[ 10.815343][ T266] 8021q: 802.1Q VLAN Support v1.8 [ 10.924601][ T271] gre: GRE over IPv4 demultiplexer driver [ 10.951691][ T271] ip6_gre: GRE over IPv6 tunneling driver [ 17.467982][ T359] GACT probability NOT on [ 17.578658][ C2] [ 17.578759][ C2] ======================================================== [ 17.578924][ C2] WARNING: possible irq lock inversion dependency detected [ 17.579076][ C2] 7.1.0-rc5-virtme #1 Not tainted [ 17.579178][ C2] -------------------------------------------------------- [ 17.579330][ C2] mausezahn/364 just changed the state of lock: [ 17.579452][ C2] ff1100000edc3d78 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 17.579647][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 17.579801][ C2] (acaddr_hash_lock){+.+.}-{3:3} [ 17.579804][ C2] [ 17.579804][ C2] [ 17.579804][ C2] and interrupts could create inverse lock ordering between them. [ 17.579804][ C2] [ 17.580176][ C2] [ 17.580176][ C2] other info that might help us debug this: [ 17.580325][ C2] Possible interrupt unsafe locking scenario: [ 17.580325][ C2] [ 17.580475][ C2] CPU0 CPU1 [ 17.580574][ C2] ---- ---- [ 17.580676][ C2] lock(acaddr_hash_lock); [ 17.580776][ C2] local_irq_disable(); [ 17.580902][ C2] lock(&ndev->lock); [ 17.581029][ C2] lock(acaddr_hash_lock); [ 17.581154][ C2] [ 17.581230][ C2] lock(&ndev->lock); [ 17.581308][ C2] [ 17.581308][ C2] *** DEADLOCK *** [ 17.581308][ C2] [ 17.581459][ C2] 6 locks held by mausezahn/364: [ 17.581561][ C2] #0: ffffffff9e577d20 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 17.581737][ C2] #1: ffffffff9e577d20 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 17.581917][ C2] #2: ffffffff9e577d20 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 17.582097][ C2] #3: ffffffff9e577cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1fe/0x1b60 [ 17.582275][ C2] #4: ffffffff9e577d20 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 17.582455][ C2] #5: ffffffff9e577d20 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 17.582631][ C2] [ 17.582631][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 17.582806][ C2] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 17.582913][ C2] HARDIRQ-ON-W at: [ 17.582992][ C2] __lock_acquire+0x378/0xc10 [ 17.583125][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.583251][ C2] _raw_spin_lock+0x33/0x40 [ 17.583386][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.583539][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.583667][ C2] addrconf_join_anycast+0x1bc/0x260 [ 17.583791][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 17.583918][ C2] addrconf_dad_completed+0x14b/0xe10 [ 17.584069][ C2] addrconf_dad_begin+0x2e1/0x540 [ 17.584194][ C2] addrconf_dad_work+0x170/0x930 [ 17.584318][ C2] process_one_work+0xdf8/0x1410 [ 17.584449][ C2] worker_thread+0x4f1/0xd60 [ 17.584575][ C2] kthread+0x367/0x460 [ 17.584704][ C2] ret_from_fork+0x474/0x6b0 [ 17.584832][ C2] ret_from_fork_asm+0x11/0x20 [ 17.584961][ C2] SOFTIRQ-ON-W at: [ 17.585038][ C2] __lock_acquire+0x378/0xc10 [ 17.585164][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.585289][ C2] _raw_spin_lock+0x33/0x40 [ 17.585421][ C2] __ipv6_dev_ac_dec+0x236/0x5d0 [ 17.585547][ C2] addrconf_leave_anycast+0x1bc/0x260 [ 17.585697][ C2] __ipv6_ifa_notify+0x6b4/0xad0 [ 17.585824][ C2] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 