[ 32.714446][ T319] 8021q: 802.1Q VLAN Support v1.8 [ 33.228659][ T325] gre: GRE over IPv4 demultiplexor driver [ 33.275322][ T325] ip6_gre: GRE over IPv6 tunneling driver [ 33.309580][ T323] ip (323) used greatest stack depth: 23936 bytes left [ 36.343755][ T357] ip (357) used greatest stack depth: 23584 bytes left [ 44.756911][ T401] GACT probability NOT on [ 45.354408][ C1] [ 45.354552][ C1] ======================================================== [ 45.354927][ C1] WARNING: possible irq lock inversion dependency detected [ 45.355345][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 45.355627][ C1] -------------------------------------------------------- [ 45.356033][ C1] mausezahn/404 just changed the state of lock: [ 45.356371][ C1] ffff88800703d580 (&ndev->lock){++.-}-{2:2}, at: ipv6_get_lladdr+0xa9/0x3e0 [ 45.356864][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 45.357278][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 45.357286][ C1] [ 45.357286][ C1] [ 45.357286][ C1] and interrupts could create inverse lock ordering between them. [ 45.357286][ C1] [ 45.358297][ C1] [ 45.358297][ C1] other info that might help us debug this: [ 45.358705][ C1] Possible interrupt unsafe locking scenario: [ 45.358705][ C1] [ 45.359120][ C1] CPU0 CPU1 [ 45.359399][ C1] ---- ---- [ 45.359681][ C1] lock(&p->alloc_lock); [ 45.359895][ C1] local_irq_disable(); [ 45.360247][ C1] lock(&ndev->lock); [ 45.360599][ C1] lock(&p->alloc_lock); [ 45.360963][ C1] [ 45.361170][ C1] lock(&ndev->lock); [ 45.361385][ C1] [ 45.361385][ C1] *** DEADLOCK *** [ 45.361385][ C1] [ 45.361787][ C1] 5 locks held by mausezahn/404: [ 45.362061][ C1] #0: ffffffffad5522e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1f8/0x670 [ 45.362561][ C1] #1: ffffffffad5522e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 45.363061][ C1] #2: ffffffffad552280 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1dd/0x16d0 [ 45.363553][ C1] #3: ffffffffad5522e0 (rcu_read_lock){....}-{1:2}, at: ip6_finish_output2+0x2c4/0xf80 [ 45.364045][ C1] #4: ffffffffad5522e0 (rcu_read_lock){....}-{1:2}, at: ipv6_get_lladdr+0x39/0x3e0 [ 45.364536][ C1] [ 45.364536][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 45.365021][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 45.365306][ C1] HARDIRQ-ON-W at: [ 45.365519][ C1] __lock_acquire+0x797/0x1570 [ 45.365872][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.366223][ C1] _raw_spin_lock+0x30/0x40 [ 45.366574][ C1] set_mems_allowed+0x1d/0x210 [ 45.366929][ C1] kernel_init_freeable+0x72/0x310 [ 45.367283][ C1] kernel_init+0x20/0x200 [ 45.367631][ C1] ret_from_fork+0x31/0x70 [ 45.367980][ C1] ret_from_fork_asm+0x1a/0x30 [ 45.368328][ C1] SOFTIRQ-ON-W at: [ 45.368541][ C1] __lock_acquire+0x797/0x1570 [ 45.368889][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.369242][ C1] _raw_spin_lock+0x30/0x40 [ 45.369600][ C1] set_mems_allowed+0x1d/0x210 [ 45.369950][ C1] kernel_init_freeable+0x72/0x310 [ 45.370298][ C1] kernel_init+0x20/0x200 [ 45.370645][ C1] ret_from_fork+0x31/0x70 [ 45.371002][ C1] ret_from_fork_asm+0x1a/0x30 [ 45.371359][ C1] INITIAL USE at: [ 45.371570][ C1] __lock_acquire+0x797/0x1570 [ 45.371918][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.372270][ C1] _raw_spin_lock+0x30/0x40 [ 45.372617][ C1] set_mems_allowed+0x1d/0x210 [ 45.372964][ C1] kernel_init_freeable+0x72/0x310 [ 45.373319][ C1] kernel_init+0x20/0x200 [ 45.373664][ C1] ret_from_fork+0x31/0x70 [ 45.374014][ C1] ret_from_fork_asm+0x1a/0x30 [ 45.374365][ C1] } [ 45.374507][ C1] ... key at: [] __key.387+0x0/0x40 [ 45.374922][ C1] ... acquired at: [ 45.375129][ C1] __lock_acquire+0xaf0/0x1570 [ 45.375414][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.375695][ C1] _raw_spin_lock+0x30/0x40 [ 45.375972][ C1] __get_task_comm+0x27/0x70 [ 45.376250][ C1] ref_tracker_alloc+0x2ee/0x490 [ 45.376527][ C1] netdev_get_by_index+0x5e/0x80 [ 45.376808][ C1] fib6_nh_init+0x3d8/0x15b0 [ 45.377087][ C1] ip6_route_info_create+0xf18/0x17d0 [ 45.377365][ C1] addrconf_f6i_alloc+0x265/0x560 [ 45.377647][ C1] __ipv6_dev_ac_inc+0x25f/0xb10 [ 45.377927][ C1] addrconf_join_anycast+0x1c0/0x220 [ 45.378204][ C1] __ipv6_ifa_notify+0x6b3/0xaf0 [ 45.378480][ C1] addrconf_dad_completed+0x12b/0xe20 [ 45.378757][ C1] addrconf_dad_work+0x38c/0xab0 [ 45.379036][ C1] process_one_work+0xe2c/0x1730 [ 45.379315][ C1] worker_thread+0x587/0xd30 [ 45.379610][ C1] kthread+0x28a/0x350 [ 45.379822][ C1] ret_from_fork+0x31/0x70 [ 45.380100][ C1] ret_from_fork_asm+0x1a/0x30 [ 45.380556][ C1] [ 45.380661][ C1] -> (&ndev->lock){++.-}-{2:2} { [ 45.380911][ C1] HARDIRQ-ON-W at: [ 45.381120][ C1] __lock_acquire+0x797/0x1570 [ 45.381468][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.381942][ C1] _raw_write_lock_bh+0x38/0x50 [ 45.382295][ C1] addrconf_permanent_addr+0x6e/0x670 [ 45.382642][ C1] addrconf_notify+0x749/0xd60 [ 45.383167][ C1] notifier_call_chain+0xcd/0x150 [ 45.383443][ C1] __dev_notify_flags+0xe6/0x250 [ 45.383791][ C1] dev_change_flags+0xec/0x160 [ 45.384137][ C1] do_setlink+0x7d6/0x21e0 [ 45.384616][ C1] __rtnl_newlink+0xaa7/0xd80 [ 45.384962][ C1] rtnl_newlink+0x63/0xa0 [ 45.385307][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.385811][ C1] netlink_rcv_skb+0x130/0x360 [ 45.386114][ C1] netlink_unicast+0x449/0x710 [ 45.386458][ C1] netlink_sendmsg+0x723/0xbe0 [ 45.386804][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 45.387282][ C1] ___sys_sendmsg+0xee/0x170 [ 45.387628][ C1] __sys_sendmsg+0xcd/0x170 [ 45.387975][ C1] do_syscall_64+0xc6/0x1e0 [ 45.388462][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.388844][ C1] HARDIRQ-ON-R at: [ 45.389055][ C1] __lock_acquire+0x797/0x1570 [ 