[ 28.719149][ T288] br1: port 1(veth1) entered blocking state
[ 28.719561][ T288] br1: port 1(veth1) entered disabled state
[ 28.719907][ T288] veth1: entered allmulticast mode
[ 28.722052][ T288] veth1: entered promiscuous mode
[ 28.729822][ T288] ip (288) used greatest stack depth: 24096 bytes left
[ 28.837908][ T50] br1: port 1(veth1) entered blocking state
[ 28.838329][ T50] br1: port 1(veth1) entered forwarding state
[ 28.962862][ T290] br1: port 2(veth2) entered blocking state
[ 28.963127][ T290] br1: port 2(veth2) entered disabled state
[ 28.963370][ T290] veth2: entered allmulticast mode
[ 28.965174][ T290] veth2: entered promiscuous mode
[ 29.081021][ T51] br1: port 2(veth2) entered blocking state
[ 29.081258][ T51] br1: port 2(veth2) entered forwarding state
[ 43.875612][ C3]
[ 43.875783][ C3] ========================================================
[ 43.876139][ C3] WARNING: possible irq lock inversion dependency detected
[ 43.876498][ C3] 6.9.0-rc1-virtme #1 Not tainted
[ 43.876724][ C3] --------------------------------------------------------
[ 43.877079][ C3] swapper/3/0 just changed the state of lock:
[ 43.877519][ C3] ffff888005462c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.877976][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past:
[ 43.878269][ C3] (&p->alloc_lock){+.+.}-{2:2}
[ 43.878277][ C3]
[ 43.878277][ C3]
[ 43.878277][ C3] and interrupts could create inverse lock ordering between them.
[ 43.878277][ C3]
[ 43.879220][ C3]
[ 43.879220][ C3] other info that might help us debug this:
[ 43.879538][ C3] Chain exists of:
[ 43.879538][ C3] &br->lock --> lweventlist_lock --> &p->alloc_lock
[ 43.879538][ C3]
[ 43.880195][ C3] Possible interrupt unsafe locking scenario:
[ 43.880195][ C3]
[ 43.880528][ C3] CPU0 CPU1
[ 43.880754][ C3] ---- ----
[ 43.880980][ C3] lock(&p->alloc_lock);
[ 43.881154][ C3] local_irq_disable();
[ 43.881434][ C3] lock(&br->lock);
[ 43.881719][ C3] lock(lweventlist_lock);
[ 43.882130][ C3] <Interrupt>
[ 43.882302][ C3] lock(&br->lock);
[ 43.882475][ C3]
[ 43.882475][ C3] *** DEADLOCK ***
[ 43.882475][ C3]
[ 43.882805][ C3] 1 lock held by swapper/3/0:
[ 43.883030][ C3] #0: ffffc90000288d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 43.883634][ C3]
[ 43.883634][ C3] the shortest dependencies between 2nd lock and 1st lock:
[ 43.883934][ C3] -> (&p->alloc_lock){+.+.}-{2:2} {
[ 43.884242][ C3] HARDIRQ-ON-W at:
[ 43.884369][ C3] __lock_acquire+0x797/0x1570
[ 43.884634][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.884922][ C3] _raw_spin_lock+0x30/0x40
[ 43.885251][ C3] set_mems_allowed+0x1d/0x210
[ 43.885549][ C3] kernel_init_freeable+0x72/0x310
[ 43.885998][ C3] kernel_init+0x20/0x200
[ 43.886444][ C3] ret_from_fork+0x31/0x70
[ 43.886755][ C3] ret_from_fork_asm+0x1a/0x30
[ 43.887052][ C3] SOFTIRQ-ON-W at:
[ 43.887231][ C3] __lock_acquire+0x797/0x1570
[ 43.887698][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.888000][ C3] _raw_spin_lock+0x30/0x40
