[ 11.240802][ T284] 8021q: 802.1Q VLAN Support v1.8 [ 11.398164][ T290] gre: GRE over IPv4 demultiplexer driver [ 11.431112][ T290] ip6_gre: GRE over IPv6 tunneling driver [ 18.099153][ T381] GACT probability NOT on [ 18.202394][ C3] [ 18.202477][ C3] ======================================================== [ 18.202635][ C3] WARNING: possible irq lock inversion dependency detected [ 18.202786][ C3] 7.1.0-rc5-virtme #1 Not tainted [ 18.202885][ C3] -------------------------------------------------------- [ 18.203035][ C3] mausezahn/387 just changed the state of lock: [ 18.203168][ C3] ff1100000c973d78 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 18.203354][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 18.203504][ C3] (acaddr_hash_lock){+.+.}-{3:3} [ 18.203506][ C3] [ 18.203506][ C3] [ 18.203506][ C3] and interrupts could create inverse lock ordering between them. [ 18.203506][ C3] [ 18.203873][ C3] [ 18.203873][ C3] other info that might help us debug this: [ 18.204019][ C3] Possible interrupt unsafe locking scenario: [ 18.204019][ C3] [ 18.204173][ C3] CPU0 CPU1 [ 18.204271][ C3] ---- ---- [ 18.204371][ C3] lock(acaddr_hash_lock); [ 18.204472][ C3] local_irq_disable(); [ 18.204595][ C3] lock(&ndev->lock); [ 18.204723][ C3] lock(acaddr_hash_lock); [ 18.204849][ C3] [ 18.204924][ C3] lock(&ndev->lock); [ 18.205000][ C3] [ 18.205000][ C3] *** DEADLOCK *** [ 18.205000][ C3] [ 18.205154][ C3] 6 locks held by mausezahn/387: [ 18.205256][ C3] #0: ffffffff97777d20 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 18.205433][ C3] #1: ffffffff97777d20 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 18.205610][ C3] #2: ffffffff97777d20 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 18.205788][ C3] #3: ffffffff97777cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1fe/0x1b60 [ 18.205966][ C3] #4: ffffffff97777d20 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 18.206147][ C3] #5: ffffffff97777d20 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 18.206323][ C3] [ 18.206323][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 18.206496][ C3] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 18.206601][ C3] HARDIRQ-ON-W at: [ 18.206679][ C3] __lock_acquire+0x378/0xc10 [ 18.206809][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.206934][ C3] _raw_spin_lock+0x33/0x40 [ 18.207065][ C3] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 18.207223][ C3] __ipv6_dev_ac_inc+0x57e/0x930 [ 18.207352][ C3] addrconf_join_anycast+0x1bc/0x260 [ 18.207481][ C3] __ipv6_ifa_notify+0x75b/0xad0 [ 18.207607][ C3] addrconf_dad_completed+0x14b/0xe10 [ 18.207760][ C3] addrconf_dad_begin+0x2e1/0x540 [ 18.207886][ C3] addrconf_dad_work+0x170/0x930 [ 18.208012][ C3] process_one_work+0xdf8/0x1410 [ 18.208143][ C3] worker_thread+0x4f1/0xd60 [ 18.208270][ C3] kthread+0x367/0x460 [ 18.208398][ C3] ret_from_fork+0x474/0x6b0 [ 18.208531][ C3] ret_from_fork_asm+0x11/0x20 [ 18.208657][ C3] SOFTIRQ-ON-W at: [ 18.208732][ C3] __lock_acquire+0x378/0xc10 [ 18.208855][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.209013][ C3] _raw_spin_lock+0x33/0x40 [ 18.209141][ C3] __ipv6_dev_ac_dec+0x236/0x5d0 [ 18.209266][ C3] addrconf_leave_anycast+0x1bc/0x260 [ 18.209418][ C3] __ipv6_ifa_notify+0x6b4/0xad0 [ 18.209544][ C3] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 18.209694][ C3] addrconf_notify+0x339/0xf30 [ 18.209819][ C3] notifier_call_chain+0xb0/0x320 [ 18.209943][ C3] __netdev_upper_dev_link+0x3a5/0x590 [ 18.210104][ C3] netdev_master_upper_dev_link+0x86/0xb0 [ 18.210256][ C3] vrf_add_slave+0xdd/0x210 [vrf] [ 18.210383][ C3] do_set_master+0x357/0x580 [ 18.210514][ C3] do_setlink.isra.0+0xa31/0x2750 [ 18.210640][ C3] rtnl_newlink+0x8d1/0xef0 [ 18.210774][ C3] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.210900][ C3] netlink_rcv_skb+0x14e/0x3a0 [ 18.211027][ C3] netlink_unicast+0x486/0x750 [ 18.211156][ C3] netlink_sendmsg+0x735/0xc60 [ 18.211281][ C3] ____sys_sendmsg+0x419/0x850 [ 18.211411][ C3] ___sys_sendmsg+0x14e/0x1d0 [ 18.211536][ C3] __sys_sendmsg+0x145/0x1f0 [ 18.211662][ C3] do_syscall_64+0x117/0x590 [ 18.211790][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.211943][ C3] INITIAL USE at: [ 18.212019][ C3] __lock_acquire+0x378/0xc10 [ 18.212148][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.212271][ C3] _raw_spin_lock+0x33/0x40 [ 18.212396][ C3] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 18.212547][ C3] __ipv6_dev_ac_inc+0x57e/0x930 [ 18.212673][ C3] addrconf_join_anycast+0x1bc/0x260 [ 18.212800][ C3] __ipv6_ifa_notify+0x75b/0xad0 [ 18.212925][ C3] addrconf_dad_completed+0x14b/0xe10 [ 18.213050][ C3] addrconf_dad_begin+0x2e1/0x540 [ 18.213185][ C3] addrconf_dad_work+0x170/0x930 [ 18.213309][ C3] process_one_work+0xdf8/0x1410 [ 18.213435][ C3] worker_thread+0x4f1/0xd60 [ 18.213565][ C3] kthread+0x367/0x460 [ 18.213689][ C3] ret_from_fork+0x474/0x6b0 [ 18.213813][ C3] ret_from_fork_asm+0x11/0x20 [ 18.213937][ C3] } [ 18.213989][ C3] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 18.214145][ C3] ... acquired at: [ 18.214222][ C3] __lock_acquire+0x508/0xc10 [ 18.214323][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.214424][ C3] _raw_spin_lock+0x33/0x40 [ 18.214525][ C3] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 18.214650][ C3] __ipv6_dev_ac_inc+0x57e/0x930 [ 18.214752][ C3] addrconf_join_anycast+0x1bc/0x260 [ 18.214858][ C3] __ipv6_ifa_notify+0x75b/0xad0 [ 18.214958][ C3] addrconf_dad_completed+0x14b/0xe10 [ 18.215061][ C3] addrconf_dad_begin+0x2e1/0x540 [ 18.215161][ C3] addrconf_dad_work+0x170/0x930 [ 18.215262][ C3] process_one_work+0xdf8/0x1410 [ 18.215367][ C3] worker_thread+0x4f1/0xd60 [ 18.215469][ C3] kthread+0x367/0x460 [ 18.215546][ C3] ret_from_fork+0x474/0x6b0 [ 18.215649][ C3] ret_from_fork_asm+0x11/0x20 [ 18.215751][ C3] [ 18.215803][ C3] -> (&ndev->lock){++.-}-{3:3} { [ 18.215906][ C3] HARDIRQ-ON-W at: [ 18.215987][ C3] __lock_acquire+0x378/0xc10 [ 18.216115][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.216244][ C3] _raw_write_lock_bh+0x38/0x50 [ 18.216373][ C3] addrconf_permanent_addr+0x108/0x9c0 [ 18.216498][ C3] addrconf_notify+0x151/0xf30 [ 18.216625][ C3] notifier_call_chain+0xb0/0x320 [ 18.216752][ C3] __dev_notify_flags+0xde/0x280 [ 18.216878][ C3] netif_change_flags+0xfe/0x190 [ 18.217004][ C3] do_setlink.isra.0+0x1cc3/0x2750 [ 18.217135][ C3] rtnl_newlink+0x8d1/0xef0 [ 18.217262][ C3] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.217389][ C3] netlink_rcv_skb+0x14e/0x3a0 [ 18.217517][ C3] netlink_unicast+0x486/0x750 [ 18.217645][ C3] netlink_sendmsg+0x735/0xc60 [ 18.217772][ C3] ____sys_sendmsg+0x419/0x850 [ 18.217898][ C3] ___sys_sendmsg+0x14e/0x1d0 [ 18.218025][ C3] __sys_sendmsg+0x145/0x1f0 [ 18.218155][ C3] do_syscall_64+0x117/0x590 [ 18.218285][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.218435][ C3] HARDIRQ-ON-R at: [ 18.218513][ C3] __lock_acquire+0x378/0xc10 [ 18.218641][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.218768][ C3] _raw_read_lock_bh+0x44/0x80 [ 18.218895][ C3] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 18.219047][ C3] inet6_fill_link_af+0x5c/0xe0 [ 18.219181][ C3] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 18.219331][ C3] rtnl_getlink+0x9c9/0xeb0 [ 18.219456][ C3] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.219582][ C3] netlink_rcv_skb+0x14e/0x3a0 [ 18.219710][ C3] netlink_unicast+0x486/0x750 [ 18.219836][ C3] netlink_sendmsg+0x735/0xc60 [ 18.219964][ C3] ____sys_sendmsg+0x419/0x850 [ 18.220094][ C3] ___sys_sendmsg+0x14e/0x1d0 [ 18.220220][ C3] __sys_sendmsg+0x145/0x1f0 [ 18.220345][ C3] do_syscall_64+0x117/0x590 [ 18.220469][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.220619][ C3] IN-SOFTIRQ-R at: [ 18.220697][ C3] __lock_acquire+0x378/0xc10 [ 18.220829][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.220955][ C3] _raw_read_lock_bh+0x44/0x80 [ 18.221085][ C3] ipv6_get_lladdr+0xa8/0x3f0 [ 18.221211][ C3] ndisc_send_ns+0xf3/0x120 [ 18.221340][ C3] ndisc_solicit+0x314/0x480 [ 18.221467][ C3] neigh_probe+0xb3/0x100 [ 18.221593][ C3] __neigh_event_send+0x802/0x1070 [ 18.221718][ C3] neigh_resolve_output+0xbe/0x140 [ 18.221842][ C3] ip6_finish_output2+0x423/0x1300 [ 18.221966][ C3] ip6_finish_output+0x646/0xda0 [ 18.222097][ C3] ip6_output+0x23f/0x7f0 [ 18.222222][ C3] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 18.222372][ C3] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 18.222498][ C3] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 18.222647][ C3] dev_hard_start_xmit+0xf8/0x690 [ 18.222775][ C3] __dev_queue_xmit+0xbf4/0x1b60 [ 18.222899][ C3] ip_finish_output2+0x5b9/0x1bc0 [ 18.223025][ C3] ip_output+0x1ca/0x660 [ 18.223156][ C3] ip_rcv+0xdc/0x3d0 [ 18.223257][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 18.223409][ C3] process_backlog+0x2bc/0x1490 [ 18.223536][ C3] __napi_poll+0xa7/0x3b0 [ 18.223665][ C3] net_rx_action+0x513/0xf50 [ 18.223790][ C3] handle_softirqs+0x1d8/0x940 [ 18.223917][ C3] do_softirq+0xa9/0xe0 [ 18.224043][ C3] __local_bh_enable_ip+0x113/0x140 [ 18.224173][ C3] __dev_queue_xmit+0x95b/0x1b60 [ 18.224298][ C3] packet_snd+0xfad/0x1990 [ 18.224423][ C3] __sys_sendto+0x2c9/0x400 [ 18.224547][ C3] __x64_sys_sendto+0xe4/0x1f0 [ 18.224673][ C3] do_syscall_64+0x117/0x590 [ 18.224798][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.224951][ C3] INITIAL USE at: [ 18.225031][ C3] __lock_acquire+0x378/0xc10 [ 18.225162][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.225285][ C3] _raw_write_lock_bh+0x38/0x50 [ 18.225415][ C3] addrconf_permanent_addr+0x108/0x9c0 [ 18.225540][ C3] addrconf_notify+0x151/0xf30 [ 18.225667][ C3] notifier_call_chain+0xb0/0x320 [ 18.225791][ C3] __dev_notify_flags+0xde/0x280 [ 18.225916][ C3] netif_change_flags+0xfe/0x190 [ 18.226042][ C3] do_setlink.isra.0+0x1cc3/0x2750 [ 18.226173][ C3] rtnl_newlink+0x8d1/0xef0 [ 18.226298][ C3] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.226424][ C3] netlink_rcv_skb+0x14e/0x3a0 [ 18.226550][ C3] netlink_unicast+0x486/0x750 [ 18.226676][ C3] netlink_sendmsg+0x735/0xc60 [ 18.226803][ C3] ____sys_sendmsg+0x419/0x850 [ 18.226929][ C3] ___sys_sendmsg+0x14e/0x1d0 [ 18.227061][ C3] __sys_sendmsg+0x145/0x1f0 [ 18.227190][ C3] do_syscall_64+0x117/0x590 [ 18.227317][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.227467][ C3] INITIAL READ USE at: [ 18.227542][ C3] __lock_acquire+0x378/0xc10 [ 18.227668][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.227800][ C3] _raw_read_lock_bh+0x44/0x80 [ 18.227925][ C3] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 18.228079][ C3] inet6_fill_link_af+0x5c/0xe0 [ 18.228204][ C3] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 18.228354][ C3] rtnl_getlink+0x9c9/0xeb0 [ 18.228484][ C3] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.228610][ C3] netlink_rcv_skb+0x14e/0x3a0 [ 18.228741][ C3] netlink_unicast+0x486/0x750 [ 18.228865][ C3] netlink_sendmsg+0x735/0xc60 [ 18.228990][ C3] ____sys_sendmsg+0x419/0x850 [ 18.229128][ C3] ___sys_sendmsg+0x14e/0x1d0 [ 18.229252][ C3] __sys_sendmsg+0x145/0x1f0 [ 18.229376][ C3] do_syscall_64+0x117/0x590 [ 18.229504][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.229653][ C3] } [ 18.229702][ C3] ... key at: [] __key.37+0x0/0x40 [ 18.229856][ C3] ... acquired at: [ 18.229933][ C3] mark_lock+0x1d7/0xa00 [ 18.230032][ C3] mark_usage+0x42/0x170 [ 18.230135][ C3] __lock_acquire+0x378/0xc10 [ 18.230234][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.230333][ C3] _raw_read_lock_bh+0x44/0x80 [ 18.230436][ C3] ipv6_get_lladdr+0xa8/0x3f0 [ 18.230540][ C3] ndisc_send_ns+0xf3/0x120 [ 18.230643][ C3] ndisc_solicit+0x314/0x480 [ 18.230742][ C3] neigh_probe+0xb3/0x100 [ 18.230841][ C3] __neigh_event_send+0x802/0x1070 [ 18.230941][ C3] neigh_resolve_output+0xbe/0x140 [ 18.231042][ C3] ip6_finish_output2+0x423/0x1300 [ 18.231146][ C3] ip6_finish_output+0x646/0xda0 [ 18.231247][ C3] ip6_output+0x23f/0x7f0 [ 18.231346][ C3] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 18.231471][ C3] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 18.231572][ C3] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 18.231700][ C3] dev_hard_start_xmit+0xf8/0x690 [ 18.231802][ C3] __dev_queue_xmit+0xbf4/0x1b60 [ 18.231903][ C3] ip_finish_output2+0x5b9/0x1bc0 [ 18.232007][ C3] ip_output+0x1ca/0x660 [ 18.232114][ C3] ip_rcv+0xdc/0x3d0 [ 18.232191][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 18.232318][ C3] process_backlog+0x2bc/0x1490 [ 18.232418][ C3] __napi_poll+0xa7/0x3b0 [ 18.232517][ C3] net_rx_action+0x513/0xf50 [ 18.232623][ C3] handle_softirqs+0x1d8/0x940 [ 18.232723][ C3] do_softirq+0xa9/0xe0 [ 18.232799][ C3] __local_bh_enable_ip+0x113/0x140 [ 18.232900][ C3] __dev_queue_xmit+0x95b/0x1b60 [ 18.233000][ C3] packet_snd+0xfad/0x1990 [ 18.233104][ C3] __sys_sendto+0x2c9/0x400 [ 18.233204][ C3] __x64_sys_sendto+0xe4/0x1f0 [ 18.233370][ C3] do_syscall_64+0x117/0x590 [ 18.233470][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.233599][ C3] [ 18.233650][ C3] [ 18.233650][ C3] stack backtrace: [ 18.233780][ C3] CPU: 3 UID: 0 PID: 387 Comm: mausezahn Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 