45.389402][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.389855][ C1] _raw_read_lock_bh+0x44/0x80 [ 45.390200][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 45.390546][ C1] inet6_fill_link_af+0x5e/0xe0 [ 45.391017][ C1] rtnl_fill_ifinfo+0x1612/0x29e0 [ 45.391362][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 45.391714][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 45.392284][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 45.392581][ C1] register_netdevice+0x1177/0x1690 [ 45.392928][ C1] register_netdev+0x20/0x40 [ 45.393275][ C1] sit_init_net+0x250/0x4f0 [ 45.393746][ C1] ops_init+0x9b/0x560 [ 45.394024][ C1] register_pernet_operations+0x2db/0x710 [ 45.394441][ C1] register_pernet_device+0x2a/0x60 [ 45.394925][ C1] sit_init+0x23/0xe0 [ 45.395171][ C1] do_one_initcall+0x8d/0x1e0 [ 45.395518][ C1] do_initcalls+0x1b2/0x3e0 [ 45.395865][ C1] kernel_init_freeable+0x232/0x310 [ 45.396335][ C1] kernel_init+0x20/0x200 [ 45.396688][ C1] ret_from_fork+0x31/0x70 [ 45.397037][ C1] ret_from_fork_asm+0x1a/0x30 [ 45.397527][ C1] IN-SOFTIRQ-R at: [ 45.397703][ C1] __lock_acquire+0x797/0x1570 [ 45.398053][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.398401][ C1] _raw_read_lock_bh+0x44/0x80 [ 45.398875][ C1] ipv6_get_lladdr+0xa9/0x3e0 [ 45.399228][ C1] ndisc_send_ns+0xe7/0x100 [ 45.399576][ C1] ndisc_solicit+0x2ae/0x4d0 [ 45.400198][ C1] neigh_probe+0xaa/0xf0 [ 45.400497][ C1] __neigh_event_send+0x7af/0xfe0 [ 45.400844][ C1] neigh_resolve_output+0x470/0x7c0 [ 45.401193][ C1] ip6_finish_output2+0x4ab/0xf80 [ 45.401672][ C1] ip6_finish_output+0x4ed/0xd30 [ 45.402017][ C1] ip6_output+0x1f3/0x770 [ 45.402362][ C1] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 45.402912][ C1] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 45.403313][ C1] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 45.403668][ C1] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 45.404204][ C1] dev_hard_start_xmit+0x10e/0x360 [ 45.404534][ C1] __dev_queue_xmit+0xe69/0x16d0 [ 45.404880][ C1] ip_finish_output2+0x616/0x18e0 [ 45.405349][ C1] ip_output+0x16b/0x4f0 [ 45.405694][ C1] NF_HOOK.constprop.0+0x7e/0x320 [ 45.406042][ C1] ip_rcv+0x62f/0x740 [ 45.406327][ C1] __netif_receive_skb_one_core+0x166/0x1b0 [ 45.406854][ C1] process_backlog+0x103/0x670 [ 45.407193][ C1] __napi_poll.constprop.0+0xa2/0x460 [ 45.407539][ C1] net_rx_action+0x49f/0xc00 [ 45.408012][ C1] __do_softirq+0x1f8/0x5df [ 45.408357][ C1] do_softirq+0x4d/0xa0 [ 45.408710][ C1] __local_bh_enable_ip+0xf6/0x120 [ 45.409236][ C1] __dev_queue_xmit+0x6ac/0x16d0 [ 45.409515][ C1] packet_snd+0xd08/0x1840 [ 45.409861][ C1] __sys_sendto+0x37d/0x410 [ 45.410210][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 45.410685][ C1] do_syscall_64+0xc6/0x1e0 [ 45.411032][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.411456][ C1] INITIAL USE at: [ 