[ 10.664737][ T249] ip (249) used greatest stack depth: 24528 bytes left [ 11.056964][ T260] ip (260) used greatest stack depth: 24416 bytes left [ 13.601748][ T300] 8021q: 802.1Q VLAN Support v1.8 [ 17.831369][ T350] br1: port 1(vx10) entered blocking state [ 17.831834][ T350] br1: port 1(vx10) entered disabled state [ 17.832878][ T350] vx10: entered allmulticast mode [ 17.834932][ T350] vx10: entered promiscuous mode [ 17.835949][ T350] br1: port 1(vx10) entered blocking state [ 17.836311][ T350] br1: port 1(vx10) entered forwarding state [ 18.188848][ T355] br1: port 2(vx20) entered blocking state [ 18.189512][ T355] br1: port 2(vx20) entered disabled state [ 18.189800][ T355] vx20: entered allmulticast mode [ 18.192219][ T355] vx20: entered promiscuous mode [ 18.193093][ T355] br1: port 2(vx20) entered blocking state [ 18.193383][ T355] br1: port 2(vx20) entered forwarding state [ 18.360861][ T357] br1: port 3(veth1) entered blocking state [ 18.361169][ T357] br1: port 3(veth1) entered disabled state [ 18.361464][ T357] veth1: entered allmulticast mode [ 18.364496][ T357] veth1: entered promiscuous mode [ 18.460874][ T58] br1: port 3(veth1) entered blocking state [ 18.461329][ T58] br1: port 3(veth1) entered forwarding state [ 18.848854][ T362] br1: port 4(veth2) entered blocking state [ 18.849164][ T362] br1: port 4(veth2) entered disabled state [ 18.849448][ T362] veth2: entered allmulticast mode [ 18.851471][ T362] veth2: entered promiscuous mode [ 18.934209][ T37] br1: port 4(veth2) entered blocking state [ 18.934566][ T37] br1: port 4(veth2) entered forwarding state [ 22.368426][ T410] ip (410) used greatest stack depth: 24048 bytes left [ 22.538900][ T412] br2: port 1(w1) entered blocking state [ 22.540298][ T412] br2: port 1(w1) entered disabled state [ 22.540603][ T412] w1: entered allmulticast mode [ 22.542571][ T412] w1: entered promiscuous mode [ 23.228952][ T420] br2: port 2(vx10) entered blocking state [ 23.230383][ T420] br2: port 2(vx10) entered disabled state [ 23.230772][ T420] vx10: entered allmulticast mode [ 23.232750][ T420] vx10: entered promiscuous mode [ 23.233440][ T420] br2: port 2(vx10) entered blocking state [ 23.233764][ T420] br2: port 2(vx10) entered forwarding state [ 23.873111][ T427] br2: port 3(vx20) entered blocking state [ 23.873640][ T427] br2: port 3(vx20) entered disabled state [ 23.874612][ T427] vx20: entered allmulticast mode [ 23.878061][ T427] vx20: entered promiscuous mode [ 23.887102][ T427] br2: port 3(vx20) entered blocking state [ 23.887447][ T427] br2: port 3(vx20) entered forwarding state [ 24.628009][ T37] br2: port 1(w1) entered blocking state [ 24.628475][ T37] br2: port 1(w1) entered forwarding state [ 27.276177][ T469] br2: port 1(w1) entered blocking state [ 27.276571][ T469] br2: port 1(w1) entered disabled state [ 27.276968][ T469] w1: entered allmulticast mode [ 27.280247][ T469] w1: entered promiscuous mode [ 27.940636][ T477] br2: port 2(vx10) entered blocking state [ 27.940931][ T477] br2: port 2(vx10) entered disabled state [ 27.942233][ T477] vx10: entered allmulticast mode [ 27.944181][ T477] vx10: entered promiscuous mode [ 27.944777][ T477] br2: port 2(vx10) entered blocking state [ 27.945023][ T477] br2: port 2(vx10) entered forwarding state [ 28.617900][ T484] br2: port 3(vx20) entered blocking state [ 28.618283][ T484] br2: port 3(vx20) entered disabled state [ 28.618560][ T484] vx20: entered allmulticast mode [ 28.620559][ T484] vx20: entered promiscuous mode [ 28.621162][ T484] br2: port 3(vx20) entered blocking state [ 28.621406][ T484] br2: port 3(vx20) entered forwarding