[ 28.184700][ T283] 8021q: 802.1Q VLAN Support v1.8 [ 32.105214][ T325] GACT probability NOT on [ 33.451287][ T340] br10: port 1(veth1.10) entered blocking state [ 33.451740][ T340] br10: port 1(veth1.10) entered disabled state [ 33.452069][ T340] veth1.10: entered allmulticast mode [ 33.452264][ T340] veth1: entered allmulticast mode [ 33.454206][ T340] veth1.10: entered promiscuous mode [ 33.454410][ T340] veth1: entered promiscuous mode [ 33.942594][ T345] br11: port 1(veth1.11) entered blocking state [ 33.942877][ T345] br11: port 1(veth1.11) entered disabled state [ 33.943110][ T345] veth1.11: entered allmulticast mode [ 33.945213][ T345] veth1.11: entered promiscuous mode [ 34.825568][ T355] br10: port 2(veth2.10) entered blocking state [ 34.825832][ T355] br10: port 2(veth2.10) entered disabled state [ 34.826093][ T355] veth2.10: entered allmulticast mode [ 34.826294][ T355] veth2: entered allmulticast mode [ 34.829588][ T355] veth2.10: entered promiscuous mode [ 34.829816][ T355] veth2: entered promiscuous mode [ 35.359118][ T360] br11: port 2(veth2.11) entered blocking state [ 35.359389][ T360] br11: port 2(veth2.11) entered disabled state [ 35.359637][ T360] veth2.11: entered allmulticast mode [ 35.361466][ T360] veth2.11: entered promiscuous mode [ 35.864406][ T364] br10: port 2(veth2.10) entered blocking state [ 35.864797][ T364] br10: port 2(veth2.10) entered forwarding state [ 35.865662][ T364] br10: port 1(veth1.10) entered blocking state [ 35.865921][ T364] br10: port 1(veth1.10) entered forwarding state [ 35.984969][ T365] br11: port 2(veth2.11) entered blocking state [ 35.985311][ T365] br11: port 2(veth2.11) entered forwarding state [ 35.985750][ T365] br11: port 1(veth1.11) entered blocking state [ 35.986303][ T365] br11: port 1(veth1.11) entered forwarding state [ 50.994228][ C1] [ 50.994410][ C1] ======================================================== [ 50.994650][ C1] WARNING: possible irq lock inversion dependency detected [ 50.994852][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 50.994994][ C1] -------------------------------------------------------- [ 50.995200][ C1] swapper/1/0 just changed the state of lock: [ 50.995398][ C1] ffff888008a0ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.995759][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 50.995994][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 50.995999][ C1] [ 50.995999][ C1] [ 50.995999][ C1] and interrupts could create inverse lock ordering between them. [ 50.995999][ C1] [ 50.996555][ C1] [ 50.996555][ C1] other info that might help us debug this: [ 50.996774][ C1] Chain exists of: [ 50.996774][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 50.996774][ C1] [ 50.997107][ C1] Possible interrupt unsafe locking scenario: [ 50.997107][ C1] [ 50.997343][ C1] CPU0 CPU1 [ 50.997491][ C1] ---- ---- [ 50.997638][ C1] lock(&p->alloc_lock); [ 50.997754][ C1] local_irq_disable(); [ 50.997940][ C1] lock(&br->lock); [ 50.998131][ C1] lock(lweventlist_lock); [ 50.998313][ C1] [ 50.998427][ C1] lock(&br->lock); [ 50.998540][ C1] [ 50.998540][ C1] *** DEADLOCK *** [ 50.998540][ C1] [ 50.998760][ C1] 1 lock held by swapper/1/0: [ 50.998912][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 50.999216][ C1] [ 50.999216][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 50.999490][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 50.999643][ C1] HARDIRQ-ON-W at: [ 50.999753][ C1] __lock_acquire+0x797/0x1570 [ 50.999949][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.000137][ C1] _raw_spin_lock+0x30/0x40 [ 51.000329][ C1] set_mems_allowed+0x1d/0x210 [ 51.000517][ C1] kernel_init_freeable+0x72/0x310 [ 51.000707][ C1] kernel_init+0x20/0x200 [ 51.000892][ C1] ret_from_fork+0x31/0x70 [ 51.001075][ C1] ret_from_fork_asm+0x1a/0x30 [ 51.001260][ C1] SOFTIRQ-ON-W at: [ 51.001371][ C1] __lock_acquire+0x797/0x1570 [ 51.001554][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.001745][ C1] _raw_spin_lock+0x30/0x40 [ 51.001933][ C1] set_mems_allowed+0x1d/0x210 [ 51.002121][ C1] kernel_init_freeable+0x72/0x310 [ 51.002308][ C1] kernel_init+0x20/0x200 [ 51.002492][ C1] ret_from_fork+0x31/0x70 [ 51.002678][ C1] ret_from_fork_asm+0x1a/0x30 [ 51.002881][ C1] INITIAL USE at: [ 51.003033][ C1] __lock_acquire+0x797/0x1570 [ 51.003301][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.003565][ C1] _raw_spin_lock+0x30/0x40 [ 51.003837][ C1] set_mems_allowed+0x1d/0x210 [ 51.004109][ C1] kernel_init_freeable+0x72/0x310 [ 51.004390][ C1] kernel_init+0x20/0x200 [ 51.004662][ C1] ret_from_fork+0x31/0x70 [ 51.004931][ C1] ret_from_fork_asm+0x1a/0x30 [ 51.005200][ C1] } [ 51.005308][ C1] ... key at: [] __key.387+0x0/0x40 [ 51.005632][ C1] ... acquired at: [ 51.005795][ C1] __lock_acquire+0xaf0/0x1570 [ 51.006033][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.006243][ C1] _raw_spin_lock+0x30/0x40 [ 51.006461][ C1] __get_task_comm+0x27/0x70 [ 51.006626][ C1] ref_tracker_alloc+0x2ee/0x490 [ 51.006777][ C1] linkwatch_fire_event+0x196/0x200 [ 51.006924][ C1] veth_newlink+0x367/0x830 [veth] [ 51.007080][ C1] rtnl_newlink_create+0x341/0x850 [ 51.007236][ C1] __rtnl_newlink+0xac9/0xd80 [ 51.007394][ C1] rtnl_newlink+0x63/0xa0 [ 51.007543][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.007689][ C1] netlink_rcv_skb+0x130/0x360 [ 51.007838][ C1] netlink_unicast+0x449/0x710 [ 51.007986][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.008128][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 51.008282][ C1] ___sys_sendmsg+0xee/0x170 [ 51.008432][ C1] __sys_sendmsg+0xcd/0x170 [ 51.008585][ C1] do_syscall_64+0xc6/0x1e0 [ 51.008735][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.008922][ C1] [ 51.008999][ C1] -> (lweventlist_lock){....}-{2:2} { [ 51.009153][ C1] INITIAL USE at: [ 51.009265][ C1] __lock_acquire+0x797/0x1570 [ 51.009459][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.009636][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 51.009815][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 51.009986][ C1] rtnl_getlink+0x4c9/0x970 [ 51.010160][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.010413][ C1] netlink_rcv_skb+0x130/0x360 [ 51.010630][ C1] netlink_unicast+0x449/0x710 [ 51.010810][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.010981][ C1] __sys_sendto+0x37d/0x410 [ 51.011154][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 51.011334][ C1] do_syscall_64+0xc6/0x1e0 [ 51.011505][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.011706][ C1] } [ 51.011775][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 51.011988][ C1] ... acquired at: [ 51.012090][ C1] __lock_acquire+0xaf0/0x1570 [ 51.012228][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.012378][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 51.012516][ C1] linkwatch_fire_event+0x74/0x200 [ 51.012653][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 51.012870][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 51.013081][ C1] dev_set_mac_address+0x28a/0x410 [ 51.013220][ C1] dev_set_mac_address_user+0x31/0x50 [ 51.013375][ C1] do_setlink+0x17b4/0x21e0 [ 51.013524][ C1] rtnl_setlink+0x1f7/0x310 [ 51.013663][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.013800][ C1] netlink_rcv_skb+0x130/0x360 [ 51.013938][ C1] netlink_unicast+0x449/0x710 [ 51.014072][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.014212][ C1] __sys_sendto+0x37d/0x410 [ 51.014504][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 51.014647][ C1] do_syscall_64+0xc6/0x1e0 [ 51.014791][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.014960][ C1] [ 51.015028][ C1] -> (&br->lock){+.-.