17.585976][ C2] addrconf_notify+0x339/0xf30 [ 17.586102][ C2] notifier_call_chain+0xb0/0x320 [ 17.586227][ C2] __netdev_upper_dev_link+0x3a5/0x590 [ 17.586381][ C2] netdev_master_upper_dev_link+0x86/0xb0 [ 17.586532][ C2] vrf_add_slave+0xdd/0x210 [vrf] [ 17.586658][ C2] do_set_master+0x357/0x580 [ 17.586790][ C2] do_setlink.isra.0+0xa31/0x2750 [ 17.586918][ C2] rtnl_newlink+0x8d1/0xef0 [ 17.587044][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.587170][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 17.587298][ C2] netlink_unicast+0x486/0x750 [ 17.587429][ C2] netlink_sendmsg+0x735/0xc60 [ 17.587555][ C2] ____sys_sendmsg+0x419/0x850 [ 17.587682][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 17.587808][ C2] __sys_sendmsg+0x145/0x1f0 [ 17.587934][ C2] do_syscall_64+0x117/0x590 [ 17.588058][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.588210][ C2] INITIAL USE at: [ 17.588288][ C2] __lock_acquire+0x378/0xc10 [ 17.588416][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.588544][ C2] _raw_spin_lock+0x33/0x40 [ 17.588677][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.588825][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.588949][ C2] addrconf_join_anycast+0x1bc/0x260 [ 17.589071][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 17.589194][ C2] addrconf_dad_completed+0x14b/0xe10 [ 17.589316][ C2] addrconf_dad_begin+0x2e1/0x540 [ 17.589441][ C2] addrconf_dad_work+0x170/0x930 [ 17.589565][ C2] process_one_work+0xdf8/0x1410 [ 17.589687][ C2] worker_thread+0x4f1/0xd60 [ 17.589808][ C2] kthread+0x367/0x460 [ 17.589931][ C2] ret_from_fork+0x474/0x6b0 [ 17.590053][ C2] ret_from_fork_asm+0x11/0x20 [ 17.590177][ C2] } [ 17.590228][ C2] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 17.590388][ C2] ... acquired at: [ 17.590462][ C2] __lock_acquire+0x508/0xc10 [ 17.590562][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.590659][ C2] _raw_spin_lock+0x33/0x40 [ 17.590759][ C2] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.590882][ C2] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.590978][ C2] addrconf_join_anycast+0x1bc/0x260 [ 17.591075][ C2] __ipv6_ifa_notify+0x75b/0xad0 [ 17.591173][ C2] addrconf_dad_completed+0x14b/0xe10 [ 17.591269][ C2] addrconf_dad_begin+0x2e1/0x540 [ 17.591370][ C2] addrconf_dad_work+0x170/0x930 [ 17.591471][ C2] process_one_work+0xdf8/0x1410 [ 17.591568][ C2] worker_thread+0x4f1/0xd60 [ 17.591665][ C2] kthread+0x367/0x460 [ 17.591738][ C2] ret_from_fork+0x474/0x6b0 [ 17.591834][ C2] ret_from_fork_asm+0x11/0x20 [ 17.591931][ C2] [ 17.591981][ C2] -> (&ndev->lock){++.-}-{3:3} { [ 17.592080][ C2] HARDIRQ-ON-W at: [ 17.592153][ C2] __lock_acquire+0x378/0xc10 [ 17.592276][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.592400][ C2] _raw_write_lock_bh+0x38/0x50 [ 17.592523][ C2] addrconf_permanent_addr+0x108/0x9c0 [ 17.592645][ C2] addrconf_notify+0x151/0xf30 [ 17.592765][ C2] notifier_call_chain+0xb0/0x320 [ 17.592887][ C2] __dev_notify_flags+0xde/0x280 [ 17.593008][ C2] netif_change_flags+0xfe/0x190 [ 17.593130][ C2] do_setlink.isra.0+0x1cc3/0x2750 [ 17.593253][ C2] rtnl_newlink+0x8d1/0xef0 [ 17.593378][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.593502][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 17.593624][ C2] netlink_unicast+0x486/0x750 [ 17.593745][ C2] netlink_sendmsg+0x735/0xc60 [ 17.593867][ C2] ____sys_sendmsg+0x419/0x850 [ 17.593990][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 17.594111][ C2] __sys_sendmsg+0x145/0x1f0 [ 17.594233][ C2] do_syscall_64+0x117/0x590 [ 17.594357][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.594501][ C2] HARDIRQ-ON-R at: [ 17.594575][ C2] __lock_acquire+0x378/0xc10 [ 17.594697][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.594819][ C2] _raw_read_lock_bh+0x44/0x80 [ 17.594944][ C2] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.595093][ C2] inet6_fill_link_af+0x5c/0xe0 [ 17.595216][ C2] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.595366][ C2] rtnl_getlink+0x9c9/0xeb0 [ 17.595489][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.595613][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 17.595737][ C2] netlink_unicast+0x486/0x750 [ 17.595859][ C2] netlink_sendmsg+0x735/0xc60 [ 17.595983][ C2] ____sys_sendmsg+0x419/0x850 [ 17.596107][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 17.596232][ C2] __sys_sendmsg+0x145/0x1f0 [ 17.596357][ C2] do_syscall_64+0x117/0x590 [ 17.596480][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.596626][ C2] IN-SOFTIRQ-R at: [ 17.596700][ C2] __lock_acquire+0x378/0xc10 [ 17.596823][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.596946][ C2] _raw_read_lock_bh+0x44/0x80 [ 17.597070][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 17.597193][ C2] ndisc_send_ns+0xf3/0x120 [ 17.597315][ C2] ndisc_solicit+0x314/0x480 [ 17.597440][ C2] neigh_probe+0xb3/0x100 [ 17.597562][ C2] __neigh_event_send+0x802/0x1070 [ 17.597683][ C2] neigh_resolve_output+0xbe/0x140 [ 17.597805][ C2] ip6_finish_output2+0x423/0x1300 [ 17.597929][ C2] ip6_finish_output+0x646/0xda0 [ 17.598052][ C2] ip6_output+0x23f/0x7f0 [ 17.598174][ C2] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.598325][ C2] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.598449][ C2] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.598599][ C2] dev_hard_start_xmit+0xf8/0x690 [ 17.598722][ C2] __dev_queue_xmit+0xbf4/0x1b60 [ 17.598844][ C2] ip_finish_output2+0x5b9/0x1bc0 [ 17.598969][ C2] ip_output+0x1ca/0x660 [ 17.599092][ C2] ip_rcv+0xdc/0x3d0 [ 17.599192][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 17.599339][ C2] process_backlog+0x2bc/0x1490 [ 17.599461][ C2] __napi_poll+0xa7/0x3b0 [ 17.599583][ C2] net_rx_action+0x513/0xf50 [ 17.599705][ C2] handle_softirqs+0x1d8/0x940 [ 17.599829][ C2] do_softirq+0xa9/0xe0 [ 17.599953][ C2] __local_bh_enable_ip+0x113/0x140 [ 17.600074][ C2] __dev_queue_xmit+0x95b/0x1b60 [ 17.600198][ C2] packet_snd+0xfad/0x1990 [ 17.600325][ C2] __sys_sendto+0x2c9/0x400 [ 17.600449][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 17.600574][ C2] do_syscall_64+0x117/0x590 [ 17.600698][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.600845][ C2] INITIAL USE at: [ 17.600921][ C2] __lock_acquire+0x378/0xc10 [ 17.601044][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.601167][ C2] _raw_write_lock_bh+0x38/0x50 [ 17.601289][ C2] addrconf_permanent_addr+0x108/0x9c0 [ 17.601420][ C2] addrconf_notify+0x151/0xf30 [ 17.601545][ C2] notifier_call_chain+0xb0/0x320 [ 17.601704][ C2] __dev_notify_flags+0xde/0x280 [ 17.601826][ C2] netif_change_flags+0xfe/0x190 [ 17.601948][ C2] do_setlink.isra.0+0x1cc3/0x2750 [ 17.602072][ C2] rtnl_newlink+0x8d1/0xef0 [ 17.602194][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.602317][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 17.602445][ C2] netlink_unicast+0x486/0x750 [ 17.602570][ C2] netlink_sendmsg+0x735/0xc60 [ 17.602691][ C2] ____sys_sendmsg+0x419/0x850 [ 17.602818][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 17.602943][ C2] __sys_sendmsg+0x145/0x1f0 [ 17.603067][ C2] do_syscall_64+0x117/0x590 [ 17.603191][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.603343][ C2] INITIAL READ USE at: [ 17.603417][ C2] __lock_acquire+0x378/0xc10 [ 17.603546][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.603670][ C2] _raw_read_lock_bh+0x44/0x80 [ 17.603794][ C2] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.603943][ C2] inet6_fill_link_af+0x5c/0xe0 [ 17.604066][ C2] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.604218][ C2] rtnl_getlink+0x9c9/0xeb0 [ 17.604345][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.604469][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 17.604595][ C2] netlink_unicast+0x486/0x750 [ 17.604718][ C2] netlink_sendmsg+0x735/0xc60 [ 17.604845][ C2] ____sys_sendmsg+0x419/0x850 [ 17.604969][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 17.605092][ C2] __sys_sendmsg+0x145/0x1f0 [ 17.605216][ C2] do_syscall_64+0x117/0x590 [ 17.605343][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.605491][ C2] } [ 17.605542][ C2] ... key at: [] __key.37+0x0/0x40 [ 17.605692][ C2] ... acquired at: [ 17.605766][ C2] mark_lock+0x1d7/0xa00 [ 17.605864][ C2] mark_usage+0x42/0x170 [ 17.605963][ C2] __lock_acquire+0x378/0xc10 [ 17.606062][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.606161][ C2] _raw_read_lock_bh+0x44/0x80 [ 17.606260][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 17.606361][ C2] ndisc_send_ns+0xf3/0x120 [ 17.606458][ C2] ndisc_solicit+0x314/0x480 [ 17.606556][ C2] neigh_probe+0xb3/0x100 [ 17.606655][ C2] __neigh_event_send+0x802/0x1070 [ 17.606754][ C2] neigh_resolve_output+0xbe/0x140 [ 17.606853][ C2] ip6_finish_output2+0x423/0x1300 [ 17.606951][ C2] ip6_finish_output+0x646/0xda0 [ 17.607051][ C2] ip6_output+0x23f/0x7f0 [ 17.607150][ C2] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.607273][ C2] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.607372][ C2] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.607494][ C2] dev_hard_start_xmit+0xf8/0x690 [ 17.607595][ C2] __dev_queue_xmit+0xbf4/0x1b60 [ 17.607694][ C2] ip_finish_output2+0x5b9/0x1bc0 [ 17.607793][ C2] ip_output+0x1ca/0x660 [ 17.607892][ C2] ip_rcv+0xdc/0x3d0 [ 17.607967][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 17.608089][ C2] process_backlog+0x2bc/0x1490 [ 17.608188][ C2] __napi_poll+0xa7/0x3b0 [ 17.608286][ C2] net_rx_action+0x513/0xf50 [ 17.608390][ C2] handle_softirqs+0x1d8/0x940 [ 17.608489][ C2] do_softirq+0xa9/0xe0 [ 17.608565][ C2] __local_bh_enable_ip+0x113/0x140 [ 17.608664][ C2] __dev_queue_xmit+0x95b/0x1b60 [ 17.608827][ C2] packet_snd+0xfad/0x1990 [ 17.608929][ C2] __sys_sendto+0x2c9/0x400 [ 17.609030][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 17.609131][ C2] do_syscall_64+0x117/0x590 [ 17.609287][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.609412][ C2] [ 17.609462][ C2] [ 17.609462][ C2] stack backtrace: [ 17.609587][ C2] CPU: 2 UID: 0 PID: 364 Comm: mausezahn Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 17.609590][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.609593][ C2] Call Trace: [ 17.609594][ C2] [ 17.609596][ C2] dump_stack_lvl+0x6f/0xa0 [ 17.609601][ C2] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 17.609604][ C2] mark_lock_irq+0x989/0x9c0 [ 17.609607][ C2] mark_lock+0x1d7/0xa00 [ 17.609609][ C2] mark_usage+0x42/0x170 [ 17.609610][ C2] __lock_acquire+0x378/0xc10 [ 17.609612][ C2] ? __lock_acquire+0x508/0xc10 [ 17.609614][ C2] lock_acquire.part.0+0xbc/0x260 [ 17.609615][ C2] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.609617][ C2] ? rcu_is_watching+0x15/0xd0 [ 17.609620][ C2] ? lock_acquire+0x134/0x160 [ 17.609622][ C2] _raw_read_lock_bh+0x44/0x80 [ 17.609624][ C2] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.609625][ C2] ipv6_get_lladdr+0xa8/0x3f0 [ 17.609628][ C2] ndisc_send_ns+0xf3/0x120 [ 17.609629][ C2] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 17.609631][ C2] ? ndisc_parse_options+0x30/0x30 [ 17.609632][ C2] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 17.609635][ C2] ndisc_solicit+0x314/0x480 [ 17.609636][ C2] ? ndisc_send_ns+0x120/0x120 [ 17.609638][ C2] ? neigh_probe+0x62/0x100 [ 17.609640][ C2] neigh_probe+0xb3/0x100 [ 17.609642][ C2] __neigh_event_send+0x802/0x1070 [ 17.609644][ C2] ? warn_bogus_irq_restore+0x1/0x20 [ 17.609646][ C2] ? ___neigh_create+0x811/0x1070 [ 17.609649][ C2] neigh_resolve_output+0xbe/0x140 [ 17.609651][ C2] ip6_finish_output2+0x423/0x1300 [ 17.609653][ C2] ? ip6_xmit+0x2000/0x2000 [ 17.609654][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 17.609655][ C2] ? find_held_lock+0x2b/0x80 [ 17.609658][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.609660][ C2] ? ip6_mtu+0x15d/0x310 [ 17.609663][ C2] ip6_finish_output+0x646/0xda0 [ 17.609665][ C2] ip6_output+0x23f/0x7f0 [ 17.609666][ C2] ? ip6_finish_output+0xda0/0xda0 [ 17.609668][ C2] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 17.609671][ C2] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.609675][ C2] ? ip_route_input+0x420/0x420 [ip6_tunnel] [ 17.609677][ C2] ? pskb_expand_head+0x4ac/0xf50 [ 17.609679][ C2] ? __lock_acquire+0x508/0xc10 [ 17.609681][ C2] ? __pskb_copy_fclone+0x1080/0x1080 [ 17.609683][ C2] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.609686][ C2] ? __ipv6_chk_addr_and_flags+0x1b0/0x5f0 [ 17.609688][ C2] ? gre_build_header+0xa70/0xa70 [ip6_gre] [ 17.609691][ C2] ? ip6_tnl_xmit_ctl+0x21e/0x390 [ip6_tunnel] [ 17.609692][ C2] ? __asan_memcpy+0x3c/0x60 [ 17.609696][ C2] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.609698][ C2] ? __gre6_xmit+0x1910/0x1910 [ip6_gre] [ 17.609700][ C2] ? sock_def_readable+0x156/0x490 [ 17.609702][ C2] ? find_held_lock+0x2b/0x80 [ 17.609705][ C2] ? dev_queue_xmit_nit+0x642/0x9e0 [ 17.609708][ C2] dev_hard_start_xmit+0xf8/0x690 [ 17.609710][ C2] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.609712][ C2] ? rcu_is_watching+0x15/0xd0 [ 17.609714][ C2] __dev_queue_xmit+0xbf4/0x1b60 [ 17.609716][ C2] ? __lock_acquire+0x508/0xc10 [ 17.609718][ C2] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.609720][ C2] ? find_held_lock+0x2b/0x80 [ 17.609722][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.609724][ C2] ? ___neigh_create+0x811/0x1070 [ 17.609726][ C2] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.609728][ C2] ip_finish_output2+0x5b9/0x1bc0 [ 17.609730][ C2] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 17.609733][ C2] ? ip4_dst_hoplimit+0x320/0x320 [ 17.609735][ C2] ? rcu_is_watching+0x15/0xd0 [ 17.609737][ C2] ip_output+0x1ca/0x660 [ 17.609738][ C2] ? ip_finish_output+0x460/0x460 [ 17.609740][ C2] ? ip4_frag_init+0x720/0x720 [ 17.609742][ C2] ? ip_forward+0xfa7/0x1570 [ 17.609744][ C2] ? process_backlog+0x561/0x1490 [ 17.609745][ C2] ip_rcv+0xdc/0x3d0 [ 17.609747][ C2] ? ip_local_deliver+0x4c0/0x4c0 [ 17.609750][ C2] ? mark_usage+0x61/0x170 [ 17.609751][ C2] ? __lock_acquire+0x508/0xc10 [ 17.609752][ C2] ? init_data_structures_once.part.0+0x1a7/0x450 [ 17.609754][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 17.609755][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 17.609757][ C2] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 17.609759][ C2] ? rcu_is_watching+0x15/0xd0 [ 17.609761][ C2] process_backlog+0x2bc/0x1490 [ 17.609763][ C2] __napi_poll+0xa7/0x3b0 [ 17.609764][ C2] net_rx_action+0x513/0xf50 [ 17.609766][ C2] ? __napi_poll+0x3b0/0x3b0 [ 17.609768][ C2] ? find_held_lock+0x2b/0x80 [ 17.609772][ C2] ? rcu_is_watching+0x15/0xd0 [ 17.609774][ C2] handle_softirqs+0x1d8/0x940 [ 17.609775][ C2] ? rcu_is_watching+0x15/0xd0 [ 17.609777][ C2] ? _local_bh_enable+0xd0/0xd0 [ 17.609779][ C2] ? trace_csd_function_exit+0xb3/0x1a0 [ 17.609781][ C2] ? rcu_is_watching+0x15/0xd0 [ 17.609783][ C2] do_softirq+0xa9/0xe0 [ 17.609784][ C2] [ 17.609785][ C2] [ 17.609785][ C2] ? __dev_queue_xmit+0x946/0x1b60 [ 17.609787][ C2] __local_bh_enable_ip+0x113/0x140 [ 17.609789][ C2] __dev_queue_xmit+0x95b/0x1b60 [ 17.609791][ C2] ? _copy_from_iter+0x1bb/0x1810 [ 17.609795][ C2] ? _copy_from_iter_flushcache+0x1970/0x1970 [ 17.609797][ C2] ? net_dim+0x730/0xd70 [ 17.609799][ C2] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.609802][ C2] ? packet_release+0xc70/0xc70 [ 17.609805][ C2] packet_snd+0xfad/0x1990 [ 17.609808][ C2] ? tpacket_snd+0x19e0/0x19e0 [ 17.609809][ C2] ? __might_fault+0x97/0x140 [ 17.609813][ C2] ? __might_fault+0x97/0x140 [ 17.609814][ C2] ? __might_fault+0x97/0x140 [ 17.609816][ C2] __sys_sendto+0x2c9/0x400 [ 17.609818][ C2] ? __ia32_sys_getpeername+0xd0/0xd0 [ 17.609821][ C2] ? sock_ioctl+0x3cb/0x5f0 [ 17.609824][ C2] ? do_user_addr_fault+0x325/0xe30 [ 17.609828][ C2] __x64_sys_sendto+0xe4/0x1f0 [ 17.609830][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 17.609833][ C2] ? lockdep_hardirqs_on+0x8c/0x130 [ 17.609834][ C2] ? do_syscall_64+0x82/0x590 [ 17.609835][ C2] do_syscall_64+0x117/0x590 [ 17.609837][ C2] ? trace_hardirqs_off+0xd/0x30 [ 17.609838][ C2] ? exc_page_fault+0xee/0x100 [ 17.609840][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.609842][ C2] RIP: 0033:0x7f1b0600a08e [ 17.609845][ 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 [ 17.609847][ C2] RSP: 002b:00007fff03ae3280 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 17.609850][ C2] RAX: ffffffffffffffda RBX: 000055cd38a0fb22 RCX: 00007f1b0600a08e [ 17.609851][ C2] RDX: 0000000000000062 RSI: 000055cd38a0fb22 RDI: 0000000000000005 [ 17.609852][ C2] RBP: 00007fff03ae3290 R08: 00007fff03ae32e0 R09: 0000000000000014 [ 17.609853][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 000055cd38a0f830 [ 17.609854][ C2] R13: 0000000000000062 R14: 0000000000000005 R15: 000055cd38a0f830 [ 17.609856][ C2]