[ 14.502607][ T302] 8021q: 802.1Q VLAN Support v1.8 [ 16.336068][ T322] ip (322) used greatest stack depth: 24048 bytes left [ 18.703334][ T351] br1: port 1(vx10) entered blocking state [ 18.703868][ T351] br1: port 1(vx10) entered disabled state [ 18.704367][ T351] vx10: entered allmulticast mode [ 18.707032][ T351] vx10: entered promiscuous mode [ 18.708089][ T351] br1: port 1(vx10) entered blocking state [ 18.708483][ T351] br1: port 1(vx10) entered forwarding state [ 19.125511][ T356] br1: port 2(vx20) entered blocking state [ 19.125812][ T356] br1: port 2(vx20) entered disabled state [ 19.126553][ T356] vx20: entered allmulticast mode [ 19.128549][ T356] vx20: entered promiscuous mode [ 19.129790][ T356] br1: port 2(vx20) entered blocking state [ 19.130072][ T356] br1: port 2(vx20) entered forwarding state [ 19.291585][ T358] br1: port 3(veth1) entered blocking state [ 19.291896][ T358] br1: port 3(veth1) entered disabled state [ 19.292204][ T358] veth1: entered allmulticast mode [ 19.294344][ T358] veth1: entered promiscuous mode [ 19.376203][ T39] br1: port 3(veth1) entered blocking state [ 19.376691][ T39] br1: port 3(veth1) entered forwarding state [ 19.785423][ T363] br1: port 4(veth2) entered blocking state [ 19.785819][ T363] br1: port 4(veth2) entered disabled state [ 19.786235][ T363] veth2: entered allmulticast mode [ 19.796921][ T363] veth2: entered promiscuous mode [ 19.896850][ T39] br1: port 4(veth2) entered blocking state [ 19.897200][ T39] br1: port 4(veth2) entered forwarding state [ 23.835268][ T413] br2: port 1(w1) entered blocking state [ 23.835628][ T413] br2: port 1(w1) entered disabled state [ 23.835999][ T413] w1: entered allmulticast mode [ 23.838701][ T413] w1: entered promiscuous mode [ 24.524112][ T421] br2: port 2(vx10) entered blocking state [ 24.524721][ T421] br2: port 2(vx10) entered disabled state [ 24.525031][ T421] vx10: entered allmulticast mode [ 24.527037][ T421] vx10: entered promiscuous mode [ 24.527602][ T421] br2: port 2(vx10) entered blocking state [ 24.527870][ T421] br2: port 2(vx10) entered forwarding state [ 25.178841][ T428] br2: port 3(vx20) entered blocking state [ 25.179651][ T428] br2: port 3(vx20) entered disabled state [ 25.179968][ T428] vx20: entered allmulticast mode [ 25.181928][ T428] vx20: entered promiscuous mode [ 25.182493][ T428] br2: port 3(vx20) entered blocking state [ 25.182761][ T428] br2: port 3(vx20) entered forwarding state [ 25.920584][ T39] br2: port 1(w1) entered blocking state [ 25.921233][ T39] br2: port 1(w1) entered forwarding state [ 28.493188][ T470] br2: port 1(w1) entered blocking state [ 28.493541][ T470] br2: port 1(w1) entered disabled state [ 28.494527][ T470] w1: entered allmulticast mode [ 28.496853][ T470] w1: entered promiscuous mode [ 29.200310][ T478] br2: port 2(vx10) entered blocking state [ 29.200655][ T478] br2: port 2(vx10) entered disabled state [ 29.200956][ T478] vx10: entered allmulticast mode [ 29.202924][ T478] vx10: entered promiscuous mode [ 29.203589][ T478] br2: port 2(vx10) entered blocking state [ 29.203880][ T478] br2: port 2(vx10) entered forwarding state [ 29.876353][ T485] br2: port 3(vx20) entered blocking state [ 29.876738][ T485] br2: port 3(vx20) entered disabled state [ 29.877076][ T485] vx20: entered allmulticast mode [ 29.879180][ T485] vx20: entered promiscuous mode [ 29.879799][ T485] br2: port 3(vx20) entered blocking state [ 29.880090][ T485] br2: port 3(vx20) entered forwarding state [ 30.644573][ T149] br2: port 1(w1) entered blocking state [ 30.644896][ T149] br2: port 1(w1) entered forwarding state [ 42.046874][ T572] GACT probability NOT on [ 135.903070][ T66] vx20: left allmulticast mode [ 135.903514][ T66] vx20: left promiscuous mode [ 135.903894][ T66] br2: port 3(vx20) entered disabled state [ 135.907002][ T66] vx10: left allmulticast mode [ 135.907476][ T66] vx10: left promiscuous mode [ 135.907800][ T66] br2: port 2(vx10) entered disabled state [ 135.909453][ T66] w1: left allmulticast mode [ 135.909707][ T66] w1: left promiscuous mode [ 135.910154][ T66] br2: port 1(w1) entered disabled state [ 136.375366][ T66] vx20: left allmulticast mode [ 136.375696][ T66] vx20: left promiscuous mode [ 136.376020][ T66] br2: port 3(vx20) entered