[ 43.888306][ C3] set_mems_allowed+0x1d/0x210
[ 43.888605][ C3] kernel_init_freeable+0x72/0x310
[ 43.889050][ C3] kernel_init+0x20/0x200
[ 43.889356][ C3] ret_from_fork+0x31/0x70
[ 43.889654][ C3] ret_from_fork_asm+0x1a/0x30
[ 43.890100][ C3] INITIAL USE at:
[ 43.890278][ C3] __lock_acquire+0x797/0x1570
[ 43.890713][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.891000][ C3] _raw_spin_lock+0x30/0x40
[ 43.891421][ C3] set_mems_allowed+0x1d/0x210
[ 43.891700][ C3] kernel_init_freeable+0x72/0x310
[ 43.892037][ C3] kernel_init+0x20/0x200
[ 43.892273][ C3] ret_from_fork+0x31/0x70
[ 43.892538][ C3] ret_from_fork_asm+0x1a/0x30
[ 43.892978][ C3] }
[ 43.893093][ C3] ... key at: [<ffffffffaf1ffd20>] __key.387+0x0/0x40
[ 43.893572][ C3] ... acquired at:
[ 43.893748][ C3] __lock_acquire+0xaf0/0x1570
[ 43.893981][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.894219][ C3] _raw_spin_lock+0x30/0x40
[ 43.894461][ C3] __get_task_comm+0x27/0x70
[ 43.894702][ C3] ref_tracker_alloc+0x2ee/0x490
[ 43.894938][ C3] linkwatch_fire_event+0x196/0x200
[ 43.895173][ C3] veth_newlink+0x367/0x830 [veth]
[ 43.895573][ C3] rtnl_newlink_create+0x341/0x850
[ 43.895811][ C3] __rtnl_newlink+0xac9/0xd80
[ 43.896051][ C3] rtnl_newlink+0x63/0xa0
[ 43.896431][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.896666][ C3] netlink_rcv_skb+0x130/0x360
[ 43.896904][ C3] netlink_unicast+0x449/0x710
[ 43.897284][ C3] netlink_sendmsg+0x723/0xbe0
[ 43.897518][ C3] ____sys_sendmsg+0x7b2/0xa10
[ 43.897721][ C3] ___sys_sendmsg+0xee/0x170
[ 43.898010][ C3] __sys_sendmsg+0xcd/0x170
[ 43.898266][ C3] do_syscall_64+0xc6/0x1e0
[ 43.898423][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.898675][ C3]
[ 43.898783][ C3] -> (lweventlist_lock){....}-{2:2} {
[ 43.899143][ C3] INITIAL USE at:
[ 43.899295][ C3] __lock_acquire+0x797/0x1570
[ 43.899537][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.899813][ C3] _raw_spin_lock_irqsave+0x3f/0x60
[ 43.900233][ C3] linkwatch_sync_dev+0x29/0x1f0
[ 43.900519][ C3] rtnl_getlink+0x4c9/0x970
[ 43.900805][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.901223][ C3] netlink_rcv_skb+0x130/0x360
[ 43.901510][ C3] netlink_unicast+0x449/0x710
[ 43.901803][ C3] netlink_sendmsg+0x723/0xbe0
[ 43.902224][ C3] __sys_sendto+0x37d/0x410
[ 43.902511][ C3] __x64_sys_sendto+0xe0/0x1c0
[ 43.902795][ C3] do_syscall_64+0xc6/0x1e0
[ 43.903079][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.903577][ C3] }
[ 43.903695][ C3] ... key at: [<ffffffffae19a738>] lweventlist_lock+0x18/0x60
[ 43.904180][ C3] ... acquired at:
[ 43.904353][ C3] __lock_acquire+0xaf0/0x1570
[ 43.904733][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.904968][ C3] _raw_spin_lock_irqsave+0x3f/0x60
[ 43.905207][ C3] linkwatch_fire_event+0x74/0x200
[ 43.905575][ C3] br_stp_change_bridge_id+0x25f/0x360 [bridge]
[ 43.905931][ C3] br_set_mac_address+0x1f3/0x260 [bridge]
[ 43.906382][ C3] dev_set_mac_address+0x28a/0x410