45.411842][ C1] __lock_acquire+0x797/0x1570 [ 45.412119][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.412464][ C1] _raw_write_lock_bh+0x38/0x50 [ 45.412812][ C1] addrconf_permanent_addr+0x6e/0x670 [ 45.413284][ C1] addrconf_notify+0x749/0xd60 [ 45.413638][ C1] notifier_call_chain+0xcd/0x150 [ 45.413987][ C1] __dev_notify_flags+0xe6/0x250 [ 45.414492][ C1] dev_change_flags+0xec/0x160 [ 45.414788][ C1] do_setlink+0x7d6/0x21e0 [ 45.415132][ C1] __rtnl_newlink+0xaa7/0xd80 [ 45.415479][ C1] rtnl_newlink+0x63/0xa0 [ 45.415949][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.416303][ C1] netlink_rcv_skb+0x130/0x360 [ 45.416651][ C1] netlink_unicast+0x449/0x710 [ 45.417137][ C1] netlink_sendmsg+0x723/0xbe0 [ 45.417449][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 45.417795][ C1] ___sys_sendmsg+0xee/0x170 [ 45.418283][ C1] __sys_sendmsg+0xcd/0x170 [ 45.418611][ C1] do_syscall_64+0xc6/0x1e0 [ 45.418965][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.419381][ C1] INITIAL READ USE at: [ 45.419734][ C1] __lock_acquire+0x797/0x1570 [ 45.420047][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.420394][ C1] _raw_read_lock_bh+0x44/0x80 [ 45.420990][ C1] inet6_fill_ifla6_attrs+0x516/0x740 [ 45.421342][ C1] inet6_fill_link_af+0x5e/0xe0 [ 45.421688][ C1] rtnl_fill_ifinfo+0x1612/0x29e0 [ 45.422034][ C1] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 45.422574][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 45.422987][ C1] rtmsg_ifinfo+0x5b/0xa0 [ 45.423332][ C1] register_netdevice+0x1177/0x1690 [ 45.423868][ C1] register_netdev+0x20/0x40 [ 45.424212][ C1] sit_init_net+0x250/0x4f0 [ 45.424559][ C1] ops_init+0x9b/0x560 [ 45.425032][ C1] register_pernet_operations+0x2db/0x710 [ 45.425445][ C1] register_pernet_device+0x2a/0x60 [ 45.425864][ C1] sit_init+0x23/0xe0 [ 45.426336][ C1] do_one_initcall+0x8d/0x1e0 [ 45.426665][ C1] do_initcalls+0x1b2/0x3e0 [ 45.427010][ C1] kernel_init_freeable+0x232/0x310 [ 45.427548][ C1] kernel_init+0x20/0x200 [ 45.427901][ C1] ret_from_fork+0x31/0x70 [ 45.428250][ C1] ret_from_fork_asm+0x1a/0x30 [ 45.428783][ C1] } [ 45.428885][ C1] ... key at: [] __key.37+0x0/0x40 [ 45.429266][ C1] ... acquired at: [ 45.429472][ C1] mark_lock+0x28d/0x3e0 [ 45.429758][ C1] mark_usage+0xd9/0x2a0 [ 45.430162][ C1] __lock_acquire+0x797/0x1570 [ 45.430439][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.430715][ C1] _raw_read_lock_bh+0x44/0x80 [ 45.430998][ C1] ipv6_get_lladdr+0xa9/0x3e0 [ 45.431450][ C1] ndisc_send_ns+0xe7/0x100 [ 45.431729][ C1] ndisc_solicit+0x2ae/0x4d0 [ 45.432005][ C1] neigh_probe+0xaa/0xf0 [ 45.432283][ C1] __neigh_event_send+0x7af/0xfe0 [ 45.432755][ C1] neigh_resolve_output+0x470/0x7c0 [ 45.432966][ C1] ip6_finish_output2+0x4ab/0xf80 [ 45.433235][ C1] ip6_finish_output+0x4ed/0xd30 [ 45.433520][ C1] ip6_output+0x1f3/0x770 [ 45.433795][ C1] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 45.434273][ C1] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 45.434614][ C1] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 45.434899][ C1] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 45.435376][ C1] dev_hard_start_xmit+0x10e/0x360 [ 45.435654][ C1] __dev_queue_xmit+0xe69/0x16d0 [ 45.435940][ C1] ip_finish_output2+0x616/0x18e0 [ 45.436219][ C1] ip_output+0x16b/0x4f0 [ 45.436670][ C1] NF_HOOK.constprop.0+0x7e/0x320 [ 45.436880][ C1] ip_rcv+0x62f/0x740 [ 45.437083][ C1] __netif_receive_skb_one_core+0x166/0x1b0 [ 45.437427][ C1] process_backlog+0x103/0x670 [ 45.437703][ C1] __napi_poll.constprop.0+0xa2/0x460 [ 45.438102][ C1] net_rx_action+0x49f/0xc00 [ 45.438385][ C1] __do_softirq+0x1f8/0x5df [ 45.438661][ C1] do_softirq+0x4d/0xa0 [ 45.438872][ C1] __local_bh_enable_ip+0xf6/0x120 [ 45.439304][ C1] __dev_queue_xmit+0x6ac/0x16d0 [ 45.439533][ C1] packet_snd+0xd08/0x1840 [ 45.439819][ C1] __sys_sendto+0x37d/0x410 [ 45.440097][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 45.440521][ C1] do_syscall_64+0xc6/0x1e0 [ 45.440751][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.441108][ C1] [ 45.441254][ C1] [ 45.441254][ C1] stack backtrace: [ 45.441609][ C1] CPU: 1 PID: 404 Comm: mausezahn Not tainted 6.9.0-rc1-virtme #1 [ 45.442228][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.442871][ C1] Call Trace: [ 45.443233][ C1] [ 45.443373][ C1] dump_stack_lvl+0x82/0xd0 [ 45.443669][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 45.444036][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 45.444401][ C1] ? __pfx_usage_skip+0x10/0x10 [ 45.444815][ C1] ? __pfx_usage_match+0x10/0x10 [ 45.445061][ C1] ? arch_stack_walk+0xa2/0xf0 [ 45.445354][ C1] mark_lock_irq+0x4cd/0xa10 [ 45.445648][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 45.446068][ C1] ? stack_trace_save+0x94/0xd0 [ 45.446366][ C1] ? save_trace+0x8f/0x5b0 [ 45.446658][ C1] mark_lock+0x28d/0x3e0 [ 45.446881][ C1] mark_usage+0xd9/0x2a0 [ 45.447101][ C1] __lock_acquire+0x797/0x1570 [ 45.447523][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.447796][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 45.448089][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 45.448381][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 45.448803][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 45.449094][ C1] ? lock_acquire+0x32/0xc0 [ 45.449385][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 45.449687][ C1] _raw_read_lock_bh+0x44/0x80 [ 45.450136][ C1] ? ipv6_get_lladdr+0xa9/0x3e0 [ 45.450378][ C1] ipv6_get_lladdr+0xa9/0x3e0 [ 45.450669][ C1] ndisc_send_ns+0xe7/0x100 [ 45.450963][ C1] ? __pfx_ndisc_send_ns+0x10/0x10 [ 45.451391][ C1] ? __ipv6_chk_addr_and_flags+0x393/0x650 [ 45.451743][ C1] ndisc_solicit+0x2ae/0x4d0 [ 45.452034][ C1] ? __pfx_ndisc_solicit+0x10/0x10 [ 45.452327][ C1] ? neigh_probe+0x57/0xf0 [ 45.452792][ C1] neigh_probe+0xaa/0xf0 [ 45.452956][ C1] __neigh_event_send+0x7af/0xfe0 [ 45.453228][ C1] ? do_raw_write_lock+0xe1/0x3b0 [ 45.453519][ C1] ? __pfx_do_raw_write_lock+0x10/0x10 [ 45.453811][ C1] neigh_resolve_output+0x470/0x7c0 [ 45.454231][ C1] ? __local_bh_enable_ip+0xa6/0x120 [ 45.454522][ C1] ? ___neigh_create+0x7c6/0xe10 [ 45.454816][ C1] ip6_finish_output2+0x4ab/0xf80 [ 45.455111][ C1] ip6_finish_output+0x4ed/0xd30 [ 45.455557][ C1] ? __pfx_flow_hash_from_keys+0x10/0x10 [ 45.455802][ C1] ip6_output+0x1f3/0x770 [ 45.456023][ C1] ? __pfx_ip6_output+0x10/0x10 [ 45.456312][ C1] ? ip6_make_flowlabel.constprop.0+0x1c4/0x2f0 [ip6_tunnel] [ 45.456906][ C1] ? __pfx_ip6_make_flowlabel.constprop.0+0x10/0x10 [ip6_tunnel] [ 45.457196][ C1] ? ip6_local_out+0x25/0x3b0 [ 45.457414][ C1] ip6tunnel_xmit.constprop.0+0x16b/0x360 [ip6_tunnel] [ 45.457765][ C1] ip6_tnl_xmit+0x1266/0x3490 [ip6_tunnel] [ 45.458248][ C1] ? __kasan_kmalloc+0x7f/0x90 [ 45.458533][ C1] ? trace_kmalloc+0x2a/0xe0 [ 45.458827][ C1] ? sk_getsockopt+0x2048/0x2c40 [ 45.459119][ C1] ? __pfx_ip6_tnl_xmit+0x10/0x10 [ip6_tunnel] [ 45.459616][ C1] ? pskb_expand_head+0x4ac/0x1020 [ 45.459909][ C1] ? __pfx_pskb_expand_head+0x10/0x10 [ 45.460198][ C1] ? __ipv6_chk_addr_and_flags+0x38e/0x650 [ 45.460698][ C1] ? __gre6_xmit+0x706/0x1960 [ip6_gre] [ 45.460925][ C1] __gre6_xmit+0x706/0x1960 [ip6_gre] [ 45.461218][ C1] ? __pfx___gre6_xmit+0x10/0x10 [ip6_gre] [ 45.461594][ C1] ip6gre_tunnel_xmit+0x920/0xf10 [ip6_gre] [ 45.462134][ C1] ? __pfx_ip6gre_tunnel_xmit+0x10/0x10 [ip6_gre] [ 45.462450][ C1] ? find_held_lock+0x2c/0x110 [ 45.462742][ C1] ? __lock_release+0x103/0x460 [ 45.463034][ C1] ? dev_queue_xmit_nit+0x775/0xad0 [ 45.463556][ C1] ? dev_queue_xmit_nit+0x759/0xad0 [ 45.463796][ C1] ? __pfx_qdisc_pkt_len_init+0x10/0x10 [ 45.464087][ C1] ? dev_queue_xmit_nit+0x775/0xad0 [ 45.464362][ C1] dev_hard_start_xmit+0x10e/0x360 [ 45.464829][ C1] ? validate_xmit_skb.constprop.0+0x2a/0x4f0 [ 45.465123][ C1] __dev_queue_xmit+0xe69/0x16d0 [ 45.465414][ C1] ? do_raw_write_lock+0x122/0x3b0 [ 45.465705][ C1] ? __pfx_do_raw_write_lock+0x10/0x10 [ 45.466137][ C1] ? __pfx___dev_queue_xmit+0x10/0x10 [ 45.466410][ C1] ? ___neigh_create+0x7c6/0xe10 [ 45.466704][ C1] ? ___neigh_create+0x7c6/0xe10 [ 45.467006][ C1] ip_finish_output2+0x616/0x18e0 [ 45.467299][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 45.467773][ C1] ? __pfx_ip_finish_output2+0x10/0x10 [ 45.468059][ C1] ? __ip_finish_output+0x10f/0x770 [ 45.468353][ C1] ip_output+0x16b/0x4f0 [ 45.468573][ C1] ? __pfx_ip_output+0x10/0x10 [ 45.468987][ C1] ? pskb_expand_head+0x485/0x1020 [ 45.469284][ C1] ? ip_route_input_noref+0x10e/0x230 [ 45.469579][ C1] NF_HOOK.constprop.0+0x7e/0x320 [ 45.469881][ C1] ? __pfx_NF_HOOK.constprop.0+0x10/0x10 [ 