[ 10.989227][ T249] ip (249) used greatest stack depth: 23136 bytes left [ 14.021248][ T302] 8021q: 802.1Q VLAN Support v1.8 [ 18.069065][ T352] br1: port 1(vx10) entered blocking state [ 18.070194][ T352] br1: port 1(vx10) entered disabled state [ 18.070670][ T352] vx10: entered allmulticast mode [ 18.072890][ T352] vx10: entered promiscuous mode [ 18.074003][ T352] br1: port 1(vx10) entered blocking state [ 18.074383][ T352] br1: port 1(vx10) entered forwarding state [ 18.426677][ T357] br1: port 2(vx20) entered blocking state [ 18.426970][ T357] br1: port 2(vx20) entered disabled state [ 18.427265][ T357] vx20: entered allmulticast mode [ 18.429258][ T357] vx20: entered promiscuous mode [ 18.430177][ T357] br1: port 2(vx20) entered blocking state [ 18.430448][ T357] br1: port 2(vx20) entered forwarding state [ 18.581935][ T359] br1: port 3(veth1) entered blocking state [ 18.582277][ T359] br1: port 3(veth1) entered disabled state [ 18.583325][ T359] veth1: entered allmulticast mode [ 18.585289][ T359] veth1: entered promiscuous mode [ 18.660835][ T40] br1: port 3(veth1) entered blocking state [ 18.661253][ T40] br1: port 3(veth1) entered forwarding state [ 19.034721][ T364] br1: port 4(veth2) entered blocking state [ 19.035020][ T364] br1: port 4(veth2) entered disabled state [ 19.035307][ T364] veth2: entered allmulticast mode [ 19.038612][ T364] veth2: entered promiscuous mode [ 19.125094][ T39] br1: port 4(veth2) entered blocking state [ 19.125425][ T39] br1: port 4(veth2) entered forwarding state [ 22.892776][ T414] br2: port 1(w1) entered blocking state [ 22.893066][ T414] br2: port 1(w1) entered disabled state [ 22.893330][ T414] w1: entered allmulticast mode [ 22.895636][ T414] w1: entered promiscuous mode [ 23.583278][ T422] br2: port 2(vx10) entered blocking state [ 23.583620][ T422] br2: port 2(vx10) entered disabled state [ 23.583924][ T422] vx10: entered allmulticast mode [ 23.586054][ T422] vx10: entered promiscuous mode [ 23.594403][ T422] br2: port 2(vx10) entered blocking state [ 23.594750][ T422] br2: port 2(vx10) entered forwarding state [ 24.243044][ T429] br2: port 3(vx20) entered blocking state [ 24.243488][ T429] br2: port 3(vx20) entered disabled state [ 24.243909][ T429] vx20: entered allmulticast mode [ 24.247012][ T429] vx20: entered promiscuous mode [ 24.247850][ T429] br2: port 3(vx20) entered blocking state [ 24.248250][ T429] br2: port 3(vx20) entered forwarding state [ 24.962870][ T182] br2: port 1(w1) entered blocking state [ 24.963433][ T182] br2: port 1(w1) entered forwarding state [ 27.596858][ T471] br2: port 1(w1) entered blocking state [ 27.597151][ T471] br2: port 1(w1) entered disabled state [ 27.597784][ T471] w1: entered allmulticast mode [ 27.599781][ T471] w1: entered promiscuous mode [ 28.273962][ T479] br2: port 2(vx10) entered blocking state [ 28.274493][ T479] br2: port 2(vx10) entered disabled state [ 28.274955][ T479] vx10: entered allmulticast mode [ 28.278261][ T479] vx10: entered promiscuous mode [ 28.280166][ T479] br2: port 2(vx10) entered blocking state [ 28.280648][ T479] br2: port 2(vx10) entered forwarding state [ 28.950731][ T486] br2: port 3(vx20) entered blocking state [ 28.951049][ T486] br2: port 3(vx20) entered disabled state [ 28.951450][ T486] vx20: entered allmulticast mode [ 28.953441][ T486] vx20: entered promiscuous mode [ 28.953992][ T486] br2: port 3(vx20) entered blocking state [ 28.954262][ T486] br2: port 3(vx20) entered forwarding state [ 29.711743][ T182] br2: port 1(w1) entered blocking state [ 29.712173][ T182] br2: port 1(w1) entered forwarding state [ 40.936232][ T573] GACT probability NOT on [ 135.492827][ T11] vx20: left allmulticast mode [ 135.493128][ T11] vx20: left promiscuous mode [ 135.493509][ T11] br2: port 3(vx20) entered disabled state [ 135.496633][ T11] vx10: left allmulticast mode [ 135.496834][ T11] vx10: left promiscuous mode [ 135.497139][ T11] br2: port 2(vx10) entered disabled state [ 135.499223][ T11] w1: left allmulticast mode [ 135.499968][ T11] w1: left promiscuous mode [ 135.500284][ T11] br2: port 1(w1) entered disabled state [ 136.024094][ T11] vx20: left allmulticast mode [ 136.024435][ T11] vx20: left promiscuous