}-{2:2} { [ 51.015278][ C1] HARDIRQ-ON-W at: [ 51.015438][ C1] __lock_acquire+0x797/0x1570 [ 51.015610][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.015785][ C1] _raw_spin_lock_bh+0x38/0x50 [ 51.015960][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 51.016209][ C1] dev_set_mac_address+0x28a/0x410 [ 51.016395][ C1] dev_set_mac_address_user+0x31/0x50 [ 51.016569][ C1] do_setlink+0x17b4/0x21e0 [ 51.016740][ C1] rtnl_setlink+0x1f7/0x310 [ 51.016915][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.017096][ C1] netlink_rcv_skb+0x130/0x360 [ 51.017278][ C1] netlink_unicast+0x449/0x710 [ 51.017458][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.017633][ C1] __sys_sendto+0x37d/0x410 [ 51.017888][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 51.018066][ C1] do_syscall_64+0xc6/0x1e0 [ 51.018238][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.018647][ C1] IN-SOFTIRQ-W at: [ 51.018759][ C1] __lock_acquire+0x797/0x1570 [ 51.018938][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.019121][ C1] _raw_spin_lock+0x30/0x40 [ 51.019409][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.019663][ C1] call_timer_fn+0x13b/0x230 [ 51.019839][ C1] __run_timers+0x545/0x810 [ 51.020012][ C1] run_timer_softirq+0xe8/0x1b0 [ 51.020185][ C1] __do_softirq+0x1f8/0x5df [ 51.020365][ C1] irq_exit_rcu+0x97/0xc0 [ 51.020619][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 51.020832][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 51.021029][ C1] default_idle+0xf/0x20 [ 51.021289][ C1] default_idle_call+0x6d/0xb0 [ 51.021462][ C1] cpuidle_idle_call+0x1f4/0x280 [ 51.021625][ C1] do_idle+0xf9/0x160 [ 51.021766][ C1] cpu_startup_entry+0x54/0x60 [ 51.021941][ C1] start_secondary+0x21c/0x2b0 [ 51.022207][ C1] common_startup_64+0x12c/0x138 [ 51.022400][ C1] INITIAL USE at: [ 51.022506][ C1] __lock_acquire+0x797/0x1570 [ 51.022695][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.022959][ C1] _raw_spin_lock_bh+0x38/0x50 [ 51.023128][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 51.023686][ C1] dev_set_mac_address+0x28a/0x410 [ 51.024111][ C1] dev_set_mac_address_user+0x31/0x50 [ 51.024403][ C1] do_setlink+0x17b4/0x21e0 [ 51.024671][ C1] rtnl_setlink+0x1f7/0x310 [ 51.024844][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.025019][ C1] netlink_rcv_skb+0x130/0x360 [ 51.025311][ C1] netlink_unicast+0x449/0x710 [ 51.025479][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.025650][ C1] __sys_sendto+0x37d/0x410 [ 51.025819][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 51.025991][ C1] do_syscall_64+0xc6/0x1e0 [ 51.026259][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.026495][ C1] } [ 51.026561][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 51.026869][ C1] ... acquired at: [ 51.026970][ C1] mark_lock+0x28d/0x3e0 [ 51.027109][ C1] mark_usage+0xd9/0x2a0 [ 51.027348][ C1] __lock_acquire+0x797/0x1570 [ 51.027565][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.027706][ C1] _raw_spin_lock+0x30/0x40 [ 51.027854][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.028145][ C1] call_timer_fn+0x13b/0x230 [ 51.028371][ C1] __run_timers+0x545/0x810 [ 51.028508][ C1] run_timer_softirq+0xe8/0x1b0 [ 51.028647][ C1] __do_softirq+0x1f8/0x5df [ 51.028783][ C1] irq_exit_rcu+0x97/0xc0 [ 51.028919][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 51.029176][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 51.029353][ C1] default_idle+0xf/0x20 [ 51.029497][ C1] default_idle_call+0x6d/0xb0 [ 51.029635][ C1] cpuidle_idle_call+0x1f4/0x280 [ 51.029775][ C1] do_idle+0xf9/0x160 [ 51.029879][ C1] cpu_startup_entry+0x54/0x60 [ 51.030011][ C1] start_secondary+0x21c/0x2b0 [ 51.030147][ C1] common_startup_64+0x12c/0x138 [ 51.030329][ C1] [ 51.030410][ C1] [ 51.030410][ C1] stack backtrace: [ 51.030584][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 51.030795][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 51.031095][ C1] Call Trace: [ 51.031200][ C1] [ 51.031284][ C1] dump_stack_lvl+0x82/0xd0 [ 51.031532][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 51.031709][ C1] ? common_startup_64+0x12c/0x138 [ 51.031847][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 51.032020][ C1] ? __pfx_usage_skip+0x10/0x10 [ 51.032241][ C1] ? __pfx_usage_match+0x10/0x10 [ 51.032388][ C1] ? arch_stack_walk+0x8c/0xf0 [ 51.032528][ C1] mark_lock_irq+0x4cd/0xa10 [ 51.032674][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 51.032811][ C1] ? stack_trace_save+0x94/0xd0 [ 51.032948][ C1] ? save_trace+0x8f/0x5b0 [ 51.033085][ C1] mark_lock+0x28d/0x3e0 [ 51.033191][ C1] mark_usage+0xd9/0x2a0 [ 