[ 9.601710][ T186] ip (186) used greatest stack depth: 24120 bytes left [ 11.752050][ T280] ip (280) used greatest stack depth: 24112 bytes left [ 11.841425][ T283] 8021q: 802.1Q VLAN Support v1.8 [ 11.977029][ T289] gre: GRE over IPv4 demultiplexer driver [ 12.013428][ T289] ip6_gre: GRE over IPv6 tunneling driver [ 18.617225][ T382] GACT probability NOT on [ 18.724480][ C0] [ 18.724558][ C0] ======================================================== [ 18.724713][ C0] WARNING: possible irq lock inversion dependency detected [ 18.724864][ C0] 7.1.0-rc5-virtme #1 Not tainted [ 18.724967][ C0] -------------------------------------------------------- [ 18.725121][ C0] mausezahn/387 just changed the state of lock: [ 18.725244][ C0] ff11000005096d78 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 18.725430][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 18.725579][ C0] (acaddr_hash_lock){+.+.}-{3:3} [ 18.725581][ C0] [ 18.725581][ C0] [ 18.725581][ C0] and interrupts could create inverse lock ordering between them. [ 18.725581][ C0] [ 18.725951][ C0] [ 18.725951][ C0] other info that might help us debug this: [ 18.726101][ C0] Possible interrupt unsafe locking scenario: [ 18.726101][ C0] [ 18.726252][ C0] CPU0 CPU1 [ 18.726353][ C0] ---- ---- [ 18.726453][ C0] lock(acaddr_hash_lock); [ 18.726555][ C0] local_irq_disable(); [ 18.726684][ C0] lock(&ndev->lock); [ 18.726807][ C0] lock(acaddr_hash_lock); [ 18.726932][ C0] [ 18.727014][ C0] lock(&ndev->lock); [ 18.727093][ C0] [ 18.727093][ C0] *** DEADLOCK *** [ 18.727093][ C0] [ 18.727243][ C0] 6 locks held by mausezahn/387: [ 18.727343][ C0] #0: ffffffffb5177d20 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 18.727522][ C0] #1: ffffffffb5177d20 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 18.727698][ C0] #2: ffffffffb5177d20 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 18.727874][ C0] #3: ffffffffb5177cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1fe/0x1b60 [ 18.728052][ C0] #4: ffffffffb5177d20 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 18.728226][ C0] #5: ffffffffb5177d20 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 18.728403][ C0] [ 18.728403][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 18.728579][ C0] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 18.728688][ C0] HARDIRQ-ON-W at: [ 18.728766][ C0] __lock_acquire+0x378/0xc10 [ 18.728895][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.729032][ C0] _raw_spin_lock+0x33/0x40 [ 18.729158][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 18.729306][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 18.729429][ C0] addrconf_join_anycast+0x1bc/0x260 [ 18.729554][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 18.729678][ C0] addrconf_dad_completed+0x14b/0xe10 [ 18.729827][ C0] addrconf_dad_begin+0x2e1/0x540 [ 18.729952][ C0] addrconf_dad_work+0x170/0x930 [ 18.730079][ C0] process_one_work+0xdf8/0x1410 [ 18.730205][ C0] worker_thread+0x4f1/0xd60 [ 18.730334][ C0] kthread+0x367/0x460 [ 18.730460][ C0] ret_from_fork+0x474/0x6b0 [ 18.730587][ C0] ret_from_fork_asm+0x11/0x20 [ 18.730714][ C0] SOFTIRQ-ON-W at: [ 18.730790][ C0] __lock_acquire+0x378/0xc10 [ 18.730915][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.731046][ C0] _raw_spin_lock+0x33/0x40 [ 18.731173][ C0] __ipv6_dev_ac_dec+0x236/0x5d0 [ 18.731298][ C0] addrconf_leave_anycast+0x1bc/0x260 [ 18.731448][ C0] __ipv6_ifa_notify+0x6b4/0xad0 [ 18.731574][ C0] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 18.731724][ C0] addrconf_notify+0x339/0xf30 [ 18.731848][ C0] notifier_call_chain+0xb0/0x320 [ 18.731974][ C0] __netdev_upper_dev_link+0x3a5/0x590 [ 18.732126][ C0] netdev_master_upper_dev_link+0x86/0xb0 [ 18.732277][ C0] vrf_add_slave+0xdd/0x210 [vrf] [ 18.732404][ C0] do_set_master+0x357/0x580 [ 18.732530][ C0] do_setlink.isra.0+0xa31/0x2750 [ 18.732656][ C0] rtnl_newlink+0x8d1/0xef0 [ 18.732780][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.732904][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 18.733033][ C0] netlink_unicast+0x486/0x750 [ 18.733160][ C0] netlink_sendmsg+0x735/0xc60 [ 18.733285][ C0] ____sys_sendmsg+0x419/0x850 [ 18.733410][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 18.733535][ C0] __sys_sendmsg+0x145/0x1f0 [ 18.733660][ C0] do_syscall_64+0x117/0x590 [ 18.733784][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.733934][ C0] INITIAL USE at: [ 18.734012][ C0] __lock_acquire+0x378/0xc10 [ 18.734134][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.734257][ C0] _raw_spin_lock+0x33/0x40 [ 18.734381][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 18.734529][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 18.734654][ C0] addrconf_join_anycast+0x1bc/0x260 [ 18.734782][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 18.734906][ C0] addrconf_dad_completed+0x14b/0xe10 [ 18.735035][ C0] addrconf_dad_begin+0x2e1/0x540 [ 18.735161][ C0] addrconf_dad_work+0x170/0x930 [ 18.735285][ C0] process_one_work+0xdf8/0x1410 [ 18.735409][ C0] worker_thread+0x4f1/0xd60 [ 18.735533][ C0] kthread+0x367/0x460 [ 18.735657][ C0] ret_from_fork+0x474/0x6b0 [ 18.735783][ C0] ret_from_fork_asm+0x11/0x20 [ 18.735911][ C0] } [ 18.735964][ C0] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 18.736118][ C0] ... acquired at: [ 18.736193][ C0] __lock_acquire+0x508/0xc10 [ 18.736295][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.736393][ C0] _raw_spin_lock+0x33/0x40 [ 18.736492][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 18.736617][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 18.736716][ C0] addrconf_join_anycast+0x1bc/0x260 [ 18.736815][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 18.736918][ C0] addrconf_dad_completed+0x14b/0xe10 [ 18.737023][ C0] addrconf_dad_begin+0x2e1/0x540 [ 18.737127][ C0] addrconf_dad_work+0x170/0x930 [ 18.737231][ C0] process_one_work+0xdf8/0x1410 [ 18.737334][ C0] worker_thread+0x4f1/0xd60 [ 18.737437][ C0] kthread+0x367/0x460 [ 18.737516][ C0] ret_from_fork+0x474/0x6b0 [ 18.737615][ C0] ret_from_fork_asm+0x11/0x20 [ 18.737713][ C0] [ 18.737763][ C0] -> (&ndev->lock){++.-}-{3:3} { [ 18.737864][ C0] HARDIRQ-ON-W at: [ 18.737942][ C0] __lock_acquire+0x378/0xc10 [ 18.738071][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.738196][ C0] _raw_write_lock_bh+0x38/0x50 [ 18.738320][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 18.738450][ C0] addrconf_notify+0x151/0xf30 [ 18.738575][ C0] notifier_call_chain+0xb0/0x320 [ 18.738702][ C0] __dev_notify_flags+0xde/0x280 [ 18.738828][ C0] netif_change_flags+0xfe/0x190 [ 18.738955][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 18.739082][ C0] rtnl_newlink+0x8d1/0xef0 [ 18.739207][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.739333][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 18.739460][ C0] netlink_unicast+0x486/0x750 [ 18.739584][ C0] netlink_sendmsg+0x735/0xc60 [ 18.739709][ C0] ____sys_sendmsg+0x419/0x850 [ 18.739837][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 18.739964][ C0] __sys_sendmsg+0x145/0x1f0 [ 18.740094][ C0] do_syscall_64+0x117/0x590 [ 18.740218][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.740367][ C0] HARDIRQ-ON-R at: [ 18.740441][ C0] __lock_acquire+0x378/0xc10 [ 18.740567][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.740691][ C0] _raw_read_lock_bh+0x44/0x80 [ 18.740819][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 18.740969][ C0] inet6_fill_link_af+0x5c/0xe0 [ 18.741097][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 18.741248][ C0] rtnl_getlink+0x9c9/0xeb0 [ 18.741373][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.741499][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 18.741626][ C0] netlink_unicast+0x486/0x750 [ 18.741754][ C0] netlink_sendmsg+0x735/0xc60 [ 18.741880][ C0] ____sys_sendmsg+0x419/0x850 [ 18.742009][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 18.742134][ C0] __sys_sendmsg+0x145/0x1f0 [ 18.742259][ C0] do_syscall_64+0x117/0x590 [ 18.742384][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.742533][ C0] IN-SOFTIRQ-R at: [ 18.742609][ C0] __lock_acquire+0x378/0xc10 [ 18.742732][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.742855][ C0] _raw_read_lock_bh+0x44/0x80 [ 18.742984][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 18.743116][ C0] ndisc_send_ns+0xf3/0x120 [ 18.743242][ C0] ndisc_solicit+0x314/0x480 [ 18.743372][ C0] neigh_probe+0xb3/0x100 [ 18.743499][ C0] __neigh_event_send+0x802/0x1070 [ 18.743625][ C0] neigh_resolve_output+0xbe/0x140 [ 18.743752][ C0] ip6_finish_output2+0x423/0x1300 [ 18.743883][ C0] ip6_finish_output+0x646/0xda0 [ 18.744014][ C0] ip6_output+0x23f/0x7f0 [ 18.744140][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 18.744291][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 18.744416][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 18.744567][ C0] dev_hard_start_xmit+0xf8/0x690 [ 18.744695][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 18.744822][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 18.744949][ C0] ip_output+0x1ca/0x660 [ 18.745079][ C0] ip_rcv+0xdc/0x3d0 [ 18.745185][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 18.745337][ C0] process_backlog+0x2bc/0x1490 [ 18.745461][ C0] __napi_poll+0xa7/0x3b0 [ 18.745587][ C0] net_rx_action+0x513/0xf50 [ 18.745779][ C0] handle_softirqs+0x1d8/0x940 [ 18.745906][ C0] do_softirq+0xa9/0xe0 [ 18.746039][ C0] __local_bh_enable_ip+0x113/0x140 [ 18.746227][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 18.746353][ C0] packet_snd+0xfad/0x1990 [ 18.746481][ C0] __sys_sendto+0x2c9/0x400 [ 18.746670][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 18.746798][ C0] do_syscall_64+0x117/0x590 [ 18.746923][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.747139][ C0] INITIAL USE at: [ 18.747216][ C0] __lock_acquire+0x378/0xc10 [ 18.747341][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.747466][ C0] _raw_write_lock_bh+0x38/0x50 [ 18.747654][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 18.747779][ C0] addrconf_notify+0x151/0xf30 [ 18.747904][ C0] notifier_call_chain+0xb0/0x320 [ 18.748093][ C0] __dev_notify_flags+0xde/0x280 [ 18.748221][ C0] netif_change_flags+0xfe/0x190 [ 18.748345][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 18.748534][ C0] rtnl_newlink+0x8d1/0xef0 [ 18.748659][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.748783][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 18.748971][ C0] netlink_unicast+0x486/0x750 [ 18.749102][ C0] netlink_sendmsg+0x735/0xc60 [ 18.749228][ C0] ____sys_sendmsg+0x419/0x850 [ 18.749353][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 18.749542][ C0] __sys_sendmsg+0x145/0x1f0 [ 18.749666][ C0] do_syscall_64+0x117/0x590 [ 18.749792][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.750008][ C0] INITIAL READ USE at: [ 18.750084][ C0] __lock_acquire+0x378/0xc10 [ 18.750210][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.750398][ C0] _raw_read_lock_bh+0x44/0x80 [ 18.750524][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 18.750674][ C0] inet6_fill_link_af+0x5c/0xe0 [ 18.750862][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 18.751019][ C0] rtnl_getlink+0x9c9/0xeb0 [ 18.751144][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 18.751333][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 18.751463][ C0] netlink_unicast+0x486/0x750 [ 18.751589][ C0] netlink_sendmsg+0x735/0xc60 [ 18.751779][ C0] ____sys_sendmsg+0x419/0x850 [ 18.751904][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 18.752032][ C0] __sys_sendmsg+0x145/0x1f0 [ 18.752158][ C0] do_syscall_64+0x117/0x590 [ 18.752347][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.752497][ C0] } [ 18.752548][ C0] ... key at: [] __key.37+0x0/0x40 [ 18.752762][ C0] ... acquired at: [ 18.752836][ C0] mark_lock+0x1d7/0xa00 [ 18.752940][ C0] mark_usage+0x42/0x170 [ 18.753046][ C0] __lock_acquire+0x378/0xc10 [ 18.753208][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.753309][ C0] _raw_read_lock_bh+0x44/0x80 [ 18.753413][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 18.753517][ C0] ndisc_send_ns+0xf3/0x120 [ 18.753680][ C0] ndisc_solicit+0x314/0x480 [ 18.753780][ C0] neigh_probe+0xb3/0x100 [ 18.753883][ C0] __neigh_event_send+0x802/0x1070 [ 18.753988][ C0] neigh_resolve_output+0xbe/0x140 [ 18.754155][ C0] ip6_finish_output2+0x423/0x1300 [ 18.754259][ C0] ip6_finish_output+0x646/0xda0 [ 18.754363][ C0] ip6_output+0x23f/0x7f0 [ 18.754463][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 18.754651][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 18.754753][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 18.754877][ C0] dev_hard_start_xmit+0xf8/0x690 [ 18.754979][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 18.755143][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 18.755243][ C0] ip_output+0x1ca/0x660 [ 18.755342][ C0] ip_rcv+0xdc/0x3d0 [ 18.755417][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 18.755602][ C0] process_backlog+0x2bc/0x1490 [ 18.755704][ C0] __napi_poll+0xa7/0x3b0 [ 18.755805][ C0] net_rx_action+0x513/0xf50 [ 18.755905][ C0] handle_softirqs+0x1d8/0x940 [ 18.756069][ C0] do_softirq+0xa9/0xe0 [ 18.756144][ C0] __local_bh_enable_ip+0x113/0x140 [ 18.756243][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 18.756346][ C0] packet_snd+0xfad/0x1990 [ 18.756507][ C0] __sys_sendto+0x2c9/0x400 [ 18.756608][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 18.756711][ C0] do_syscall_64+0x117/0x590 [ 18.756810][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.756998][ C0] [ 18.757048][ C0] [ 18.757048][ C0] stack backtrace: [ 18.757174][ C0] CPU: 0 UID: 0 PID: 387 Comm: mausezahn Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 