[ 8.479561][ T185] ip (185) used greatest stack depth: 24152 bytes left [ 10.608445][ T286] 8021q: 802.1Q VLAN Support v1.8 [ 10.737346][ T293] gre: GRE over IPv4 demultiplexer driver [ 10.764161][ T293] ip6_gre: GRE over IPv6 tunneling driver [ 10.843554][ T298] ip (298) used greatest stack depth: 24096 bytes left [ 17.328205][ T387] GACT probability NOT on [ 17.418818][ C0] [ 17.418903][ C0] ======================================================== [ 17.419059][ C0] WARNING: possible irq lock inversion dependency detected [ 17.419207][ C0] 7.1.0-rc5-virtme #1 Not tainted [ 17.419308][ C0] -------------------------------------------------------- [ 17.419457][ C0] mausezahn/393 just changed the state of lock: [ 17.419580][ C0] ff1100000cce2578 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 17.419770][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 17.419921][ C0] (acaddr_hash_lock){+.+.}-{3:3} [ 17.419923][ C0] [ 17.419923][ C0] [ 17.419923][ C0] and interrupts could create inverse lock ordering between them. [ 17.419923][ C0] [ 17.420289][ C0] [ 17.420289][ C0] other info that might help us debug this: [ 17.420437][ C0] Possible interrupt unsafe locking scenario: [ 17.420437][ C0] [ 17.420585][ C0] CPU0 CPU1 [ 17.420685][ C0] ---- ---- [ 17.420787][ C0] lock(acaddr_hash_lock); [ 17.420886][ C0] local_irq_disable(); [ 17.421008][ C0] lock(&ndev->lock); [ 17.421136][ C0] lock(acaddr_hash_lock); [ 17.421259][ C0] [ 17.421334][ C0] lock(&ndev->lock); [ 17.421410][ C0] [ 17.421410][ C0] *** DEADLOCK *** [ 17.421410][ C0] [ 17.421555][ C0] 6 locks held by mausezahn/393: [ 17.421655][ C0] #0: ffffffffa0377d20 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 17.421837][ C0] #1: ffffffffa0377d20 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 17.422018][ C0] #2: ffffffffa0377d20 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 17.422191][ C0] #3: ffffffffa0377cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1fe/0x1b60 [ 17.422366][ C0] #4: ffffffffa0377d20 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 17.422541][ C0] #5: ffffffffa0377d20 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 17.422719][ C0] [ 17.422719][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 17.422891][ C0] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 17.422995][ C0] HARDIRQ-ON-W at: [ 17.423078][ C0] __lock_acquire+0x378/0xc10 [ 17.423211][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.423334][ C0] _raw_spin_lock+0x33/0x40 [ 17.423461][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.423608][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.423740][ C0] addrconf_join_anycast+0x1bc/0x260 [ 17.423863][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 17.423988][ C0] addrconf_dad_completed+0x14b/0xe10 [ 17.424142][ C0] addrconf_dad_begin+0x2e1/0x540 [ 17.424269][ C0] addrconf_dad_work+0x170/0x930 [ 17.424394][ C0] process_one_work+0xdf8/0x1410 [ 17.424518][ C0] worker_thread+0x4f1/0xd60 [ 17.424642][ C0] kthread+0x367/0x460 [ 17.424774][ C0] ret_from_fork+0x474/0x6b0 [ 17.424905][ C0] ret_from_fork_asm+0x11/0x20 [ 17.425030][ C0] SOFTIRQ-ON-W at: [ 17.425105][ C0] __lock_acquire+0x378/0xc10 [ 17.425227][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.425351][ C0] _raw_spin_lock+0x33/0x40 [ 17.425474][ C0] __ipv6_dev_ac_dec+0x236/0x5d0 [ 17.425597][ C0] addrconf_leave_anycast+0x1bc/0x260 [ 17.425750][ C0] __ipv6_ifa_notify+0x6b4/0xad0 [ 17.425874][ C0] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 17.426022][ C0] addrconf_notify+0x339/0xf30 [ 17.426145][ C0] notifier_call_chain+0xb0/0x320 [ 17.426268][ C0] __netdev_upper_dev_link+0x3a5/0x590 [ 17.426418][ C0] netdev_master_upper_dev_link+0x86/0xb0 [ 17.426566][ C0] vrf_add_slave+0xdd/0x210 [vrf] [ 17.426690][ C0] do_set_master+0x357/0x580 [ 17.426820][ C0] do_setlink.isra.0+0xa31/0x2750 [ 17.426945][ C0] rtnl_newlink+0x8d1/0xef0 [ 17.427067][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.427192][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.427316][ C0] netlink_unicast+0x486/0x750 [ 17.427440][ C0] netlink_sendmsg+0x735/0xc60 [ 17.427564][ C0] ____sys_sendmsg+0x419/0x850 [ 17.427697][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.427823][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.427947][ C0] do_syscall_64+0x117/0x590 [ 17.428072][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.428220][ C0] INITIAL USE at: [ 17.428295][ C0] __lock_acquire+0x378/0xc10 [ 17.428425][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.428550][ C0] _raw_spin_lock+0x33/0x40 [ 17.428678][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.428833][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.428959][ C0] addrconf_join_anycast+0x1bc/0x260 [ 17.429088][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 17.429216][ C0] addrconf_dad_completed+0x14b/0xe10 [ 17.429341][ C0] addrconf_dad_begin+0x2e1/0x540 [ 17.429475][ C0] addrconf_dad_work+0x170/0x930 [ 17.429598][ C0] process_one_work+0xdf8/0x1410 [ 17.429722][ C0] worker_thread+0x4f1/0xd60 [ 17.429851][ C0] kthread+0x367/0x460 [ 17.429973][ C0] ret_from_fork+0x474/0x6b0 [ 17.430095][ C0] ret_from_fork_asm+0x11/0x20 [ 17.430218][ C0] } [ 17.430268][ C0] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 17.430420][ C0] ... acquired at: [ 17.430496][ C0] __lock_acquire+0x508/0xc10 [ 17.430602][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.430704][ C0] _raw_spin_lock+0x33/0x40 [ 17.430803][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.430927][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.431028][ C0] addrconf_join_anycast+0x1bc/0x260 [ 17.431128][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 17.431230][ C0] addrconf_dad_completed+0x14b/0xe10 [ 17.431336][ C0] addrconf_dad_begin+0x2e1/0x540 [ 17.431435][ C0] addrconf_dad_work+0x170/0x930 [ 17.431536][ C0] process_one_work+0xdf8/0x1410 [ 17.431636][ C0] worker_thread+0x4f1/0xd60 [ 17.431737][ C0] kthread+0x367/0x460 [ 17.431812][ C0] ret_from_fork+0x474/0x6b0 [ 17.431911][ C0] ret_from_fork_asm+0x11/0x20 [ 17.432012][ C0] [ 17.432063][ C0] -> (&ndev->lock){++.-}-{3:3} { [ 17.432164][ C0] HARDIRQ-ON-W at: [ 17.432240][ C0] __lock_acquire+0x378/0xc10 [ 17.432370][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.432493][ C0] _raw_write_lock_bh+0x38/0x50 [ 17.432620][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 17.432747][ C0] addrconf_notify+0x151/0xf30 [ 17.432873][ C0] notifier_call_chain+0xb0/0x320 [ 17.432997][ C0] __dev_notify_flags+0xde/0x280 [ 17.433121][ C0] netif_change_flags+0xfe/0x190 [ 17.433248][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 17.433375][ C0] rtnl_newlink+0x8d1/0xef0 [ 17.433498][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.433622][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.433750][ C0] netlink_unicast+0x486/0x750 [ 17.433877][ C0] netlink_sendmsg+0x735/0xc60 [ 17.434006][ C0] ____sys_sendmsg+0x419/0x850 [ 17.434131][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.434257][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.434381][ C0] do_syscall_64+0x117/0x590 [ 17.434505][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.434653][ C0] HARDIRQ-ON-R at: [ 17.434731][ C0] __lock_acquire+0x378/0xc10 [ 17.434854][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.434978][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.435101][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.435250][ C0] inet6_fill_link_af+0x5c/0xe0 [ 17.435376][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.435524][ C0] rtnl_getlink+0x9c9/0xeb0 [ 17.435648][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.435776][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.435906][ C0] netlink_unicast+0x486/0x750 [ 17.436035][ C0] netlink_sendmsg+0x735/0xc60 [ 17.436164][ C0] ____sys_sendmsg+0x419/0x850 [ 17.436293][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.436422][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.436545][ C0] do_syscall_64+0x117/0x590 [ 17.436669][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.436827][ C0] IN-SOFTIRQ-R at: [ 17.436901][ C0] __lock_acquire+0x378/0xc10 [ 17.437026][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.437151][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.437276][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 