[ 17.249289][ T293] eth1: renamed from tmp [ 81.059831][ T494] ip (494) used greatest stack depth: 23968 bytes left [ 85.979538][ T547] eth1: renamed from tmp [ 157.240530][ T799] ip (799) used greatest stack depth: 23552 bytes left [ 157.429825][ T801] eth1: renamed from tmp [ 224.631940][ T1054] eth1: renamed from tmp [ 292.280583][ T1315] eth1: renamed from tmp [ 360.039037][ T1578] eth1: renamed from tmp [ 697.599140][ T2429] eth1: renamed from tmp [ 732.214522][ T2567] eth2: renamed from tmp [ 947.895888][ T3139] eth1: renamed from tmp [ 1293.222092][ T4065] eth1: renamed from tmp [ 1427.515620][ T4548] eth1: renamed from tmp [ 1463.200622][ T4713] eth1: renamed from tmp [ 1516.333602][ T4941] eth1: renamed from tmp [ 1532.507511][ T5055] eth1: renamed from tmp [ 1548.937869][ T5169] eth1: renamed from tmp [ 1565.583196][ T5283] eth1: renamed from tmp [ 1582.943455][ T5401] eth1: renamed from tmp [ 1600.422960][ T5519] eth1: renamed from tmp [ 1617.949642][ T5637] eth1: renamed from tmp [ 1635.509801][ T5755] eth1: renamed from tmp [ 1653.626713][ T5873] eth1: renamed from tmp [ 1671.488074][ T5991] eth1: renamed from tmp [ 1689.511877][ T6110] eth1: renamed from tmp [ 1707.199654][ T6228] eth1: renamed from tmp [ 1724.805589][ T6347] eth1: renamed from tmp [ 1742.502362][ T6466] eth1: renamed from tmp [ 1760.061751][ T6585] eth1: renamed from tmp [ 1777.718622][ T6704] eth1: renamed from tmp [ 1795.647911][ T6822] eth1: renamed from tmp [ 1813.756879][ T6940] eth1: renamed from tmp [ 1831.768503][ T7058] eth1: renamed from tmp [ 1849.670525][ T7177] eth1: renamed from tmp [ 1867.258598][ T7295] eth1: renamed from tmp [ 1884.889811][ T7413] eth1: renamed from tmp [ 1902.748841][ T7531] eth1: renamed from tmp [ 1920.522714][ T7649] eth1: renamed from tmp [ 1938.109505][ T7767] eth1: renamed from tmp [ 1955.724728][ T7886] eth1: renamed from tmp [ 1973.135111][ T8004] eth1: renamed from tmp [ 1990.549121][ T8122] eth1: renamed from tmp [ 2007.647637][ T8240] eth1: renamed from tmp [ 2025.018103][ T8358] eth1: renamed from tmp [ 2042.136911][ T8476] eth1: renamed from tmp [ 2059.223599][ T8594] eth1: renamed from tmp [ 2093.950650][ T8778] eth1: renamed from tmp [ 2178.334494][ T9104] eth1: renamed from tmp [ 2263.511754][ T9431] eth1: renamed from tmp [ 2351.582904][ T9769] eth1: renamed from tmp [ 2438.813776][T10107] eth1: renamed from tmp [ 2724.812701][T10891] eth1: renamed from tmp [ 2771.472674][T11073] eth2: renamed from tmp [ 2982.338550][T11663] eth1: renamed from tmp [ 3287.938265][T12700] eth1: renamed from tmp [ 3442.120328][T13258] eth1: renamed from tmp [ 3468.662383][T13402] eth1: renamed from tmp [ 3505.808620][T13587] eth1: renamed from tmp [ 3521.236736][T13701] eth1: renamed from tmp [ 3534.641357][T13816] eth1: renamed from tmp [ 3551.047596][T13934] eth1: renamed from tmp [ 3567.605728][T14052] eth1: renamed from tmp [ 3584.091397][T14170] eth1: renamed from tmp [ 3600.498651][T14288] eth1: renamed from tmp [ 3618.030991][T14406] eth1: renamed from tmp [ 3635.597846][T14524] eth1: renamed from tmp [ 3653.112759][T14641] eth1: renamed from tmp [ 3670.315961][T14758] eth1: renamed from tmp [ 3687.192894][T14877] eth1: renamed from tmp [ 3704.039762][T14996] eth1: renamed from tmp [ 3720.931661][T15114] eth1: renamed from tmp [ 3737.807548][T15232] eth1: renamed from tmp [ 3754.826740][T15350] eth1: renamed from tmp [ 3771.818749][T15468] eth1: renamed from tmp [ 