51.033312][ C1] __lock_acquire+0x797/0x1570 [ 51.033454][ C1] ? trace_rcu_dyntick+0x112/0x180 [ 51.033593][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 51.033868][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.034093][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.034432][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 51.034567][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 51.034738][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.034947][ C1] ? lock_acquire+0x32/0xc0 [ 51.035078][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.035295][ C1] _raw_spin_lock+0x30/0x40 [ 51.035432][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.035637][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.035842][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 51.036167][ C1] call_timer_fn+0x13b/0x230 [ 51.036352][ C1] ? call_timer_fn+0xe8/0x230 [ 51.036584][ C1] ? call_timer_fn+0xe8/0x230 [ 51.036719][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 51.036857][ C1] ? mark_lock+0x38/0x3e0 [ 51.037081][ C1] __run_timers+0x545/0x810 [ 51.037295][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 51.037535][ C1] ? __pfx___run_timers+0x10/0x10 [ 51.037680][ C1] ? do_raw_spin_lock+0x131/0x270 [ 51.037918][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 51.038060][ C1] ? lock_acquire+0x32/0xc0 [ 51.038385][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 51.038522][ C1] run_timer_softirq+0xe8/0x1b0 [ 51.038654][ C1] __do_softirq+0x1f8/0x5df [ 51.038796][ C1] irq_exit_rcu+0x97/0xc0 [ 51.038980][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 51.039119][ C1] [ 51.039191][ C1] [ 51.039260][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 51.039439][ C1] RIP: 0010:default_idle+0xf/0x20 [ 51.039663][ C1] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d a3 30 35 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 51.040151][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 51.040421][ C1] RAX: 00000000000fb593 RBX: 1ffff92000029fc1 RCX: ffffffffa790e9d5 [ 51.040625][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa52aa4a4 [ 51.040824][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 51.041034][ C1] R10: ffff8880360b84e3 R11: ffff8880360bdc80 R12: 0000000000000000 [ 51.041316][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 51.041531][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 51.041748][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 51.041893][ C1] default_idle_call+0x6d/0xb0 [ 51.042029][ C1] cpuidle_idle_call+0x1f4/0x280 [ 51.042255][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 51.042404][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 51.042547][ C1] do_idle+0xf9/0x160 [ 51.042650][ C1] cpu_startup_entry+0x54/0x60 [ 51.042785][ C1] start_secondary+0x21c/0x2b0 [ 51.042925][ C1] ? __pfx_start_secondary+0x10/0x10 [ 51.043064][ C1] common_startup_64+0x12c/0x138 [ 51.043204][ C1] [ 62.968428][ T448] br11: port 2(veth2.11) entered disabled state [ 62.968870][ T448] br11: port 1(veth1.11) entered disabled state [ 63.068924][ T449] br10: port 2(veth2.10) entered disabled state [ 63.069400][ T449] br10: port 1(veth1.10) entered disabled state [ 63.264757][ T451] veth2.11: left allmulticast mode [ 63.264956][ T451] veth2.11: left promiscuous mode [ 63.265245][ T451] br11: port 2(veth2.11) entered disabled state [ 63.508963][ T453] veth2: left allmulticast mode [ 63.509176][ T453] veth2: left promiscuous mode [ 63.613236][ T456] veth2.10: left allmulticast mode [ 63.613406][ T456] veth2.10: left promiscuous mode [ 63.613677][ T456] br10: port 2(veth2.10) entered disabled state [ 64.150600][ T461] veth1.11: left allmulticast mode [ 64.150855][ T461] veth1.11: left promiscuous mode [ 64.151987][ T461] br11: port 1(veth1.11) entered disabled state [ 64.388058][ T463] veth1: left allmulticast mode [ 64.388303][ T463] veth1: left promiscuous mode [ 64.491730][ T464] veth1.10: left allmulticast mode [ 64.491900][ T464] veth1.10: left promiscuous mode [ 64.492176][ T464] br10: port 1(veth1.10) entered disabled state