17.437400][ C0] ndisc_send_ns+0xf3/0x120 [ 17.437525][ C0] ndisc_solicit+0x314/0x480 [ 17.437650][ C0] neigh_probe+0xb3/0x100 [ 17.437782][ C0] __neigh_event_send+0x802/0x1070 [ 17.437906][ C0] neigh_resolve_output+0xbe/0x140 [ 17.438036][ C0] ip6_finish_output2+0x423/0x1300 [ 17.438165][ C0] ip6_finish_output+0x646/0xda0 [ 17.438290][ C0] ip6_output+0x23f/0x7f0 [ 17.438417][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.438573][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.438706][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.438860][ C0] dev_hard_start_xmit+0xf8/0x690 [ 17.438984][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 17.439109][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 17.439233][ C0] ip_output+0x1ca/0x660 [ 17.439356][ C0] ip_rcv+0xdc/0x3d0 [ 17.439457][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 17.439603][ C0] process_backlog+0x2bc/0x1490 [ 17.439729][ C0] __napi_poll+0xa7/0x3b0 [ 17.439855][ C0] net_rx_action+0x513/0xf50 [ 17.439980][ C0] handle_softirqs+0x1d8/0x940 [ 17.440105][ C0] do_softirq+0xa9/0xe0 [ 17.440229][ C0] __local_bh_enable_ip+0x113/0x140 [ 17.440353][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 17.440479][ C0] packet_snd+0xfad/0x1990 [ 17.440606][ C0] __sys_sendto+0x2c9/0x400 [ 17.440737][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 17.440862][ C0] do_syscall_64+0x117/0x590 [ 17.440984][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.441133][ C0] INITIAL USE at: [ 17.441208][ C0] __lock_acquire+0x378/0xc10 [ 17.441334][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.441457][ C0] _raw_write_lock_bh+0x38/0x50 [ 17.441587][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 17.441714][ C0] addrconf_notify+0x151/0xf30 [ 17.441838][ C0] notifier_call_chain+0xb0/0x320 [ 17.441962][ C0] __dev_notify_flags+0xde/0x280 [ 17.442091][ C0] netif_change_flags+0xfe/0x190 [ 17.442214][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 17.442338][ C0] rtnl_newlink+0x8d1/0xef0 [ 17.442461][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.442587][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.442718][ C0] netlink_unicast+0x486/0x750 [ 17.442847][ C0] netlink_sendmsg+0x735/0xc60 [ 17.442974][ C0] ____sys_sendmsg+0x419/0x850 [ 17.443098][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.443223][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.443347][ C0] do_syscall_64+0x117/0x590 [ 17.443477][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.443626][ C0] INITIAL READ USE at: [ 17.443702][ C0] __lock_acquire+0x378/0xc10 [ 17.443825][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.443950][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.444076][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.444229][ C0] inet6_fill_link_af+0x5c/0xe0 [ 17.444354][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.444509][ C0] rtnl_getlink+0x9c9/0xeb0 [ 17.444634][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.444767][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.444890][ C0] netlink_unicast+0x486/0x750 [ 17.445012][ C0] netlink_sendmsg+0x735/0xc60 [ 17.445136][ C0] ____sys_sendmsg+0x419/0x850 [ 17.445260][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.445387][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.445512][ C0] do_syscall_64+0x117/0x590 [ 17.445636][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.445788][ C0] } [ 17.445839][ C0] ... key at: [] __key.37+0x0/0x40 [ 17.445988][ C0] ... acquired at: [ 17.446063][ C0] mark_lock+0x1d7/0xa00 [ 17.446162][ C0] mark_usage+0x42/0x170 [ 17.446261][ C0] __lock_acquire+0x378/0xc10 [ 17.446361][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.446460][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.446558][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 17.446658][ C0] ndisc_send_ns+0xf3/0x120 [ 17.446759][ C0] ndisc_solicit+0x314/0x480 [ 17.446860][ C0] neigh_probe+0xb3/0x100 [ 17.446959][ C0] __neigh_event_send+0x802/0x1070 [ 17.447058][ C0] neigh_resolve_output+0xbe/0x140 [ 