[ 10.496211][ T264] 8021q: 802.1Q VLAN Support v1.8 [ 10.619328][ T269] gre: GRE over IPv4 demultiplexer driver [ 10.646526][ T269] ip6_gre: GRE over IPv6 tunneling driver [ 17.071724][ T354] GACT probability NOT on [ 17.192250][ C1] [ 17.192354][ C1] ======================================================== [ 17.192512][ C1] WARNING: possible irq lock inversion dependency detected [ 17.192685][ C1] 7.1.0-rc5-virtme #1 Not tainted [ 17.192785][ C1] -------------------------------------------------------- [ 17.192942][ C1] mausezahn/359 just changed the state of lock: [ 17.193065][ C1] ff110000127fd578 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 17.193251][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 17.193397][ C1] (acaddr_hash_lock){+.+.}-{3:3} [ 17.193399][ C1] [ 17.193399][ C1] [ 17.193399][ C1] and interrupts could create inverse lock ordering between them. [ 17.193399][ C1] [ 17.193778][ C1] [ 17.193778][ C1] other info that might help us debug this: [ 17.193931][ C1] Possible interrupt unsafe locking scenario: [ 17.193931][ C1] [ 17.194076][ C1] CPU0 CPU1 [ 17.194175][ C1] ---- ---- [ 17.194274][ C1] lock(acaddr_hash_lock); [ 17.194374][ C1] local_irq_disable(); [ 17.194500][ C1] lock(&ndev->lock); [ 17.194629][ C1] lock(acaddr_hash_lock); [ 17.194751][ C1] [ 17.194829][ C1] lock(&ndev->lock); [ 17.194909][ C1] [ 17.194909][ C1] *** DEADLOCK *** [ 17.194909][ C1] [ 17.195053][ C1] 6 locks held by mausezahn/359: [ 17.195152][ C1] #0: ffffffffb3b77d20 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 17.195333][ C1] #1: ffffffffb3b77d20 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 17.195505][ C1] #2: ffffffffb3b77d20 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 17.195682][ C1] #3: ffffffffb3b77cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1fe/0x1b60 [ 17.195858][ C1] #4: ffffffffb3b77d20 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 17.196029][ C1] #5: ffffffffb3b77d20 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 17.196201][ C1] [ 17.196201][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 17.196372][ C1] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 17.196476][ C1] HARDIRQ-ON-W at: [ 17.196556][ C1] __lock_acquire+0x378/0xc10 [ 17.196688][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.196814][ C1] _raw_spin_lock+0x33/0x40 [ 17.196940][ C1] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.197086][ C1] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.197211][ C1] addrconf_join_anycast+0x1bc/0x260 [ 17.197333][ C1] __ipv6_ifa_notify+0x75b/0xad0 [ 17.197454][ C1] addrconf_dad_completed+0x14b/0xe10 [ 17.197610][ C1] addrconf_dad_begin+0x2e1/0x540 [ 17.197734][ C1] addrconf_dad_work+0x170/0x930 [ 17.197858][ C1] process_one_work+0xdf8/0x1410 [ 17.197982][ C1] worker_thread+0x4f1/0xd60 [ 17.198104][ C1] kthread+0x367/0x460 [ 17.198230][ C1] ret_from_fork+0x474/0x6b0 [ 17.198354][ C1] ret_from_fork_asm+0x11/0x20 [ 17.198479][ C1] SOFTIRQ-ON-W at: [ 17.198556][ C1] __lock_acquire+0x378/0xc10 [ 17.198685][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.198808][ C1] _raw_spin_lock+0x33/0x40 [ 17.198932][ C1] __ipv6_dev_ac_dec+0x236/0x5d0 [ 17.199055][ C1] addrconf_leave_anycast+0x1bc/0x260 [ 17.199203][ C1] __ipv6_ifa_notify+0x6b4/0xad0 [ 17.199324][ C1] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 17.199475][ C1] addrconf_notify+0x339/0xf30 [ 17.199602][ C1] notifier_call_chain+0xb0/0x320 [ 17.199726][ C1] __netdev_upper_dev_link+0x3a5/0x590 [ 17.199876][ C1] netdev_master_upper_dev_link+0x86/0xb0 [ 17.200024][ C1] vrf_add_slave+0xdd/0x210 [vrf] [ 17.200151][ C1] do_set_master+0x357/0x580 [ 17.200274][ C1] do_setlink.isra.0+0xa31/0x2750 [ 17.200397][ C1] rtnl_newlink+0x8d1/0xef0 [ 17.200521][ C1] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.200649][ C1] netlink_rcv_skb+0x14e/0x3a0 [ 17.200774][ C1] netlink_unicast+0x486/0x750 [ 17.200896][ C1] netlink_sendmsg+0x735/0xc60 [ 17.201020][ C1] ____sys_sendmsg+0x419/0x850 [ 17.201145][ C1] ___sys_sendmsg+0x14e/0x1d0 [ 17.201271][ C1] __sys_sendmsg+0x145/0x1f0 [ 17.201393][ C1] do_syscall_64+0x117/0x590 [ 17.201517][ C1] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.201669][ C1] INITIAL USE at: [ 17.201744][ C1] __lock_acquire+0x378/0xc10 [ 17.201866][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.201990][ C1] _raw_spin_lock+0x33/0x40 [ 17.202113][ C1] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.202259][ C1] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.202386][ C1] addrconf_join_anycast+0x1bc/0x260 [ 17.202510][ C1] __ipv6_ifa_notify+0x75b/0xad0 [ 17.202639][ C1] addrconf_dad_completed+0x14b/0xe10 [ 17.202761][ C1] addrconf_dad_begin+0x2e1/0x540 [ 17.202886][ C1] addrconf_dad_work+0x170/0x930 [ 17.203010][ C1] process_one_work+0xdf8/0x1410 [ 17.203134][ C1] worker_thread+0x4f1/0xd60 [ 17.203257][ C1] kthread+0x367/0x460 [ 17.203380][ C1] ret_from_fork+0x474/0x6b0 [ 17.203503][ C1] ret_from_fork_asm+0x11/0x20 [ 17.203633][ C1] } [ 17.203685][ C1] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 17.203836][ C1] ... acquired at: [ 17.203913][ C1] __lock_acquire+0x508/0xc10 [ 17.204012][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.204110][ C1] _raw_spin_lock+0x33/0x40 [ 17.204212][ C1] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.204337][ C1] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.204435][ C1] addrconf_join_anycast+0x1bc/0x260 [ 17.204538][ C1] __ipv6_ifa_notify+0x75b/0xad0 [ 17.204647][ C1] addrconf_dad_completed+0x14b/0xe10 [ 17.204745][ C1] addrconf_dad_begin+0x2e1/0x540 [ 17.204843][ C1] addrconf_dad_work+0x170/0x930 [ 17.204942][ C1] process_one_work+0xdf8/0x1410 [ 17.205044][ C1] worker_thread+0x4f1/0xd60 [ 17.205148][ C1] kthread+0x367/0x460 [ 17.205223][ C1] ret_from_fork+0x474/0x6b0 [ 17.205322][ C1] ret_from_fork_asm+0x11/0x20 [ 17.205424][ C1] [ 17.205479][ C1] -> (&ndev->lock){++.-}-{3:3} { [ 17.205584][ C1] HARDIRQ-ON-W at: [ 17.205661][ C1] __lock_acquire+0x378/0xc10 [ 17.205784][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.205906][ C1] _raw_write_lock_bh+0x38/0x50 [ 17.206029][ C1] addrconf_permanent_addr+0x108/0x9c0 [ 17.206152][ C1] addrconf_notify+0x151/0xf30 [ 17.206280][ C1] notifier_call_chain+0xb0/0x320 [ 17.206403][ C1] __dev_notify_flags+0xde/0x280 [ 17.206530][ C1] netif_change_flags+0xfe/0x190 [ 17.206662][ C1] do_setlink.isra.0+0x1cc3/0x2750 [ 17.206785][ C1] rtnl_newlink+0x8d1/0xef0 [ 17.206910][ C1] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.207032][ C1] netlink_rcv_skb+0x14e/0x3a0 [ 17.207154][ C1] netlink_unicast+0x486/0x750 [ 17.207279][ C1] netlink_sendmsg+0x735/0xc60 [ 17.207406][ C1] ____sys_sendmsg+0x419/0x850 [ 17.207530][ C1] ___sys_sendmsg+0x14e/0x1d0 [ 17.207659][ C1] __sys_sendmsg+0x145/0x1f0 [ 17.207782][ C1] do_syscall_64+0x117/0x590 [ 17.207911][ C1] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.208057][ C1] HARDIRQ-ON-R at: [ 17.208132][ C1] __lock_acquire+0x378/0xc10 [ 17.208255][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.208377][ C1] _raw_read_lock_bh+0x44/0x80 [ 17.208501][ C1] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.208654][ C1] inet6_fill_link_af+0x5c/0xe0 [ 17.208781][ C1] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.208933][ C1] rtnl_getlink+0x9c9/0xeb0 [ 17.209059][ C1] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.209186][ C1] netlink_rcv_skb+0x14e/0x3a0 [ 17.209310][ C1] netlink_unicast+0x486/0x750 [ 17.209431][ C1] netlink_sendmsg+0x735/0xc60 [ 17.209554][ C1] ____sys_sendmsg+0x419/0x850 [ 17.209682][ C1] ___sys_sendmsg+0x14e/0x1d0 [ 17.209805][ C1] __sys_sendmsg+0x145/0x1f0 [ 17.209929][ C1] do_syscall_64+0x117/0x590 [ 17.210052][ C1] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.210199][ C1] IN-SOFTIRQ-R at: [ 17.210274][ C1] __lock_acquire+0x378/0xc10 [ 17.210397][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.210520][ C1] _raw_read_lock_bh+0x44/0x80 [ 17.210646][ C1] ipv6_get_lladdr+0xa8/0x3f0 [ 17.210769][ C1] ndisc_send_ns+0xf3/0x120 [ 17.210894][ C1] ndisc_solicit+0x314/0x480 [ 17.211017][ C1] neigh_probe+0xb3/0x100 [ 17.211141][ C1] __neigh_event_send+0x802/0x1070 [ 17.211264][ C1] neigh_resolve_output+0xbe/0x140 [ 17.211391][ C1] ip6_finish_output2+0x423/0x1300 [ 17.211515][ C1] ip6_finish_output+0x646/0xda0 [ 17.211645][ C1] ip6_output+0x23f/0x7f0 [ 17.211770][ C1] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.211919][ C1] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.212047][ C1] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.212196][ C1] dev_hard_start_xmit+0xf8/0x690 [ 17.212320][ C1] __dev_queue_xmit+0xbf4/0x1b60 [ 17.212450][ C1] ip_finish_output2+0x5b9/0x1bc0 [ 17.212575][ C1] ip_output+0x1ca/0x660 [ 17.212708][ C1] ip_rcv+0xdc/0x3d0 [ 17.212807][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 17.212955][ C1] process_backlog+0x2bc/0x1490 [ 17.213082][ C1] __napi_poll+0xa7/0x3b0 [ 17.213206][ C1] net_rx_action+0x513/0xf50 [ 17.213329][ C1] handle_softirqs+0x1d8/0x940 [ 17.213453][ C1] do_softirq+0xa9/0xe0 [ 17.213576][ C1] __local_bh_enable_ip+0x113/0x140 [ 17.213705][ C1] __dev_queue_xmit+0x95b/0x1b60 [ 17.213829][ C1] packet_snd+0xfad/0x1990 [ 17.213955][ C1] __sys_sendto+0x2c9/0x400 [ 17.214079][ C1] __x64_sys_sendto+0xe4/0x1f0 [ 17.214202][ C1] do_syscall_64+0x117/0x590 [ 17.214325][ C1] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.214471][ C1] INITIAL USE at: [ 17.214546][ C1] __lock_acquire+0x378/0xc10 [ 17.214673][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.214795][ C1] _raw_write_lock_bh+0x38/0x50 [ 17.214919][ C1] addrconf_permanent_addr+0x108/0x9c0 [ 17.215046][ C1] addrconf_notify+0x151/0xf30 [ 17.215169][ C1] notifier_call_chain+0xb0/0x320 [ 17.215301][ C1] __dev_notify_flags+0xde/0x280 [ 17.215423][ C1] netif_change_flags+0xfe/0x190 [ 17.215548][ C1] do_setlink.isra.0+0x1cc3/0x2750 [ 