[ 11.499271][ T250] ip (250) used greatest stack depth: 24072 bytes left [ 11.834410][ T260] ip (260) used greatest stack depth: 23664 bytes left [ 13.779119][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 17.017840][ T378] GACT probability NOT on [ 18.424007][ T413] br10: port 1(veth1.10) entered blocking state [ 18.424551][ T413] br10: port 1(veth1.10) entered disabled state [ 18.424971][ T413] veth1.10: entered allmulticast mode [ 18.425175][ T413] veth1: entered allmulticast mode [ 18.427645][ T413] veth1.10: entered promiscuous mode [ 18.427880][ T413] veth1: entered promiscuous mode [ 18.898262][ T430] br11: port 1(veth1.11) entered blocking state [ 18.899050][ T430] br11: port 1(veth1.11) entered disabled state [ 18.899338][ T430] veth1.11: entered allmulticast mode [ 18.901442][ T430] veth1.11: entered promiscuous mode [ 19.809994][ T460] br10: port 2(veth2.10) entered blocking state [ 19.811467][ T460] br10: port 2(veth2.10) entered disabled state [ 19.811784][ T460] veth2.10: entered allmulticast mode [ 19.811973][ T460] veth2: entered allmulticast mode [ 19.813884][ T460] veth2.10: entered promiscuous mode [ 19.814110][ T460] veth2: entered promiscuous mode [ 20.303169][ T477] br11: port 2(veth2.11) entered blocking state [ 20.303482][ T477] br11: port 2(veth2.11) entered disabled state [ 20.303766][ T477] veth2.11: entered allmulticast mode [ 20.305829][ T477] veth2.11: entered promiscuous mode [ 20.728295][ T489] br10: port 2(veth2.10) entered blocking state [ 20.728781][ T489] br10: port 2(veth2.10) entered forwarding state [ 20.729627][ T489] br10: port 1(veth1.10) entered blocking state [ 20.729901][ T489] br10: port 1(veth1.10) entered forwarding state [ 20.877334][ T494] br11: port 2(veth2.11) entered blocking state [ 20.877884][ T494] br11: port 2(veth2.11) entered forwarding state [ 20.879047][ T494] br11: port 1(veth1.11) entered blocking state [ 20.879480][ T494] br11: port 1(veth1.11) entered forwarding state [ 47.563095][ T619] br11: port 2(veth2.11) entered disabled state [ 47.564228][ T619] br11: port 1(veth1.11) entered disabled state [ 47.676649][ T621] br10: port 2(veth2.10) entered disabled state [ 47.677260][ T621] br10: port 1(veth1.10) entered disabled state [ 47.867623][ T625] veth2.11: left allmulticast mode [ 47.867889][ T625] veth2.11: left promiscuous mode [ 47.868238][ T625] br11: port 2(veth2.11) entered disabled state [ 48.110838][ T629] veth2: left allmulticast mode [ 48.111123][ T629] veth2: left promiscuous mode [ 48.212855][ T633] veth2.10: left allmulticast mode [ 48.213165][ T633] veth2.10: left promiscuous mode [ 48.213565][ T633] br10: port 2(veth2.10) entered disabled state [ 48.765064][ T644] veth1.11: left allmulticast mode [ 48.765287][ T644] veth1.11: left promiscuous mode [ 48.765625][ T644] br11: port 1(veth1.11) entered disabled state [ 48.995131][ T648] veth1: left allmulticast mode [ 48.996462][ T648] veth1: left promiscuous mode [ 49.076205][ T650] veth1.10: left allmulticast mode [ 49.077501][ T650] veth1.10: left promiscuous mode [ 49.078006][ T650] br10: port 1(veth1.10) entered disabled state [ 49.969028][ T664] [ 49.969182][ T664] ============================================ [ 49.969395][ T664] WARNING: possible recursive locking detected [ 49.969598][ T664] 6.13.0-rc5-virtme #1 Not tainted [ 49.969768][ T664] -------------------------------------------- [ 49.969972][ T664] ip/664 