[ 43.906553][ C3] dev_set_mac_address_user+0x31/0x50
[ 43.906733][ C3] do_setlink+0x17b4/0x21e0
[ 43.906985][ C3] rtnl_setlink+0x1f7/0x310
[ 43.907143][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.907365][ C3] netlink_rcv_skb+0x130/0x360
[ 43.907592][ C3] netlink_unicast+0x449/0x710
[ 43.907845][ C3] netlink_sendmsg+0x723/0xbe0
[ 43.908062][ C3] __sys_sendto+0x37d/0x410
[ 43.908290][ C3] __x64_sys_sendto+0xe0/0x1c0
[ 43.908523][ C3] do_syscall_64+0xc6/0x1e0
[ 43.908802][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.909233][ C3]
[ 43.909349][ C3] -> (&br->lock){+.-.}-{2:2} {
[ 43.909546][ C3] HARDIRQ-ON-W at:
[ 43.909725][ C3] __lock_acquire+0x797/0x1570
[ 43.910181][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.910481][ C3] _raw_spin_lock_bh+0x38/0x50
[ 43.910778][ C3] recalculate_group_addr+0x55/0x130 [bridge]
[ 43.911361][ C3] br_vlan_filter_toggle+0x77/0x130 [bridge]
[ 43.911785][ C3] br_changelink+0x36c/0x1360 [bridge]
[ 43.912149][ C3] br_dev_newlink+0xa5/0x100 [bridge]
[ 43.912675][ C3] rtnl_newlink_create+0x341/0x850
[ 43.912965][ C3] __rtnl_newlink+0xac9/0xd80
[ 43.913260][ C3] rtnl_newlink+0x63/0xa0
[ 43.913562][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.913868][ C3] netlink_rcv_skb+0x130/0x360
[ 43.914306][ C3] netlink_unicast+0x449/0x710
[ 43.914592][ C3] netlink_sendmsg+0x723/0xbe0
[ 43.915030][ C3] ____sys_sendmsg+0x7b2/0xa10
[ 43.915320][ C3] ___sys_sendmsg+0xee/0x170
[ 43.915619][ C3] __sys_sendmsg+0xcd/0x170
[ 43.915846][ C3] do_syscall_64+0xc6/0x1e0
[ 43.916190][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.916434][ C3] IN-SOFTIRQ-W at:
[ 43.916606][ C3] __lock_acquire+0x797/0x1570
[ 43.916977][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.917200][ C3] _raw_spin_lock+0x30/0x40
[ 43.917454][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.917924][ C3] call_timer_fn+0x13b/0x230
[ 43.918193][ C3] __run_timers+0x545/0x810
[ 43.918483][ C3] run_timer_softirq+0xe8/0x1b0
[ 43.918774][ C3] __do_softirq+0x1f8/0x5df
[ 43.919193][ C3] irq_exit_rcu+0x97/0xc0
[ 43.919494][ C3] sysvec_apic_timer_interrupt+0x75/0x80
[ 43.919832][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 43.920309][ C3] default_idle+0xf/0x20
[ 43.920596][ C3] default_idle_call+0x6d/0xb0
[ 43.920890][ C3] cpuidle_idle_call+0x1f4/0x280
[ 43.921315][ C3] do_idle+0xf9/0x160
[ 43.921710][ C3] cpu_startup_entry+0x54/0x60
[ 43.922007][ C3] start_secondary+0x21c/0x2b0
[ 43.922298][ C3] common_startup_64+0x12c/0x138
[ 43.922591][ C3] INITIAL USE at:
[ 43.922769][ C3] __lock_acquire+0x797/0x1570
[ 43.923207][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.923496][ C3] _raw_spin_lock_bh+0x38/0x50
[ 43.923925][ C3] recalculate_group_addr+0x55/0x130 [bridge]
[ 43.924345][ C3] br_vlan_filter_toggle+0x77/0x130 [bridge]
[ 43.924749][ C3] br_changelink+0x36c/0x1360 [bridge]
[ 43.925114][ C3] br_dev_newlink+0xa5/0x100 [bridge]
[ 43.925385][ C3] rtnl_newlink_create+0x341/0x850
[ 43.925595][ C3] __rtnl_newlink+0xac9/0xd80
