[ 8.795069][ T187] ip (187) used greatest stack depth: 24192 bytes left [ 10.929533][ T285] 8021q: 802.1Q VLAN Support v1.8 [ 11.082214][ T291] gre: GRE over IPv4 demultiplexer driver [ 11.108584][ T291] ip6_gre: GRE over IPv6 tunneling driver [ 17.702491][ T384] GACT probability NOT on [ 17.820349][ C0] [ 17.820446][ C0] ======================================================== [ 17.820614][ C0] WARNING: possible irq lock inversion dependency detected [ 17.820772][ C0] 7.1.0-rc5-virtme #1 Not tainted [ 17.820885][ C0] -------------------------------------------------------- [ 17.821031][ C0] mausezahn/390 just changed the state of lock: [ 17.821155][ C0] ff110000167e6d78 (&ndev->lock){++.-}-{3:3}, at: ipv6_get_lladdr+0xa8/0x3f0 [ 17.821352][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 17.821501][ C0] (acaddr_hash_lock){+.+.}-{3:3} [ 17.821504][ C0] [ 17.821504][ C0] [ 17.821504][ C0] and interrupts could create inverse lock ordering between them. [ 17.821504][ C0] [ 17.821871][ C0] [ 17.821871][ C0] other info that might help us debug this: [ 17.822022][ C0] Possible interrupt unsafe locking scenario: [ 17.822022][ C0] [ 17.822187][ C0] CPU0 CPU1 [ 17.822287][ C0] ---- ---- [ 17.822386][ C0] lock(acaddr_hash_lock); [ 17.822488][ C0] local_irq_disable(); [ 17.822613][ C0] lock(&ndev->lock); [ 17.822739][ C0] lock(acaddr_hash_lock); [ 17.822866][ C0] [ 17.822944][ C0] lock(&ndev->lock); [ 17.823022][ C0] [ 17.823022][ C0] *** DEADLOCK *** [ 17.823022][ C0] [ 17.823174][ C0] 6 locks held by mausezahn/390: [ 17.823276][ C0] #0: ffffffff8db77d20 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 17.823454][ C0] #1: ffffffff8db77d20 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 17.823633][ C0] #2: ffffffff8db77d20 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 17.823805][ C0] #3: ffffffff8db77cc0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1fe/0x1b60 [ 17.823981][ C0] #4: ffffffff8db77d20 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 17.824156][ C0] #5: ffffffff8db77d20 (rcu_read_lock){....}-{1:3}, at: ipv6_get_lladdr+0x36/0x3f0 [ 17.824336][ C0] [ 17.824336][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 17.824509][ C0] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 17.824615][ C0] HARDIRQ-ON-W at: [ 17.824692][ C0] __lock_acquire+0x378/0xc10 [ 17.824826][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.824953][ C0] _raw_spin_lock+0x33/0x40 [ 17.825077][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.825232][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.825357][ C0] addrconf_join_anycast+0x1bc/0x260 [ 17.825482][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 17.825611][ C0] addrconf_dad_completed+0x14b/0xe10 [ 17.825762][ C0] addrconf_dad_begin+0x2e1/0x540 [ 17.825887][ C0] addrconf_dad_work+0x170/0x930 [ 17.826013][ C0] process_one_work+0xdf8/0x1410 [ 17.826139][ C0] worker_thread+0x4f1/0xd60 [ 17.826268][ C0] kthread+0x367/0x460 [ 17.826395][ C0] ret_from_fork+0x474/0x6b0 [ 17.826522][ C0] ret_from_fork_asm+0x11/0x20 [ 17.826650][ C0] SOFTIRQ-ON-W at: [ 17.826725][ C0] __lock_acquire+0x378/0xc10 [ 17.826848][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.826974][ C0] _raw_spin_lock+0x33/0x40 [ 17.827100][ C0] __ipv6_dev_ac_dec+0x236/0x5d0 [ 17.827229][ C0] addrconf_leave_anycast+0x1bc/0x260 [ 17.827380][ C0] __ipv6_ifa_notify+0x6b4/0xad0 [ 17.827507][ C0] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 