17.215675][ C1] rtnl_newlink+0x8d1/0xef0 [ 17.215802][ C1] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.215927][ C1] netlink_rcv_skb+0x14e/0x3a0 [ 17.216051][ C1] netlink_unicast+0x486/0x750 [ 17.216174][ C1] netlink_sendmsg+0x735/0xc60 [ 17.216299][ C1] ____sys_sendmsg+0x419/0x850 [ 17.216423][ C1] ___sys_sendmsg+0x14e/0x1d0 [ 17.216546][ C1] __sys_sendmsg+0x145/0x1f0 [ 17.216672][ C1] do_syscall_64+0x117/0x590 [ 17.216799][ C1] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.216946][ C1] INITIAL READ USE at: [ 17.217018][ C1] __lock_acquire+0x378/0xc10 [ 17.217140][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.217262][ C1] _raw_read_lock_bh+0x44/0x80 [ 17.217389][ C1] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.217536][ C1] inet6_fill_link_af+0x5c/0xe0 [ 17.217662][ C1] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.217809][ C1] rtnl_getlink+0x9c9/0xeb0 [ 17.217932][ C1] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.218053][ C1] netlink_rcv_skb+0x14e/0x3a0 [ 17.218181][ C1] netlink_unicast+0x486/0x750 [ 17.218304][ C1] netlink_sendmsg+0x735/0xc60 [ 17.218425][ C1] ____sys_sendmsg+0x419/0x850 [ 17.218548][ C1] ___sys_sendmsg+0x14e/0x1d0 [ 17.218674][ C1] __sys_sendmsg+0x145/0x1f0 [ 17.218795][ C1] do_syscall_64+0x117/0x590 [ 17.218917][ C1] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.219065][ C1] } [ 17.219120][ C1] ... key at: [] __key.37+0x0/0x40 [ 17.219270][ C1] ... acquired at: [ 17.219346][ C1] mark_lock+0x1d7/0xa00 [ 17.219445][ C1] mark_usage+0x42/0x170 [ 17.219543][ C1] __lock_acquire+0x378/0xc10 [ 17.219651][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.219753][ C1] _raw_read_lock_bh+0x44/0x80 [ 17.219856][ C1] ipv6_get_lladdr+0xa8/0x3f0 [ 17.219957][ C1] ndisc_send_ns+0xf3/0x120 [ 17.220054][ C1] ndisc_solicit+0x314/0x480 [ 17.220154][ C1] neigh_probe+0xb3/0x100 [ 17.220255][ C1] __neigh_event_send+0x802/0x1070 [ 17.220352][ C1] neigh_resolve_output+0xbe/0x140 [ 17.220451][ C1] ip6_finish_output2+0x423/0x1300 [ 17.220547][ C1] ip6_finish_output+0x646/0xda0 [ 17.220649][ C1] ip6_output+0x23f/0x7f0 [ 17.220747][ C1] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.220873][ C1] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.220977][ C1] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.221103][ C1] dev_hard_start_xmit+0xf8/0x690 [ 17.221201][ C1] __dev_queue_xmit+0xbf4/0x1b60 [ 17.221303][ C1] ip_finish_output2+0x5b9/0x1bc0 [ 17.221402][ C1] ip_output+0x1ca/0x660 [ 17.221506][ C1] ip_rcv+0xdc/0x3d0 [ 17.221580][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 17.221708][ C1] process_backlog+0x2bc/0x1490 [ 17.221807][ C1] __napi_poll+0xa7/0x3b0 [ 17.221906][ C1] net_rx_action+0x513/0xf50 [ 17.222004][ C1] handle_softirqs+0x1d8/0x940 [ 17.222106][ C1] do_softirq+0xa9/0xe0 [ 17.222186][ C1] __local_bh_enable_ip+0x113/0x140 [ 17.222289][ C1] __dev_queue_xmit+0x95b/0x1b60 [ 17.222389][ C1] packet_snd+0xfad/0x1990 [ 17.222490][ C1] __sys_sendto+0x2c9/0x400 [ 17.222589][ C1] __x64_sys_sendto+0xe4/0x1f0 [ 17.222693][ C1] do_syscall_64+0x117/0x590 [ 17.222791][ C1] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.222918][ C1] [ 17.222968][ C1] [ 17.222968][ C1] stack backtrace: [ 17.223096][ C1] CPU: 1 UID: 0 PID: 359 Comm: mausezahn Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 