[ 43.925948][ C3] rtnl_newlink+0x63/0xa0
[ 43.926145][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.926342][ C3] netlink_rcv_skb+0x130/0x360
[ 43.926628][ C3] netlink_unicast+0x449/0x710
[ 43.926822][ C3] netlink_sendmsg+0x723/0xbe0
[ 43.927026][ C3] ____sys_sendmsg+0x7b2/0xa10
[ 43.927311][ C3] ___sys_sendmsg+0xee/0x170
[ 43.927517][ C3] __sys_sendmsg+0xcd/0x170
[ 43.927715][ C3] do_syscall_64+0xc6/0x1e0
[ 43.927913][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.928247][ C3] }
[ 43.928324][ C3] ... key at: [<ffffffffc067e540>] __key.6+0x0/0xfffffffffffe5ac0 [bridge]
[ 43.928636][ C3] ... acquired at:
[ 43.928757][ C3] mark_lock+0x28d/0x3e0
[ 43.929114][ C3] mark_usage+0xd9/0x2a0
[ 43.929273][ C3] __lock_acquire+0x797/0x1570
[ 43.929435][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.929597][ C3] _raw_spin_lock+0x30/0x40
[ 43.929841][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.930080][ C3] call_timer_fn+0x13b/0x230
[ 43.930238][ C3] __run_timers+0x545/0x810
[ 43.930396][ C3] run_timer_softirq+0xe8/0x1b0
[ 43.930652][ C3] __do_softirq+0x1f8/0x5df
[ 43.930816][ C3] irq_exit_rcu+0x97/0xc0
[ 43.930978][ C3] sysvec_apic_timer_interrupt+0x75/0x80
[ 43.931174][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 43.931462][ C3] default_idle+0xf/0x20
[ 43.931624][ C3] default_idle_call+0x6d/0xb0
[ 43.931780][ C3] cpuidle_idle_call+0x1f4/0x280
[ 43.931941][ C3] do_idle+0xf9/0x160
[ 43.932071][ C3] cpu_startup_entry+0x54/0x60
[ 43.932323][ C3] start_secondary+0x21c/0x2b0
[ 43.932477][ C3] common_startup_64+0x12c/0x138
[ 43.932640][ C3]
[ 43.932721][ C3]
[ 43.932721][ C3] stack backtrace:
[ 43.933004][ C3] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 6.9.0-rc1-virtme #1
[ 43.933241][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 43.933586][ C3] Call Trace:
[ 43.933784][ C3] <IRQ>
[ 43.933875][ C3] dump_stack_lvl+0x82/0xd0
[ 43.934041][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570
[ 43.934248][ C3] ? common_startup_64+0x12c/0x138
[ 43.934495][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10
[ 43.934699][ C3] ? __pfx_usage_skip+0x10/0x10
[ 43.934854][ C3] ? __pfx_usage_match+0x10/0x10
[ 43.935015][ C3] ? arch_stack_walk+0x8c/0xf0
[ 43.935170][ C3] mark_lock_irq+0x4cd/0xa10
[ 43.935327][ C3] ? __pfx_mark_lock_irq+0x10/0x10
[ 43.935585][ C3] ? stack_trace_save+0x94/0xd0
[ 43.935746][ C3] ? add_chain_cache+0x248/0x8b0
[ 43.935928][ C3] ? save_trace+0x8f/0x5b0
[ 43.936116][ C3] mark_lock+0x28d/0x3e0
[ 43.936294][ C3] mark_usage+0xd9/0x2a0
[ 43.936464][ C3] __lock_acquire+0x797/0x1570
[ 43.936630][ C3] ? __lock_acquire+0xaf0/0x1570
[ 43.936799][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge]
[ 43.937336][ C3] lock_acquire.part.0+0xeb/0x330
[ 43.937550][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.937837][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 43.938199][ C3] ? trace_lock_acquire+0x135/0x1c0
