[ 28.052035][ T287] br0: port 1(veth1) entered blocking state
[ 28.052585][ T287] br0: port 1(veth1) entered disabled state
[ 28.052962][ T287] veth1: entered allmulticast mode
[ 28.055577][ T287] veth1: entered promiscuous mode
[ 28.174627][ T289] br0: port 2(veth2) entered blocking state
[ 28.175576][ T289] br0: port 2(veth2) entered disabled state
[ 28.175864][ T289] veth2: entered allmulticast mode
[ 28.177722][ T289] veth2: entered promiscuous mode
[ 28.460777][ T50] br0: port 1(veth1) entered blocking state
[ 28.461211][ T50] br0: port 1(veth1) entered forwarding state
[ 32.208161][ T254] (udev-worker) (254) used greatest stack depth: 24464 bytes left
[ 39.066247][ T51] br0: port 2(veth2) entered blocking state
[ 39.066524][ T51] br0: port 2(veth2) entered forwarding state
[ 43.822992][ C1]
[ 43.823233][ C1] ========================================================
[ 43.823608][ C1] WARNING: possible irq lock inversion dependency detected
[ 43.823963][ C1] 6.9.0-rc1-virtme #1 Not tainted
[ 43.824207][ C1] --------------------------------------------------------
[ 43.824574][ C1] swapper/1/0 just changed the state of lock:
[ 43.824866][ C1] ffff888005b62c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.825484][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past:
[ 43.825853][ C1] (&p->alloc_lock){+.+.}-{2:2}
[ 43.825862][ C1]
[ 43.825862][ C1]
[ 43.825862][ C1] and interrupts could create inverse lock ordering between them.
[ 43.825862][ C1]
[ 43.826738][ C1]
[ 43.826738][ C1] other info that might help us debug this:
[ 43.827090][ C1] Chain exists of:
[ 43.827090][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock
[ 43.827090][ C1]
[ 43.827629][ C1] Possible interrupt unsafe locking scenario:
[ 43.827629][ C1]
[ 43.828010][ C1] CPU0 CPU1
[ 43.828245][ C1] ---- ----
[ 43.828477][ C1] lock(&p->alloc_lock);
[ 43.828667][ C1] local_irq_disable();
[ 43.828949][ C1] lock(&br->lock);
[ 43.829244][ C1] lock(lweventlist_lock);
[ 43.829549][ C1] <Interrupt>
[ 43.829726][ C1] lock(&br->lock);
[ 43.829911][ C1]
[ 43.829911][ C1] *** DEADLOCK ***
[ 43.829911][ C1]
[ 43.830253][ C1] 1 lock held by swapper/1/0:
[ 43.830488][ C1] #0: ffffc900001d8b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 43.830984][ C1]
[ 43.830984][ C1] the shortest dependencies between 2nd lock and 1st lock:
[ 43.831390][ C1] -> (&p->alloc_lock){+.+.}-{2:2} {
[ 43.831636][ C1] HARDIRQ-ON-W at:
[ 43.831823][ C1] __lock_acquire+0x797/0x1570
[ 43.832163][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.832453][ C1] _raw_spin_lock+0x30/0x40
[ 43.832744][ C1] set_mems_allowed+0x1d/0x210
[ 43.833043][ C1] kernel_init_freeable+0x72/0x310
[ 43.833326][ C1] kernel_init+0x20/0x200
[ 43.833619][ C1] ret_from_fork+0x31/0x70
[ 43.833921][ C1] ret_from_fork_asm+0x1a/0x30
[ 43.834212][ C1] SOFTIRQ-ON-W at:
[ 43.834383][ C1] __lock_acquire+0x797/0x1570