18.757177][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.757179][ C0] Call Trace: [ 18.757181][ C0] [ 18.757182][ C0] dump_stack_lvl+0x6f/0xa0 [ 18.757186][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 18.757189][ C0] mark_lock_irq+0x989/0x9c0 [ 18.757192][ C0] mark_lock+0x1d7/0xa00 [ 18.757193][ C0] mark_usage+0x42/0x170 [ 18.757195][ C0] __lock_acquire+0x378/0xc10 [ 18.757196][ C0] ? __lock_acquire+0x508/0xc10 [ 18.757198][ C0] lock_acquire.part.0+0xbc/0x260 [ 18.757200][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 18.757202][ C0] ? rcu_is_watching+0x15/0xd0 [ 18.757205][ C0] ? lock_acquire+0x134/0x160 [ 18.757207][ C0] _raw_read_lock_bh+0x44/0x80 [ 18.757209][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 18.757210][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 18.757213][ C0] ndisc_send_ns+0xf3/0x120 [ 18.757214][ C0] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 18.757216][ C0] ? ndisc_parse_options+0x30/0x30 [ 18.757217][ C0] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 18.757220][ C0] ndisc_solicit+0x314/0x480 [ 18.757222][ C0] ? ndisc_send_ns+0x120/0x120 [ 18.757223][ C0] ? neigh_probe+0x62/0x100 [ 18.757225][ C0] neigh_probe+0xb3/0x100 [ 18.757227][ C0] __neigh_event_send+0x802/0x1070 [ 18.757229][ C0] ? warn_bogus_irq_restore+0x1/0x20 [ 18.757232][ C0] ? ___neigh_create+0x811/0x1070 [ 18.757234][ C0] neigh_resolve_output+0xbe/0x140 [ 18.757236][ C0] ip6_finish_output2+0x423/0x1300 [ 18.757238][ C0] ? ip6_xmit+0x2000/0x2000 [ 18.757240][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 18.757241][ C0] ? find_held_lock+0x2b/0x80 [ 18.757244][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 18.757246][ C0] ? ip6_mtu+0x15d/0x310 [ 18.757248][ C0] ip6_finish_output+0x646/0xda0 [ 18.757250][ C0] ip6_output+0x23f/0x7f0 [ 18.757252][ C0] ? ip6_finish_output+0xda0/0xda0 [ 18.757254][ C0] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 18.757257][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 18.757261][ C0] ? ip_route_input+0x420/0x420 [ip6_tunnel] [ 18.757263][ C0] ? pskb_expand_head+0x4ac/0xf50 [ 18.757265][ C0] ? __lock_acquire+0x508/0xc10 [ 18.757267][ C0] ? __pskb_copy_fclone+0x1080/0x1080 [ 18.757270][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 18.757272][ C0] ? __ipv6_chk_addr_and_flags+0x1b0/0x5f0 [ 18.757274][ C0] ? gre_build_header+0xa70/0xa70 [ip6_gre] [ 18.757276][ C0] ? ip6_tnl_xmit_ctl+0x21e/0x390 [ip6_tunnel] [ 18.757278][ C0] ? __asan_memcpy+0x3c/0x60 [ 18.757282][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 18.757284][ C0] ? __gre6_xmit+0x1910/0x1910 [ip6_gre] [ 18.757286][ C0] ? sock_def_readable+0x156/0x490 [ 18.757288][ C0] ? find_held_lock+0x2b/0x80 [ 18.757291][ C0] ? dev_queue_xmit_nit+0x642/0x9e0 [ 18.757293][ C0] dev_hard_start_xmit+0xf8/0x690 [ 18.757295][ C0] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 18.757297][ C0] ? rcu_is_watching+0x15/0xd0 [ 18.757299][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 18.757302][ C0] ? __lock_acquire+0x508/0xc10 [ 18.757304][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.757305][ C0] ? find_held_lock+0x2b/0x80 [ 18.757308][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 18.757310][ C0] ? ___neigh_create+0x811/0x1070 [ 18.757311][ C0] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 18.757314][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 18.757316][ C0] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 