[ 13.200903][ T307] 8021q: 802.1Q VLAN Support v1.8 [ 16.327834][ T377] GACT probability NOT on [ 17.625192][ T414] br10: port 1(veth1.10) entered blocking state [ 17.625675][ T414] br10: port 1(veth1.10) entered disabled state [ 17.626082][ T414] veth1.10: entered allmulticast mode [ 17.626274][ T414] veth1: entered allmulticast mode [ 17.628310][ T414] veth1.10: entered promiscuous mode [ 17.628570][ T414] veth1: entered promiscuous mode [ 18.128439][ T431] br11: port 1(veth1.11) entered blocking state [ 18.128828][ T431] br11: port 1(veth1.11) entered disabled state [ 18.129142][ T431] veth1.11: entered allmulticast mode [ 18.131626][ T431] veth1.11: entered promiscuous mode [ 18.701290][ T454] ip (454) used greatest stack depth: 23976 bytes left [ 18.896143][ T461] br10: port 2(veth2.10) entered blocking state [ 18.896462][ T461] br10: port 2(veth2.10) entered disabled state [ 18.896756][ T461] veth2.10: entered allmulticast mode [ 18.896934][ T461] veth2: entered allmulticast mode [ 18.899122][ T461] veth2.10: entered promiscuous mode [ 18.899319][ T461] veth2: entered promiscuous mode [ 19.346239][ T478] br11: port 2(veth2.11) entered blocking state [ 19.347034][ T478] br11: port 2(veth2.11) entered disabled state [ 19.347318][ T478] veth2.11: entered allmulticast mode [ 19.349351][ T478] veth2.11: entered promiscuous mode [ 19.762435][ T490] br10: port 2(veth2.10) entered blocking state [ 19.762904][ T490] br10: port 2(veth2.10) entered forwarding state [ 19.763585][ T490] br10: port 1(veth1.10) entered blocking state [ 19.763840][ T490] br10: port 1(veth1.10) entered forwarding state [ 19.872459][ T495] br11: port 2(veth2.11) entered blocking state [ 19.872763][ T495] br11: port 2(veth2.11) entered forwarding state [ 19.873216][ T495] br11: port 1(veth1.11) entered blocking state [ 19.873477][ T495] br11: port 1(veth1.11) entered forwarding state [ 101.099725][ T838] br11: port 2(veth2.11) entered disabled state [ 101.100970][ T838] br11: port 1(veth1.11) entered disabled state [ 101.111353][ T838] ip (838) used greatest stack depth: 23648 bytes left [ 101.198725][ T840] br10: port 2(veth2.10) entered disabled state [ 101.199563][ T840] br10: port 1(veth1.10) entered disabled state [ 101.433189][ T844] veth2.11: left allmulticast mode [ 101.433917][ T844] veth2.11: left promiscuous mode [ 101.434311][ T844] br11: port 2(veth2.11) entered disabled state [ 101.653675][ T848] veth2: left allmulticast mode [ 101.653955][ T848] veth2: left promiscuous mode [ 101.745042][ T852] veth2.10: left allmulticast mode [ 101.745319][ T852] veth2.10: left promiscuous mode [ 101.746218][ T852] br10: port 2(veth2.10) entered disabled state [ 102.300562][ T862] veth1.11: left allmulticast mode [ 102.300795][ T862] veth1.11: left promiscuous mode [ 102.301111][ T862] br11: port 1(veth1.11) entered disabled state [ 102.516705][ T866] veth1: left allmulticast mode [ 102.516988][ T866] veth1: left promiscuous mode [ 102.607537][ T868] veth1.10: left allmulticast mode [ 102.607785][ T868] veth1.10: left promiscuous mode [ 102.608124][ T868] br10: port 1(veth1.10) entered disabled state [ 103.514338][ T882] [ 103.514484][ T882] ============================================ [ 103.514817][ T882] WARNING: possible recursive locking detected [ 103.515002][ T882] 6.13.0-rc5-virtme #1 Not tainted [ 103.515147][ T882] -------------------------------------------- [ 103.515331][ T882] ip/882 is trying to acquire lock: [ 