is trying to acquire lock: [ 49.970150][ T664] ffffffff8fbd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 49.970493][ T664] [ 49.970493][ T664] but task is already holding lock: [ 49.970735][ T664] ffffffff8fbd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 49.971058][ T664] [ 49.971058][ T664] other info that might help us debug this: [ 49.971297][ T664] Possible unsafe locking scenario: [ 49.971297][ T664] [ 49.971541][ T664] CPU0 [ 49.971663][ T664] ---- [ 49.971794][ T664] lock((netdev_chain).rwsem); [ 49.971960][ T664] lock((netdev_chain).rwsem); [ 49.972129][ T664] [ 49.972129][ T664] *** DEADLOCK *** [ 49.972129][ T664] [ 49.972378][ T664] May be due to missing lock nesting notation [ 49.972378][ T664] [ 49.972625][ T664] 2 locks held by ip/664: [ 49.972752][ T664] #0: ffffffff8fbe7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 49.973056][ T664] #1: ffffffff8fbd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 49.973382][ T664] [ 49.973382][ T664] stack backtrace: [ 49.973580][ T664] CPU: 2 UID: 0 PID: 664 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 49.973822][ T664] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 49.974026][ T664] Call Trace: [ 49.974148][ T664] [ 49.974225][ T664] dump_stack_lvl+0x82/0xd0 [ 49.974379][ T664] print_deadlock_bug+0x40a/0x650 [ 49.974531][ T664] validate_chain+0x5bf/0xae0 [ 49.974698][ T664] ? __pfx_validate_chain+0x10/0x10 [ 49.974858][ T664] ? hlock_class+0x4e/0x130 [ 49.975005][ T664] ? mark_lock+0x38/0x3e0 [ 49.975124][ T664] __lock_acquire+0xb9a/0x1680 [ 49.975290][ T664] lock_acquire.part.0+0xeb/0x330 [ 49.975447][ T664] ? blocking_notifier_call_chain+0x50/0x90 [ 49.975641][ T664] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 49.975847][ T664] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 49.976008][ T664] ? trace_lock_acquire+0x14c/0x1f0 [ 49.976157][ T664] ? lock_acquire+0x32/0xc0 [ 49.976313][ T664] ? blocking_notifier_call_chain+0x50/0x90 [ 49.976501][ T664] down_read+0x9f/0x340 [ 49.976614][ T664] ? blocking_notifier_call_chain+0x50/0x90 [ 49.976798][ T664] ? __pfx_down_read+0x10/0x10 [ 49.976944][ T664] ? __lock_release+0x103/0x460 [ 49.977105][ T664] ? netconsole_netdev_event+0x2c1/0x620 [ 49.977259][ T664] ? __pfx___lock_release+0x10/0x10 [ 49.977409][ T664] blocking_notifier_call_chain+0x50/0x90 [ 49.977573][ T664] __netdev_upper_dev_unlink+0xd9/0x220 [ 49.977739][ T664] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 49.977934][ T664] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 49.978087][ T664] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 49.978283][ T664] ? rtnl_is_locked+0x15/0x20 [ 49.978436][ T664] netdev_upper_dev_unlink+0x71/0xa0 [ 49.978585][ T664] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 49.978778][ T664] ? netconsole_netdev_event+0x2c1/0x620 [ 49.978936][ T664] ? mutex_is_locked+0x1c/0x60 [ 49.979096][ T664] ? rtnl_is_locked+0x15/0x20 [ 49.979245][ T664] ? netdev_master_upper_dev_get+0x13/0x120 [ 49.979448][ T664] vrf_device_event+0x78/0xe0 [vrf] [ 49.979613][ T664] notifier_call_chain+0xcd/0x150 [ 49.979779][ T664] blocking_notifier_call_chain+0x66/0x90 [ 49.979943][ T664] unregister_netdevice_many_notify+0xa7b/0x1580 [ 49.980143][ T664] ? hlock_class+0x4e/0x130 [ 49.980289][ T664] ? mark_lock+0x38/0x3e0 [ 49.980401][ T664] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 49.980593][ T664] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 49.980791][ T664] ? kfree+0xf3/0x330 [ 49.980917][ T664] ? vlan_vid_del+0x310/0x5e0 [ 49.981084][ T664] ? vlan_vid_del+0x310/0x5e0 [ 49.981244][ T664] rtnl_dellink+0x348/0xa40 [ 49.981403][ T664] ? __pfx_rtnl_dellink+0x10/0x10 [ 49.981572][ T664] ? find_held_lock+0x2c/0x110 [ 49.981727][ T664] ? __lock_release+0x103/0x460 [ 49.981886][ T664] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 49.982041][ T664] ? __pfx___lock_release+0x10/0x10 [ 49.982192][ T664] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 49.982339][ T664] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 49.982485][ T664] ? __pfx_rtnl_dellink+0x10/0x10 [ 49.982633][ T664] rtnetlink_rcv_msg+0x712/0xc10 [ 49.982782][ T664] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 49.982930][ T664] ? hlock_class+0x4e/0x130 [ 49.983074][ T664] ? mark_lock+0x38/0x3e0 [ 49.983192][ T664] ? __lock_acquire+0xb9a/0x1680 [ 49.983339][ T664] netlink_rcv_skb+0x130/0x360 [ 49.983491][ T664] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 49.983637][ T664] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 49.983788][ T664] ? netlink_deliver_tap+0x13e/0x340 [ 49.983938][ T664] ? netlink_deliver_tap+0xc3/0x340 [ 49.984086][ T664] netlink_unicast+0x44b/0x710 [ 49.984237][ T664] ? __pfx_netlink_unicast+0x10/0x10 [ 49.984384][ T664] ? find_held_lock+0x2c/0x110 [ 49.984532][ T664] netlink_sendmsg+0x723/0xbe0 [ 49.984681][ T664] ? __pfx_netlink_sendmsg+0x10/0x10 [ 49.984829][ T664] ____sys_sendmsg+0x7ac/0xa10 [ 49.984980][ T664] ? __pfx_____sys_sendmsg+0x10/0x10 [ 49.985124][ T664] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 49.985316][ T664] ___sys_sendmsg+0xee/0x170 [ 49.985468][ T664] ? __pfx____sys_sendmsg+0x10/0x10 [ 49.985617][ T664] ? kasan_save_stack+0x34/0x50 [ 49.985768][ T664] ? kasan_save_stack+0x24/0x50 [ 49.985913][ T664] ? __kasan_record_aux_stack+0x8e/0xa0 [ 49.986060][ T664] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 49.986246][ T664] ? __x64_sys_close+0x7c/0xd0 [ 49.986393][ T664] ? do_syscall_64+0xc1/0x1d0 [ 49.986547][ T664] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.986740][ T664] ? __lock_acquire+0xb9a/0x1680 [ 49.986886][ T664] ? find_held_lock+0x2c/0x110 [ 49.987032][ T664] ? __lock_release+0x103/0x460 [ 49.987177][ T664] ? __virt_addr_valid+0x22b/0x430 [ 49.987329][ T664] ? __pfx___lock_release+0x10/0x10 [ 49.987475][ T664] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 49.987626][ T664] __sys_sendmsg+0x109/0x1a0 [ 49.987777][ T664] ? __pfx___sys_sendmsg+0x10/0x10 [ 49.987924][ T664] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 49.988111][ T664] do_syscall_64+0xc1/0x1d0 [ 49.988258][ T664] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.988438][ T664] RIP: 0033:0x7ff025fbe9a7 [ 49.988595][ T664] 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 [ 49.989121][ T664] RSP: 002b:00007fff7744c348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 49.989343][ T664] RAX: ffffffffffffffda RBX: 00007fff7744ca70 RCX: 00007ff025fbe9a7 [ 49.989564][ T664] RDX: 0000000000000000 RSI: 00007fff7744c3b0 RDI: 0000000000000005 [ 49.989807][ T664] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 49.990042][ T664] R10: 00007ff025e7cef8 R11: 0000000000000246 R12: 0000000000000002 [ 49.990264][ T664] R13: 0000000067792b39 R14: 0000000000498600 R15: 0000000000000000 [ 49.990487][ T664]