18.757318][ C0] ? ip4_dst_hoplimit+0x320/0x320 [ 18.757320][ C0] ? rcu_is_watching+0x15/0xd0 [ 18.757323][ C0] ip_output+0x1ca/0x660 [ 18.757324][ C0] ? ip_finish_output+0x460/0x460 [ 18.757325][ C0] ? ip4_frag_init+0x720/0x720 [ 18.757328][ C0] ? ip_forward+0xfa7/0x1570 [ 18.757330][ C0] ? process_backlog+0x561/0x1490 [ 18.757331][ C0] ip_rcv+0xdc/0x3d0 [ 18.757333][ C0] ? ip_local_deliver+0x4c0/0x4c0 [ 18.757336][ C0] ? mark_usage+0x61/0x170 [ 18.757337][ C0] ? __lock_acquire+0x508/0xc10 [ 18.757338][ C0] ? init_data_structures_once.part.0+0x1a7/0x450 [ 18.757340][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 18.757341][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 18.757343][ C0] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 18.757345][ C0] ? rcu_is_watching+0x15/0xd0 [ 18.757347][ C0] process_backlog+0x2bc/0x1490 [ 18.757349][ C0] __napi_poll+0xa7/0x3b0 [ 18.757351][ C0] net_rx_action+0x513/0xf50 [ 18.757353][ C0] ? __napi_poll+0x3b0/0x3b0 [ 18.757354][ C0] ? find_held_lock+0x2b/0x80 [ 18.757358][ C0] ? clockevents_program_event+0x307/0x7e0 [ 18.757360][ C0] ? rcu_is_watching+0x15/0xd0 [ 18.757362][ C0] ? rcu_is_watching+0x15/0xd0 [ 18.757363][ C0] ? rcu_is_watching+0x15/0xd0 [ 18.757365][ C0] handle_softirqs+0x1d8/0x940 [ 18.757367][ C0] ? rcu_is_watching+0x15/0xd0 [ 18.757369][ C0] ? _local_bh_enable+0xd0/0xd0 [ 18.757370][ C0] ? trace_csd_function_exit+0xb3/0x1a0 [ 18.757372][ C0] ? rcu_is_watching+0x15/0xd0 [ 18.757374][ C0] do_softirq+0xa9/0xe0 [ 18.757375][ C0] [ 18.757376][ C0] [ 18.757377][ C0] ? __dev_queue_xmit+0x946/0x1b60 [ 18.757379][ C0] __local_bh_enable_ip+0x113/0x140 [ 18.757380][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 18.757382][ C0] ? _copy_from_iter+0x1bb/0x1810 [ 18.757387][ C0] ? _copy_from_iter_flushcache+0x1970/0x1970 [ 18.757389][ C0] ? net_dim+0x730/0xd70 [ 18.757391][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.757394][ C0] ? packet_release+0xc70/0xc70 [ 18.757396][ C0] packet_snd+0xfad/0x1990 [ 18.757399][ C0] ? tpacket_snd+0x19e0/0x19e0 [ 18.757401][ C0] ? __might_fault+0x97/0x140 [ 18.757405][ C0] ? __might_fault+0x97/0x140 [ 18.757406][ C0] ? __might_fault+0x97/0x140 [ 18.757407][ C0] __sys_sendto+0x2c9/0x400 [ 18.757410][ C0] ? __ia32_sys_getpeername+0xd0/0xd0 [ 18.757413][ C0] ? sock_ioctl+0x3cb/0x5f0 [ 18.757416][ C0] ? do_user_addr_fault+0x325/0xe30 [ 18.757419][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 18.757421][ C0] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 18.757424][ C0] ? lockdep_hardirqs_on+0x8c/0x130 [ 18.757426][ C0] ? do_syscall_64+0x82/0x590 [ 18.757427][ C0] do_syscall_64+0x117/0x590 [ 18.757428][ C0] ? trace_hardirqs_off+0xd/0x30 [ 18.757430][ C0] ? exc_page_fault+0xee/0x100 [ 18.757432][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.757433][ C0] RIP: 0033:0x7fe8f73de08e [ 18.757436][ 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 [ 18.757438][ C0] RSP: 002b:00007fffea3dbdc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 18.757441][ C0] RAX: ffffffffffffffda RBX: 0000560e275ffb22 RCX: 00007fe8f73de08e [ 18.757442][ C0] RDX: 0000000000000062 RSI: 0000560e275ffb22 RDI: 0000000000000005 [ 18.757443][ C0] RBP: 00007fffea3dbdd0 R08: 00007fffea3dbe20 R09: 0000000000000014 [ 18.757444][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000560e275ff830 [ 18.757445][ C0] R13: 0000000000000062 R14: 0000000000000005 R15: 0000560e275ff830 [ 18.757447][ C0]