[ 11.686349][ T249] ip (249) used greatest stack depth: 23440 bytes left [ 14.775052][ T300] 8021q: 802.1Q VLAN Support v1.8 [ 18.925473][ T350] br1: port 1(vx10) entered blocking state [ 18.926010][ T350] br1: port 1(vx10) entered disabled state [ 18.926895][ T350] vx10: entered allmulticast mode [ 18.929059][ T350] vx10: entered promiscuous mode [ 18.930172][ T350] br1: port 1(vx10) entered blocking state [ 18.930570][ T350] br1: port 1(vx10) entered forwarding state [ 19.337357][ T355] br1: port 2(vx20) entered blocking state [ 19.337720][ T355] br1: port 2(vx20) entered disabled state [ 19.338022][ T355] vx20: entered allmulticast mode [ 19.340514][ T355] vx20: entered promiscuous mode [ 19.341473][ T355] br1: port 2(vx20) entered blocking state [ 19.341765][ T355] br1: port 2(vx20) entered forwarding state [ 19.553363][ T357] br1: port 3(veth1) entered blocking state [ 19.553716][ T357] br1: port 3(veth1) entered disabled state [ 19.554030][ T357] veth1: entered allmulticast mode [ 19.556000][ T357] veth1: entered promiscuous mode [ 19.639291][ T45] br1: port 3(veth1) entered blocking state [ 19.639777][ T45] br1: port 3(veth1) entered forwarding state [ 20.073724][ T362] br1: port 4(veth2) entered blocking state [ 20.074055][ T362] br1: port 4(veth2) entered disabled state [ 20.074395][ T362] veth2: entered allmulticast mode [ 20.076380][ T362] veth2: entered promiscuous mode [ 20.174539][ T39] br1: port 4(veth2) entered blocking state [ 20.174865][ T39] br1: port 4(veth2) entered forwarding state [ 24.190889][ T412] br2: port 1(w1) entered blocking state [ 24.191266][ T412] br2: port 1(w1) entered disabled state [ 24.191624][ T412] w1: entered allmulticast mode [ 24.194593][ T412] w1: entered promiscuous mode [ 24.834013][ T420] br2: port 2(vx10) entered blocking state [ 24.834455][ T420] br2: port 2(vx10) entered disabled state [ 24.834739][ T420] vx10: entered allmulticast mode [ 24.836712][ T420] vx10: entered promiscuous mode [ 24.837381][ T420] br2: port 2(vx10) entered blocking state [ 24.837666][ T420] br2: port 2(vx10) entered forwarding state [ 25.464596][ T427] br2: port 3(vx20) entered blocking state [ 25.464907][ T427] br2: port 3(vx20) entered disabled state [ 25.465340][ T427] vx20: entered allmulticast mode [ 25.468532][ T427] vx20: entered promiscuous mode [ 25.477883][ T427] br2: port 3(vx20) entered blocking state [ 25.478282][ T427] br2: port 3(vx20) entered forwarding state [ 26.188783][ T56] br2: port 1(w1) entered blocking state [ 26.189377][ T56] br2: port 1(w1) entered forwarding state [ 28.602759][ T470] br2: port 1(w1) entered blocking state [ 28.603006][ T470] br2: port 1(w1) entered disabled state [ 28.603691][ T470] w1: entered allmulticast mode [ 28.605671][ T470] w1: entered promiscuous mode [ 29.224126][ T478] br2: port 2(vx10) entered blocking state [ 29.225368][ T478] br2: port 2(vx10) entered disabled state [ 29.225686][ T478] vx10: entered allmulticast mode [ 29.227629][ T478] vx10: entered promiscuous mode [ 29.228272][ T478] br2: port 2(vx10) entered blocking state [ 29.228610][ T478] br2: port 2(vx10) entered forwarding state [ 29.810120][ T485] br2: port 3(vx20) entered blocking state [ 29.811595][ T485] br2: port 3(vx20) entered disabled state [ 29.812004][ T485] vx20: entered allmulticast mode [ 29.814091][ T485] vx20: entered promiscuous mode [ 29.815363][ T485] br2: port 3(vx20) entered blocking state [ 29.815710][ T485] br2: port 3(vx20) entered forwarding state [ 30.539824][ T56] br2: port 1(w1) entered blocking state [ 30.540193][ T56] br2: port 1(w1) entered forwarding state [ 42.086612][ T572] GACT probability NOT on [ 136.227789][ T68] vx20: left allmulticast mode [ 136.228113][ T68] vx20: left promiscuous mode [ 136.228485][ T68] br2: port 3(vx20) entered disabled state [ 136.231806][ T68] vx10: left allmulticast mode [ 136.232150][ T68] vx10: left promiscuous mode [ 136.232492][ T68] br2: port 2(vx10) entered disabled state [ 136.234469][ T68] w1: left allmulticast mode [ 136.234675][ T68] w1: left promiscuous mode [ 136.234984][ T68] br2: port 1(w1) entered disabled state [ 136.779747][ T68] vx20: left allmulticast mode [ 136.779976][ T68] vx20: left promiscuous mode [ 136.780379][ T68] br2: port 3(vx20) entered disabled state [ 136.783575][ T68] vx10: left allmulticast mode [ 136.783789][ T68] vx10: left promiscuous mode [ 136.784102][ T68] br2: port 2(vx10) entered disabled state [ 136.786546][ T68] w1: left allmulticast mode [ 136.786735][ T68] w1: left promiscuous mode [ 136.787079][ T68] br2: port 1(w1) entered disabled state [ 139.153101][ T780] br1: port 4(veth2) entered disabled state [ 139.239957][ T781] veth2: left allmulticast mode [ 139.240205][ T781] veth2: left promiscuous mode [ 139.240617][ T781] br1: port 4(veth2) entered disabled state [ 139.638718][ T785] br1: port 3(veth1) entered disabled state [ 139.716036][ T786] veth1: left allmulticast mode [ 139.716293][ T786] veth1: left promiscuous mode [ 139.716603][ T786] br1: port 3(veth1) entered disabled state [ 139.887650][ T788] vx20: left allmulticast mode [ 139.887940][ T788] vx20: left promiscuous mode [ 139.888312][ T788] br1: port 2(vx20) entered disabled state [ 140.255349][ T792] vx10: left allmulticast mode [ 140.255633][ T792] vx10: left promiscuous mode [ 140.255999][ T792] br1: port 1(vx10) entered disabled state [ 141.327779][ T802] [ 141.327941][ T802] ============================================ [ 141.328221][ T802] WARNING: possible recursive locking detected [ 141.328506][ T802] 6.13.0-rc5-virtme #1 Not tainted [ 141.328733][ T802] -------------------------------------------- [ 141.329005][ T802] ip/802 is trying to acquire lock: [ 141.329228][ T802] ffffffffa55d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 141.329624][ T802] [ 141.329624][ T802] but task is already holding lock: [ 141.329846][ T802] ffffffffa55d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 141.330159][ T802] [ 141.330159][ T802] other info that might help us debug this: [ 141.330373][ T802] Possible unsafe locking scenario: [ 141.330373][ T802] [ 141.330587][ T802] CPU0 [ 141.330693][ T802] ---- [ 141.330805][ T802] lock((netdev_chain).rwsem); [ 141.330953][ T802] lock((netdev_chain).rwsem); [ 141.331099][ T802] [ 141.331099][ T802] *** DEADLOCK *** [ 141.331099][ T802] [ 141.331311][ T802] May be due to missing lock nesting notation [ 141.331311][ T802] [ 141.331522][ T802] 2 locks held by ip/802: [ 141.331637][ T802] #0: ffffffffa55e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 141.331903][ T802] #1: ffffffffa55d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 141.332209][ T802] [ 141.332209][ T802] stack backtrace: [ 141.332387][ T802] CPU: 1 UID: 0 PID: 802 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 141.332614][ T802] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 141.332798][ T802] Call Trace: [ 141.332912][ T802] [ 141.332991][ T802] dump_stack_lvl+0x82/0xd0 [ 141.333148][ T802] print_deadlock_bug+0x40a/0x650 [ 141.333295][ T802] validate_chain+0x5bf/0xae0 [ 141.333445][ T802] ? __pfx_validate_chain+0x10/0x10 [ 141.333603][ T802] ? hlock_class+0x4e/0x130 [ 141.333755][ T802] ? mark_lock+0x38/0x3e0 [ 141.333866][ T802] __lock_acquire+0xb9a/0x1680 [ 141.334014][ T802] lock_acquire.part.0+0xeb/0x330 [ 141.334161][ T802] ? blocking_notifier_call_chain+0x50/0x90 [ 141.334351][ T802] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 141.334537][ T802] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 141.334683][ T802] ? trace_lock_acquire+0x14c/0x1f0 [ 141.334829][ T802] ? lock_acquire+0x32/0xc0 [ 141.334976][ T802] ? blocking_notifier_call_chain+0x50/0x90 [ 141.335161][ T802] down_read+0x9f/0x340 [ 141.335282][ T802] ? blocking_notifier_call_chain+0x50/0x90 [ 141.335475][ T802] ? __pfx_down_read+0x10/0x10 [ 141.335620][ T802] ? __lock_release+0x103/0x460 [ 141.335763][ T802] ? netconsole_netdev_event+0x2c1/0x620 [ 141.335914][ T802] ? __pfx___lock_release+0x10/0x10 [ 141.336062][ T802] blocking_notifier_call_chain+0x50/0x90 [ 141.336208][ T802] __netdev_upper_dev_unlink+0xd9/0x220 [ 141.336355][ T802] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 141.336533][ T802] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 141.336681][ T802] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 141.336868][ T802] ? rtnl_is_locked+0x15/0x20 [ 141.337017][ T802] netdev_upper_dev_unlink+0x71/0xa0 [ 141.337164][ T802] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 141.337359][ T802] ? netconsole_netdev_event+0x2c1/0x620 [ 141.337504][ T802] ? mutex_is_locked+0x1c/0x60 [ 141.337652][ T802] ? rtnl_is_locked+0x15/0x20 [ 141.337797][ T802] ? netdev_master_upper_dev_get+0x13/0x120 [ 141.337982][ T802] vrf_device_event+0x78/0xe0 [vrf] [ 141.338143][ T802] notifier_call_chain+0xcd/0x150 [ 141.338303][ T802] blocking_notifier_call_chain+0x66/0x90 [ 141.338461][ T802] unregister_netdevice_many_notify+0xa7b/0x1580 [ 141.338659][ T802] ? hlock_class+0x4e/0x130 [ 141.338816][ T802] ? mark_lock+0x38/0x3e0 [ 141.338936][ T802] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 141.339129][ T802] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 141.339314][ T802] ? kfree+0xf3/0x330 [ 141.339435][ T802] ? vlan_vid_del+0x310/0x5e0 [ 141.339585][ T802] ? vlan_vid_del+0x310/0x5e0 [ 141.339731][ T802] rtnl_dellink+0x348/0xa40 [ 141.339878][ T802] ? __pfx_rtnl_dellink+0x10/0x10 [ 141.340038][ T802] ? find_held_lock+0x2c/0x110 [ 141.340189][ T802] ? __lock_release+0x103/0x460 [ 141.340341][ T802] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 141.340485][ T802] ? __pfx___lock_release+0x10/0x10 [ 141.340631][ T802] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 141.340778][ T802] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 141.340925][ T802] ? __pfx_rtnl_dellink+0x10/0x10 [ 141.341074][ T802] rtnetlink_rcv_msg+0x712/0xc10 [ 141.341219][ T802] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 141.341370][ T802] ? hlock_class+0x4e/0x130 [ 141.341518][ T802] ? mark_lock+0x38/0x3e0 [ 141.341631][ T802] ? __lock_acquire+0xb9a/0x1680 [ 141.341776][ T802] netlink_rcv_skb+0x130/0x360 [ 141.341922][ T802] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 141.342070][ T802] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 141.342218][ T802] ? netlink_deliver_tap+0x13e/0x340 [ 141.342372][ T802] ? netlink_deliver_tap+0xc3/0x340 [ 141.342519][ T802] netlink_unicast+0x44b/0x710 [ 141.342665][ T802] ? __pfx_netlink_unicast+0x10/0x10 [ 141.342812][ T802] ? find_held_lock+0x2c/0x110 [ 141.342960][ T802] netlink_sendmsg+0x723/0xbe0 [ 141.343108][ T802] ? __pfx_netlink_sendmsg+0x10/0x10 [ 141.343256][ T802] ____sys_sendmsg+0x7ac/0xa10 [ 141.343407][ T802] ? __pfx_____sys_sendmsg+0x10/0x10 [ 141.343552][ T802] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 141.343737][ T802] ___sys_sendmsg+0xee/0x170 [ 141.343885][ T802] ? __pfx____sys_sendmsg+0x10/0x10 [ 141.344033][ T802] ? kasan_save_stack+0x34/0x50 [ 141.344200][ T802] ? kasan_save_stack+0x24/0x50 [ 141.344346][ T802] ? __kasan_record_aux_stack+0x8e/0xa0 [ 141.344499][ T802] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 141.344683][ T802] ? __x64_sys_close+0x7c/0xd0 [ 141.344830][ T802] ? do_syscall_64+0xc1/0x1d0 [ 141.344979][ T802] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 141.345170][ T802] ? __lock_acquire+0xb9a/0x1680 [ 141.345318][ T802] ? find_held_lock+0x2c/0x110 [ 141.345466][ T802] ? __lock_release+0x103/0x460 [ 141.345612][ T802] ? __virt_addr_valid+0x22b/0x430 [ 141.345767][ T802] ? __pfx___lock_release+0x10/0x10 [ 141.345913][ T802] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 141.346063][ T802] __sys_sendmsg+0x109/0x1a0 [ 141.346214][ T802] ? __pfx___sys_sendmsg+0x10/0x10 [ 141.346360][ T802] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 141.346547][ T802] do_syscall_64+0xc1/0x1d0 [ 141.346698][ T802] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 141.346883][ T802] RIP: 0033:0x7f328b18e9a7 [ 141.347049][ T802] 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 [ 141.347618][ T802] RSP: 002b:00007ffe38b1ec28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 141.347865][ T802] RAX: ffffffffffffffda RBX: 00007ffe38b1f350 RCX: 00007f328b18e9a7 [ 141.348106][ T802] RDX: 0000000000000000 RSI: 00007ffe38b1ec90 RDI: 0000000000000005 [ 141.348345][ T802] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 141.348583][ T802] R10: 00007f328b04cef8 R11: 0000000000000246 R12: 0000000000000002 [ 141.348831][ T802] R13: 00000000677952a2 R14: 0000000000498600 R15: 0000000000000000 [ 141.349074][ T802]