17.827663][ C0] addrconf_notify+0x339/0xf30 [ 17.827789][ C0] notifier_call_chain+0xb0/0x320 [ 17.827914][ C0] __netdev_upper_dev_link+0x3a5/0x590 [ 17.828065][ C0] netdev_master_upper_dev_link+0x86/0xb0 [ 17.828220][ C0] vrf_add_slave+0xdd/0x210 [vrf] [ 17.828347][ C0] do_set_master+0x357/0x580 [ 17.828472][ C0] do_setlink.isra.0+0xa31/0x2750 [ 17.828596][ C0] rtnl_newlink+0x8d1/0xef0 [ 17.828721][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.828845][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.828973][ C0] netlink_unicast+0x486/0x750 [ 17.829096][ C0] netlink_sendmsg+0x735/0xc60 [ 17.829224][ C0] ____sys_sendmsg+0x419/0x850 [ 17.829350][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.829476][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.829602][ C0] do_syscall_64+0x117/0x590 [ 17.829730][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.829881][ C0] INITIAL USE at: [ 17.829956][ C0] __lock_acquire+0x378/0xc10 [ 17.830082][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.830211][ C0] _raw_spin_lock+0x33/0x40 [ 17.830336][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.830487][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.830612][ C0] addrconf_join_anycast+0x1bc/0x260 [ 17.830737][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 17.830862][ C0] addrconf_dad_completed+0x14b/0xe10 [ 17.830987][ C0] addrconf_dad_begin+0x2e1/0x540 [ 17.831115][ C0] addrconf_dad_work+0x170/0x930 [ 17.831244][ C0] process_one_work+0xdf8/0x1410 [ 17.831369][ C0] worker_thread+0x4f1/0xd60 [ 17.831495][ C0] kthread+0x367/0x460 [ 17.831621][ C0] ret_from_fork+0x474/0x6b0 [ 17.831749][ C0] ret_from_fork_asm+0x11/0x20 [ 17.831875][ C0] } [ 17.831928][ C0] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 17.832078][ C0] ... acquired at: [ 17.832155][ C0] __lock_acquire+0x508/0xc10 [ 17.832259][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.832356][ C0] _raw_spin_lock+0x33/0x40 [ 17.832457][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 17.832581][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 17.832681][ C0] addrconf_join_anycast+0x1bc/0x260 [ 17.832781][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 17.832881][ C0] addrconf_dad_completed+0x14b/0xe10 [ 17.832979][ C0] addrconf_dad_begin+0x2e1/0x540 [ 17.833087][ C0] addrconf_dad_work+0x170/0x930 [ 17.833191][ C0] process_one_work+0xdf8/0x1410 [ 17.833295][ C0] worker_thread+0x4f1/0xd60 [ 17.833394][ C0] kthread+0x367/0x460 [ 17.833469][ C0] ret_from_fork+0x474/0x6b0 [ 17.833571][ C0] ret_from_fork_asm+0x11/0x20 [ 17.833676][ C0] [ 17.833728][ C0] -> (&ndev->lock){++.-}-{3:3} { [ 17.833831][ C0] HARDIRQ-ON-W at: [ 17.833906][ C0] __lock_acquire+0x378/0xc10 [ 17.834031][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.834157][ C0] _raw_write_lock_bh+0x38/0x50 [ 17.834286][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 17.834411][ C0] addrconf_notify+0x151/0xf30 [ 17.834538][ C0] notifier_call_chain+0xb0/0x320 [ 17.834662][ C0] __dev_notify_flags+0xde/0x280 [ 17.834787][ C0] netif_change_flags+0xfe/0x190 [ 17.834910][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 17.835034][ C0] rtnl_newlink+0x8d1/0xef0 [ 17.835162][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.835294][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.835419][ C0] netlink_unicast+0x486/0x750 [ 17.835545][ C0] netlink_sendmsg+0x735/0xc60 [ 17.835670][ C0] ____sys_sendmsg+0x419/0x850 [ 17.835795][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.835923][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.836048][ C0] do_syscall_64+0x117/0x590 [ 17.836174][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.836325][ C0] HARDIRQ-ON-R at: [ 17.836400][ C0] __lock_acquire+0x378/0xc10 [ 17.836526][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.836654][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.836780][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.836931][ C0] inet6_fill_link_af+0x5c/0xe0 [ 17.837056][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.837213][ C0] rtnl_getlink+0x9c9/0xeb0 [ 17.837338][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.837466][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.837593][ C0] netlink_unicast+0x486/0x750 [ 17.837717][ C0] netlink_sendmsg+0x735/0xc60 [ 17.837842][ C0] ____sys_sendmsg+0x419/0x850 [ 17.837967][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.838093][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.838225][ C0] do_syscall_64+0x117/0x590 [ 17.838351][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.838499][ C0] IN-SOFTIRQ-R at: [ 17.838576][ C0] __lock_acquire+0x378/0xc10 [ 17.838702][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.838826][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.838954][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 17.839080][ C0] ndisc_send_ns+0xf3/0x120 [ 17.839210][ C0] ndisc_solicit+0x314/0x480 [ 17.839335][ C0] neigh_probe+0xb3/0x100 [ 17.839459][ C0] __neigh_event_send+0x802/0x1070 [ 17.839585][ C0] neigh_resolve_output+0xbe/0x140 [ 17.839712][ C0] ip6_finish_output2+0x423/0x1300 [ 17.839838][ C0] ip6_finish_output+0x646/0xda0 [ 17.839963][ C0] ip6_output+0x23f/0x7f0 [ 17.840088][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.840242][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.840371][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.840520][ C0] dev_hard_start_xmit+0xf8/0x690 [ 17.840647][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 17.840770][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 17.840896][ C0] ip_output+0x1ca/0x660 [ 17.841023][ C0] ip_rcv+0xdc/0x3d0 [ 17.841122][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 17.841277][ C0] process_backlog+0x2bc/0x1490 [ 17.841399][ C0] __napi_poll+0xa7/0x3b0 [ 17.841523][ C0] net_rx_action+0x513/0xf50 [ 17.841651][ C0] handle_softirqs+0x1d8/0x940 [ 17.841779][ C0] do_softirq+0xa9/0xe0 [ 17.841904][ C0] __local_bh_enable_ip+0x113/0x140 [ 17.842034][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 17.842160][ C0] packet_snd+0xfad/0x1990 [ 17.842294][ C0] __sys_sendto+0x2c9/0x400 [ 17.842424][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 17.842547][ C0] do_syscall_64+0x117/0x590 [ 17.842671][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.842819][ C0] INITIAL USE at: [ 17.842895][ C0] __lock_acquire+0x378/0xc10 [ 17.843017][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.843143][ C0] _raw_write_lock_bh+0x38/0x50 [ 17.843272][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 17.843397][ C0] addrconf_notify+0x151/0xf30 [ 17.843520][ C0] notifier_call_chain+0xb0/0x320 [ 17.843650][ C0] __dev_notify_flags+0xde/0x280 [ 17.843773][ C0] netif_change_flags+0xfe/0x190 [ 17.843900][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 17.844023][ C0] rtnl_newlink+0x8d1/0xef0 [ 