17.447158][ C0] ip6_finish_output2+0x423/0x1300 [ 17.447256][ C0] ip6_finish_output+0x646/0xda0 [ 17.447356][ C0] ip6_output+0x23f/0x7f0 [ 17.447456][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.447581][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.447747][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.447870][ C0] dev_hard_start_xmit+0xf8/0x690 [ 17.447970][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 17.448068][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 17.448226][ C0] ip_output+0x1ca/0x660 [ 17.448326][ C0] ip_rcv+0xdc/0x3d0 [ 17.448401][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 17.448523][ C0] process_backlog+0x2bc/0x1490 [ 17.448679][ C0] __napi_poll+0xa7/0x3b0 [ 17.448781][ C0] net_rx_action+0x513/0xf50 [ 17.448879][ C0] handle_softirqs+0x1d8/0x940 [ 17.448977][ C0] do_softirq+0xa9/0xe0 [ 17.449108][ C0] __local_bh_enable_ip+0x113/0x140 [ 17.449208][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 17.449307][ C0] packet_snd+0xfad/0x1990 [ 17.449406][ C0] __sys_sendto+0x2c9/0x400 [ 17.449563][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 17.449661][ C0] do_syscall_64+0x117/0x590 [ 17.449762][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.449884][ C0] [ 17.449989][ C0] [ 17.449989][ C0] stack backtrace: [ 17.450114][ C0] CPU: 0 UID: 0 PID: 393 Comm: mausezahn Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 17.450117][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.450119][ C0] Call Trace: [ 17.450120][ C0] [ 17.450121][ C0] dump_stack_lvl+0x6f/0xa0 [ 17.450125][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 17.450129][ C0] mark_lock_irq+0x989/0x9c0 [ 17.450131][ C0] mark_lock+0x1d7/0xa00 [ 17.450133][ C0] mark_usage+0x42/0x170 [ 17.450135][ C0] __lock_acquire+0x378/0xc10 [ 17.450136][ C0] ? __lock_acquire+0x508/0xc10 [ 17.450138][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.450139][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.450141][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.450144][ C0] ? lock_acquire+0x134/0x160 [ 17.450146][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.450147][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.450149][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 17.450151][ C0] ndisc_send_ns+0xf3/0x120 [ 17.450153][ C0] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 17.450155][ C0] ? ndisc_parse_options+0x30/0x30 [ 17.450156][ C0] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 17.450158][ C0] ndisc_solicit+0x314/0x480 [ 17.450160][ C0] ? ndisc_send_ns+0x120/0x120 [ 17.450161][ C0] ? neigh_probe+0x62/0x100 [ 17.450163][ C0] neigh_probe+0xb3/0x100 [ 17.450165][ C0] __neigh_event_send+0x802/0x1070 [ 17.450167][ C0] ? warn_bogus_irq_restore+0x1/0x20 [ 17.450169][ C0] ? ___neigh_create+0x811/0x1070 [ 17.450172][ C0] neigh_resolve_output+0xbe/0x140 [ 17.450174][ C0] ip6_finish_output2+0x423/0x1300 [ 17.450176][ C0] ? ip6_xmit+0x2000/0x2000 [ 17.450177][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 17.450178][ C0] ? find_held_lock+0x2b/0x80 [ 17.450181][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.450183][ C0] ? ip6_mtu+0x15d/0x310 [ 17.450185][ C0] ip6_finish_output+0x646/0xda0 [ 17.450187][ C0] ip6_output+0x23f/0x7f0 [ 17.450189][ C0] ? ip6_finish_output+0xda0/0xda0 [ 17.450190][ C0] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 17.450193][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.450197][ C0] ? ip_route_input+0x420/0x420 [ip6_tunnel] [ 17.450199][ C0] ? pskb_expand_head+0x4ac/0xf50 [ 17.450201][ C0] ? __lock_acquire+0x508/0xc10 [ 17.450203][ C0] ? __pskb_copy_fclone+0x1080/0x1080 [ 17.450205][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.450207][ C0] ? __ipv6_chk_addr_and_flags+0x1b0/0x5f0 [ 17.450209][ C0] ? gre_build_header+0xa70/0xa70 [ip6_gre] [ 17.450211][ C0] ? ip6_tnl_xmit_ctl+0x21e/0x390 [ip6_tunnel] [ 17.450213][ C0] ? __asan_memcpy+0x3c/0x60 [ 17.450217][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.450219][ C0] ? __gre6_xmit+0x1910/0x1910 [ip6_gre] [ 17.450221][ C0] ? sock_def_readable+0x156/0x490 [ 17.450223][ C0] ? find_held_lock+0x2b/0x80 [ 17.450226][ C0] ? dev_queue_xmit_nit+0x642/0x9e0 [ 17.450229][ C0] dev_hard_start_xmit+0xf8/0x690 [ 17.450230][ C0] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.450232][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.450234][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 17.450236][ C0] ? __lock_acquire+0x508/0xc10 [ 17.450238][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.450240][ C0] ? find_held_lock+0x2b/0x80 [ 17.450242][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.450244][ C0] ? ___neigh_create+0x811/0x1070 [ 17.450246][ C0] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.450248][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 17.450250][ C0] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 17.450252][ C0] ? ip4_dst_hoplimit+0x320/0x320 [ 17.450254][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.450256][ C0] ip_output+0x1ca/0x660 [ 17.450258][ C0] ? ip_finish_output+0x460/0x460 [ 17.450259][ C0] ? ip4_frag_init+0x720/0x720 [ 17.450261][ C0] ? ip_forward+0xfa7/0x1570 [ 17.450263][ C0] ? process_backlog+0x561/0x1490 [ 17.450264][ C0] ip_rcv+0xdc/0x3d0 [ 17.450266][ C0] ? ip_local_deliver+0x4c0/0x4c0 [ 17.450268][ C0] ? mark_usage+0x61/0x170 [ 17.450270][ C0] ? __lock_acquire+0x508/0xc10 [ 17.450271][ C0] ? init_data_structures_once.part.0+0x1a7/0x450 [ 17.450273][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 17.450274][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 17.450275][ C0] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 17.450277][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.450279][ C0] process_backlog+0x2bc/0x1490 [ 17.450281][ C0] __napi_poll+0xa7/0x3b0 [ 17.450283][ C0] net_rx_action+0x513/0xf50 [ 17.450285][ C0] ? __napi_poll+0x3b0/0x3b0 [ 17.450286][ C0] ? find_held_lock+0x2b/0x80 [ 17.450290][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.450291][ C0] handle_softirqs+0x1d8/0x940 [ 17.450293][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.450295][ C0] ? _local_bh_enable+0xd0/0xd0 [ 17.450296][ C0] ? trace_csd_function_exit+0xb3/0x1a0 [ 17.450298][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.450300][ C0] do_softirq+0xa9/0xe0 [ 17.450302][ C0] [ 17.450302][ C0] [ 17.450303][ C0] ? __dev_queue_xmit+0x946/0x1b60 [ 17.450305][ C0] __local_bh_enable_ip+0x113/0x140 [ 17.450306][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 17.450308][ C0] ? _copy_from_iter+0x1bb/0x1810 [ 17.450313][ C0] ? _copy_from_iter_flushcache+0x1970/0x1970 [ 17.450314][ C0] ? net_dim+0x730/0xd70 [ 17.450316][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.450319][ C0] ? packet_release+0xc70/0xc70 [ 17.450322][ C0] packet_snd+0xfad/0x1990 [ 17.450325][ C0] ? tpacket_snd+0x19e0/0x19e0 [ 17.450326][ C0] ? __might_fault+0x97/0x140 [ 17.450330][ C0] ? __might_fault+0x97/0x140 [ 17.450331][ C0] ? __might_fault+0x97/0x140 [ 17.450332][ C0] __sys_sendto+0x2c9/0x400 [ 17.450334][ C0] ? __ia32_sys_getpeername+0xd0/0xd0 [ 17.450337][ C0] ? sock_ioctl+0x3cb/0x5f0 [ 17.450340][ C0] ? do_user_addr_fault+0x325/0xe30 [ 17.450343][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 17.450345][ C0] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 17.450348][ C0] ? lockdep_hardirqs_on+0x8c/0x130 [ 17.450350][ C0] ? do_syscall_64+0x82/0x590 [ 17.450351][ C0] do_syscall_64+0x117/0x590 [ 17.450352][ C0] ? trace_hardirqs_off+0xd/0x30 [ 17.450354][ C0] ? exc_page_fault+0xee/0x100 [ 17.450355][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.450357][ C0] RIP: 0033:0x7f3e7955908e [ 17.450359][ 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 [ 17.450361][ C0] RSP: 002b:00007ffd3fbc9500 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 17.450364][ C0] RAX: ffffffffffffffda RBX: 000055a5e25fcb22 RCX: 00007f3e7955908e [ 17.450365][ C0] RDX: 0000000000000062 RSI: 000055a5e25fcb22 RDI: 0000000000000005 [ 17.450366][ C0] RBP: 00007ffd3fbc9510 R08: 00007ffd3fbc9560 R09: 0000000000000014 [ 17.450367][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 000055a5e25fc830 [ 17.450368][ C0] R13: 0000000000000062 R14: 0000000000000005 R15: 000055a5e25fc830 [ 17.450370][ C0]