3788.665932][T15586] eth1: renamed from tmp [ 3805.369788][T15704] eth1: renamed from tmp [ 3822.306859][T15822] eth1: renamed from tmp [ 3839.139619][T15941] eth1: renamed from tmp [ 3856.575799][T16059] eth1: renamed from tmp [ 3873.792735][T16178] eth1: renamed from tmp [ 3890.714747][T16296] eth1: renamed from tmp [ 3907.563773][T16413] eth1: renamed from tmp [ 3924.354572][T16530] eth1: renamed from tmp [ 3940.886753][T16648] eth1: renamed from tmp [ 3957.578645][T16766] eth1: renamed from tmp [ 3974.241097][T16884] eth1: renamed from tmp [ 3990.893612][T17002] eth1: renamed from tmp [ 4007.384215][T17120] eth1: renamed from tmp [ 4023.909760][T17239] eth1: renamed from tmp [ 4040.474600][T17358] eth1: renamed from tmp [ 4057.052571][T17476] eth1: renamed from tmp [ 4073.665692][T17594] eth1: renamed from tmp [ 4090.361604][T17712] eth1: renamed from tmp [ 4107.034346][T17830] eth1: renamed from tmp [ 4123.711662][T17948] eth1: renamed from tmp [ 4140.545857][T18066] eth1: renamed from tmp [ 4153.483360][T18126] ip (18126) used greatest stack depth: 23512 bytes left [ 4157.503470][T18183] eth1: renamed from tmp [ 4174.369988][T18300] eth1: renamed from tmp [ 4191.106305][T18418] eth1: renamed from tmp [ 4207.700648][T18537] eth1: renamed from tmp [ 4224.326716][T18656] eth1: renamed from tmp [ 4241.221473][T18774] eth1: renamed from tmp [ 4257.948873][T18892] eth1: renamed from tmp [ 4274.726537][T19010] eth1: renamed from tmp [ 4291.585693][T19128] eth1: renamed from tmp [ 4326.682635][T19309] eth1: renamed from tmp [ 4330.953128][T19356] br0: port 1(eth1) entered blocking state [ 4330.953604][T19356] br0: port 1(eth1) entered disabled state [ 4330.953846][T19356] eth1: entered allmulticast mode [ 4330.955094][T19356] eth1: entered promiscuous mode [ 4331.265582][T19360] br0: port 1(eth1) entered blocking state [ 4331.266062][T19360] br0: port 1(eth1) entered forwarding state [ 4331.431295][T19362] br0: port 1(eth1) entered disabled state [ 4331.432844][T19362] br0: port 1(eth1) entered blocking state [ 4331.433292][T19362] br0: port 1(eth1) entered forwarding state [ 4342.480719][T19391] br0: port 1(eth1) entered disabled state [ 4342.482992][T19391] br0: port 1(eth1) entered blocking state [ 4342.483282][T19391] br0: port 1(eth1) entered forwarding state [ 4350.781298][T19436] eth1: left allmulticast mode [ 4350.781557][T19436] eth1: left promiscuous mode [ 4350.781892][T19436] br0: port 1(eth1) entered disabled state [ 4350.789027][T19436] [ 4350.789125][T19436] ============================================ [ 4350.789312][T19436] WARNING: possible recursive locking detected [ 4350.789493][T19436] 6.13.0-rc5-virtme #1 Not tainted [ 4350.789637][T19436] -------------------------------------------- [ 4350.789813][T19436] ip/19436 is trying to acquire lock: [ 4350.789956][T19436] ffffffffafff6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 4350.790262][T19436] [ 4350.790262][T19436] but task is already holding lock: [ 4350.790469][T19436] ffffffffafff6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 4350.790758][T19436] [ 4350.790758][T19436] other info that might help us debug this: [ 4350.790971][T19436] Possible unsafe locking scenario: [ 4350.790971][T19436] [ 4350.791181][T19436] CPU0 [ 4350.791294][T19436] ---- [ 4350.791402][T19436] lock((netdev_chain).rwsem); [ 4350.791548][T19436] lock((netdev_chain).rwsem); [ 4350.791693][T19436] [ 4350.791693][T19436] *** DEADLOCK *** [ 