state [ 29.413611][ T58] br2: port 1(w1) entered blocking state [ 29.413926][ T58] br2: port 1(w1) entered forwarding state [ 40.528527][ T571] GACT probability NOT on [ 168.512865][ T1373] veth3: entered promiscuous mode [ 219.777616][ T2300] veth3: left promiscuous mode [ 220.280474][ T2306] veth3: entered promiscuous mode [ 271.739266][ T3233] veth3: left promiscuous mode [ 272.748890][ T3251] vx20: left allmulticast mode [ 272.749312][ T3251] vx20: left promiscuous mode [ 272.749857][ T3251] br1: port 2(vx20) entered disabled state [ 272.842779][ T3252] vx10: left allmulticast mode [ 272.843030][ T3252] vx10: left promiscuous mode [ 272.843365][ T3252] br1: port 1(vx10) entered disabled state [ 278.265583][ T3257] br1: port 1(vx10) entered blocking state [ 278.265971][ T3257] br1: port 1(vx10) entered disabled state [ 278.266877][ T3257] vx10: entered allmulticast mode [ 278.269184][ T3257] vx10: entered promiscuous mode [ 278.269807][ T3257] br1: port 1(vx10) entered blocking state [ 278.270114][ T3257] br1: port 1(vx10) entered forwarding state [ 278.450503][ T3259] br1: port 2(vx20) entered blocking state [ 278.450813][ T3259] br1: port 2(vx20) entered disabled state [ 278.451112][ T3259] vx20: entered allmulticast mode [ 278.453067][ T3259] vx20: entered promiscuous mode [ 278.453613][ T3259] br1: port 2(vx20) entered blocking state [ 278.453869][ T3259] br1: port 2(vx20) entered forwarding state [ 418.707353][ T4088] veth3: entered promiscuous mode [ 473.526074][ T5015] veth3: left promiscuous mode [ 474.148943][ T5021] veth3: entered promiscuous mode [ 529.498014][ T5948] veth3: left promiscuous mode [ 889.396715][ T11] vx20: left allmulticast mode [ 889.397059][ T11] vx20: left promiscuous mode [ 889.397460][ T11] br2: port 3(vx20) entered disabled state [ 889.402235][ T11] vx10: left allmulticast mode [ 889.402481][ T11] vx10: left promiscuous mode [ 889.402822][ T11] br2: port 2(vx10) entered disabled state [ 889.405482][ T11] w1: left allmulticast mode [ 889.405705][ T11] w1: left promiscuous mode [ 889.406154][ T11] br2: port 1(w1) entered disabled state [ 889.841722][T10487] ip (10487) used greatest stack depth: 23904 bytes left [ 889.933637][ T11] vx20: left allmulticast mode [ 889.933916][ T11] vx20: left promiscuous mode [ 889.935105][ T11] br2: port 3(vx20) entered disabled state [ 889.938349][ T11] vx10: left allmulticast mode [ 889.938577][ T11] vx10: left promiscuous mode [ 889.938915][ T11] br2: port 2(vx10) entered disabled state [ 889.941437][ T11] w1: left allmulticast mode [ 889.941673][ T11] w1: left promiscuous mode [ 889.942037][ T11] br2: port 1(w1) entered disabled state [ 892.687837][T10515] br1: port 4(veth2) entered disabled state [ 892.786711][T10516] veth2: left allmulticast mode [ 892.787021][T10516] veth2: left promiscuous mode [ 892.787401][T10516] br1: port 4(veth2) entered disabled state [ 893.218063][T10520] br1: port 3(veth1) entered disabled state [ 893.328657][T10521] veth1: left allmulticast mode [ 893.329020][T10521] veth1: left promiscuous mode [ 893.329543][T10521] br1: port 3(veth1) entered disabled state [ 893.505872][T10523] vx20: left allmulticast mode [ 893.506187][T10523] vx20: left promiscuous mode [ 893.506530][T10523] br1: port 2(vx20) entered disabled state [ 893.945462][T10527] vx10: left allmulticast mode [ 893.945838][T10527] vx10: left promiscuous mode [ 893.946354][T10527] br1: port 1(vx10) entered disabled state [ 895.009858][T10537] [ 895.010066][T10537] ============================================ [ 895.010390][T10537] WARNING: possible recursive locking detected [ 895.010633][T10537] 