17.844144][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.844273][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.844397][ C0] netlink_unicast+0x486/0x750 [ 17.844524][ C0] netlink_sendmsg+0x735/0xc60 [ 17.844648][ C0] ____sys_sendmsg+0x419/0x850 [ 17.844772][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.844896][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.845020][ C0] do_syscall_64+0x117/0x590 [ 17.845145][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.845297][ C0] INITIAL READ USE at: [ 17.845372][ C0] __lock_acquire+0x378/0xc10 [ 17.845495][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.845619][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.845742][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 17.845891][ C0] inet6_fill_link_af+0x5c/0xe0 [ 17.846019][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 17.846168][ C0] rtnl_getlink+0x9c9/0xeb0 [ 17.846296][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 17.846419][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 17.846549][ C0] netlink_unicast+0x486/0x750 [ 17.846674][ C0] netlink_sendmsg+0x735/0xc60 [ 17.846798][ C0] ____sys_sendmsg+0x419/0x850 [ 17.846922][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 17.847046][ C0] __sys_sendmsg+0x145/0x1f0 [ 17.847172][ C0] do_syscall_64+0x117/0x590 [ 17.847299][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.847447][ C0] } [ 17.847498][ C0] ... key at: [] __key.37+0x0/0x40 [ 17.847649][ C0] ... acquired at: [ 17.847724][ C0] mark_lock+0x1d7/0xa00 [ 17.847824][ C0] mark_usage+0x42/0x170 [ 17.847924][ C0] __lock_acquire+0x378/0xc10 [ 17.848022][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.848120][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.848224][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 17.848324][ C0] ndisc_send_ns+0xf3/0x120 [ 17.848422][ C0] ndisc_solicit+0x314/0x480 [ 17.848520][ C0] neigh_probe+0xb3/0x100 [ 17.848625][ C0] __neigh_event_send+0x802/0x1070 [ 17.848726][ C0] neigh_resolve_output+0xbe/0x140 [ 17.848825][ C0] ip6_finish_output2+0x423/0x1300 [ 17.848927][ C0] ip6_finish_output+0x646/0xda0 [ 17.849025][ C0] ip6_output+0x23f/0x7f0 [ 17.849123][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.849252][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.849352][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.849477][ C0] dev_hard_start_xmit+0xf8/0x690 [ 17.849575][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 17.849673][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 17.849773][ C0] ip_output+0x1ca/0x660 [ 17.849870][ C0] ip_rcv+0xdc/0x3d0 [ 17.849944][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 17.850067][ C0] process_backlog+0x2bc/0x1490 [ 17.850164][ C0] __napi_poll+0xa7/0x3b0 [ 17.850267][ C0] net_rx_action+0x513/0xf50 [ 17.850365][ C0] handle_softirqs+0x1d8/0x940 [ 17.850465][ C0] do_softirq+0xa9/0xe0 [ 17.850540][ C0] __local_bh_enable_ip+0x113/0x140 [ 17.850639][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 17.850738][ C0] packet_snd+0xfad/0x1990 [ 17.850845][ C0] __sys_sendto+0x2c9/0x400 [ 17.850945][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 17.851043][ C0] do_syscall_64+0x117/0x590 [ 17.851140][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.851266][ C0] [ 17.851317][ C0] [ 17.851317][ C0] stack backtrace: [ 17.851443][ C0] CPU: 0 UID: 0 PID: 390 Comm: mausezahn Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 