[ 11.624424][ T265] ip (265) used greatest stack depth: 24408 bytes left [ 15.191775][ T311] gre: GRE over IPv4 demultiplexor driver [ 15.208058][ T311] ip_gre: GRE over IPv4 tunneling driver [ 15.384481][ T316] ip (316) used greatest stack depth: 24104 bytes left [ 15.529784][ T318] ip (318) used greatest stack depth: 24080 bytes left [ 15.910054][ T322] GACT probability NOT on [ 16.128894][ T324] ip6_gre: GRE over IPv6 tunneling driver [ 16.292899][ T9] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 16.434808][ T11] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 16.469454][ T9] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 16.787770][ T9] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 17.139320][ T11] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 17.401585][ T339] br1: port 1(veth1) entered blocking state [ 17.402051][ T339] br1: port 1(veth1) entered disabled state [ 17.402456][ T339] veth1: entered allmulticast mode [ 17.404588][ T339] veth1: entered promiscuous mode [ 17.499679][ T39] br1: port 1(veth1) entered blocking state [ 17.500478][ T39] br1: port 1(veth1) entered forwarding state [ 17.577951][ T342] br1: port 2(veth2) entered blocking state [ 17.578654][ T342] br1: port 2(veth2) entered disabled state [ 17.578933][ T342] veth2: entered allmulticast mode [ 17.580869][ T342] veth2: entered promiscuous mode [ 17.690558][ T39] br1: port 2(veth2) entered blocking state [ 17.690883][ T39] br1: port 2(veth2) entered forwarding state [ 18.163162][ T11] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 18.164488][ T11] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 18.225965][ T61] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 19.059047][ T61] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 19.122816][ T11] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 23.026824][ C2] ip6_tnl_xmit_ctl: 1 callbacks suppressed [ 23.027529][ C2] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 24.978213][ T380] Mirror/redirect action on [ 32.243636][ C3] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 50.675034][ C0] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 87.538727][ C1] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 97.575252][ T738] br1: port 1(veth1) entered disabled state [ 97.674959][ T739] br1: port 2(veth2) entered disabled state [ 97.740980][ T740] veth2: left allmulticast mode [ 97.741249][ T740] veth2: left promiscuous mode [ 97.742588][ T740] br1: port 2(veth2) entered disabled state [ 97.744982][ T740] veth1: left allmulticast mode [ 97.745215][ T740] veth1: left promiscuous mode [ 97.745547][ T740] br1: port 1(veth1) entered disabled state [ 97.815065][ T740] ip (740) used greatest stack depth: 24072 bytes left [ 98.021536][ T742] [ 98.021727][ T742] ============================================ [ 98.021963][ T742] WARNING: possible recursive locking detected [ 98.022167][ T742] 6.13.0-rc5-virtme #1 Not tainted [ 98.022326][ T742] -------------------------------------------- [ 98.022533][ T742] ip/742 is trying to acquire lock: [ 98.022715][ T742] ffffffffa59d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 98.023082][ T742] [ 98.023082][ T742] but task is already holding lock: [ 98.023327][ T742] ffffffffa59d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 98.023686][ T742] [ 98.023686][ T742] other info that might help us debug this: [ 98.023952][ T742] Possible unsafe locking scenario: [ 98.023952][ T742] [ 98.024196][ T742] CPU0 [ 98.024324][ T742] ---- [ 98.024444][ T742] lock((netdev_chain).rwsem); [ 98.024616][ T742] lock((netdev_chain).rwsem); [ 98.024785][ T742] [ 98.024785][ T742] *** DEADLOCK *** [ 98.024785][ T742] [ 98.025016][ T742] May be due to missing lock nesting notation [ 98.025016][ T742] [ 98.025252][ T742] 2 locks held by ip/742: [ 98.025380][ T742] #0: ffffffffa59e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 98.025681][ T742] #1: ffffffffa59d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 98.026018][ T742] [ 98.026018][ T742] stack backtrace: [ 98.026235][ T742] CPU: 3 UID: 0 PID: 742 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 98.026485][ T742] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 98.026699][ T742] Call Trace: [ 98.026822][ T742] [ 98.026911][ T742] dump_stack_lvl+0x82/0xd0 [ 98.027079][ T742] print_deadlock_bug+0x40a/0x650 [ 98.027239][ T742] validate_chain+0x5bf/0xae0 [ 98.027421][ T742] ? __pfx_validate_chain+0x10/0x10 [ 98.027582][ T742] ? hlock_class+0x4e/0x130 [ 98.027740][ T742] ? mark_lock+0x38/0x3e0 [ 98.027863][ T742] __lock_acquire+0xb9a/0x1680 [ 98.028028][ T742] lock_acquire.part.0+0xeb/0x330 [ 98.028197][ T742] ? blocking_notifier_call_chain+0x50/0x90 [ 98.028402][ T742] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 98.028612][ T742] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 98.028792][ T742] ? trace_lock_acquire+0x14c/0x1f0 [ 98.028962][ T742] ? lock_acquire+0x32/0xc0 [ 98.029126][ T742] ? blocking_notifier_call_chain+0x50/0x90 [ 