[ 43.938437][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.938806][ C3] ? lock_acquire+0x32/0xc0
[ 43.939178][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.939547][ C3] _raw_spin_lock+0x30/0x40
[ 43.939774][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.940118][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.940624][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge]
[ 43.941027][ C3] call_timer_fn+0x13b/0x230
[ 43.941258][ C3] ? call_timer_fn+0xe8/0x230
[ 43.941489][ C3] ? call_timer_fn+0xe8/0x230
[ 43.941714][ C3] ? __pfx_call_timer_fn+0x10/0x10
[ 43.941935][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 43.942162][ C3] __run_timers+0x545/0x810
[ 43.942384][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge]
[ 43.942779][ C3] ? __pfx___run_timers+0x10/0x10
[ 43.943011][ C3] ? do_raw_spin_lock+0x131/0x270
[ 43.943242][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 43.943492][ C3] ? lock_acquire+0x32/0xc0
[ 43.943717][ C3] ? run_timer_softirq+0xe0/0x1b0
[ 43.943952][ C3] run_timer_softirq+0xe8/0x1b0
[ 43.944192][ C3] __do_softirq+0x1f8/0x5df
[ 43.944415][ C3] irq_exit_rcu+0x97/0xc0
[ 43.944597][ C3] sysvec_apic_timer_interrupt+0x75/0x80
[ 43.944911][ C3] </IRQ>
[ 43.945000][ C3] <TASK>
[ 43.945096][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 43.945313][ C3] RIP: 0010:default_idle+0xf/0x20
[ 43.945636][ 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 a3 30 35 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
[ 43.946316][ C3] RSP: 0018:ffffc9000016fdf8 EFLAGS: 00000246
[ 43.946726][ C3] RAX: 00000000000a9daf RBX: 1ffff9200002dfc1 RCX: ffffffffac70e9d5
[ 43.947048][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffaa0aa4a4
[ 43.947343][ C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005f3709c
[ 43.947694][ C3] R10: ffff88802f9b84e3 R11: ffff88802f9bdc80 R12: 0000000000000000
[ 43.948046][ C3] R13: ffff888001b88040 R14: dffffc0000000000 R15: 0000000000000000
[ 43.948403][ C3] ? ct_kernel_exit.constprop.0+0xc5/0xf0
[ 43.948782][ C3] ? cpuidle_idle_call+0x1f4/0x280
[ 43.949021][ C3] default_idle_call+0x6d/0xb0
[ 43.949251][ C3] cpuidle_idle_call+0x1f4/0x280
[ 43.949593][ C3] ? __pfx_cpuidle_idle_call+0x10/0x10
[ 43.949963][ C3] ? tsc_verify_tsc_adjust+0x5e/0x2b0
[ 43.950205][ C3] do_idle+0xf9/0x160
[ 43.950382][ C3] cpu_startup_entry+0x54/0x60
[ 43.950754][ C3] start_secondary+0x21c/0x2b0
[ 43.950997][ C3] ? __pfx_start_secondary+0x10/0x10
[ 43.951363][ C3] common_startup_64+0x12c/0x138
[ 43.951597][ C3] </TASK>
[ 56.533353][ T625] br1: port 2(veth2) entered disabled state
[ 56.635265][ T626] veth2: left allmulticast mode
[ 56.635433][ T626] veth2: left promiscuous mode
[ 56.636472][ T626] br1: port 2(veth2) entered disabled state
[ 56.755087][ T627] br1: port 1(veth1) entered disabled state
[ 56.862581][ T628] veth1: left allmulticast mode
[ 56.862792][ T628] veth1: left promiscuous mode
[ 56.863075][ T628] br1: port 1(veth1) entered disabled state