][ C0] dump_stack_lvl+0x82/0xd0 [ 44.288619][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.288836][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.289055][ C0] ? __pfx_usage_skip+0x10/0x10 [ 44.289224][ C0] ? __pfx_usage_match+0x10/0x10 [ 44.289506][ C0] ? arch_stack_walk+0xa2/0xf0 [ 44.289685][ C0] mark_lock_irq+0x4cd/0xa10 [ 44.289859][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.290029][ C0] ? stack_trace_save+0x94/0xd0 [ 44.290323][ C0] ? save_trace+0x8f/0x5b0 [ 44.290493][ C0] mark_lock+0x28d/0x3e0 [ 44.290625][ C0] mark_usage+0xd9/0x2a0 [ 44.290754][ C0] __lock_acquire+0x797/0x1570 [ 44.290925][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.291204][ C0] ? ipv6_get_lladdr+0xa9/0x3e0 [ 44.291378][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.291548][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 44.291719][ C0] ? ipv6_get_lladdr+0xa9/0x3e0 [ 44.292002][ C0] ? lock_acquire+0x32/0xc0 [ 44.292170][ C0] ? ipv6_get_lladdr+0xa9/0x3e0 [ 44.292344][ C0] _raw_read_lock_bh+0x44/0x80 [ 44.292512][ C0] ? ipv6_get_lladdr+0xa9/0x3e0 [ 44.292681][ C0] ipv6_get_lladdr+0xa9/0x3e0 [ 44.292853][ C0] ndisc_send_ns+0xe7/0x100 [ 44.293023][ C0] ? __pfx_ndisc_send_ns+0x10/0x10 [ 44.293192][ C0] ? __ipv6_chk_addr_and_flags+0x393/0x650 [ 44.293520][ C0] ndisc_solicit+0x2ae/0x4d0 [ 44.293691][ C0] ? __pfx_ndisc_solicit+0x10/0x10 [ 44.293863][ C0] ? neigh_probe+0x57/0xf0 [ 44.294034][ C0] neigh_probe+0xaa/0xf0 [ 44.294162][ C0] __neigh_event_send+0x7af/0xfe0 [ 44.294444][ C0] ? do_raw_write_lock+0xe1/0x3b0 [ 44.294617][ C0] ? __pfx_do_raw_write_lock+0x10/0x10 [ 44.294787][ C0] neigh_resolve_output+0x470/0x7c0 [ 44.294955][ C0] ? __local_bh_enable_ip+0xa6/0x120 [ 44.295234][ C0] ? ___neigh_create+0x7c6/0xe10 [ 44.295406][ C0] ip6_finish_output2+0x4ab/0xf80 [ 44.295578][ C0] ip6_finish_output+0x4ed/0xd30 [ 44.295748][ C0] ? __pfx_flow_hash_from_keys+0x10/0x10 [ 44.296141][ C0] ip6_output+0x1f3/0x770 [ 44.296276][ C0] ? __pfx_ip6_output+0x10/0x10 [ 44.296443][ C0] ? ip6_make_flowlabel.constprop.0+0x1c4/0x2f0 [ip6_tunnel] [ 44.296699][ C0] ? __pfx_ip6_make_flowlabel.constprop.0+0x10/0x10 [ip6_tunnel] [ 44.297071][ C0] ? ip6_local_out+0x25/0x3b0 [ 44.297246][ C0] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 44.297470][ C0] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 44.297685][ C0] ? __kasan_kmalloc+0x7f/0x90 [ 44.297859][ C0] ? trace_kmalloc+0x2a/0xe0 [ 44.298033][ C0] ? sk_getsockopt+0x2048/0x2c40 [ 44.298206][ C0] ? __pfx_ip6_tnl_xmit+0x10/0x10 [ip6_tunnel] [ 44.298532][ C0] ? pskb_expand_head+0x4ac/0x1020 [ 44.298702][ C0] ? __pfx_pskb_expand_head+0x10/0x10 [ 44.298869][ C0] ? __ipv6_chk_addr_and_flags+0x38e/0x650 [ 44.299078][ C0] ? __gre6_xmit+0x706/0x1960 [ip6_gre] [ 44.299369][ C0] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 44.299545][ C0] ? __pfx___gre6_xmit+0x10/0x10 [ip6_gre] [ 44.299762][ C0] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 44.299975][ C0] ? __pfx_ip6gre_tunnel_xmit+0x10/0x10 [ip6_gre] [ 44.300311][ C0] ? find_held_lock+0x2c/0x110 [ 44.300481][ C0] ? __lock_release+0x103/0x460 [ 44.300649][ C0] ? dev_queue_xmit_nit+0x775/0xad0 [ 44.300820][ C0] ? dev_queue_xmit_nit+0x759/0xad0 [ 44.301105][ C0] ? __pfx_qdisc_pkt_len_init+0x10/0x10 [ 44.301275][ C0] ? dev_queue_xmit_nit+0x775/0xad0 [ 44.301445][ C0] dev_hard_start_xmit+0x10e/0x360 [ 44.301613][ C0] ? validate_xmit_skb.constprop.0+0x2a/0x4f0 [ 44.301938][ C0] __dev_queue_xmit+0xe69/0x16d0 [ 44.302113][ C0] ? do_raw_write_lock+0x122/0x3b0 [ 44.302281][ C0] ? __pfx_do_raw_write_lock+0x10/0x10 [ 44.302455][ C0] ? __pfx___dev_queue_xmit+0x10/0x10 [ 44.302624][ C0] ? ___neigh_create+0x7c6/0xe10 [ 44.302792][ C0] ? ___neigh_create+0x7c6/0xe10 [ 44.302960][ C0] ip_finish_output2+0x616/0x18e0 [ 44.303128][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 44.303447][ C0] ? __pfx_ip_finish_output2+0x10/0x10 [ 44.303617][ C0] ? __ip_finish_output+0x10f/0x770 [ 44.303784][ C0] ip_output+0x16b/0x4f0 [ 44.303915][ C0] ? __pfx_ip_output+0x10/0x10 [ 44.304084][ C0] ? pskb_expand_head+0x485/0x1020 [ 44.304363][ C0] ? ip_route_input_noref+0x10e/0x230 [ 44.304533][ C0] NF_HOOK.constprop.0+0x7e/0x320 [ 44.304708][ C0] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 44.304876][ C0] ? ip_forward+0xdc8/0x1a10 [ 44.305157][ C0] ip_rcv+0x62f/0x740 [ 44.305285][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 44.305463][ C0] ? lock_acquire.part.0+0xeb/0x330 [ 44.305632][ C0] ? process_backlog+0x1f8/0x670 [ 44.305803][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 44.306086][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 44.306303][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 44.306515][ C0] ? process_backlog+0x1f8/0x670 [ 44.306687][ C0] ? lock_acquire+0x32/0xc0 [ 44.306859][ C0] ? process_backlog+0x1f8/0x670 [ 44.307038][ C0] process_backlog+0x103/0x670 [ 44.307223][ C0] ? find_held_lock+0x2c/0x110 [ 44.307393][ C0] __napi_poll.constprop.0+0xa2/0x460 [ 44.307677][ C0] net_rx_action+0x49f/0xc00 [ 44.307851][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 44.308022][ C0] __do_softirq+0x1f8/0x5df [ 44.308192][ C0] ? __dev_queue_xmit+0x697/0x16d0 [ 44.308475][ C0] do_softirq+0x4d/0xa0 [ 44.308602][ C0] [ 44.308695][ C0] [ 44.308780][ C0] __local_bh_enable_ip+0xf6/0x120 [ 44.308951][ C0] ? __dev_queue_xmit+0x697/0x16d0 [ 44.309343][ C0] __dev_queue_xmit+0x6ac/0x16d0 [ 44.309510][ C0] ? packet_parse_headers+0x231/0x9d0 [ 44.309680][ C0] ? packet_parse_headers+0x231/0x9d0 [ 44.309848][ C0] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 44.310017][ C0] ? __pfx___dev_queue_xmit+0x10/0x10 [ 44.310309][ C0] ? dev_get_by_index+0x177/0x270 [ 44.310480][ C0] packet_snd+0xd08/0x1840 [ 44.310652][ C0] ? __pfx___lock_release+0x10/0x10 [ 44.310823][ C0] ? __pfx_packet_snd+0x10/0x10 [ 44.311103][ C0] ? __might_fault+0xc3/0x170 [ 44.311274][ C0] ? trace_raw_output_mmap_lock_acquire_returned+0x60/0x1e0 [ 44.311524][ C0] ? __might_fault+0x11b/0x170 [ 44.311698][ C0] __sys_sendto+0x37d/0x410 [ 44.311993][ C0] ? __pfx___sys_sendto+0x10/0x10 [ 44.312164][ C0] ? sock_ioctl+0x3bc/0x590 [ 44.312335][ C0] ? __might_fault+0xc3/0x170 [ 44.312504][ C0] ? trace_rseq_update+0xd2/0x130 [ 44.312675][ C0] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 44.312888][ C0] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 44.313097][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.313264][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 44.313589][ C0] do_syscall_64+0xc6/0x1e0 [ 44.313763][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.313972][ C0] RIP: 0033:0x7f04e634585a [ 44.314272][ C0] 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 [ 44.314876][ C0] RSP: 002b:00007ffc6fd76f78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 44.315252][ C0] RAX: ffffffffffffffda RBX: 000000003c8789d0 RCX: 00007f04e634585a [ 44.315507][ C0] RDX: 0000000000000062 RSI: 000000003c8785c2 RDI: 0000000000000005 [ 44.315760][ C0] RBP: 000000003c8785c2 R08: 00007ffc6fd76f80 R09: 0000000000000014 [ 44.316130][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 44.316396][ C0] R13: 0000000000000062 R14: 00007ffc6fd76f80 R15: 0000000000000000 [ 44.316659][ C0]