disabled state [ 136.378389][ T66] vx10: left allmulticast mode [ 136.378580][ T66] vx10: left promiscuous mode [ 136.378878][ T66] br2: port 2(vx10) entered disabled state [ 136.380983][ T66] w1: left allmulticast mode [ 136.381461][ T66] w1: left promiscuous mode [ 136.381760][ T66] br2: port 1(w1) entered disabled state [ 138.847494][ T780] br1: port 4(veth2) entered disabled state [ 138.955342][ T781] veth2: left allmulticast mode [ 138.955630][ T781] veth2: left promiscuous mode [ 138.956256][ T781] br1: port 4(veth2) entered disabled state [ 138.964222][ T781] ip (781) used greatest stack depth: 23752 bytes left [ 139.351294][ T785] br1: port 3(veth1) entered disabled state [ 139.429062][ T786] veth1: left allmulticast mode [ 139.429587][ T786] veth1: left promiscuous mode [ 139.429931][ T786] br1: port 3(veth1) entered disabled state [ 139.597781][ T788] vx20: left allmulticast mode [ 139.598038][ T788] vx20: left promiscuous mode [ 139.598708][ T788] br1: port 2(vx20) entered disabled state [ 139.987609][ T792] vx10: left allmulticast mode [ 139.987846][ T792] vx10: left promiscuous mode [ 139.988180][ T792] br1: port 1(vx10) entered disabled state [ 141.051941][ T802] [ 141.052095][ T802] ============================================ [ 141.052282][ T802] WARNING: possible recursive locking detected [ 141.052462][ T802] 6.13.0-rc5-virtme #1 Not tainted [ 141.052610][ T802] -------------------------------------------- [ 141.052803][ T802] ip/802 is trying to acquire lock: [ 141.052947][ T802] ffffffff8add6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 141.053263][ T802] [ 141.053263][ T802] but task is already holding lock: [ 141.053486][ T802] ffffffff8add6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 141.053785][ T802] [ 141.053785][ T802] other info that might help us debug this: [ 141.054007][ T802] Possible unsafe locking scenario: [ 141.054007][ T802] [ 141.054223][ T802] CPU0 [ 141.054333][ T802] ---- [ 141.054449][ T802] lock((netdev_chain).rwsem); [ 141.054594][ T802] lock((netdev_chain).rwsem); [ 141.054741][ T802] [ 141.054741][ T802] *** DEADLOCK *** [ 141.054741][ T802] [ 141.054977][ T802] May be due to missing lock nesting notation [ 141.054977][ T802] [ 141.055194][ T802] 2 locks held by ip/802: [ 141.055318][ T802] #0: ffffffff8ade7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 141.055609][ T802] #1: ffffffff8add6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 141.055947][ T802] [ 141.055947][ T802] stack backtrace: [ 141.056144][ T802] CPU: 2 UID: 0 PID: 802 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 141.056389][ T802] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 141.056590][ T802] Call Trace: [ 141.056714][ T802] [ 141.056798][ T802] dump_stack_lvl+0x82/0xd0 [ 141.056966][ T802] print_deadlock_bug+0x40a/0x650 [ 141.057133][ T802] validate_chain+0x5bf/0xae0 [ 141.057306][ T802] ? __pfx_validate_chain+0x10/0x10 [ 141.057472][ T802] ? hlock_class+0x4e/0x130 [ 141.057638][ T802] ? mark_lock+0x38/0x3e0 [ 141.057768][ T802] __lock_acquire+0xb9a/0x1680 [ 141.057938][ T802] lock_acquire.part.0+0xeb/0x330 [ 141.058104][ T802] ? blocking_notifier_call_chain+0x50/0x90 [ 141.058309][ T802] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 141.058514][ T802] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 141.058674][ T802] ? trace_lock_acquire+0x14c/0x1f0 [ 141.058835][ T802] ? lock_acquire+0x32/0xc0 [ 141.058993][ T802] ? blocking_notifier_call_chain+0x50/0x90 [ 141.059202][ T802] down_read+0x9f/0x340 [ 141.059326][ T802] ? blocking_notifier_call_chain+0x50/0x90 [ 141.059532][ T802] ? __pfx_down_read+0x10/0x10 [ 141.059695][ T802] ? __lock_release+0x103/0x460 [ 141.059859][ T802] ? netconsole_netdev_event+0x2c1/0x620 [ 141.060020][ T802] ? __pfx___lock_release+0x10/0x10 [ 141.060183][ T802] blocking_notifier_call_chain+0x50/0x90 [ 141.060350][ T802] __netdev_upper_dev_unlink+0xd9/0x220 [ 141.060519][ T802] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 141.060718][ T802] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 141.060877][ T802] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 141.061075][ T802] ? rtnl_is_locked+0x15/0x20 [ 141.061237][ T802] netdev_upper_dev_unlink+0x71/0xa0 [ 