[ 27.401040][ T283] br0: port 1(veth1) entered blocking state [ 27.401473][ T283] br0: port 1(veth1) entered disabled state [ 27.401833][ T283] veth1: entered allmulticast mode [ 27.404045][ T283] veth1: entered promiscuous mode [ 27.551060][ T285] br0: port 2(veth2) entered blocking state [ 27.551531][ T285] br0: port 2(veth2) entered disabled state [ 27.552345][ T285] veth2: entered allmulticast mode [ 27.554369][ T285] veth2: entered promiscuous mode [ 27.788844][ T7] br0: port 1(veth1) entered blocking state [ 27.789171][ T7] br0: port 1(veth1) entered forwarding state [ 27.915857][ T50] br0: port 2(veth2) entered blocking state [ 27.916139][ T50] br0: port 2(veth2) entered forwarding state [ 36.927325][ T315] veth0: entered promiscuous mode [ 37.499516][ T321] GACT probability NOT on [ 42.806742][ C1] [ 42.806909][ C1] ======================================================== [ 42.807124][ C1] WARNING: possible irq lock inversion dependency detected [ 42.807333][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 42.807475][ C1] -------------------------------------------------------- [ 42.807674][ C1] swapper/1/0 just changed the state of lock: [ 42.807854][ C1] ffff88800614ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 42.808240][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 42.808442][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 42.808447][ C1] [ 42.808447][ C1] [ 42.808447][ C1] and interrupts could create inverse lock ordering between them. [ 42.808447][ C1] [ 42.808996][ C1] [ 42.808996][ C1] other info that might help us debug this: [ 42.809201][ C1] Chain exists of: [ 42.809201][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 42.809201][ C1] [ 42.809573][ C1] Possible interrupt unsafe locking scenario: [ 42.809573][ C1] [ 42.809777][ C1] CPU0 CPU1 [ 42.809917][ C1] ---- ---- [ 42.810053][ C1] lock(&p->alloc_lock); [ 42.810160][ C1] local_irq_disable(); [ 42.810344][ C1] lock(&br->lock); [ 42.810520][ C1] lock(lweventlist_lock); [ 42.810695][ C1] [ 42.810827][ C1] lock(&br->lock); [ 42.810955][ C1] [ 42.810955][ C1] *** DEADLOCK *** [ 42.810955][ C1] [ 42.811158][ C1] 1 lock held by swapper/1/0: [ 42.811297][ C1] #0: ffffc900001d8b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 42.811597][ C1] [ 42.811597][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 42.811846][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 42.811990][ C1] HARDIRQ-ON-W at: [ 42.812100][ C1] __lock_acquire+0x797/0x1570 [ 42.812282][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.812456][ C1] _raw_spin_lock+0x30/0x40 [ 42.812633][ C1] set_mems_allowed+0x1d/0x210 [ 42.812810][ C1] kernel_init_freeable+0x72/0x310 [ 42.812988][ C1] kernel_init+0x20/0x200 [ 42.813174][ C1] ret_from_fork+0x31/0x70 [ 42.813353][ C1] ret_from_fork_asm+0x1a/0x30 [ 42.813527][ C1] SOFTIRQ-ON-W at: [ 42.813630][ C1] __lock_acquire+0x797/0x1570 [ 42.813805][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.813990][ C1] _raw_spin_lock+0x30/0x40 [ 42.814166][ C1] set_mems_allowed+0x1d/0x210 [ 42.814337][ C1] kernel_init_freeable+0x72/0x310 [ 42.814509][ C1] kernel_init+0x20/0x200 [ 42.814687][ C1] ret_from_fork+0x31/0x70 [ 42.814863][ C1] ret_from_fork_asm+0x1a/0x30 [ 42.815042][ C1] INITIAL USE at: [ 42.815154][ C1] __lock_acquire+0x797/0x1570 [ 42.815326][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.815499][ C1] _raw_spin_lock+0x30/0x40 [ 42.815672][ C1] set_mems_allowed+0x1d/0x210 [ 42.815847][ C1] kernel_init_freeable+0x72/0x310 [ 42.816022][ C1] kernel_init+0x20/0x200 [ 42.816200][ C1] ret_from_fork+0x31/0x70 [ 42.816377][ C1] ret_from_fork_asm+0x1a/0x30 [ 42.816556][ C1] } [ 42.816627][ C1] ... key at: [] __key.387+0x0/0x40 [ 42.816838][ C1] ... acquired at: [ 42.816947][ C1] __lock_acquire+0xaf0/0x1570 [ 42.817089][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.817228][ C1] _raw_spin_lock+0x30/0x40 [ 42.817369][ C1] __get_task_comm+0x27/0x70 [ 42.817507][ C1] ref_tracker_alloc+0x2ee/0x490 [ 