[ 13.530842][ T306] 8021q: 802.1Q VLAN Support v1.8 [ 16.774257][ T376] GACT probability NOT on [ 18.046745][ T412] br10: port 1(veth1.10) entered blocking state [ 18.047281][ T412] br10: port 1(veth1.10) entered disabled state [ 18.047783][ T412] veth1.10: entered allmulticast mode [ 18.048009][ T412] veth1: entered allmulticast mode [ 18.050105][ T412] veth1.10: entered promiscuous mode [ 18.050674][ T412] veth1: entered promiscuous mode [ 18.565428][ T429] br11: port 1(veth1.11) entered blocking state [ 18.565726][ T429] br11: port 1(veth1.11) entered disabled state [ 18.566009][ T429] veth1.11: entered allmulticast mode [ 18.568993][ T429] veth1.11: entered promiscuous mode [ 19.437578][ T459] br10: port 2(veth2.10) entered blocking state [ 19.437884][ T459] br10: port 2(veth2.10) entered disabled state [ 19.438191][ T459] veth2.10: entered allmulticast mode [ 19.438898][ T459] veth2: entered allmulticast mode [ 19.440879][ T459] veth2.10: entered promiscuous mode [ 19.441089][ T459] veth2: entered promiscuous mode [ 19.951301][ T476] br11: port 2(veth2.11) entered blocking state [ 19.951815][ T476] br11: port 2(veth2.11) entered disabled state [ 19.952280][ T476] veth2.11: entered allmulticast mode [ 19.955211][ T476] veth2.11: entered promiscuous mode [ 20.406204][ T488] br10: port 2(veth2.10) entered blocking state [ 20.406701][ T488] br10: port 2(veth2.10) entered forwarding state [ 20.407842][ T488] br10: port 1(veth1.10) entered blocking state [ 20.408289][ T488] br10: port 1(veth1.10) entered forwarding state [ 20.540203][ T493] br11: port 2(veth2.11) entered blocking state [ 20.540578][ T493] br11: port 2(veth2.11) entered forwarding state [ 20.541485][ T493] br11: port 1(veth1.11) entered blocking state [ 20.541830][ T493] br11: port 1(veth1.11) entered forwarding state [ 101.242907][ T836] br11: port 2(veth2.11) entered disabled state [ 101.243721][ T836] br11: port 1(veth1.11) entered disabled state [ 101.335051][ T838] br10: port 2(veth2.10) entered disabled state [ 101.336022][ T838] br10: port 1(veth1.10) entered disabled state [ 101.526985][ T842] veth2.11: left allmulticast mode [ 101.527280][ T842] veth2.11: left promiscuous mode [ 101.527939][ T842] br11: port 2(veth2.11) entered disabled state [ 101.729795][ T846] veth2: left allmulticast mode [ 101.730097][ T846] veth2: left promiscuous mode [ 101.825617][ T850] veth2.10: left allmulticast mode [ 101.825868][ T850] veth2.10: left promiscuous mode [ 101.826215][ T850] br10: port 2(veth2.10) entered disabled state [ 102.359089][ T860] veth1.11: left allmulticast mode [ 102.359495][ T860] veth1.11: left promiscuous mode [ 102.360050][ T860] br11: port 1(veth1.11) entered disabled state [ 102.648288][ T864] veth1: left allmulticast mode [ 102.648549][ T864] veth1: left promiscuous mode [ 102.743577][ T866] veth1.10: left allmulticast mode [ 102.743804][ T866] veth1.10: left promiscuous mode [ 102.744134][ T866] br10: port 1(veth1.10) entered disabled state [ 103.599285][ T881] [ 103.599486][ T881] ============================================ [ 103.599685][ T881] WARNING: possible recursive locking detected [ 103.599867][ T881] 6.13.0-rc5-virtme #1 Not tainted [ 103.600014][ T881] -------------------------------------------- [ 103.600190][ T881] ip/881 is trying to acquire lock: [ 103.600335][ T881] ffffffffa99d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 103.600639][ T881] [ 103.600639][ T881] but task is already holding lock: [ 103.600851][ T881] ffffffffa99d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 103.601169][ T881] [ 103.601169][ T881] other info that might help us debug this: [ 103.601384][ T881] Possible unsafe locking scenario: [ 103.601384][ T881] [ 103.601594][ T881] CPU0 [ 103.601704][ T881] ---- [ 103.601815][ T881] lock((netdev_chain).rwsem); [ 103.601962][ T881] lock((netdev_chain).rwsem); [ 103.602123][ T881] [ 103.602123][ T881] *** DEADLOCK *** [ 103.602123][ T881] [ 103.602335][ T881] May be due to missing lock nesting notation [ 103.602335][ T881] [ 103.602555][ T881] 2 locks held by ip/881: [ 103.602667][ T881] #0: ffffffffa99e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 103.602932][ T881] #1: ffffffffa99d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 103.603226][ T881] [ 103.603226][ T881] stack backtrace: [ 103.603420][ T881] CPU: 3 UID: 0 PID: 881 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 103.603649][ T881] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 103.603845][ T881] Call Trace: [ 103.603957][ T881] [ 103.604034][ T881] dump_stack_lvl+0x82/0xd0 [ 103.604186][ T881] print_deadlock_bug+0x40a/0x650 [ 103.604334][ T881] validate_chain+0x5bf/0xae0 [ 103.604496][ T881] ? __pfx_validate_chain+0x10/0x10 [ 103.604653][ T881] ? hlock_class+0x4e/0x130 [ 103.604799][ T881] ? mark_lock+0x38/0x3e0 [ 103.604922][ T881] __lock_acquire+0xb9a/0x1680 [ 103.605075][ T881] lock_acquire.part.0+0xeb/0x330 [ 103.605230][ T881] ? blocking_notifier_call_chain+0x50/0x90 [ 103.605419][ T881] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 103.605602][ T881] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.605760][ T881] ? trace_lock_acquire+0x14c/0x1f0 [ 103.605906][ T881] ? lock_acquire+0x32/0xc0 [ 103.606057][ T881] ? blocking_notifier_call_chain+0x50/0x90 [ 103.606251][ T881] down_read+0x9f/0x340 [ 103.606364][ T881] ? blocking_notifier_call_chain+0x50/0x90 [ 103.606553][ T881] ? __pfx_down_read+0x10/0x10 [ 103.606708][ T881] ? __lock_release+0x103/0x460 [ 103.606853][ T881] ? netconsole_netdev_event+0x2c1/0x620 [ 103.607008][ T881] ? __pfx___lock_release+0x10/0x10 [ 103.607154][ T881] blocking_notifier_call_chain+0x50/0x90 [ 103.607303][ T881] __netdev_upper_dev_unlink+0xd9/0x220 [ 103.607458][ T881] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 103.607641][ T881] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 103.607787][ T881] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 103.607979][ T881] ? rtnl_is_locked+0x15/0x20 [ 103.608127][ T881] netdev_upper_dev_unlink+0x71/0xa0 [ 103.608275][ T881] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 103.608454][ T881] ? netconsole_netdev_event+0x2c1/0x620 [ 103.608607][ T881] ? mutex_is_locked+0x1c/0x60 [ 103.608753][ T881] ? rtnl_is_locked+0x15/0x20 [ 103.608898][ T881] ? netdev_master_upper_dev_get+0x13/0x120 [ 103.609081][ T881] vrf_device_event+0x78/0xe0 [vrf] [ 103.609236][ T881] notifier_call_chain+0xcd/0x150 [ 103.609388][ T881] blocking_notifier_call_chain+0x66/0x90 [ 103.609546][ T881] unregister_netdevice_many_notify+0xa7b/0x1580 [ 103.609727][ T881] ? hlock_class+0x4e/0x130 [ 103.609872][ T881] ? mark_lock+0x38/0x3e0 [ 103.609995][ T881] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 103.610175][ T881] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 103.610358][ T881] ? kfree+0xf3/0x330 [ 103.610477][ T881] ? vlan_vid_del+0x310/0x5e0 [ 103.610636][ T881] ? vlan_vid_del+0x310/0x5e0 [ 103.610782][ T881] rtnl_dellink+0x348/0xa40 [ 103.610938][ T881] ? __pfx_rtnl_dellink+0x10/0x10 [ 103.611098][ T881] ? find_held_lock+0x2c/0x110 [ 103.611258][ T881] ? __lock_release+0x103/0x460 [ 103.611412][ T881] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 103.611558][ T881] ? __pfx___lock_release+0x10/0x10 [ 103.611720][ T881] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.611868][ T881] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 103.612021][ T881] ? __pfx_rtnl_dellink+0x10/0x10 [ 103.612166][ T881] rtnetlink_rcv_msg+0x712/0xc10 [ 103.612321][ T881] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 103.612477][ T881] ? hlock_class+0x4e/0x130 [ 103.612624][ T881] ? mark_lock+0x38/0x3e0 [ 103.612752][ T881] ? __lock_acquire+0xb9a/0x1680 [ 103.612898][ T881] netlink_rcv_skb+0x130/0x360 [ 103.613044][ T881] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 103.613196][ T881] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 103.613345][ T881] ? netlink_deliver_tap+0x13e/0x340 [ 103.613503][ T881] ? netlink_deliver_tap+0xc3/0x340 [ 103.613649][ T881] netlink_unicast+0x44b/0x710 [ 103.613814][ T881] ? __pfx_netlink_unicast+0x10/0x10 [ 103.613968][ T881] ? find_held_lock+0x2c/0x110 [ 103.614118][ T881] netlink_sendmsg+0x723/0xbe0 [ 103.614275][ T881] ? __pfx_netlink_sendmsg+0x10/0x10 [ 103.614423][ T881] ____sys_sendmsg+0x7ac/0xa10 [ 103.614577][ T881] ? __pfx_____sys_sendmsg+0x10/0x10 [ 103.614728][ T881] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 103.614921][ T881] ___sys_sendmsg+0xee/0x170 [ 103.615080][ T881] ? __pfx____sys_sendmsg+0x10/0x10 [ 103.615226][ T881] ? kasan_save_stack+0x34/0x50 [ 103.615388][ T881] ? kasan_save_stack+0x24/0x50 [ 103.615546][ T881] ? __kasan_record_aux_stack+0x8e/0xa0 [ 103.615693][ T881] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 103.615886][ T881] ? __x64_sys_close+0x7c/0xd0 [ 103.616048][ T881] ? do_syscall_64+0xc1/0x1d0 [ 103.616194][ T881] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 103.616389][ T881] ? __lock_acquire+0xb9a/0x1680 [ 103.616545][ T881] ? find_held_lock+0x2c/0x110 [ 103.616694][ T881] ? __lock_release+0x103/0x460 [ 103.616839][ T881] ? __virt_addr_valid+0x22b/0x430 [ 103.617018][ T881] ? __pfx___lock_release+0x10/0x10 [ 103.617182][ T881] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.617332][ T881] __sys_sendmsg+0x109/0x1a0 [ 103.617477][ T881] ? __pfx___sys_sendmsg+0x10/0x10 [ 103.617632][ T881] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 103.617827][ T881] do_syscall_64+0xc1/0x1d0 [ 103.617973][ T881] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 103.618162][ T881] RIP: 0033:0x7f595f7ca9a7 [ 103.618335][ T881] 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 [ 103.618856][ T881] RSP: 002b:00007ffc4ab12b68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 103.619088][ T881] RAX: ffffffffffffffda RBX: 00007ffc4ab13290 RCX: 00007f595f7ca9a7 [ 103.619322][ T881] RDX: 0000000000000000 RSI: 00007ffc4ab12bd0 RDI: 0000000000000005 [ 103.619565][ T881] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 103.619799][ T881] R10: 00007f595f688ef8 R11: 0000000000000246 R12: 0000000000000002 [ 103.620027][ T881] R13: 0000000067790344 R14: 0000000000498600 R15: 0000000000000000 [ 103.620264][ T881]