141.061397][ T802] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 141.061596][ T802] ? netconsole_netdev_event+0x2c1/0x620 [ 141.061761][ T802] ? mutex_is_locked+0x1c/0x60 [ 141.061922][ T802] ? rtnl_is_locked+0x15/0x20 [ 141.062085][ T802] ? netdev_master_upper_dev_get+0x13/0x120 [ 141.062281][ T802] vrf_device_event+0x78/0xe0 [vrf] [ 141.062430][ T802] notifier_call_chain+0xcd/0x150 [ 141.062579][ T802] blocking_notifier_call_chain+0x66/0x90 [ 141.062727][ T802] unregister_netdevice_many_notify+0xa7b/0x1580 [ 141.062914][ T802] ? hlock_class+0x4e/0x130 [ 141.063058][ T802] ? mark_lock+0x38/0x3e0 [ 141.063170][ T802] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 141.063371][ T802] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 141.063556][ T802] ? kfree+0xf3/0x330 [ 141.063667][ T802] ? vlan_vid_del+0x310/0x5e0 [ 141.063817][ T802] ? vlan_vid_del+0x310/0x5e0 [ 141.063977][ T802] rtnl_dellink+0x348/0xa40 [ 141.064124][ T802] ? __pfx_rtnl_dellink+0x10/0x10 [ 141.064297][ T802] ? find_held_lock+0x2c/0x110 [ 141.064447][ T802] ? __lock_release+0x103/0x460 [ 141.064593][ T802] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 141.064737][ T802] ? __pfx___lock_release+0x10/0x10 [ 141.064881][ T802] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 141.065043][ T802] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 141.065188][ T802] ? __pfx_rtnl_dellink+0x10/0x10 [ 141.065334][ T802] rtnetlink_rcv_msg+0x712/0xc10 [ 141.065479][ T802] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 141.065633][ T802] ? hlock_class+0x4e/0x130 [ 141.065777][ T802] ? mark_lock+0x38/0x3e0 [ 141.065903][ T802] ? __lock_acquire+0xb9a/0x1680 [ 141.066048][ T802] netlink_rcv_skb+0x130/0x360 [ 141.066199][ T802] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 141.066344][ T802] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 141.066496][ T802] ? netlink_deliver_tap+0x13e/0x340 [ 141.066669][ T802] ? netlink_deliver_tap+0xc3/0x340 [ 141.066817][ T802] netlink_unicast+0x44b/0x710 [ 141.066977][ T802] ? __pfx_netlink_unicast+0x10/0x10 [ 141.067127][ T802] ? find_held_lock+0x2c/0x110 [ 141.067279][ T802] netlink_sendmsg+0x723/0xbe0 [ 141.067426][ T802] ? __pfx_netlink_sendmsg+0x10/0x10 [ 141.067572][ T802] ____sys_sendmsg+0x7ac/0xa10 [ 141.067719][ T802] ? __pfx_____sys_sendmsg+0x10/0x10 [ 141.067871][ T802] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 141.068057][ T802] ___sys_sendmsg+0xee/0x170 [ 141.068202][ T802] ? __pfx____sys_sendmsg+0x10/0x10 [ 141.068353][ T802] ? kasan_save_stack+0x34/0x50 [ 141.068498][ T802] ? kasan_save_stack+0x24/0x50 [ 141.068653][ T802] ? __kasan_record_aux_stack+0x8e/0xa0 [ 141.068801][ T802] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 141.068983][ T802] ? __x64_sys_close+0x7c/0xd0 [ 141.069157][ T802] ? do_syscall_64+0xc1/0x1d0 [ 141.069303][ T802] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 141.069488][ T802] ? __lock_acquire+0xb9a/0x1680 [ 141.069634][ T802] ? find_held_lock+0x2c/0x110 [ 141.069781][ T802] ? __lock_release+0x103/0x460 [ 141.069927][ T802] ? __virt_addr_valid+0x22b/0x430 [ 141.070076][ T802] ? __pfx___lock_release+0x10/0x10 [ 141.070219][ T802] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 141.070366][ T802] __sys_sendmsg+0x109/0x1a0 [ 141.070515][ T802] ? __pfx___sys_sendmsg+0x10/0x10 [ 141.070660][ T802] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 141.070846][ T802] do_syscall_64+0xc1/0x1d0 [ 141.070990][ T802] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 141.071170][ T802] RIP: 0033:0x7f4e9794e9a7 [ 141.071324][ 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 [ 141.071851][ T802] RSP: 002b:00007fff51b1b228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 141.072103][ T802] RAX: ffffffffffffffda RBX: 00007fff51b1b950 RCX: 00007f4e9794e9a7 [ 141.072330][ T802] RDX: 0000000000000000 RSI: 00007fff51b1b290 RDI: 0000000000000005 [ 141.072550][ T802] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 141.072778][ T802] R10: 00007f4e9780cef8 R11: 0000000000000246 R12: 0000000000000002 [ 141.072999][ T802] R13: 00000000677929f3 R14: 0000000000498600 R15: 0000000000000000 [ 141.073219][ T802] [ 141.104651][ T802] ip (802) used greatest stack depth: 23296 bytes left