6.13.0-rc5-virtme #1 Not tainted [ 895.010836][T10537] -------------------------------------------- [ 895.011072][T10537] ip/10537 is trying to acquire lock: [ 895.011227][T10537] ffffffffa73d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 895.011547][T10537] [ 895.011547][T10537] but task is already holding lock: [ 895.011763][T10537] ffffffffa73d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 895.012069][T10537] [ 895.012069][T10537] other info that might help us debug this: [ 895.012307][T10537] Possible unsafe locking scenario: [ 895.012307][T10537] [ 895.012529][T10537] CPU0 [ 895.012651][T10537] ---- [ 895.012824][T10537] lock((netdev_chain).rwsem); [ 895.012977][T10537] lock((netdev_chain).rwsem); [ 895.013155][T10537] [ 895.013155][T10537] *** DEADLOCK *** [ 895.013155][T10537] [ 895.013384][T10537] May be due to missing lock nesting notation [ 895.013384][T10537] [ 895.013613][T10537] 2 locks held by ip/10537: [ 895.013762][T10537] #0: ffffffffa73e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 895.014114][T10537] #1: ffffffffa73d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 895.014511][T10537] [ 895.014511][T10537] stack backtrace: [ 895.014695][T10537] CPU: 3 UID: 0 PID: 10537 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 895.014966][T10537] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 895.015180][T10537] Call Trace: [ 895.015297][T10537] [ 895.015378][T10537] dump_stack_lvl+0x82/0xd0 [ 895.015598][T10537] print_deadlock_bug+0x40a/0x650 [ 895.015795][T10537] validate_chain+0x5bf/0xae0 [ 895.015989][T10537] ? __pfx_validate_chain+0x10/0x10 [ 895.016174][T10537] ? hlock_class+0x4e/0x130 [ 895.016351][T10537] ? mark_lock+0x38/0x3e0 [ 895.016467][T10537] __lock_acquire+0xb9a/0x1680 [ 895.016621][T10537] lock_acquire.part.0+0xeb/0x330 [ 895.016774][T10537] ? blocking_notifier_call_chain+0x50/0x90 [ 895.017037][T10537] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 895.017277][T10537] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 895.017429][T10537] ? trace_lock_acquire+0x14c/0x1f0 [ 895.017594][T10537] ? lock_acquire+0x32/0xc0 [ 895.017749][T10537] ? blocking_notifier_call_chain+0x50/0x90 [ 895.017995][T10537] down_read+0x9f/0x340 [ 895.018158][T10537] ? blocking_notifier_call_chain+0x50/0x90 [ 895.018424][T10537] ? __pfx_down_read+0x10/0x10 [ 895.018578][T10537] ? __lock_release+0x103/0x460 [ 895.018726][T10537] ? netconsole_netdev_event+0x2c1/0x620 [ 895.018885][T10537] ? __pfx___lock_release+0x10/0x10 [ 895.019083][T10537] blocking_notifier_call_chain+0x50/0x90 [ 895.019256][T10537] __netdev_upper_dev_unlink+0xd9/0x220 [ 895.019412][T10537] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 895.019599][T10537] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 895.019777][T10537] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 895.020056][T10537] ? rtnl_is_locked+0x15/0x20 [ 895.020227][T10537] netdev_upper_dev_unlink+0x71/0xa0 [ 895.020377][T10537] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 895.020626][T10537] ? netconsole_netdev_event+0x2c1/0x620 [ 895.020777][T10537] ? mutex_is_locked+0x1c/0x60 [ 895.020995][T10537] ? rtnl_is_locked+0x15/0x20 [ 895.021175][T10537] ? netdev_master_upper_dev_get+0x13/0x120 [ 895.021361][T10537] vrf_device_event+0x78/0xe0 [vrf] [ 895.021575][T10537] notifier_call_chain+0xcd/0x150 [ 895.021728][T10537] blocking_notifier_call_chain+0x66/0x90 [ 895.021880][T10537] unregister_netdevice_many_notify+0xa7b/0x1580 [ 895.022075][T10537] ? hlock_class+0x4e/0x130 [ 895.022297][T10537] ? mark_lock+0x38/0x3e0 [ 895.022459][T10537] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 