[ 43.834673][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.834975][ C1] _raw_spin_lock+0x30/0x40
[ 43.835252][ C1] set_mems_allowed+0x1d/0x210
[ 43.835535][ C1] kernel_init_freeable+0x72/0x310
[ 43.835838][ C1] kernel_init+0x20/0x200
[ 43.836126][ C1] ret_from_fork+0x31/0x70
[ 43.836410][ C1] ret_from_fork_asm+0x1a/0x30
[ 43.836712][ C1] INITIAL USE at:
[ 43.836887][ C1] __lock_acquire+0x797/0x1570
[ 43.837183][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.837479][ C1] _raw_spin_lock+0x30/0x40
[ 43.837773][ C1] set_mems_allowed+0x1d/0x210
[ 43.838059][ C1] kernel_init_freeable+0x72/0x310
[ 43.838359][ C1] kernel_init+0x20/0x200
[ 43.838640][ C1] ret_from_fork+0x31/0x70
[ 43.838928][ C1] ret_from_fork_asm+0x1a/0x30
[ 43.839210][ C1] }
[ 43.839324][ C1] ... key at: [<ffffffff96bffd20>] __key.387+0x0/0x40
[ 43.839672][ C1] ... acquired at:
[ 43.839838][ C1] __lock_acquire+0xaf0/0x1570
[ 43.840073][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.840291][ C1] _raw_spin_lock+0x30/0x40
[ 43.840508][ C1] __get_task_comm+0x27/0x70
[ 43.840728][ C1] ref_tracker_alloc+0x2ee/0x490
[ 43.840954][ C1] linkwatch_fire_event+0x196/0x200
[ 43.841182][ C1] veth_newlink+0x367/0x830 [veth]
[ 43.841413][ C1] rtnl_newlink_create+0x341/0x850
[ 43.841650][ C1] __rtnl_newlink+0xac9/0xd80
[ 43.841883][ C1] rtnl_newlink+0x63/0xa0
[ 43.842113][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.842314][ C1] netlink_rcv_skb+0x130/0x360
[ 43.842531][ C1] netlink_unicast+0x449/0x710
[ 43.842756][ C1] netlink_sendmsg+0x723/0xbe0
[ 43.842981][ C1] ____sys_sendmsg+0x7b2/0xa10
[ 43.843216][ C1] ___sys_sendmsg+0xee/0x170
[ 43.843448][ C1] __sys_sendmsg+0xcd/0x170
[ 43.843674][ C1] do_syscall_64+0xc6/0x1e0
[ 43.843911][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.844197][ C1]
[ 43.844315][ C1] -> (lweventlist_lock){....}-{2:2} {
[ 43.844548][ C1] INITIAL USE at:
[ 43.844713][ C1] __lock_acquire+0x797/0x1570
[ 43.844993][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.845272][ C1] _raw_spin_lock_irqsave+0x3f/0x60
[ 43.845562][ C1] linkwatch_sync_dev+0x29/0x1f0
[ 43.845862][ C1] rtnl_getlink+0x4c9/0x970
[ 43.846153][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.846440][ C1] netlink_rcv_skb+0x130/0x360
[ 43.846715][ C1] netlink_unicast+0x449/0x710
[ 43.846999][ C1] netlink_sendmsg+0x723/0xbe0
[ 43.847301][ C1] __sys_sendto+0x37d/0x410
[ 43.847595][ C1] __x64_sys_sendto+0xe0/0x1c0
[ 43.847892][ C1] do_syscall_64+0xc6/0x1e0
[ 43.848181][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.848536][ C1] }
[ 43.848663][ C1] ... key at: [<ffffffff95b9a738>] lweventlist_lock+0x18/0x60
[ 43.849012][ C1] ... acquired at:
[ 43.849178][ C1] __lock_acquire+0xaf0/0x1570
[ 43.849412][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.849634][ C1] _raw_spin_lock_irqsave+0x3f/0x60
[ 43.849859][ C1] linkwatch_fire_event+0x74/0x200
[ 43.850085][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge]
[ 43.850443][ C1] br_set_mac_address+0x1f3/0x260 [bridge]