17.851447][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.851449][ C0] Call Trace: [ 17.851450][ C0] [ 17.851452][ C0] dump_stack_lvl+0x6f/0xa0 [ 17.851456][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 17.851460][ C0] mark_lock_irq+0x989/0x9c0 [ 17.851462][ C0] mark_lock+0x1d7/0xa00 [ 17.851464][ C0] mark_usage+0x42/0x170 [ 17.851466][ C0] __lock_acquire+0x378/0xc10 [ 17.851467][ C0] ? __lock_acquire+0x508/0xc10 [ 17.851469][ C0] lock_acquire.part.0+0xbc/0x260 [ 17.851470][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.851472][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.851475][ C0] ? lock_acquire+0x134/0x160 [ 17.851477][ C0] _raw_read_lock_bh+0x44/0x80 [ 17.851479][ C0] ? ipv6_get_lladdr+0xa8/0x3f0 [ 17.851480][ C0] ipv6_get_lladdr+0xa8/0x3f0 [ 17.851483][ C0] ndisc_send_ns+0xf3/0x120 [ 17.851484][ C0] ? __ipv6_chk_addr_and_flags+0x251/0x5f0 [ 17.851486][ C0] ? ndisc_parse_options+0x30/0x30 [ 17.851487][ C0] ? __ipv6_chk_addr_and_flags+0x25b/0x5f0 [ 17.851490][ C0] ndisc_solicit+0x314/0x480 [ 17.851491][ C0] ? ndisc_send_ns+0x120/0x120 [ 17.851493][ C0] ? neigh_probe+0x62/0x100 [ 17.851495][ C0] neigh_probe+0xb3/0x100 [ 17.851497][ C0] __neigh_event_send+0x802/0x1070 [ 17.851499][ C0] ? warn_bogus_irq_restore+0x1/0x20 [ 17.851501][ C0] ? ___neigh_create+0x811/0x1070 [ 17.851504][ C0] neigh_resolve_output+0xbe/0x140 [ 17.851506][ C0] ip6_finish_output2+0x423/0x1300 [ 17.851508][ C0] ? ip6_xmit+0x2000/0x2000 [ 17.851509][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 17.851510][ C0] ? find_held_lock+0x2b/0x80 [ 17.851513][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.851515][ C0] ? ip6_mtu+0x15d/0x310 [ 17.851517][ C0] ip6_finish_output+0x646/0xda0 [ 17.851519][ C0] ip6_output+0x23f/0x7f0 [ 17.851521][ C0] ? ip6_finish_output+0xda0/0xda0 [ 17.851523][ C0] ? l3mdev_l3_out.constprop.0+0xe5/0x340 [ 17.851526][ C0] ip6_tnl_xmit+0x1713/0x31b0 [ip6_tunnel] [ 17.851529][ C0] ? ip_route_input+0x420/0x420 [ip6_tunnel] [ 17.851531][ C0] ? pskb_expand_head+0x4ac/0xf50 [ 17.851534][ C0] ? __lock_acquire+0x508/0xc10 [ 17.851536][ C0] ? __pskb_copy_fclone+0x1080/0x1080 [ 17.851538][ C0] __gre6_xmit+0x9b6/0x1910 [ip6_gre] [ 17.851540][ C0] ? __ipv6_chk_addr_and_flags+0x1b0/0x5f0 [ 17.851543][ C0] ? gre_build_header+0xa70/0xa70 [ip6_gre] [ 17.851545][ C0] ? ip6_tnl_xmit_ctl+0x21e/0x390 [ip6_tunnel] [ 17.851547][ C0] ? __asan_memcpy+0x3c/0x60 [ 17.851550][ C0] ip6gre_tunnel_xmit+0x8f2/0xd40 [ip6_gre] [ 17.851553][ C0] ? __gre6_xmit+0x1910/0x1910 [ip6_gre] [ 17.851554][ C0] ? sock_def_readable+0x156/0x490 [ 17.851556][ C0] ? find_held_lock+0x2b/0x80 [ 17.851559][ C0] ? dev_queue_xmit_nit+0x642/0x9e0 [ 17.851562][ C0] dev_hard_start_xmit+0xf8/0x690 [ 17.851564][ C0] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.851566][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.851567][ C0] __dev_queue_xmit+0xbf4/0x1b60 [ 17.851570][ C0] ? __lock_acquire+0x508/0xc10 [ 17.851572][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.851574][ C0] ? find_held_lock+0x2b/0x80 [ 17.851576][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 17.851578][ C0] ? ___neigh_create+0x811/0x1070 [ 17.851580][ C0] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 17.851582][ C0] ip_finish_output2+0x5b9/0x1bc0 [ 17.851584][ C0] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 17.851586][ C0] ? ip4_dst_hoplimit+0x320/0x320 [ 