98.029328][ T742] down_read+0x9f/0x340 [ 98.029451][ T742] ? blocking_notifier_call_chain+0x50/0x90 [ 98.029655][ T742] ? __pfx_down_read+0x10/0x10 [ 98.029824][ T742] ? __lock_release+0x103/0x460 [ 98.029996][ T742] ? netconsole_netdev_event+0x2c1/0x620 [ 98.030157][ T742] ? __pfx___lock_release+0x10/0x10 [ 98.030319][ T742] blocking_notifier_call_chain+0x50/0x90 [ 98.030479][ T742] __netdev_upper_dev_unlink+0xd9/0x220 [ 98.030653][ T742] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 98.030861][ T742] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 98.031027][ T742] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 98.031234][ T742] ? rtnl_is_locked+0x15/0x20 [ 98.031407][ T742] netdev_upper_dev_unlink+0x71/0xa0 [ 98.031567][ T742] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 98.031765][ T742] ? netconsole_netdev_event+0x2c1/0x620 [ 98.031928][ T742] ? mutex_is_locked+0x1c/0x60 [ 98.032086][ T742] ? rtnl_is_locked+0x15/0x20 [ 98.032250][ T742] ? netdev_master_upper_dev_get+0x13/0x120 [ 98.032447][ T742] vrf_device_event+0x78/0xe0 [vrf] [ 98.032613][ T742] notifier_call_chain+0xcd/0x150 [ 98.032773][ T742] blocking_notifier_call_chain+0x66/0x90 [ 98.032931][ T742] unregister_netdevice_many_notify+0xa7b/0x1580 [ 98.033128][ T742] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 98.033340][ T742] ? rtnl_dellink+0x228/0xa40 [ 98.033499][ T742] ? sock_def_readable+0x11e/0x300 [ 98.033660][ T742] ? __pfx___mutex_lock+0x10/0x10 [ 98.033824][ T742] ? rtnl_is_locked+0x15/0x20 [ 98.033986][ T742] ? unregister_netdevice_queue+0x70/0x410 [ 98.034185][ T742] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 98.034379][ T742] ? __nla_validate_parse+0x48/0x3d0 [ 98.034548][ T742] rtnl_dellink+0x348/0xa40 [ 98.034708][ T742] ? __pfx_rtnl_dellink+0x10/0x10 [ 98.034877][ T742] ? find_held_lock+0x2c/0x110 [ 98.035040][ T742] ? __lock_release+0x103/0x460 [ 98.035199][ T742] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 98.035355][ T742] ? __pfx___lock_release+0x10/0x10 [ 98.035519][ T742] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 98.035678][ T742] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 98.035850][ T742] ? __pfx_rtnl_dellink+0x10/0x10 [ 98.036007][ T742] rtnetlink_rcv_msg+0x712/0xc10 [ 98.036165][ T742] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 98.036322][ T742] ? hlock_class+0x4e/0x130 [ 98.036489][ T742] ? mark_lock+0x38/0x3e0 [ 98.036611][ T742] ? __lock_acquire+0xb9a/0x1680 [ 98.036776][ T742] netlink_rcv_skb+0x130/0x360 [ 98.036947][ T742] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 98.037108][ T742] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 98.037278][ T742] ? netlink_deliver_tap+0x13e/0x340 [ 98.037451][ T742] ? netlink_deliver_tap+0xc3/0x340 [ 98.037610][ T742] netlink_unicast+0x44b/0x710 [ 98.037769][ T742] ? __pfx_netlink_unicast+0x10/0x10 [ 98.037925][ T742] ? find_held_lock+0x2c/0x110 [ 98.038093][ T742] netlink_sendmsg+0x723/0xbe0 [ 98.038248][ T742] ? __pfx_netlink_sendmsg+0x10/0x10 [ 98.038408][ T742] ____sys_sendmsg+0x7ac/0xa10 [ 98.038567][ T742] ? __pfx_____sys_sendmsg+0x10/0x10 [ 98.038725][ T742] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 98.038934][ T742] ___sys_sendmsg+0xee/0x170 [ 98.039093][ T742] ? __pfx____sys_sendmsg+0x10/0x10 [ 98.039252][ T742] ? kasan_save_stack+0x34/0x50 [ 98.039412][ T742] ? kasan_save_stack+0x24/0x50 [ 98.039568][ T742] ? __kasan_record_aux_stack+0x8e/0xa0 [ 98.039738][ T742] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 98.039953][ T742] ? __x64_sys_close+0x7c/0xd0 [ 98.040125][ T742] ? do_syscall_64+0xc1/0x1d0 [ 98.040286][ T742] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 98.040498][ T742] ? __lock_acquire+0xb9a/0x1680 [ 98.040668][ T742] ? find_held_lock+0x2c/0x110 [ 98.040837][ T742] ? __lock_release+0x103/0x460 [ 98.041010][ T742] ? __virt_addr_valid+0x22b/0x430 [ 98.041179][ T742] ? __pfx___lock_release+0x10/0x10 [ 98.041336][ T742] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 98.041496][ T742] __sys_sendmsg+0x109/0x1a0 [ 98.041664][ T742] ? __pfx___sys_sendmsg+0x10/0x10 [ 98.041831][ T742] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 98.042031][ T742] do_syscall_64+0xc1/0x1d0 [ 98.042189][ T742] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 98.042389][ T742] RIP: 0033:0x7fbbcd1219a7 [ 98.042559][ T742] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 98.043146][ T742] RSP: 002b:00007fffd21a4ae8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 98.043396][ T742] RAX: ffffffffffffffda RBX: 00007fffd21a5210 RCX: 00007fbbcd1219a7 [ 98.043638][ T742] RDX: 0000000000000000 RSI: 00007fffd21a4b50 RDI: 0000000000000005 [ 98.043889][ T742] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 98.044134][ T742] R10: 00007fbbccfdfef8 R11: 0000000000000246 R12: 0000000000000002 [ 98.044387][ T742] R13: 0000000067790352 R14: 0000000000498600 R15: 0000000000000000 [ 98.044635][ T742] [ 98.069066][ T742] ip (742) used greatest stack depth: 24008 bytes left