mode [ 136.024896][ T11] br2: port 3(vx20) entered disabled state [ 136.029477][ T11] vx10: left allmulticast mode [ 136.029682][ T11] vx10: left promiscuous mode [ 136.029978][ T11] br2: port 2(vx10) entered disabled state [ 136.033580][ T11] w1: left allmulticast mode [ 136.033884][ T11] w1: left promiscuous mode [ 136.036119][ T11] br2: port 1(w1) entered disabled state [ 138.336172][ T781] br1: port 4(veth2) entered disabled state [ 138.414158][ T782] veth2: left allmulticast mode [ 138.415159][ T782] veth2: left promiscuous mode [ 138.415518][ T782] br1: port 4(veth2) entered disabled state [ 138.825931][ T786] br1: port 3(veth1) entered disabled state [ 138.899815][ T787] veth1: left allmulticast mode [ 138.900043][ T787] veth1: left promiscuous mode [ 138.900370][ T787] br1: port 3(veth1) entered disabled state [ 139.073620][ T789] vx20: left allmulticast mode [ 139.073978][ T789] vx20: left promiscuous mode [ 139.074479][ T789] br1: port 2(vx20) entered disabled state [ 139.466195][ T793] vx10: left allmulticast mode [ 139.466938][ T793] vx10: left promiscuous mode [ 139.467262][ T793] br1: port 1(vx10) entered disabled state [ 140.535846][ T803] [ 140.535975][ T803] ============================================ [ 140.536164][ T803] WARNING: possible recursive locking detected [ 140.536365][ T803] 6.13.0-rc5-virtme #1 Not tainted [ 140.536513][ T803] -------------------------------------------- [ 140.536694][ T803] ip/803 is trying to acquire lock: [ 140.536842][ T803] ffffffffa63d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 140.537140][ T803] [ 140.537140][ T803] but task is already holding lock: [ 140.537364][ T803] ffffffffa63d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 140.537661][ T803] [ 140.537661][ T803] other info that might help us debug this: [ 140.537872][ T803] Possible unsafe locking scenario: [ 140.537872][ T803] [ 140.538089][ T803] CPU0 [ 140.538199][ T803] ---- [ 140.538320][ T803] lock((netdev_chain).rwsem); [ 140.538470][ T803] lock((netdev_chain).rwsem); [ 140.538617][ T803] [ 140.538617][ T803] *** DEADLOCK *** [ 140.538617][ T803] [ 140.538833][ T803] May be due to missing lock nesting notation [ 140.538833][ T803] [ 140.539054][ T803] 2 locks held by ip/803: [ 140.539167][ T803] #0: ffffffffa63e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 140.539444][ T803] #1: ffffffffa63d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 140.539745][ T803] [ 140.539745][ T803] stack backtrace: [ 140.539924][ T803] CPU: 3 UID: 0 PID: 803 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 140.540144][ T803] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 140.540337][ T803] Call Trace: [ 140.540449][ T803] [ 140.540527][ T803] dump_stack_lvl+0x82/0xd0 [ 140.540680][ T803] print_deadlock_bug+0x40a/0x650 [ 140.540830][ T803] validate_chain+0x5bf/0xae0 [ 140.540979][ T803] ? __pfx_validate_chain+0x10/0x10 [ 140.541133][ T803] ? hlock_class+0x4e/0x130 [ 140.541288][ T803] ? mark_lock+0x38/0x3e0 [ 140.541404][ T803] __lock_acquire+0xb9a/0x1680 [ 140.541554][ T803] lock_acquire.part.0+0xeb/0x330 [ 140.541707][ T803] ? blocking_notifier_call_chain+0x50/0x90 [ 140.541890][ T803] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 140.542075][ T803] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 140.542227][ T803] ? trace_lock_acquire+0x14c/0x1f0 [ 140.542404][ T803] ? lock_acquire+0x32/0xc0 [ 140.542554][ T803] ? blocking_notifier_call_chain+0x50/0x90 [ 140.542739][ T803] down_read+0x9f/0x340 [ 140.542851][ T803] ? blocking_notifier_call_chain+0x50/0x90 [ 140.543037][ T803] ? __pfx_down_read+0x10/0x10 [ 140.543186][ T803] ? __lock_release+0x103/0x460 [ 140.543348][ T803] ? netconsole_netdev_event+0x2c1/0x620 [ 140.543500][ T803] ? __pfx___lock_release+0x10/0x10 [ 140.543657][ T803] blocking_notifier_call_chain+0x50/0x90 [ 140.543808][ T803] __netdev_upper_dev_unlink+0xd9/0x220 [ 140.543957][ T803] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 140.544138][ T803] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 140.544291][ T803] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 140.544484][ T803] ? rtnl_is_locked+0x15/0x20 [ 140.544644][ T803] netdev_upper_dev_unlink+0x71/0xa0 [ 140.544792][ T803] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 140.544977][ T803] ? netconsole_netdev_event+0x2c1/0x620 [ 140.545130][ T803] ? mutex_is_locked+0x1c/0x60 [ 140.545284][ T803] ? rtnl_is_locked+0x15/0x20 [ 140.545439][ T803] ? netdev_master_upper_dev_get+0x13/0x120 [ 140.545625][ T803] vrf_device_event+0x78/0xe0 [vrf] [ 140.545788][ T803] notifier_call_chain+0xcd/0x150 [ 140.545936][ T803] blocking_notifier_call_chain+0x66/0x90 [ 140.546083][ T803] unregister_netdevice_many_notify+0xa7b/0x1580 [ 140.546266][ T803] ? hlock_class+0x4e/0x130 [ 140.546423][ T803] ? mark_lock+0x38/0x3e0 [ 140.546540][ T803] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 140.546744][ T803] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 140.546938][ T803] ? kfree+0xf3/0x330 [ 140.547053][ T803] ? vlan_vid_del+0x310/0x5e0 [ 140.547208][ T803] ? vlan_vid_del+0x310/0x5e0 [ 140.547395][ T803] rtnl_dellink+0x348/0xa40 [ 140.547572][ T803] ? __pfx_rtnl_dellink+0x10/0x10 [ 140.547736][ T803] ? find_held_lock+0x2c/0x110 [ 140.547891][ T803] ? __lock_release+0x103/0x460 [ 140.548035][ T803] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 140.548193][ T803] ? __pfx___lock_release+0x10/0x10 [ 140.548368][ T803] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 140.548581][ T803] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 140.548799][ T803] ? __pfx_rtnl_dellink+0x10/0x10 [ 140.549021][ T803] rtnetlink_rcv_msg+0x712/0xc10 [ 140.549239][ T803] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 140.549461][ T803] ? hlock_class+0x4e/0x130 [ 140.549690][ T803] ? mark_lock+0x38/0x3e0 [ 140.549862][ T803] ? __lock_acquire+0xb9a/0x1680 [ 140.550089][ T803] netlink_rcv_skb+0x130/0x360 [ 140.550317][ T803] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 140.550545][ T803] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 140.550780][ T803] ? netlink_deliver_tap+0x13e/0x340 [ 140.551015][ T803] ? netlink_deliver_tap+0xc3/0x340 [ 140.551245][ T803] netlink_unicast+0x44b/0x710 [ 140.551475][ T803] ? __pfx_netlink_unicast+0x10/0x10 [ 140.551706][ T803] ? find_held_lock+0x2c/0x110 [ 140.551942][ T803] netlink_sendmsg+0x723/0xbe0 [ 140.552166][ T803] ? __pfx_netlink_sendmsg+0x10/0x10 [ 140.552360][ T803] ____sys_sendmsg+0x7ac/0xa10 [ 140.552562][ T803] ? __pfx_____sys_sendmsg+0x10/0x10 [ 140.552738][ T803] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 140.552927][ T803] ___sys_sendmsg+0xee/0x170 [ 140.553081][ T803] ? __pfx____sys_sendmsg+0x10/0x10 [ 140.553230][ T803] ? kasan_save_stack+0x34/0x50 [ 140.553388][ T803] ? kasan_save_stack+0x24/0x50 [ 140.553535][ T803] ? __kasan_record_aux_stack+0x8e/0xa0 [ 140.553684][ T803] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 140.553879][ T803] ? __x64_sys_close+0x7c/0xd0 [ 140.554029][ T803] ? do_syscall_64+0xc1/0x1d0 [ 140.554184][ T803] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.554377][ T803] ? __lock_acquire+0xb9a/0x1680 [ 140.554534][ T803] ? find_held_lock+0x2c/0x110 [ 140.554683][ T803] ? __lock_release+0x103/0x460 [ 140.554830][ T803] ? __virt_addr_valid+0x22b/0x430 [ 140.554982][ T803] ? __pfx___lock_release+0x10/0x10 [ 140.555129][ T803] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 140.555279][ T803] __sys_sendmsg+0x109/0x1a0 [ 140.555436][ T803] ? __pfx___sys_sendmsg+0x10/0x10 [ 140.555583][ T803] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 140.555773][ T803] do_syscall_64+0xc1/0x1d0 [ 140.555919][ T803] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.556115][ T803] RIP: 0033:0x7f53ad6aa9a7 [ 140.556274][ T803] 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 [ 140.556805][ T803] RSP: 002b:00007ffc0709ccb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 140.557029][ T803] RAX: ffffffffffffffda RBX: 00007ffc0709d3e0 RCX: 00007f53ad6aa9a7 [ 140.557256][ T803] RDX: 0000000000000000 RSI: 00007ffc0709cd20 RDI: 0000000000000005 [ 140.557488][ T803] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 140.557711][ T803] R10: 00007f53ad568ef8 R11: 0000000000000246 R12: 0000000000000002 [ 140.557935][ T803] R13: 000000006778ff67 R14: 0000000000498600 R15: 0000000000000000 [ 140.558167][ T803]