103.515479][ T882] ffffffff86bd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 103.515799][ T882] [ 103.515799][ T882] but task is already holding lock: [ 103.516017][ T882] ffffffff86bd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 103.516318][ T882] [ 103.516318][ T882] other info that might help us debug this: [ 103.516545][ T882] Possible unsafe locking scenario: [ 103.516545][ T882] [ 103.516770][ T882] CPU0 [ 103.516883][ T882] ---- [ 103.516996][ T882] lock((netdev_chain).rwsem); [ 103.517144][ T882] lock((netdev_chain).rwsem); [ 103.517291][ T882] [ 103.517291][ T882] *** DEADLOCK *** [ 103.517291][ T882] [ 103.517520][ T882] May be due to missing lock nesting notation [ 103.517520][ T882] [ 103.517733][ T882] 2 locks held by ip/882: [ 103.517846][ T882] #0: ffffffff86be7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 103.518120][ T882] #1: ffffffff86bd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 103.518415][ T882] [ 103.518415][ T882] stack backtrace: [ 103.518595][ T882] CPU: 3 UID: 0 PID: 882 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 103.518813][ T882] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 103.519002][ T882] Call Trace: [ 103.519117][ T882] [ 103.519217][ T882] dump_stack_lvl+0x82/0xd0 [ 103.519369][ T882] print_deadlock_bug+0x40a/0x650 [ 103.519518][ T882] validate_chain+0x5bf/0xae0 [ 103.519667][ T882] ? __pfx_validate_chain+0x10/0x10 [ 103.519820][ T882] ? hlock_class+0x4e/0x130 [ 103.519965][ T882] ? mark_lock+0x38/0x3e0 [ 103.520083][ T882] __lock_acquire+0xb9a/0x1680 [ 103.520230][ T882] lock_acquire.part.0+0xeb/0x330 [ 103.520377][ T882] ? blocking_notifier_call_chain+0x50/0x90 [ 103.520560][ T882] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 103.520746][ T882] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.520893][ T882] ? trace_lock_acquire+0x14c/0x1f0 [ 103.521040][ T882] ? lock_acquire+0x32/0xc0 [ 103.521196][ T882] ? blocking_notifier_call_chain+0x50/0x90 [ 103.521378][ T882] down_read+0x9f/0x340 [ 103.521492][ T882] ? blocking_notifier_call_chain+0x50/0x90 [ 103.521676][ T882] ? __pfx_down_read+0x10/0x10 [ 103.521821][ T882] ? __lock_release+0x103/0x460 [ 103.521965][ T882] ? netconsole_netdev_event+0x2c1/0x620 [ 103.522111][ T882] ? __pfx___lock_release+0x10/0x10 [ 103.522266][ T882] blocking_notifier_call_chain+0x50/0x90 [ 103.522413][ T882] __netdev_upper_dev_unlink+0xd9/0x220 [ 103.522564][ T882] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 103.522751][ T882] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 103.522899][ T882] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 103.523079][ T882] ? rtnl_is_locked+0x15/0x20 [ 103.523228][ T882] netdev_upper_dev_unlink+0x71/0xa0 [ 103.523383][ T882] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 103.523564][ T882] ? netconsole_netdev_event+0x2c1/0x620 [ 103.523713][ T882] ? mutex_is_locked+0x1c/0x60 [ 103.523864][ T882] ? rtnl_is_locked+0x15/0x20 [ 103.524012][ T882] ? netdev_master_upper_dev_get+0x13/0x120 [ 103.524193][ T882] vrf_device_event+0x78/0xe0 [vrf] [ 103.524348][ T882] notifier_call_chain+0xcd/0x150 [ 103.524498][ T882] blocking_notifier_call_chain+0x66/0x90 [ 103.524646][ T882] unregister_netdevice_many_notify+0xa7b/0x1580 [ 103.524826][ T882] ? hlock_class+0x4e/0x130 [ 103.524971][ T882] ? mark_lock+0x38/0x3e0 [ 103.525083][ T882] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 103.525265][ T882] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 103.525457][ T882] ? kfree+0xf3/0x330 [ 103.525571][ T882] ? vlan_vid_del+0x310/0x5e0 [ 103.525721][ T882] ? vlan_vid_del+0x310/0x5e0 [ 103.525868][ T882] rtnl_dellink+0x348/0xa40 [ 103.526013][ T882] ? __pfx_rtnl_dellink+0x10/0x10 [ 103.526173][ T882] ? find_held_lock+0x2c/0x110 [ 103.526323][ T882] ? __lock_release+0x103/0x460 [ 103.526468][ T882] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 103.526624][ T882] ? __pfx___lock_release+0x10/0x10 [ 103.526770][ T882] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.526918][ T882] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 103.527064][ T882] ? __pfx_rtnl_dellink+0x10/0x10 [ 103.527209][ T882] rtnetlink_rcv_msg+0x712/0xc10 [ 103.527355][ T882] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 103.527504][ T882] ? hlock_class+0x4e/0x130 [ 103.527654][ T882] ? mark_lock+0x38/0x3e0 [ 103.527765][ T882] ? __lock_acquire+0xb9a/0x1680 [ 103.527910][ T882] netlink_rcv_skb+0x130/0x360 [ 103.528058][ T882] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 103.528205][ T882] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 103.528355][ T882] ? netlink_deliver_tap+0x13e/0x340 [ 103.528507][ T882] ? netlink_deliver_tap+0xc3/0x340 [ 103.528662][ T882] netlink_unicast+0x44b/0x710 [ 103.528808][ T882] ? __pfx_netlink_unicast+0x10/0x10 [ 103.528952][ T882] ? find_held_lock+0x2c/0x110 [ 103.529100][ T882] netlink_sendmsg+0x723/0xbe0 [ 103.529259][ T882] ? __pfx_netlink_sendmsg+0x10/0x10 [ 103.529407][ T882] ____sys_sendmsg+0x7ac/0xa10 [ 103.529553][ T882] ? __pfx_____sys_sendmsg+0x10/0x10 [ 103.529703][ T882] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 103.529888][ T882] ___sys_sendmsg+0xee/0x170 [ 103.530036][ T882] ? __pfx____sys_sendmsg+0x10/0x10 [ 103.530183][ T882] ? kasan_save_stack+0x34/0x50 [ 103.530333][ T882] ? kasan_save_stack+0x24/0x50 [ 103.530479][ T882] ? __kasan_record_aux_stack+0x8e/0xa0 [ 103.530626][ T882] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 103.530815][ T882] ? __x64_sys_close+0x7c/0xd0 [ 103.530963][ T882] ? do_syscall_64+0xc1/0x1d0 [ 103.531111][ T882] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 103.531320][ T882] ? __lock_acquire+0xb9a/0x1680 [ 103.531469][ T882] ? find_held_lock+0x2c/0x110 [ 103.531619][ T882] ? __lock_release+0x103/0x460 [ 103.531764][ T882] ? __virt_addr_valid+0x22b/0x430 [ 103.531912][ T882] ? __pfx___lock_release+0x10/0x10 [ 103.532064][ T882] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.532211][ T882] __sys_sendmsg+0x109/0x1a0 [ 103.532357][ T882] ? __pfx___sys_sendmsg+0x10/0x10 [ 103.532505][ T882] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 103.532691][ T882] do_syscall_64+0xc1/0x1d0 [ 103.532837][ T882] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 103.533019][ T882] RIP: 0033:0x7fb7d52e99a7 [ 103.533179][ T882] 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 [ 103.533693][ T882] RSP: 002b:00007ffeaf0f33a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 103.533915][ T882] RAX: ffffffffffffffda RBX: 00007ffeaf0f3ad0 RCX: 00007fb7d52e99a7 [ 103.534140][ T882] RDX: 0000000000000000 RSI: 00007ffeaf0f3410 RDI: 0000000000000005 [ 103.534358][ T882] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 103.534580][ T882] R10: 00007fb7d51a7ef8 R11: 0000000000000246 R12: 0000000000000002 [ 103.534802][ T882] R13: 0000000067795664 R14: 0000000000498600 R15: 0000000000000000 [ 103.535030][ T882]