17.223099][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.223101][ C1] Call Trace: [ 17.223103][ C1] [ 17.223104][ C1] dump_stack_lvl+0x6f/0xa0 [ 17.223110][ C1] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 17.223113][ C1] mark_lock_irq+0x989/0x9c0 [ 17.223116][ C1] mark_lock+0x1d7/0xa00 [ 17.223118][ C1] mark_usage+0x42/0x170 [ 17.223119][ C1] __lock_acquire+0x378/0xc10 [ 17.223120][ C1] ? __lock_acquire+0x508/0xc10 [ 17.223122][ C1] lock_acquire.part.0+0xbc/0x260 [ 17.223124][ C1] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.223126][ C1] ? rcu_is_watching+0x15/0xd0 [ 17.223129][ C1] ? lock_acquire+0x134/0x160 [ 17.223131][ C1] _raw_read_lock_bh+0x44/0x80 [ 17.223133][ C1] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.223134][ C1] ipv6_get_lladdr+0xa8/0x3f0 [ 17.223136][ C1] ndisc_send_ns+0xf3/0x120 [ 17.223138][ C1] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 17.223140][ C1] ? ndisc_parse_options+0x30/0x30 [ 17.223141][ C1] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 17.223144][ C1] ndisc_solicit+0x314/0x480 [ 17.223145][ C1] ? ndisc_send_ns+0x120/0x120 [ 17.223147][ C1] ? neigh_probe+0x62/0x100 [ 17.223150][ C1] neigh_probe+0xb3/0x100 [ 17.223151][ C1] __neigh_event_send+0x802/0x1070 [ 17.223153][ C1] ? warn_bogus_irq_restore+0x1/0x20 [ 17.223156][ C1] ? ___neigh_create+0x811/0x1070 [ 17.223158][ C1] neigh_resolve_output+0xbe/0x140 [ 17.223160][ C1] ip6_finish_output2+0x423/0x1300 [ 17.223163][ C1] ? ip6_xmit+0x2000/0x2000 [ 17.223164][ C1] ? lock_acquire.part.0+0xbc/0x260 [ 17.223165][ C1] ? find_held_lock+0x2b/0x80 [ 17.223168][ C1] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.223170][ C1] ? ip6_mtu+0x15d/0x310 [ 17.223172][ C1] ip6_finish_output+0x646/0xda0 [ 17.223174][ C1] ip6_output+0x23f/0x7f0 [ 17.223176][ C1] ? ip6_finish_output+0xda0/0xda0 [ 17.223178][ C1] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 17.223181][ C1] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.223185][ C1] ? ip_route_input+0x420/0x420 [ip6_tunnel] [ 17.223187][ C1] ? pskb_expand_head+0x4ac/0xf50 [ 17.223190][ C1] ? __lock_acquire+0x508/0xc10 [ 17.223192][ C1] ? __pskb_copy_fclone+0x1080/0x1080 [ 17.223194][ C1] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.223196][ C1] ? __ipv6_chk_addr_and_flags+0x1b0/0x5f0 [ 17.223199][ C1] ? gre_build_header+0xa70/0xa70 [ip6_gre] [ 17.223201][ C1] ? ip6_tnl_xmit_ctl+0x21e/0x390 [ip6_tunnel] [ 17.223203][ C1] ? __asan_memcpy+0x3c/0x60 [ 17.223207][ C1] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.223209][ C1] ? __gre6_xmit+0x1910/0x1910 [ip6_gre] [ 17.223211][ C1] ? sock_def_readable+0x156/0x490 [ 17.223213][ C1] ? find_held_lock+0x2b/0x80 [ 17.223216][ C1] ? dev_queue_xmit_nit+0x642/0x9e0 [ 17.223219][ C1] dev_hard_start_xmit+0xf8/0x690 [ 17.223221][ C1] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.223223][ C1] ? rcu_is_watching+0x15/0xd0 [ 17.223225][ C1] __dev_queue_xmit+0xbf4/0x1b60 [ 17.223228][ C1] ? __lock_acquire+0x508/0xc10 [ 17.223230][ C1] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.223232][ C1] ? find_held_lock+0x2b/0x80 [ 17.223234][ C1] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.223236][ C1] ? ___neigh_create+0x811/0x1070 [ 17.223238][ C1] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.223240][ C1] ip_finish_output2+0x5b9/0x1bc0 [ 17.223242][ C1] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 17.223244][ C1] ? ip4_dst_hoplimit+0x320/0x320 [ 17.223246][ C1] ? rcu_is_watching+0x15/0xd0 [ 17.223249][ C1] ip_output+0x1ca/0x660 [ 17.223250][ C1] ? ip_finish_output+0x460/0x460 [ 17.223251][ C1] ? ip4_frag_init+0x720/0x720 [ 17.223254][ C1] ? ip_forward+0xfa7/0x1570 [ 17.223256][ C1] ? process_backlog+0x561/0x1490 [ 17.223257][ C1] ip_rcv+0xdc/0x3d0 [ 17.223259][ C1] ? ip_local_deliver+0x4c0/0x4c0 [ 17.223262][ C1] ? mark_usage+0x61/0x170 [ 17.223263][ C1] ? __lock_acquire+0x508/0xc10 [ 17.223265][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 17.223266][ C1] ? lock_acquire.part.0+0xbc/0x260 [ 17.223268][ C1] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 17.223270][ C1] ? rcu_is_watching+0x15/0xd0 [ 17.223272][ C1] process_backlog+0x2bc/0x1490 [ 17.223274][ C1] __napi_poll+0xa7/0x3b0 [ 17.223276][ C1] net_rx_action+0x513/0xf50 [ 17.223277][ C1] ? trace_irq_disable.constprop.0+0x9b/0x180 [ 17.223281][ C1] ? __napi_poll+0x3b0/0x3b0 [ 17.223284][ C1] ? rcu_is_watching+0x15/0xd0 [ 17.223286][ C1] ? rcu_is_watching+0x15/0xd0 [ 17.223288][ C1] handle_softirqs+0x1d8/0x940 [ 17.223290][ C1] ? _local_bh_enable+0xd0/0xd0 [ 17.223291][ C1] ? _local_bh_enable+0xd0/0xd0 [ 17.223293][ C1] do_softirq+0xa9/0xe0 [ 17.223295][ C1] [ 17.223295][ C1] [ 17.223296][ C1] ? __dev_queue_xmit+0x946/0x1b60 [ 17.223298][ C1] __local_bh_enable_ip+0x113/0x140 [ 17.223299][ C1] __dev_queue_xmit+0x95b/0x1b60 [ 17.223301][ C1] ? _copy_from_iter+0x1bb/0x1810 [ 17.223306][ C1] ? _copy_from_iter_flushcache+0x1970/0x1970 [ 17.223308][ C1] ? net_dim+0x730/0xd70 [ 17.223310][ C1] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.223313][ C1] ? packet_release+0xc70/0xc70 [ 17.223316][ C1] packet_snd+0xfad/0x1990 [ 17.223319][ C1] ? tpacket_snd+0x19e0/0x19e0 [ 17.223321][ C1] ? __might_fault+0x97/0x140 [ 17.223324][ C1] ? __might_fault+0x97/0x140 [ 17.223325][ C1] ? __might_fault+0x97/0x140 [ 17.223327][ C1] __sys_sendto+0x2c9/0x400 [ 17.223329][ C1] ? __ia32_sys_getpeername+0xd0/0xd0 [ 17.223332][ C1] ? sock_ioctl+0x3cb/0x5f0 [ 17.223335][ C1] ? do_user_addr_fault+0x325/0xe30 [ 17.223339][ C1] __x64_sys_sendto+0xe4/0x1f0 [ 17.223341][ C1] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 17.223343][ C1] ? lockdep_hardirqs_on+0x8c/0x130 [ 17.223344][ C1] ? do_syscall_64+0x82/0x590 [ 17.223346][ C1] do_syscall_64+0x117/0x590 [ 17.223347][ C1] ? trace_hardirqs_off+0xd/0x30 [ 17.223348][ C1] ? exc_page_fault+0xee/0x100 [ 17.223350][ C1] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.223352][ C1] RIP: 0033:0x7f7cd95ed08e [ 17.223355][ C1] 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 [ 17.223357][ C1] RSP: 002b:00007ffc885ac3a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 17.223360][ C1] RAX: ffffffffffffffda RBX: 0000557a49427b22 RCX: 00007f7cd95ed08e [ 17.223361][ C1] RDX: 0000000000000062 RSI: 0000557a49427b22 RDI: 0000000000000005 [ 17.223362][ C1] RBP: 00007ffc885ac3b0 R08: 00007ffc885ac400 R09: 0000000000000014 [ 17.223363][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000557a49427830 [ 17.223364][ C1] R13: 0000000000000062 R14: 0000000000000005 R15: 0000557a49427830 [ 17.223366][ C1]