45.470331][ C1] ? ip_forward+0xdc8/0x1a10 [ 45.470576][ C1] ip_rcv+0x62f/0x740 [ 45.470797][ C1] ? __pfx_ip_rcv+0x10/0x10 [ 45.471091][ C1] ? lock_acquire.part.0+0xeb/0x330 [ 45.471381][ C1] ? process_backlog+0x1f8/0x670 [ 45.471796][ C1] ? __pfx_ip_rcv+0x10/0x10 [ 45.472092][ C1] __netif_receive_skb_one_core+0x166/0x1b0 [ 45.472454][ C1] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 45.472992][ C1] ? process_backlog+0x1f8/0x670 [ 45.473215][ C1] ? lock_acquire+0x32/0xc0 [ 45.473500][ C1] ? process_backlog+0x1f8/0x670 [ 45.473793][ C1] process_backlog+0x103/0x670 [ 45.474095][ C1] __napi_poll.constprop.0+0xa2/0x460 [ 45.474513][ C1] net_rx_action+0x49f/0xc00 [ 45.474814][ C1] ? __pfx_net_rx_action+0x10/0x10 [ 45.475112][ C1] __do_softirq+0x1f8/0x5df [ 45.475405][ C1] ? __dev_queue_xmit+0x697/0x16d0 [ 45.475823][ C1] do_softirq+0x4d/0xa0 [ 45.475996][ C1] [ 45.476140][ C1] [ 45.476286][ C1] __local_bh_enable_ip+0xf6/0x120 [ 45.476561][ C1] ? __dev_queue_xmit+0x697/0x16d0 [ 45.476976][ C1] __dev_queue_xmit+0x6ac/0x16d0 [ 45.477237][ C1] ? packet_parse_headers+0x231/0x9d0 [ 45.477513][ C1] ? packet_parse_headers+0x231/0x9d0 [ 45.477790][ C1] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 45.478066][ C1] ? __pfx___dev_queue_xmit+0x10/0x10 [ 45.478469][ C1] ? dev_get_by_index+0x177/0x270 [ 45.478730][ C1] packet_snd+0xd08/0x1840 [ 45.479009][ C1] ? __pfx___lock_release+0x10/0x10 [ 45.479292][ C1] ? __pfx_packet_snd+0x10/0x10 [ 45.479703][ C1] ? __might_fault+0xc3/0x170 [ 45.479979][ C1] ? trace_raw_output_mmap_lock_acquire_returned+0x60/0x1e0 [ 45.480389][ C1] ? __might_fault+0x11b/0x170 [ 45.480668][ C1] __sys_sendto+0x37d/0x410 [ 45.481070][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 45.481335][ C1] ? sock_ioctl+0x3bc/0x590 [ 45.481611][ C1] ? __might_fault+0xc3/0x170 [ 45.481888][ C1] ? trace_rseq_update+0xd2/0x130 [ 45.482293][ C1] ? __rseq_handle_notify_resume+0x354/0x4e0 [ 45.482637][ C1] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 45.482983][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 45.483259][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 45.483716][ C1] do_syscall_64+0xc6/0x1e0 [ 45.483987][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.484332][ C1] RIP: 0033:0x7fb76332e85a [ 45.484871][ C1] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 [ 45.485782][ C1] RSP: 002b:00007fff9f5c63d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 45.486325][ C1] RAX: ffffffffffffffda RBX: 00000000305f19d0 RCX: 00007fb76332e85a [ 45.486740][ C1] RDX: 0000000000000062 RSI: 00000000305f15c2 RDI: 0000000000000005 [ 45.487158][ C1] RBP: 00000000305f15c2 R08: 00007fff9f5c63e0 R09: 0000000000000014 [ 45.487686][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 45.488093][ C1] R13: 0000000000000062 R14: 00007fff9f5c63e0 R15: 0000000000000000 [ 45.488515][ C1]