[ 30.468754][ T305] br1: port 1(veth1) entered blocking state [ 30.469315][ T305] br1: port 1(veth1) entered disabled state [ 30.469622][ T305] veth1: entered allmulticast mode [ 30.472178][ T305] veth1: entered promiscuous mode [ 30.595207][ T63] br1: port 1(veth1) entered blocking state [ 30.595607][ T63] br1: port 1(veth1) entered forwarding state [ 30.724423][ T307] br1: port 2(veth2) entered blocking state [ 30.724716][ T307] br1: port 2(veth2) entered disabled state [ 30.724981][ T307] veth2: entered allmulticast mode [ 30.726835][ T307] veth2: entered promiscuous mode [ 30.844798][ T49] br1: port 2(veth2) entered blocking state [ 30.845090][ T49] br1: port 2(veth2) entered forwarding state [ 31.188372][ T311] 8021q: 802.1Q VLAN Support v1.8 [ 32.182121][ T321] GACT probability NOT on [ 40.881801][ T362] Mirror/redirect action on [ 40.897038][ T361] tc (361) used greatest stack depth: 23456 bytes left [ 45.903819][ C0] [ 45.903970][ C0] ======================================================== [ 45.904215][ C0] WARNING: possible irq lock inversion dependency detected [ 45.904440][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 45.904588][ C0] -------------------------------------------------------- [ 45.904813][ C0] swapper/0/0 just changed the state of lock: [ 45.904999][ C0] ffff88800744ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.905387][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 45.905637][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 45.905642][ C0] [ 45.905642][ C0] [ 45.905642][ C0] and interrupts could create inverse lock ordering between them. [ 45.905642][ C0] [ 45.906205][ C0] [ 45.906205][ C0] other info that might help us debug this: [ 45.906423][ C0] Chain exists of: [ 45.906423][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 45.906423][ C0] [ 45.906769][ C0] Possible interrupt unsafe locking scenario: [ 45.906769][ C0] [ 45.907000][ C0] CPU0 CPU1 [ 45.907147][ C0] ---- ---- [ 45.907296][ C0] lock(&p->alloc_lock); [ 45.907413][ C0] local_irq_disable(); [ 45.907606][ C0] lock(&br->lock); [ 45.907798][ C0] lock(lweventlist_lock); [ 45.907989][ C0] [ 45.908103][ C0] lock(&br->lock); [ 45.908218][ C0] [ 45.908218][ C0] *** DEADLOCK *** [ 45.908218][ C0] [ 45.908449][ C0] 1 lock held by swapper/0/0: [ 45.908628][ C0] #0: ffffc90000007b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 45.908998][ C0] [ 45.908998][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 45.909258][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 45.909414][ C0] HARDIRQ-ON-W at: [ 45.909542][ C0] __lock_acquire+0x797/0x1570 [ 45.909755][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.909947][ C0] _raw_spin_lock+0x30/0x40 [ 45.910157][ C0] set_mems_allowed+0x1d/0x210 [ 45.910375][ C0] kernel_init_freeable+0x72/0x310 [ 45.910568][ C0] kernel_init+0x20/0x200 [ 45.910784][ C0] ret_from_fork+0x31/0x70 [ 45.910975][ C0] ret_from_fork_asm+0x1a/0x30 [ 45.911180][ C0] SOFTIRQ-ON-W at: [ 45.911292][ C0] __lock_acquire+0x797/0x1570 [ 45.911489][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.911701][ C0] _raw_spin_lock+0x30/0x40 [ 45.911892][ C0] set_mems_allowed+0x1d/0x210 [ 45.912120][ C0] kernel_init_freeable+0x72/0x310 [ 45.912328][ C0] kernel_init+0x20/0x200 [ 45.912517][ C0] ret_from_fork+0x31/0x70 [ 45.912723][ C0] ret_from_fork_asm+0x1a/0x30 [ 45.912915][ C0] INITIAL USE at: [ 45.913029][ C0] __lock_acquire+0x797/0x1570 [ 45.913217][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.913405][ C0] _raw_spin_lock+0x30/0x40 [ 45.913610][ C0] set_mems_allowed+0x1d/0x210 [ 45.913800][ C0] kernel_init_freeable+0x72/0x310 [ 45.913989][ C0] kernel_init+0x20/0x200 [ 45.914176][ C0] ret_from_fork+0x31/0x70 [ 45.914368][ C0] ret_from_fork_asm+0x1a/0x30 [ 45.914556][ C0] } [ 45.914638][ C0] ... key at: [] __key.387+0x0/0x40 [ 45.914871][ C0] ... acquired at: [ 45.914985][ C0] __lock_acquire+0xaf0/0x1570 [ 45.915144][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.915295][ C0] _raw_spin_lock+0x30/0x40 [ 45.915445][ C0] __get_task_comm+0x27/0x70 [ 45.915597][ C0] ref_tracker_alloc+0x2ee/0x490 [ 45.915748][ C0] linkwatch_fire_event+0x196/0x200 [ 45.915900][ C0] veth_newlink+0x367/0x830 [veth] [ 45.916059][ C0] rtnl_newlink_create+0x341/0x850 [ 45.916235][ C0] __rtnl_newlink+0xac9/0xd80 [ 45.916391][ C0] rtnl_newlink+0x63/0xa0 [ 45.916568][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.916747][ C0] netlink_rcv_skb+0x130/0x360 [ 45.916898][ C0] netlink_unicast+0x449/0x710 [ 45.917069][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.917218][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 45.917391][ C0] ___sys_sendmsg+0xee/0x170 [ 45.917541][ C0] __sys_sendmsg+0xcd/0x170 [ 45.917722][ C0] do_syscall_64+0xc6/0x1e0 [ 45.917876][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.918064][ C0] [ 45.918141][ C0] -> (lweventlist_lock){....}-{2:2} { [ 45.918297][ C0] INITIAL USE at: [ 45.918411][ C0] __lock_acquire+0x797/0x1570 [ 45.918632][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.918820][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.919035][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 45.919224][ C0] rtnl_getlink+0x4c9/0x970 [ 45.919425][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.919611][ C0] netlink_rcv_skb+0x130/0x360 [ 45.919801][ C0] netlink_unicast+0x449/0x710 [ 45.919989][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.920181][ C0] __sys_sendto+0x37d/0x410 [ 45.920372][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 45.920560][ C0] do_syscall_64+0xc6/0x1e0 [ 45.920746][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.920975][ C0] } [ 45.921051][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 45.921284][ C0] ... acquired at: [ 45.921395][ C0] __lock_acquire+0xaf0/0x1570 [ 45.921553][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.921706][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.921861][ C0] linkwatch_fire_event+0x74/0x200 [ 45.922016][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 45.922252][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 45.922474][ C0] dev_set_mac_address+0x28a/0x410 [ 45.922637][ C0] dev_set_mac_address_user+0x31/0x50 [ 45.922786][ C0] do_setlink+0x17b4/0x21e0 [ 45.922939][ C0] rtnl_setlink+0x1f7/0x310 [ 45.923095][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.923244][ C0] netlink_rcv_skb+0x130/0x360 [ 45.923398][ C0] netlink_unicast+0x449/0x710 [ 45.923548][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.923766][ C0] __sys_sendto+0x37d/0x410 [ 45.923925][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 45.924075][ C0] do_syscall_64+0xc6/0x1e0 [ 45.924228][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.924417][ C0] [ 45.924493][ C0] -> (&br->lock){+.-.}-{2:2} { [ 45.924646][ C0] HARDIRQ-ON-W at: [ 45.924759][ C0] __lock_acquire+0x797/0x1570 [ 45.924949][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.925142][ C0] _raw_spin_lock_bh+0x38/0x50 [ 45.925339][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 45.925629][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 45.925918][ C0] br_changelink+0x36c/0x1360 [bridge] [ 45.926145][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 45.926382][ C0] rtnl_newlink_create+0x341/0x850 [ 45.926579][ C0] __rtnl_newlink+0xac9/0xd80 [ 45.926794][ C0] rtnl_newlink+0x63/0xa0 [ 45.927000][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.927198][ C0] netlink_rcv_skb+0x130/0x360 [ 45.927398][ C0] netlink_unicast+0x449/0x710 [ 45.927616][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.927809][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 45.928024][ C0] ___sys_sendmsg+0xee/0x170 [ 45.928239][ C0] __sys_sendmsg+0xcd/0x170 [ 45.928436][ C0] do_syscall_64+0xc6/0x1e0 [ 45.928626][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.928861][ C0] IN-SOFTIRQ-W at: [ 45.928994][ C0] __lock_acquire+0x797/0x1570 [ 45.929194][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.929399][ C0] _raw_spin_lock+0x30/0x40 [ 45.929601][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.929873][ C0] call_timer_fn+0x13b/0x230 [ 45.930064][ C0] __run_timers+0x545/0x810 [ 45.930253][ C0] timer_expire_remote+0x9b/0xe0 [ 45.930442][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 45.930636][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.930823][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 45.931009][ C0] __do_softirq+0x1f8/0x5df [ 45.931196][ C0] irq_exit_rcu+0x97/0xc0 [ 45.931409][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.931633][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.931861][ C0] default_idle+0xf/0x20 [ 45.932052][ C0] default_idle_call+0x6d/0xb0 [ 45.932243][ C0] cpuidle_idle_call+0x1f4/0x280 [ 45.932456][ C0] do_idle+0xf9/0x160 [ 45.932610][ C0] cpu_startup_entry+0x54/0x60 [ 45.932813][ C0] rest_init+0x14f/0x260 [ 45.933034][ C0] start_kernel+0x318/0x3d0 [ 45.933228][ C0] x86_64_start_reservations+0x18/0x30 [ 45.933437][ C0] x86_64_start_kernel+0xba/0x110 [ 45.933651][ C0] common_startup_64+0x12c/0x138 [ 45.933845][ C0] INITIAL USE at: [ 45.933989][ C0] __lock_acquire+0x797/0x1570 [ 45.934182][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.934400][ C0] _raw_spin_lock_bh+0x38/0x50 [ 45.934607][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 45.934902][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 45.935168][ C0] br_changelink+0x36c/0x1360 [bridge] [ 45.935423][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 45.935659][ C0] rtnl_newlink_create+0x341/0x850 [ 45.935862][ C0] __rtnl_newlink+0xac9/0xd80 [ 45.936067][ C0] rtnl_newlink+0x63/0xa0 [ 45.936277][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.936468][ C0] netlink_rcv_skb+0x130/0x360 [ 45.936670][ C0] netlink_unicast+0x449/0x710 [ 45.936889][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.937193][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 45.937410][ C0] ___sys_sendmsg+0xee/0x170 [ 45.937616][ C0] __sys_sendmsg+0xcd/0x170 [ 45.937823][ C0] do_syscall_64+0xc6/0x1e0 [ 45.938021][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.938274][ C0] } [ 45.938351][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 45.938766][ C0] ... acquired at: [ 45.938878][ C0] mark_lock+0x28d/0x3e0 [ 45.939035][ C0] mark_usage+0xd9/0x2a0 [ 45.939188][ C0] __lock_acquire+0x797/0x1570 [ 45.939343][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.939499][ C0] _raw_spin_lock+0x30/0x40 [ 45.939653][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.939879][ C0] call_timer_fn+0x13b/0x230 [ 45.940142][ C0] __run_timers+0x545/0x810 [ 45.940297][ C0] timer_expire_remote+0x9b/0xe0 [ 45.940447][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 45.940602][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.940753][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 45.940903][ C0] __do_softirq+0x1f8/0x5df [ 45.941051][ C0] irq_exit_rcu+0x97/0xc0 [ 45.941201][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.941487][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.941675][ C0] default_idle+0xf/0x20 [ 45.941825][ C0] default_idle_call+0x6d/0xb0 [ 45.941974][ C0] cpuidle_idle_call+0x1f4/0x280 [ 45.942126][ C0] do_idle+0xf9/0x160 [ 45.942240][ C0] cpu_startup_entry+0x54/0x60 [ 45.942390][ C0] rest_init+0x14f/0x260 [ 45.942540][ C0] start_kernel+0x318/0x3d0 [ 45.942702][ C0] x86_64_start_reservations+0x18/0x30 [ 45.942951][ C0] x86_64_start_kernel+0xba/0x110 [ 45.943101][ C0] common_startup_64+0x12c/0x138 [ 45.943264][ C0] [ 45.943339][ C0] [ 45.943339][ C0] stack backtrace: [ 45.943529][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 45.943771][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.944117][ C0] Call Trace: [ 45.944328][ C0] [ 45.944407][ C0] dump_stack_lvl+0x82/0xd0 [ 45.944563][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 45.944750][ C0] ? common_startup_64+0x12c/0x138 [ 45.944900][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 45.945085][ C0] ? __pfx_usage_skip+0x10/0x10 [ 45.945235][ C0] ? __pfx_usage_match+0x10/0x10 [ 45.945389][ C0] ? arch_stack_walk+0x8c/0xf0 [ 45.945542][ C0] mark_lock_irq+0x4cd/0xa10 [ 45.945790][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 45.945941][ C0] ? stack_trace_save+0x94/0xd0 [ 45.946093][ C0] ? add_chain_cache+0x248/0x8b0 [ 45.946260][ C0] ? save_trace+0x8f/0x5b0 [ 45.946432][ C0] mark_lock+0x28d/0x3e0 [ 45.946549][ C0] mark_usage+0xd9/0x2a0 [ 45.946664][ C0] __lock_acquire+0x797/0x1570 [ 45.946842][ C0] ? __lock_acquire+0xaf0/0x1570 [ 45.947002][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.947288][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.947438][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.947687][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 45.947948][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 45.948106][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.948357][ C0] ? lock_acquire+0x32/0xc0 [ 45.948507][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.948762][ C0] _raw_spin_lock+0x30/0x40 [ 45.948925][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.949162][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.949407][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.949693][ C0] call_timer_fn+0x13b/0x230 [ 45.949853][ C0] ? call_timer_fn+0xe8/0x230 [ 45.950013][ C0] ? call_timer_fn+0xe8/0x230 [ 45.950197][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 45.950347][ C0] ? mark_lock+0x38/0x3e0 [ 45.950485][ C0] __run_timers+0x545/0x810 [ 45.950652][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.951020][ C0] ? __pfx___run_timers+0x10/0x10 [ 45.951197][ C0] ? __lock_release+0x103/0x460 [ 45.951355][ C0] ? do_raw_spin_lock+0x131/0x270 [ 45.951530][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 45.951685][ C0] ? lock_acquire+0x32/0xc0 [ 45.951856][ C0] ? timer_expire_remote+0x93/0xe0 [ 45.952027][ C0] timer_expire_remote+0x9b/0xe0 [ 45.952197][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 45.952351][ C0] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 45.952655][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.952820][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 45.953001][ C0] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 45.953156][ C0] __do_softirq+0x1f8/0x5df [ 45.953323][ C0] irq_exit_rcu+0x97/0xc0 [ 45.953447][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.953608][ C0] [ 45.953701][ C0] [ 45.953779][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.954092][ C0] RIP: 0010:default_idle+0xf/0x20 [ 45.954258][ C0] 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 [ 45.954825][ C0] RSP: 0018:ffffffffadc07e00 EFLAGS: 00000246 [ 45.955045][ C0] RAX: 00000000000a5d33 RBX: 1ffffffff5b80fc2 RCX: ffffffffacd0f9e5 [ 45.955300][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffaa6aa4a4 [ 45.955635][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 45.955868][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 45.956104][ C0] R13: ffffffffadc1d000 R14: dffffc0000000000 R15: 0000000000014770 [ 45.956346][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 45.956503][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 45.956673][ C0] default_idle_call+0x6d/0xb0 [ 45.956825][ C0] cpuidle_idle_call+0x1f4/0x280 [ 45.957087][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 45.957239][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 45.957391][ C0] do_idle+0xf9/0x160 [ 45.957505][ C0] cpu_startup_entry+0x54/0x60 [ 45.957755][ C0] rest_init+0x14f/0x260 [ 45.957875][ C0] start_kernel+0x318/0x3d0 [ 45.958030][ C0] x86_64_start_reservations+0x18/0x30 [ 45.958181][ C0] x86_64_start_kernel+0xba/0x110 [ 45.958356][ C0] common_startup_64+0x12c/0x138 [ 45.958513][ C0] [ 76.611558][ T534] br1: port 1(veth1) entered disabled state [ 76.709525][ T536] br1: port 2(veth2) entered disabled state [ 76.816019][ T537] veth2: left allmulticast mode [ 76.816220][ T537] veth2: left promiscuous mode [ 76.816494][ T537] br1: port 2(veth2) entered disabled state [ 76.817551][ T537] veth1: left allmulticast mode [ 76.818073][ T537] veth1: left promiscuous mode [ 76.818339][ T537] br1: port 1(veth1) entered disabled state