4350.791693][T19436] [ 4350.791916][T19436] May be due to missing lock nesting notation [ 4350.791916][T19436] [ 4350.792134][T19436] 2 locks held by ip/19436: [ 4350.792280][T19436] #0: ffffffffb0007e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 4350.792547][T19436] #1: ffffffffafff6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 4350.792839][T19436] [ 4350.792839][T19436] stack backtrace: [ 4350.793024][T19436] CPU: 2 UID: 0 PID: 19436 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 4350.793245][T19436] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4350.793427][T19436] Call Trace: [ 4350.793546][T19436] [ 4350.793623][T19436] dump_stack_lvl+0x82/0xd0 [ 4350.793773][T19436] print_deadlock_bug+0x40a/0x650 [ 4350.793919][T19436] validate_chain+0x5bf/0xae0 [ 4350.794070][T19436] ? __pfx_validate_chain+0x10/0x10 [ 4350.794222][T19436] ? hlock_class+0x4e/0x130 [ 4350.794366][T19436] ? mark_lock+0x38/0x3e0 [ 4350.794476][T19436] __lock_acquire+0xb9a/0x1680 [ 4350.794624][T19436] ? spin_bug+0x191/0x1d0 [ 4350.794735][T19436] ? debug_object_assert_init+0x2a9/0x370 [ 4350.794883][T19436] lock_acquire.part.0+0xeb/0x330 [ 4350.795028][T19436] ? blocking_notifier_call_chain+0x50/0x90 [ 4350.795208][T19436] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4350.795355][T19436] ? trace_lock_acquire+0x14c/0x1f0 [ 4350.795500][T19436] ? lock_acquire+0x32/0xc0 [ 4350.795648][T19436] ? blocking_notifier_call_chain+0x50/0x90 [ 4350.795826][T19436] down_read+0x9f/0x340 [ 4350.795937][T19436] ? blocking_notifier_call_chain+0x50/0x90 [ 4350.796117][T19436] ? __pfx_down_read+0x10/0x10 [ 4350.796262][T19436] blocking_notifier_call_chain+0x50/0x90 [ 4350.796406][T19436] __dev_close_many+0xdf/0x2d0 [ 4350.796553][T19436] ? __pfx___dev_close_many+0x10/0x10 [ 4350.796702][T19436] dev_close_many+0x202/0x650 [ 4350.796848][T19436] ? __pfx_dev_close_many+0x10/0x10 [ 4350.796992][T19436] ? ipv6_mc_down+0x1d8/0x3a0 [ 4350.797140][T19436] vlan_device_event+0x143b/0x2130 [ 4350.797288][T19436] ? __pfx_vlan_device_event+0x10/0x10 [ 4350.797431][T19436] ? __pfx_br_device_event+0x10/0x10 [ 4350.797580][T19436] ? packet_notifier+0x3b0/0x810 [ 4350.797728][T19436] notifier_call_chain+0xcd/0x150 [ 4350.797874][T19436] blocking_notifier_call_chain+0x66/0x90 [ 4350.798017][T19436] dev_close_many+0x2d8/0x650 [ 4350.798159][T19436] ? find_held_lock+0x2c/0x110 [ 4350.798303][T19436] ? __pfx_dev_close_many+0x10/0x10 [ 4350.798448][T19436] ? __lock_release+0x103/0x460 [ 4350.798591][T19436] ? __pfx___lock_release+0x10/0x10 [ 4350.798736][T19436] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4350.798883][T19436] unregister_netdevice_many_notify+0x8ed/0x1580 [ 4350.799061][T19436] ? hlock_class+0x4e/0x130 [ 4350.799205][T19436] ? mark_lock+0x38/0x3e0 [ 4350.799315][T19436] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 4350.799494][T19436] ? __pfx_kernfs_free_rcu+0x10/0x10 [ 4350.799639][T19436] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4350.799822][T19436] ? mutex_is_locked+0x1c/0x60 [ 4350.799968][T19436] ? rtnl_is_locked+0x15/0x20 [ 4350.800112][T19436] ? unregister_netdevice_queue+0x70/0x410 [ 4350.800289][T19436] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 4350.800466][T19436] ? br_dev_delete+0x10d/0x190 [ 4350.800612][T19436] rtnl_dellink+0x348/0xa40 [ 4350.800758][T19436] ? __pfx_rtnl_dellink+0x10/0x10 [ 4350.800922][T19436] ? find_held_lock+0x2c/0x110 [ 4350.801065][T19436] ? __lock_release+0x103/0x460 [ 4350.801209][T19436] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 4350.801352][T19436] ? __pfx___lock_release+0x10/0x10 [ 4350.801494][T19436] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4350.801642][T19436] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 4350.801788][T19436] ? __pfx_rtnl_dellink+0x10/0x10 [ 4350.801941][T19436] rtnetlink_rcv_msg+0x712/0xc10 [ 4350.802085][T19436] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 4350.802232][T19436] ? hlock_class+0x4e/0x130 [ 4350.802375][T19436] ? mark_lock+0x38/0x3e0 [ 4350.802487][T19436] ? __lock_acquire+0xb9a/0x1680 [ 4350.802634][T19436] netlink_rcv_skb+0x130/0x360 [ 4350.802781][T19436] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 4350.802930][T19436] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4350.803082][T19436] ? netlink_deliver_tap+0x13e/0x340 [ 4350.803228][T19436] ? netlink_deliver_tap+0xc3/0x340 [ 4350.803372][T19436] netlink_unicast+0x44b/0x710 [ 4350.803518][T19436] ? __pfx_netlink_unicast+0x10/0x10 [ 4350.803752][T19436] ? find_held_lock+0x2c/0x110 [ 4350.803899][T19436] netlink_sendmsg+0x723/0xbe0 [ 4350.804043][T19436] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4350.804196][T19436] ____sys_sendmsg+0x7ac/0xa10 [ 4350.804425][T19436] ? __pfx_____sys_sendmsg+0x10/0x10 [ 4350.804568][T19436] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 4350.804750][T19436] ___sys_sendmsg+0xee/0x170 [ 4350.804893][T19436] ? __pfx____sys_sendmsg+0x10/0x10 [ 4350.805121][T19436] ? kasan_save_stack+0x34/0x50 [ 4350.805267][T19436] ? kasan_save_stack+0x24/0x50 [ 4350.805413][T19436] ? __kasan_record_aux_stack+0x8e/0xa0 [ 4350.805567][T19436] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 4350.805833][T19436] ? __x64_sys_close+0x7c/0xd0 [ 4350.805983][T19436] ? do_syscall_64+0xc1/0x1d0 [ 4350.806130][T19436] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4350.806309][T19436] ? __lock_acquire+0xb9a/0x1680 [ 4350.806537][T19436] ? find_held_lock+0x2c/0x110 [ 4350.806685][T19436] ? __lock_release+0x103/0x460 [ 4350.806831][T19436] ? __virt_addr_valid+0x22b/0x430 [ 4350.806978][T19436] ? __pfx___lock_release+0x10/0x10 [ 4350.807206][T19436] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4350.807350][T19436] __sys_sendmsg+0x109/0x1a0 [ 4350.807494][T19436] ? __pfx___sys_sendmsg+0x10/0x10 [ 4350.807637][T19436] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 4350.807911][T19436] do_syscall_64+0xc1/0x1d0 [ 4350.808054][T19436] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4350.808229][T19436] RIP: 0033:0x7f9cd3c0d9a7 [ 4350.808468][T19436] 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 [ 4350.808974][T19436] RSP: 002b:00007ffcc1270a28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 4350.809279][T19436] RAX: ffffffffffffffda RBX: 00007ffcc1271150 RCX: 00007f9cd3c0d9a7 [ 4350.809495][T19436] RDX: 0000000000000000 RSI: 00007ffcc1270a90 RDI: 0000000000000005 [ 4350.809796][T19436] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 4350.810008][T19436] R10: 00007f9cd3acbef8 R11: 0000000000000246 R12: 0000000000000001 [ 4350.810231][T19436] R13: 0000000067790cd0 R14: 0000000000498600 R15: 0000000000000000 [ 4350.810533][T19436] [ 4350.917736][T19436] ip (19436) used greatest stack depth: 23280 bytes left [ 4356.006778][T19514] eth1: renamed from tmp [ 4356.254802][T19518] eth2: renamed from tmp [ 4375.992925][T19661] eth1: renamed from tmp