42.817649][ C1] linkwatch_fire_event+0x196/0x200 [ 42.817788][ C1] veth_newlink+0x367/0x830 [veth] [ 42.817946][ C1] rtnl_newlink_create+0x341/0x850 [ 42.818082][ C1] __rtnl_newlink+0xac9/0xd80 [ 42.818221][ C1] rtnl_newlink+0x63/0xa0 [ 42.818357][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 42.818498][ C1] netlink_rcv_skb+0x130/0x360 [ 42.818636][ C1] netlink_unicast+0x449/0x710 [ 42.818776][ C1] netlink_sendmsg+0x723/0xbe0 [ 42.818913][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 42.819053][ C1] ___sys_sendmsg+0xee/0x170 [ 42.819189][ C1] __sys_sendmsg+0xcd/0x170 [ 42.819346][ C1] do_syscall_64+0xc6/0x1e0 [ 42.819510][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 42.819681][ C1] [ 42.819758][ C1] -> (lweventlist_lock){....}-{2:2} { [ 42.819901][ C1] INITIAL USE at: [ 42.820008][ C1] __lock_acquire+0x797/0x1570 [ 42.820187][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.820364][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 42.820536][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 42.820714][ C1] rtnl_getlink+0x4c9/0x970 [ 42.820887][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 42.821059][ C1] netlink_rcv_skb+0x130/0x360 [ 42.821233][ C1] netlink_unicast+0x449/0x710 [ 42.821406][ C1] netlink_sendmsg+0x723/0xbe0 [ 42.821579][ C1] __sys_sendto+0x37d/0x410 [ 42.821759][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 42.821931][ C1] do_syscall_64+0xc6/0x1e0 [ 42.822103][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 42.822309][ C1] } [ 42.822380][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 42.822597][ C1] ... acquired at: [ 42.822708][ C1] __lock_acquire+0xaf0/0x1570 [ 42.822850][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.822990][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 42.823130][ C1] linkwatch_fire_event+0x74/0x200 [ 42.823267][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 42.823477][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 42.823685][ C1] dev_set_mac_address+0x28a/0x410 [ 42.823823][ C1] dev_set_mac_address_user+0x31/0x50 [ 42.823967][ C1] do_setlink+0x17b4/0x21e0 [ 42.824112][ C1] rtnl_setlink+0x1f7/0x310 [ 42.824252][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 42.824389][ C1] netlink_rcv_skb+0x130/0x360 [ 42.824525][ C1] netlink_unicast+0x449/0x710 [ 42.824663][ C1] netlink_sendmsg+0x723/0xbe0 [ 42.824804][ C1] __sys_sendto+0x37d/0x410 [ 42.824944][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 42.825087][ C1] do_syscall_64+0xc6/0x1e0 [ 42.825238][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 42.825425][ C1] [ 42.825494][ C1] -> (&br->lock){+.-.}-{2:2} { [ 42.825636][ C1] HARDIRQ-ON-W at: [ 42.825740][ C1] __lock_acquire+0x797/0x1570 [ 42.825914][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.826091][ C1] _raw_spin_lock_bh+0x38/0x50 [ 42.826265][ C1] br_set_ageing_time+0x2d/0xf0 [bridge] [ 42.826515][ C1] br_changelink+0x231/0x1360 [bridge] [ 42.826728][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 42.826949][ C1] rtnl_newlink_create+0x341/0x850 [ 42.827126][ C1] __rtnl_newlink+0xac9/0xd80 [ 42.827300][ C1] rtnl_newlink+0x63/0xa0 [ 42.827473][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 42.827651][ C1] netlink_rcv_skb+0x130/0x360 [ 42.827826][ C1] netlink_unicast+0x449/0x710 [ 42.828004][ C1] netlink_sendmsg+0x723/0xbe0 [ 42.828177][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 42.828354][ C1] ___sys_sendmsg+0xee/0x170 [ 42.828531][ C1] __sys_sendmsg+0xcd/0x170 [ 42.828704][ C1] do_syscall_64+0xc6/0x1e0 [ 42.828893][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 42.829106][ C1] IN-SOFTIRQ-W at: [ 42.829214][ C1] __lock_acquire+0x797/0x1570 [ 42.829430][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.829604][ C1] _raw_spin_lock+0x30/0x40 [ 42.829784][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 42.830035][ C1] call_timer_fn+0x13b/0x230 [ 42.830212][ C1] __run_timers+0x545/0x810 [ 42.830390][ C1] timer_expire_remote+0x9b/0xe0 [ 42.830570][ C1] tmigr_handle_remote_cpu+0x270/0x430 [ 42.830745][ C1] tmigr_handle_remote_up+0x19f/0x2e0 [ 42.830919][ C1] tmigr_handle_remote+0x21d/0x3a0 [ 42.831099][ C1] __do_softirq+0x1f8/0x5df [ 42.831273][ C1] irq_exit_rcu+0x97/0xc0 [ 42.831448][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 42.831659][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 42.831871][ C1] default_idle+0xf/0x20 [ 42.832045][ C1] default_idle_call+0x6d/0xb0 [ 42.832218][ C1] cpuidle_idle_call+0x1f4/0x280 [ 42.832395][ C1] do_idle+0xf9/0x160 [ 42.832533][ C1] cpu_startup_entry+0x54/0x60 [ 42.832705][ C1] start_secondary+0x21c/0x2b0 [ 42.832880][ C1] common_startup_64+0x12c/0x138 [ 42.833063][ C1] INITIAL USE at: [ 42.833167][ C1] __lock_acquire+0x797/0x1570 [ 42.833343][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.833518][ C1] _raw_spin_lock_bh+0x38/0x50 [ 42.833691][ C1] br_set_ageing_time+0x2d/0xf0 [bridge] [ 42.833935][ C1] br_changelink+0x231/0x1360 [bridge] [ 42.834146][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 42.834354][ C1] rtnl_newlink_create+0x341/0x850 [ 42.834534][ C1] __rtnl_newlink+0xac9/0xd80 [ 42.834709][ C1] rtnl_newlink+0x63/0xa0 [ 42.834884][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 42.835057][ C1] netlink_rcv_skb+0x130/0x360 [ 42.835228][ C1] netlink_unicast+0x449/0x710 [ 42.835401][ C1] netlink_sendmsg+0x723/0xbe0 [ 42.835571][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 42.835750][ C1] ___sys_sendmsg+0xee/0x170 [ 42.835926][ C1] __sys_sendmsg+0xcd/0x170 [ 42.836098][ C1] do_syscall_64+0xc6/0x1e0 [ 42.836271][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 42.836478][ C1] } [ 42.836549][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 42.836819][ C1] ... acquired at: [ 42.836931][ C1] mark_lock+0x28d/0x3e0 [ 42.837070][ C1] mark_usage+0xd9/0x2a0 [ 42.837296][ C1] __lock_acquire+0x797/0x1570 [ 42.837436][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.837574][ C1] _raw_spin_lock+0x30/0x40 [ 42.837712][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 42.838004][ C1] call_timer_fn+0x13b/0x230 [ 42.838143][ C1] __run_timers+0x545/0x810 [ 42.838285][ C1] timer_expire_remote+0x9b/0xe0 [ 42.838422][ C1] tmigr_handle_remote_cpu+0x270/0x430 [ 42.838640][ C1] tmigr_handle_remote_up+0x19f/0x2e0 [ 42.838778][ C1] tmigr_handle_remote+0x21d/0x3a0 [ 42.838916][ C1] __do_softirq+0x1f8/0x5df [ 42.839053][ C1] irq_exit_rcu+0x97/0xc0 [ 42.839389][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 42.839582][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 42.839755][ C1] default_idle+0xf/0x20 [ 42.839892][ C1] default_idle_call+0x6d/0xb0 [ 42.840108][ C1] cpuidle_idle_call+0x1f4/0x280 [ 42.840243][ C1] do_idle+0xf9/0x160 [ 42.840346][ C1] cpu_startup_entry+0x54/0x60 [ 42.840483][ C1] start_secondary+0x21c/0x2b0 [ 42.840621][ C1] common_startup_64+0x12c/0x138 [ 42.840838][ C1] [ 42.840913][ C1] [ 42.840913][ C1] stack backtrace: [ 42.841082][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 42.841296][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 42.841680][ C1] Call Trace: [ 42.841783][ C1] [ 42.841854][ C1] dump_stack_lvl+0x82/0xd0 [ 42.842075][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 42.842258][ C1] ? common_startup_64+0x12c/0x138 [ 42.842397][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 42.842569][ C1] ? __pfx_usage_skip+0x10/0x10 [ 42.842788][ C1] ? __pfx_usage_match+0x10/0x10 [ 42.842923][ C1] ? arch_stack_walk+0x8c/0xf0 [ 42.843059][ C1] mark_lock_irq+0x4cd/0xa10 [ 42.843198][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 42.843335][ C1] ? stack_trace_save+0x94/0xd0 [ 42.843480][ C1] ? add_chain_cache+0x248/0x8b0 [ 42.843617][ C1] ? save_trace+0x8f/0x5b0 [ 42.843755][ C1] mark_lock+0x28d/0x3e0 [ 42.843861][ C1] mark_usage+0xd9/0x2a0 [ 42.844046][ C1] __lock_acquire+0x797/0x1570 [ 42.844185][ C1] ? __lock_acquire+0xaf0/0x1570 [ 42.844323][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 42.844569][ C1] lock_acquire.part.0+0xeb/0x330 [ 42.844793][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 42.845007][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 42.845144][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 42.845296][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 42.845503][ C1] ? lock_acquire+0x32/0xc0 [ 42.845639][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 42.845845][ C1] _raw_spin_lock+0x30/0x40 [ 42.845990][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 42.846279][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 42.846485][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 42.846724][ C1] call_timer_fn+0x13b/0x230 [ 42.846950][ C1] ? call_timer_fn+0xe8/0x230 [ 42.847087][ C1] ? call_timer_fn+0xe8/0x230 [ 42.847222][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 42.847364][ C1] ? mark_lock+0x38/0x3e0 [ 42.847552][ C1] __run_timers+0x545/0x810 [ 42.847695][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 42.847935][ C1] ? __pfx___run_timers+0x10/0x10 [ 42.848073][ C1] ? __lock_release+0x103/0x460 [ 42.848290][ C1] ? do_raw_spin_lock+0x131/0x270 [ 42.848426][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 42.848562][ C1] ? lock_acquire+0x32/0xc0 [ 42.848699][ C1] ? timer_expire_remote+0x93/0xe0 [ 42.848920][ C1] timer_expire_remote+0x9b/0xe0 [ 42.849055][ C1] tmigr_handle_remote_cpu+0x270/0x430 [ 42.849193][ C1] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 42.849400][ C1] tmigr_handle_remote_up+0x19f/0x2e0 [ 42.849623][ C1] tmigr_handle_remote+0x21d/0x3a0 [ 42.849761][ C1] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 42.849900][ C1] __do_softirq+0x1f8/0x5df [ 42.850042][ C1] irq_exit_rcu+0x97/0xc0 [ 42.850146][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 42.850362][ C1] [ 42.850433][ C1] [ 42.850503][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 42.850674][ C1] RIP: 0010:default_idle+0xf/0x20 [ 42.850820][ 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 93 20 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 [ 42.851395][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000242 [ 42.851663][ C1] RAX: 000000000007f107 RBX: 1ffff92000029fc1 RCX: ffffffff9fd0f9e5 [ 42.851878][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9d6aa4a4 [ 42.852082][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 42.852284][ C1] R10: ffff8880360b84e3 R11: ffff8880360ad9b0 R12: 0000000000000000 [ 42.852493][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 42.852700][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 42.852928][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 42.853065][ C1] default_idle_call+0x6d/0xb0 [ 42.853201][ C1] cpuidle_idle_call+0x1f4/0x280 [ 42.853337][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 42.853486][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 42.853712][ C1] do_idle+0xf9/0x160 [ 42.853818][ C1] cpu_startup_entry+0x54/0x60 [ 42.853956][ C1] start_secondary+0x21c/0x2b0 [ 42.854094][ C1] ? __pfx_start_secondary+0x10/0x10 [ 42.854312][ C1] common_startup_64+0x12c/0x138 [ 42.854452][ C1] [ 64.010179][ T349] veth0: left promiscuous mode [ 64.325577][ T353] veth3: entered promiscuous mode [ 66.152105][ T362] veth3: left promiscuous mode [ 66.343069][ T364] veth3: entered promiscuous mode [ 68.179510][ T373] veth3: left promiscuous mode [ 68.367779][ T376] veth3: entered promiscuous mode [ 70.228868][ T385] veth3: left promiscuous mode [ 70.425914][ T387] veth3: entered promiscuous mode [ 72.269666][ T396] veth3: left promiscuous mode [ 72.372399][ T398] br0: port 2(veth2) entered disabled state [ 72.470428][ T399] br0: port 1(veth1) entered disabled state [ 72.568546][ T400] veth2: left allmulticast mode [ 72.568759][ T400] veth2: left promiscuous mode [ 72.569089][ T400] br0: port 2(veth2) entered disabled state [ 72.570181][ T400] veth1: left allmulticast mode [ 72.570370][ T400] veth1: left promiscuous mode [ 72.570712][ T400] br0: port 1(veth1) entered disabled state