[ 30.123969][ T287] br0: port 1(veth1) entered blocking state [ 30.124415][ T287] br0: port 1(veth1) entered disabled state [ 30.124806][ T287] veth1: entered allmulticast mode [ 30.126850][ T287] veth1: entered promiscuous mode [ 30.250356][ T289] br0: port 2(veth2) entered blocking state [ 30.250641][ T289] br0: port 2(veth2) entered disabled state [ 30.250897][ T289] veth2: entered allmulticast mode [ 30.252805][ T289] veth2: entered promiscuous mode [ 30.488533][ T51] br0: port 1(veth1) entered blocking state [ 30.488884][ T51] br0: port 1(veth1) entered forwarding state [ 30.615935][ T51] br0: port 2(veth2) entered blocking state [ 30.616191][ T51] br0: port 2(veth2) entered forwarding state [ 39.669342][ T319] veth0: entered promiscuous mode [ 40.267376][ T325] GACT probability NOT on [ 45.872810][ C3] [ 45.872977][ C3] ======================================================== [ 45.873221][ C3] WARNING: possible irq lock inversion dependency detected [ 45.873449][ C3] 6.9.0-rc1-virtme #1 Not tainted [ 45.873629][ C3] -------------------------------------------------------- [ 45.873850][ C3] swapper/3/0 just changed the state of lock: [ 45.874033][ C3] ffff888005632c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.874434][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 45.874661][ C3] (&p->alloc_lock){+.+.}-{2:2} [ 45.874665][ C3] [ 45.874665][ C3] [ 45.874665][ C3] and interrupts could create inverse lock ordering between them. [ 45.874665][ C3] [ 45.875226][ C3] [ 45.875226][ C3] other info that might help us debug this: [ 45.875453][ C3] Chain exists of: [ 45.875453][ C3] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 45.875453][ C3] [ 45.875783][ C3] Possible interrupt unsafe locking scenario: [ 45.875783][ C3] [ 45.875994][ C3] CPU0 CPU1 [ 45.876162][ C3] ---- ---- [ 45.876302][ C3] lock(&p->alloc_lock); [ 45.876427][ C3] local_irq_disable(); [ 45.876598][ C3] lock(&br->lock); [ 45.876788][ C3] lock(lweventlist_lock); [ 45.876991][ C3] [ 45.877107][ C3] lock(&br->lock); [ 45.877214][ C3] [ 45.877214][ C3] *** DEADLOCK *** [ 45.877214][ C3] [ 45.877461][ C3] 1 lock held by swapper/3/0: [ 45.877627][ C3] #0: ffffc90000288b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 45.877939][ C3] [ 45.877939][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 45.878219][ C3] -> (&p->alloc_lock){+.+.}-{2:2} { [ 45.878386][ C3] HARDIRQ-ON-W at: [ 45.878497][ C3] __lock_acquire+0x797/0x1570 [ 45.878689][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.878879][ C3] _raw_spin_lock+0x30/0x40 [ 45.879100][ C3] set_mems_allowed+0x1d/0x210 [ 45.879305][ C3] kernel_init_freeable+0x72/0x310 [ 45.879506][ C3] kernel_init+0x20/0x200 [ 45.879695][ C3] ret_from_fork+0x31/0x70 [ 45.879898][ C3] ret_from_fork_asm+0x1a/0x30 [ 45.880079][ C3] SOFTIRQ-ON-W at: [ 45.880184][ C3] __lock_acquire+0x797/0x1570 [ 45.880363][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.880574][ C3] _raw_spin_lock+0x30/0x40 [ 45.880773][ C3] set_mems_allowed+0x1d/0x210 [ 45.880972][ C3] kernel_init_freeable+0x72/0x310 [ 45.881192][ C3] kernel_init+0x20/0x200 [ 45.881385][ C3] ret_from_fork+0x31/0x70 [ 45.881591][ C3] ret_from_fork_asm+0x1a/0x30 [ 45.881779][ C3] INITIAL USE at: [ 45.881898][ C3] __lock_acquire+0x797/0x1570 [ 45.882104][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.882294][ C3] _raw_spin_lock+0x30/0x40 [ 45.882494][ C3] set_mems_allowed+0x1d/0x210 [ 45.882668][ C3] kernel_init_freeable+0x72/0x310 [ 45.882860][ C3] kernel_init+0x20/0x200 [ 45.883069][ C3] ret_from_fork+0x31/0x70 [ 45.883249][ C3] ret_from_fork_asm+0x1a/0x30 [ 45.883447][ C3] } [ 45.883528][ C3] ... key at: [] __key.387+0x0/0x40 [ 45.883756][ C3] ... acquired at: [ 45.883873][ C3] __lock_acquire+0xaf0/0x1570 [ 45.884034][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.884181][ C3] _raw_spin_lock+0x30/0x40 [ 45.884348][ C3] __get_task_comm+0x27/0x70 [ 45.884491][ C3] ref_tracker_alloc+0x2ee/0x490 [ 45.884638][ C3] linkwatch_fire_event+0x196/0x200 [ 45.884785][ C3] veth_newlink+0x367/0x830 [veth] [ 45.884937][ C3] rtnl_newlink_create+0x341/0x850 [ 45.885077][ C3] __rtnl_newlink+0xac9/0xd80 [ 45.885218][ C3] rtnl_newlink+0x63/0xa0 [ 45.885360][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.885504][ C3] netlink_rcv_skb+0x130/0x360 [ 45.885651][ C3] netlink_unicast+0x449/0x710 [ 45.885791][ C3] netlink_sendmsg+0x723/0xbe0 [ 45.885936][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 45.886078][ C3] ___sys_sendmsg+0xee/0x170 [ 45.886219][ C3] __sys_sendmsg+0xcd/0x170 [ 45.886358][ C3] do_syscall_64+0xc6/0x1e0 [ 45.886506][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.886686][ C3] [ 45.886760][ C3] -> (lweventlist_lock){....}-{2:2} { [ 45.886905][ C3] INITIAL USE at: [ 45.887020][ C3] __lock_acquire+0x797/0x1570 [ 45.887217][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.887401][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.887609][ C3] linkwatch_sync_dev+0x29/0x1f0 [ 45.887796][ C3] rtnl_getlink+0x4c9/0x970 [ 45.887981][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.888168][ C3] netlink_rcv_skb+0x130/0x360 [ 45.888349][ C3] netlink_unicast+0x449/0x710 [ 45.888538][ C3] netlink_sendmsg+0x723/0xbe0 [ 45.888726][ C3] __sys_sendto+0x37d/0x410 [ 45.888904][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 45.889089][ C3] do_syscall_64+0xc6/0x1e0 [ 45.889274][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.889503][ C3] } [ 45.889574][ C3] ... key at: [] lweventlist_lock+0x18/0x60 [ 45.889815][ C3] ... acquired at: [ 45.889926][ C3] __lock_acquire+0xaf0/0x1570 [ 45.890082][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.890222][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.890366][ C3] linkwatch_fire_event+0x74/0x200 [ 45.890506][ C3] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 45.890721][ C3] br_set_mac_address+0x1f3/0x260 [bridge] [ 45.890946][ C3] dev_set_mac_address+0x28a/0x410 [ 45.891101][ C3] dev_set_mac_address_user+0x31/0x50 [ 45.891266][ C3] do_setlink+0x17b4/0x21e0 [ 45.891407][ C3] rtnl_setlink+0x1f7/0x310 [ 45.891557][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.891705][ C3] netlink_rcv_skb+0x130/0x360 [ 45.891854][ C3] netlink_unicast+0x449/0x710 [ 45.891997][ C3] netlink_sendmsg+0x723/0xbe0 [ 45.892158][ C3] __sys_sendto+0x37d/0x410 [ 45.892320][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 45.892474][ C3] do_syscall_64+0xc6/0x1e0 [ 45.892636][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.892827][ C3] [ 45.892900][ C3] -> (&br->lock){+.-.}-{2:2} { [ 45.893065][ C3] HARDIRQ-ON-W at: [ 45.893186][ C3] __lock_acquire+0x797/0x1570 [ 45.893364][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.893556][ C3] _raw_spin_lock_bh+0x38/0x50 [ 45.893764][ C3] br_set_ageing_time+0x2d/0xf0 [bridge] [ 45.894029][ C3] br_changelink+0x231/0x1360 [bridge] [ 45.894261][ C3] br_dev_newlink+0xa5/0x100 [bridge] [ 45.894494][ C3] rtnl_newlink_create+0x341/0x850 [ 45.894676][ C3] __rtnl_newlink+0xac9/0xd80 [ 45.894863][ C3] rtnl_newlink+0x63/0xa0 [ 45.895064][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.895253][ C3] netlink_rcv_skb+0x130/0x360 [ 45.895428][ C3] netlink_unicast+0x449/0x710 [ 45.895614][ C3] netlink_sendmsg+0x723/0xbe0 [ 45.895806][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 45.896018][ C3] ___sys_sendmsg+0xee/0x170 [ 45.896221][ C3] __sys_sendmsg+0xcd/0x170 [ 45.896410][ C3] do_syscall_64+0xc6/0x1e0 [ 45.896590][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.896804][ C3] IN-SOFTIRQ-W at: [ 45.896917][ C3] __lock_acquire+0x797/0x1570 [ 45.897115][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.897292][ C3] _raw_spin_lock+0x30/0x40 [ 45.897479][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.897746][ C3] call_timer_fn+0x13b/0x230 [ 45.897938][ C3] __run_timers+0x545/0x810 [ 45.898119][ C3] timer_expire_remote+0x9b/0xe0 [ 45.898297][ C3] tmigr_handle_remote_cpu+0x270/0x430 [ 45.898477][ C3] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.898666][ C3] tmigr_handle_remote+0x21d/0x3a0 [ 45.898840][ C3] __do_softirq+0x1f8/0x5df [ 45.899059][ C3] irq_exit_rcu+0x97/0xc0 [ 45.899236][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.899450][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.899664][ C3] default_idle+0xf/0x20 [ 45.899841][ C3] default_idle_call+0x6d/0xb0 [ 45.900028][ C3] cpuidle_idle_call+0x1f4/0x280 [ 45.900209][ C3] do_idle+0xf9/0x160 [ 45.900352][ C3] cpu_startup_entry+0x54/0x60 [ 45.900529][ C3] start_secondary+0x21c/0x2b0 [ 45.900709][ C3] common_startup_64+0x12c/0x138 [ 45.900887][ C3] INITIAL USE at: [ 45.901009][ C3] __lock_acquire+0x797/0x1570 [ 45.901183][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.901379][ C3] _raw_spin_lock_bh+0x38/0x50 [ 45.901565][ C3] br_set_ageing_time+0x2d/0xf0 [bridge] [ 45.901812][ C3] br_changelink+0x231/0x1360 [bridge] [ 45.902036][ C3] br_dev_newlink+0xa5/0x100 [bridge] [ 45.902261][ C3] rtnl_newlink_create+0x341/0x850 [ 45.902444][ C3] __rtnl_newlink+0xac9/0xd80 [ 45.902624][ C3] rtnl_newlink+0x63/0xa0 [ 45.902796][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.902994][ C3] netlink_rcv_skb+0x130/0x360 [ 45.903174][ C3] netlink_unicast+0x449/0x710 [ 45.903346][ C3] netlink_sendmsg+0x723/0xbe0 [ 45.903540][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 45.903722][ C3] ___sys_sendmsg+0xee/0x170 [ 45.903902][ C3] __sys_sendmsg+0xcd/0x170 [ 45.904115][ C3] do_syscall_64+0xc6/0x1e0 [ 45.904290][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.904501][ C3] } [ 45.904579][ C3] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 45.904974][ C3] ... acquired at: [ 45.905079][ C3] mark_lock+0x28d/0x3e0 [ 45.905224][ C3] mark_usage+0xd9/0x2a0 [ 45.905363][ C3] __lock_acquire+0x797/0x1570 [ 45.905588][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.905730][ C3] _raw_spin_lock+0x30/0x40 [ 45.905877][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.906102][ C3] call_timer_fn+0x13b/0x230 [ 45.906324][ C3] __run_timers+0x545/0x810 [ 45.906462][ C3] timer_expire_remote+0x9b/0xe0 [ 45.906599][ C3] tmigr_handle_remote_cpu+0x270/0x430 [ 45.906741][ C3] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.906991][ C3] tmigr_handle_remote+0x21d/0x3a0 [ 45.907131][ C3] __do_softirq+0x1f8/0x5df [ 45.907268][ C3] irq_exit_rcu+0x97/0xc0 [ 45.907415][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.907710][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.907887][ C3] default_idle+0xf/0x20 [ 45.908038][ C3] default_idle_call+0x6d/0xb0 [ 45.908181][ C3] cpuidle_idle_call+0x1f4/0x280 [ 45.908332][ C3] do_idle+0xf9/0x160 [ 45.908441][ C3] cpu_startup_entry+0x54/0x60 [ 45.908582][ C3] start_secondary+0x21c/0x2b0 [ 45.908730][ C3] common_startup_64+0x12c/0x138 [ 45.908874][ C3] [ 45.909037][ C3] [ 45.909037][ C3] stack backtrace: [ 45.909211][ C3] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 6.9.0-rc1-virtme #1 [ 45.909436][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.909843][ C3] Call Trace: [ 45.909957][ C3] [ 45.910037][ C3] dump_stack_lvl+0x82/0xd0 [ 45.910201][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 45.910380][ C3] ? common_startup_64+0x12c/0x138 [ 45.910524][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 45.910702][ C3] ? __pfx_usage_skip+0x10/0x10 [ 45.910849][ C3] ? __pfx_usage_match+0x10/0x10 [ 45.911109][ C3] ? arch_stack_walk+0x8c/0xf0 [ 45.911258][ C3] mark_lock_irq+0x4cd/0xa10 [ 45.911409][ C3] ? __pfx_mark_lock_irq+0x10/0x10 [ 45.911558][ C3] ? stack_trace_save+0x94/0xd0 [ 45.911791][ C3] ? add_chain_cache+0x248/0x8b0 [ 45.911952][ C3] ? save_trace+0x8f/0x5b0 [ 45.912113][ C3] mark_lock+0x28d/0x3e0 [ 45.912228][ C3] mark_usage+0xd9/0x2a0 [ 45.912344][ C3] __lock_acquire+0x797/0x1570 [ 45.912575][ C3] ? __lock_acquire+0xaf0/0x1570 [ 45.912721][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.912989][ C3] lock_acquire.part.0+0xeb/0x330 [ 45.913137][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.913442][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 45.913591][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 45.913740][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.913958][ C3] ? lock_acquire+0x32/0xc0 [ 45.914183][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.914403][ C3] _raw_spin_lock+0x30/0x40 [ 45.914542][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.914833][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.915072][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.915318][ C3] call_timer_fn+0x13b/0x230 [ 45.915463][ C3] ? call_timer_fn+0xe8/0x230 [ 45.915781][ C3] ? call_timer_fn+0xe8/0x230 [ 45.915929][ C3] ? __pfx_call_timer_fn+0x10/0x10 [ 45.916073][ C3] ? mark_lock+0x38/0x3e0 [ 45.916186][ C3] __run_timers+0x545/0x810 [ 45.916335][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.916587][ C3] ? __pfx___run_timers+0x10/0x10 [ 45.916734][ C3] ? __lock_release+0x103/0x460 [ 45.916875][ C3] ? do_raw_spin_lock+0x131/0x270 [ 45.917106][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 45.917251][ C3] ? lock_acquire+0x32/0xc0 [ 45.917391][ C3] ? timer_expire_remote+0x93/0xe0 [ 45.917543][ C3] timer_expire_remote+0x9b/0xe0 [ 45.917794][ C3] tmigr_handle_remote_cpu+0x270/0x430 [ 45.917941][ C3] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 45.918121][ C3] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.918269][ C3] tmigr_handle_remote+0x21d/0x3a0 [ 45.918496][ C3] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 45.918651][ C3] __do_softirq+0x1f8/0x5df [ 45.918796][ C3] irq_exit_rcu+0x97/0xc0 [ 45.918911][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.919071][ C3] [ 45.919236][ C3] [ 45.919308][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.919489][ C3] RIP: 0010:default_idle+0xf/0x20 [ 45.919642][ C3] 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 [ 45.920264][ C3] RSP: 0018:ffffc9000016fdf8 EFLAGS: 00000242 [ 45.920449][ C3] RAX: 0000000000086b3d RBX: 1ffff9200002dfc1 RCX: ffffffff8810f9e5 [ 45.920763][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff85aaa4a4 [ 45.920982][ C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c3709c [ 45.921194][ C3] R10: ffff8880361b84e3 R11: ffff8880361ad9b0 R12: 0000000000000000 [ 45.921411][ C3] R13: ffff888001b88040 R14: dffffc0000000000 R15: 0000000000000000 [ 45.921629][ C3] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 45.921770][ C3] ? cpuidle_idle_call+0x1f4/0x280 [ 45.921994][ C3] default_idle_call+0x6d/0xb0 [ 45.922134][ C3] cpuidle_idle_call+0x1f4/0x280 [ 45.922281][ C3] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 45.922428][ C3] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 45.922570][ C3] do_idle+0xf9/0x160 [ 45.922766][ C3] cpu_startup_entry+0x54/0x60 [ 45.922905][ C3] start_secondary+0x21c/0x2b0 [ 45.923068][ C3] ? __pfx_start_secondary+0x10/0x10 [ 45.923216][ C3] common_startup_64+0x12c/0x138 [ 45.923367][ C3] [ 66.844197][ T353] veth0: left promiscuous mode [ 67.143077][ T357] veth3: entered promiscuous mode [ 69.010600][ T366] veth3: left promiscuous mode [ 69.208346][ T368] veth3: entered promiscuous mode [ 71.045793][ T377] veth3: left promiscuous mode [ 71.241350][ T380] veth3: entered promiscuous mode [ 73.196233][ T389] veth3: left promiscuous mode [ 73.396699][ T391] veth3: entered promiscuous mode [ 75.378483][ T400] veth3: left promiscuous mode [ 75.546489][ T402] br0: port 2(veth2) entered disabled state [ 75.673420][ T403] br0: port 1(veth1) entered disabled state [ 75.802299][ T404] veth2: left allmulticast mode [ 75.802511][ T404] veth2: left promiscuous mode [ 75.802791][ T404] br0: port 2(veth2) entered disabled state [ 75.803861][ T404] veth1: left allmulticast mode [ 75.804021][ T404] veth1: left promiscuous mode [ 75.804273][ T404] br0: port 1(veth1) entered disabled state