18.233783][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.233785][ C3] Call Trace: [ 18.233787][ C3] [ 18.233788][ C3] dump_stack_lvl+0x6f/0xa0 [ 18.233792][ C3] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 18.233795][ C3] mark_lock_irq+0x989/0x9c0 [ 18.233798][ C3] mark_lock+0x1d7/0xa00 [ 18.233800][ C3] mark_usage+0x42/0x170 [ 18.233801][ C3] __lock_acquire+0x378/0xc10 [ 18.233803][ C3] ? __lock_acquire+0x508/0xc10 [ 18.233805][ C3] lock_acquire.part.0+0xbc/0x260 [ 18.233807][ C3] ? ipv6_get_lladdr+0xa8/0x3f0 [ 18.233809][ C3] ? rcu_is_watching+0x15/0xd0 [ 18.233812][ C3] ? lock_acquire+0x134/0x160 [ 18.233814][ C3] _raw_read_lock_bh+0x44/0x80 [ 18.233816][ C3] ? ipv6_get_lladdr+0xa8/0x3f0 [ 18.233818][ C3] ipv6_get_lladdr+0xa8/0x3f0 [ 18.233820][ C3] ndisc_send_ns+0xf3/0x120 [ 18.233821][ C3] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 18.233824][ C3] ? ndisc_parse_options+0x30/0x30 [ 18.233825][ C3] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 18.233827][ C3] ndisc_solicit+0x314/0x480 [ 18.233829][ C3] ? ndisc_send_ns+0x120/0x120 [ 18.233831][ C3] ? neigh_probe+0x62/0x100 [ 18.233833][ C3] neigh_probe+0xb3/0x100 [ 18.233835][ C3] __neigh_event_send+0x802/0x1070 [ 18.233837][ C3] ? warn_bogus_irq_restore+0x1/0x20 [ 18.233839][ C3] ? ___neigh_create+0x811/0x1070 [ 18.233842][ C3] neigh_resolve_output+0xbe/0x140 [ 18.233844][ C3] ip6_finish_output2+0x423/0x1300 [ 18.233846][ C3] ? ip6_xmit+0x2000/0x2000 [ 18.233848][ C3] ? lock_acquire.part.0+0xbc/0x260 [ 18.233849][ C3] ? find_held_lock+0x2b/0x80 [ 18.233852][ C3] ? __lock_release.isra.0+0x6b/0x1a0 [ 18.233854][ C3] ? ip6_mtu+0x15d/0x310 [ 18.233856][ C3] ip6_finish_output+0x646/0xda0 [ 18.233858][ C3] ip6_output+0x23f/0x7f0 [ 18.233860][ C3] ? ip6_finish_output+0xda0/0xda0 [ 18.233861][ C3] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 18.233865][ C3] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 18.233868][ C3] ? ip_route_input+0x420/0x420 [ip6_tunnel] [ 18.233870][ C3] ? pskb_expand_head+0x4ac/0xf50 [ 18.233872][ C3] ? __lock_acquire+0x508/0xc10 [ 18.233875][ C3] ? __pskb_copy_fclone+0x1080/0x1080 [ 18.233877][ C3] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 18.233879][ C3] ? __ipv6_chk_addr_and_flags+0x1b0/0x5f0 [ 18.233882][ C3] ? gre_build_header+0xa70/0xa70 [ip6_gre] [ 18.233884][ C3] ? ip6_tnl_xmit_ctl+0x21e/0x390 [ip6_tunnel] [ 18.233885][ C3] ? __asan_memcpy+0x3c/0x60 [ 18.233890][ C3] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 18.233892][ C3] ? __gre6_xmit+0x1910/0x1910 [ip6_gre] [ 18.233893][ C3] ? sock_def_readable+0x156/0x490 [ 18.233896][ C3] ? find_held_lock+0x2b/0x80 [ 18.233899][ C3] ? dev_queue_xmit_nit+0x642/0x9e0 [ 18.233902][ C3] dev_hard_start_xmit+0xf8/0x690 [ 18.233904][ C3] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 18.233906][ C3] ? rcu_is_watching+0x15/0xd0 [ 18.233908][ C3] __dev_queue_xmit+0xbf4/0x1b60 [ 18.233910][ C3] ? __lock_acquire+0x508/0xc10 [ 18.233912][ C3] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.233914][ C3] ? find_held_lock+0x2b/0x80 [ 18.233916][ C3] ? __lock_release.isra.0+0x6b/0x1a0 [ 18.233919][ C3] ? ___neigh_create+0x811/0x1070 [ 18.233920][ C3] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 18.233923][ C3] ip_finish_output2+0x5b9/0x1bc0 [ 18.233925][ C3] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 18.233927][ C3] ? ip4_dst_hoplimit+0x320/0x320 [ 18.233929][ C3] ? rcu_is_watching+0x15/0xd0 [ 18.233932][ C3] ip_output+0x1ca/0x660 [ 18.233933][ C3] ? ip_finish_output+0x460/0x460 [ 18.233934][ C3] ? ip4_frag_init+0x720/0x720 [ 18.233937][ C3] ? ip_forward+0xfa7/0x1570 [ 18.233939][ C3] ? process_backlog+0x561/0x1490 [ 18.233940][ C3] ip_rcv+0xdc/0x3d0 [ 18.233942][ C3] ? ip_local_deliver+0x4c0/0x4c0 [ 18.233945][ C3] ? mark_usage+0x61/0x170 [ 18.233946][ C3] ? __lock_acquire+0x508/0xc10 [ 18.233947][ C3] ? init_data_structures_once.part.0+0x1a7/0x450 [ 18.233949][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 18.233951][ C3] ? lock_acquire.part.0+0xbc/0x260 [ 18.233952][ C3] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 18.233954][ C3] ? rcu_is_watching+0x15/0xd0 [ 18.233957][ C3] process_backlog+0x2bc/0x1490 [ 18.233959][ C3] __napi_poll+0xa7/0x3b0 [ 18.233960][ C3] net_rx_action+0x513/0xf50 [ 18.233962][ C3] ? __napi_poll+0x3b0/0x3b0 [ 18.233964][ C3] ? find_held_lock+0x2b/0x80 [ 18.233968][ C3] ? rcu_is_watching+0x15/0xd0 [ 18.233970][ C3] handle_softirqs+0x1d8/0x940 [ 18.233971][ C3] ? rcu_is_watching+0x15/0xd0 [ 18.233973][ C3] ? _local_bh_enable+0xd0/0xd0 [ 18.233975][ C3] ? trace_csd_function_exit+0xb3/0x1a0 [ 18.233977][ C3] ? rcu_is_watching+0x15/0xd0 [ 18.233979][ C3] do_softirq+0xa9/0xe0 [ 18.233981][ C3] [ 18.233981][ C3] [ 18.233982][ C3] ? __dev_queue_xmit+0x946/0x1b60 [ 18.233984][ C3] __local_bh_enable_ip+0x113/0x140 [ 18.233985][ C3] __dev_queue_xmit+0x95b/0x1b60 [ 18.233988][ C3] ? _copy_from_iter+0x1bb/0x1810 [ 18.233992][ C3] ? _copy_from_iter_flushcache+0x1970/0x1970 [ 18.233994][ C3] ? net_dim+0x730/0xd70 [ 18.233996][ C3] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.234000][ C3] ? packet_release+0xc70/0xc70 [ 18.234002][ C3] packet_snd+0xfad/0x1990 [ 18.234005][ C3] ? tpacket_snd+0x19e0/0x19e0 [ 18.234007][ C3] ? __might_fault+0x97/0x140 [ 18.234010][ C3] ? __might_fault+0x97/0x140 [ 18.234012][ C3] ? __might_fault+0x97/0x140 [ 18.234013][ C3] __sys_sendto+0x2c9/0x400 [ 18.234015][ C3] ? __ia32_sys_getpeername+0xd0/0xd0 [ 18.234018][ C3] ? sock_ioctl+0x3cb/0x5f0 [ 18.234021][ C3] ? do_user_addr_fault+0x325/0xe30 [ 18.234026][ C3] __x64_sys_sendto+0xe4/0x1f0 [ 18.234028][ C3] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 18.234031][ C3] ? lockdep_hardirqs_on+0x8c/0x130 [ 18.234032][ C3] ? do_syscall_64+0x82/0x590 [ 18.234033][ C3] do_syscall_64+0x117/0x590 [ 18.234035][ C3] ? trace_hardirqs_off+0xd/0x30 [ 18.234036][ C3] ? exc_page_fault+0xee/0x100 [ 18.234038][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.234040][ C3] RIP: 0033:0x7fb48112408e [ 18.234043][ C3] 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 [ 18.234045][ C3] RSP: 002b:00007ffdd9adab70 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 18.234048][ C3] RAX: ffffffffffffffda RBX: 000055f06ed69b22 RCX: 00007fb48112408e [ 18.234049][ C3] RDX: 0000000000000062 RSI: 000055f06ed69b22 RDI: 0000000000000005 [ 18.234050][ C3] RBP: 00007ffdd9adab80 R08: 00007ffdd9adabd0 R09: 0000000000000014 [ 18.234051][ C3] R10: 0000000000000000 R11: 0000000000000202 R12: 000055f06ed69830 [ 18.234052][ C3] R13: 0000000000000062 R14: 0000000000000005 R15: 000055f06ed69830 [ 18.234058][ C3]