17.851588][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.851590][ C0] ip_output+0x1ca/0x660 [ 17.851592][ C0] ? ip_finish_output+0x460/0x460 [ 17.851593][ C0] ? ip4_frag_init+0x720/0x720 [ 17.851595][ C0] ? ip_forward+0xfa7/0x1570 [ 17.851598][ C0] ? process_backlog+0x561/0x1490 [ 17.851599][ C0] ip_rcv+0xdc/0x3d0 [ 17.851601][ C0] ? ip_local_deliver+0x4c0/0x4c0 [ 17.851603][ C0] ? mark_usage+0x61/0x170 [ 17.851604][ C0] ? __lock_acquire+0x508/0xc10 [ 17.851605][ C0] ? init_data_structures_once.part.0+0x1a7/0x450 [ 17.851607][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 17.851608][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 17.851610][ C0] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 17.851612][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.851614][ C0] process_backlog+0x2bc/0x1490 [ 17.851616][ C0] __napi_poll+0xa7/0x3b0 [ 17.851618][ C0] net_rx_action+0x513/0xf50 [ 17.851620][ C0] ? __napi_poll+0x3b0/0x3b0 [ 17.851621][ C0] ? find_held_lock+0x2b/0x80 [ 17.851624][ C0] ? clockevents_program_event+0x307/0x7e0 [ 17.851627][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.851628][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.851630][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.851632][ C0] handle_softirqs+0x1d8/0x940 [ 17.851633][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.851635][ C0] ? _local_bh_enable+0xd0/0xd0 [ 17.851636][ C0] ? trace_csd_function_exit+0xb3/0x1a0 [ 17.851638][ C0] ? rcu_is_watching+0x15/0xd0 [ 17.851640][ C0] do_softirq+0xa9/0xe0 [ 17.851642][ C0] [ 17.851642][ C0] [ 17.851643][ C0] ? __dev_queue_xmit+0x946/0x1b60 [ 17.851644][ C0] __local_bh_enable_ip+0x113/0x140 [ 17.851646][ C0] __dev_queue_xmit+0x95b/0x1b60 [ 17.851648][ C0] ? _copy_from_iter+0x1bb/0x1810 [ 17.851652][ C0] ? _copy_from_iter_flushcache+0x1970/0x1970 [ 17.851654][ C0] ? net_dim+0x730/0xd70 [ 17.851656][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 17.851659][ C0] ? packet_release+0xc70/0xc70 [ 17.851661][ C0] packet_snd+0xfad/0x1990 [ 17.851664][ C0] ? tpacket_snd+0x19e0/0x19e0 [ 17.851666][ C0] ? __might_fault+0x97/0x140 [ 17.851669][ C0] ? __might_fault+0x97/0x140 [ 17.851670][ C0] ? __might_fault+0x97/0x140 [ 17.851672][ C0] __sys_sendto+0x2c9/0x400 [ 17.851674][ C0] ? __ia32_sys_getpeername+0xd0/0xd0 [ 17.851677][ C0] ? sock_ioctl+0x3cb/0x5f0 [ 17.851680][ C0] ? do_user_addr_fault+0x325/0xe30 [ 17.851684][ C0] __x64_sys_sendto+0xe4/0x1f0 [ 17.851685][ C0] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 17.851688][ C0] ? lockdep_hardirqs_on+0x8c/0x130 [ 17.851690][ C0] ? do_syscall_64+0x82/0x590 [ 17.851691][ C0] do_syscall_64+0x117/0x590 [ 17.851692][ C0] ? trace_hardirqs_off+0xd/0x30 [ 17.851694][ C0] ? exc_page_fault+0xee/0x100 [ 17.851695][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.851697][ C0] RIP: 0033:0x7f77db65608e [ 17.851700][ 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 [ 17.851702][ C0] RSP: 002b:00007ffef0306240 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 17.851705][ C0] RAX: ffffffffffffffda RBX: 0000560df1d3fb22 RCX: 00007f77db65608e [ 17.851706][ C0] RDX: 0000000000000062 RSI: 0000560df1d3fb22 RDI: 0000000000000005 [ 17.851707][ C0] RBP: 00007ffef0306250 R08: 00007ffef03062a0 R09: 0000000000000014 [ 17.851708][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000560df1d3f830 [ 17.851709][ C0] R13: 0000000000000062 R14: 0000000000000005 R15: 0000560df1d3f830 [ 17.851711][ C0]