895.022649][T10537] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 895.022848][T10537] ? kfree+0xf3/0x330 [ 895.023022][T10537] ? vlan_vid_del+0x310/0x5e0 [ 895.023204][T10537] ? vlan_vid_del+0x310/0x5e0 [ 895.023363][T10537] rtnl_dellink+0x348/0xa40 [ 895.023518][T10537] ? __pfx_rtnl_dellink+0x10/0x10 [ 895.023685][T10537] ? find_held_lock+0x2c/0x110 [ 895.023846][T10537] ? __lock_release+0x103/0x460 [ 895.024052][T10537] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 895.024217][T10537] ? __pfx___lock_release+0x10/0x10 [ 895.024438][T10537] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 895.024608][T10537] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 895.024774][T10537] ? __pfx_rtnl_dellink+0x10/0x10 [ 895.024966][T10537] rtnetlink_rcv_msg+0x712/0xc10 [ 895.025125][T10537] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 895.025346][T10537] ? hlock_class+0x4e/0x130 [ 895.025498][T10537] ? mark_lock+0x38/0x3e0 [ 895.025621][T10537] ? __lock_acquire+0xb9a/0x1680 [ 895.025810][T10537] netlink_rcv_skb+0x130/0x360 [ 895.025984][T10537] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 895.026157][T10537] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 895.026379][T10537] ? netlink_deliver_tap+0x13e/0x340 [ 895.026528][T10537] ? netlink_deliver_tap+0xc3/0x340 [ 895.026700][T10537] netlink_unicast+0x44b/0x710 [ 895.026893][T10537] ? __pfx_netlink_unicast+0x10/0x10 [ 895.027041][T10537] netlink_sendmsg+0x723/0xbe0 [ 895.027199][T10537] ? __pfx_netlink_sendmsg+0x10/0x10 [ 895.027352][T10537] ____sys_sendmsg+0x7ac/0xa10 [ 895.027557][T10537] ? __pfx_____sys_sendmsg+0x10/0x10 [ 895.027704][T10537] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 895.027898][T10537] ___sys_sendmsg+0xee/0x170 [ 895.028123][T10537] ? __pfx____sys_sendmsg+0x10/0x10 [ 895.028277][T10537] ? kasan_save_stack+0x34/0x50 [ 895.028428][T10537] ? kasan_save_stack+0x24/0x50 [ 895.028637][T10537] ? __kasan_record_aux_stack+0x8e/0xa0 [ 895.028787][T10537] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 895.028970][T10537] ? __x64_sys_close+0x7c/0xd0 [ 895.029189][T10537] ? do_syscall_64+0xc1/0x1d0 [ 895.029376][T10537] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 895.029595][T10537] ? __lock_acquire+0xb9a/0x1680 [ 895.029748][T10537] ? find_held_lock+0x2c/0x110 [ 895.029898][T10537] ? __lock_release+0x103/0x460 [ 895.030045][T10537] ? __virt_addr_valid+0x22b/0x430 [ 895.030262][T10537] ? __pfx___lock_release+0x10/0x10 [ 895.030479][T10537] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 895.030639][T10537] __sys_sendmsg+0x109/0x1a0 [ 895.030793][T10537] ? __pfx___sys_sendmsg+0x10/0x10 [ 895.031009][T10537] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 895.031218][T10537] do_syscall_64+0xc1/0x1d0 [ 895.031368][T10537] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 895.031559][T10537] RIP: 0033:0x7fab672139a7 [ 895.031717][T10537] 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 [ 895.032340][T10537] RSP: 002b:00007ffcd0b74598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 895.032594][T10537] RAX: ffffffffffffffda RBX: 00007ffcd0b74cc0 RCX: 00007fab672139a7 [ 895.032817][T10537] RDX: 0000000000000000 RSI: 00007ffcd0b74600 RDI: 0000000000000005 [ 895.033049][T10537] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 895.033300][T10537] R10: 00007fab670d1ef8 R11: 0000000000000246 R12: 0000000000000002 [ 895.033523][T10537] R13: 00000000677951f2 R14: 0000000000498600 R15: 0000000000000000 [ 895.033749][T10537] [ 895.057044][T10537] ip (10537) used greatest stack depth: 23832 bytes left