[ 43.850786][ C1] dev_set_mac_address+0x28a/0x410
[ 43.851031][ C1] dev_set_mac_address_user+0x31/0x50
[ 43.851253][ C1] do_setlink+0x17b4/0x21e0
[ 43.851489][ C1] rtnl_setlink+0x1f7/0x310
[ 43.851708][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.851938][ C1] netlink_rcv_skb+0x130/0x360
[ 43.852170][ C1] netlink_unicast+0x449/0x710
[ 43.852397][ C1] netlink_sendmsg+0x723/0xbe0
[ 43.852630][ C1] __sys_sendto+0x37d/0x410
[ 43.852886][ C1] __x64_sys_sendto+0xe0/0x1c0
[ 43.853117][ C1] do_syscall_64+0xc6/0x1e0
[ 43.853346][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.853634][ C1]
[ 43.853745][ C1] -> (&br->lock){+.-.}-{2:2} {
[ 43.853969][ C1] HARDIRQ-ON-W at:
[ 43.854133][ C1] __lock_acquire+0x797/0x1570
[ 43.854413][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.854691][ C1] _raw_spin_lock_bh+0x38/0x50
[ 43.854982][ C1] br_set_mac_address+0xd2/0x260 [bridge]
[ 43.855394][ C1] dev_set_mac_address+0x28a/0x410
[ 43.855700][ C1] dev_set_mac_address_user+0x31/0x50
[ 43.855982][ C1] do_setlink+0x17b4/0x21e0
[ 43.856270][ C1] rtnl_setlink+0x1f7/0x310
[ 43.856573][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.856866][ C1] netlink_rcv_skb+0x130/0x360
[ 43.857154][ C1] netlink_unicast+0x449/0x710
[ 43.857443][ C1] netlink_sendmsg+0x723/0xbe0
[ 43.857730][ C1] __sys_sendto+0x37d/0x410
[ 43.858022][ C1] __x64_sys_sendto+0xe0/0x1c0
[ 43.858311][ C1] do_syscall_64+0xc6/0x1e0
[ 43.858602][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.858954][ C1] IN-SOFTIRQ-W at:
[ 43.859133][ C1] __lock_acquire+0x797/0x1570
[ 43.859423][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.859717][ C1] _raw_spin_lock+0x30/0x40
[ 43.860017][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.860435][ C1] call_timer_fn+0x13b/0x230
[ 43.860746][ C1] __run_timers+0x545/0x810
[ 43.861038][ C1] timer_expire_remote+0x9b/0xe0
[ 43.861329][ C1] tmigr_handle_remote_cpu+0x270/0x430
[ 43.861619][ C1] tmigr_handle_remote_up+0x19f/0x2e0
[ 43.861908][ C1] tmigr_handle_remote+0x21d/0x3a0
[ 43.862196][ C1] __do_softirq+0x1f8/0x5df
[ 43.862496][ C1] irq_exit_rcu+0x97/0xc0
[ 43.862781][ C1] sysvec_apic_timer_interrupt+0x75/0x80
[ 43.863126][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 43.863476][ C1] default_idle+0xf/0x20
[ 43.863756][ C1] default_idle_call+0x6d/0xb0
[ 43.864031][ C1] cpuidle_idle_call+0x1f4/0x280
[ 43.864314][ C1] do_idle+0xf9/0x160
[ 43.864536][ C1] cpu_startup_entry+0x54/0x60
[ 43.864816][ C1] start_secondary+0x21c/0x2b0
[ 43.865098][ C1] common_startup_64+0x12c/0x138
[ 43.865382][ C1] INITIAL USE at:
[ 43.865543][ C1] __lock_acquire+0x797/0x1570
[ 43.865834][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.866117][ C1] _raw_spin_lock_bh+0x38/0x50
[ 43.866396][ C1] br_set_mac_address+0xd2/0x260 [bridge]
[ 43.866798][ C1] dev_set_mac_address+0x28a/0x410
[ 43.867088][ C1] dev_set_mac_address_user+0x31/0x50
[ 43.867371][ C1] do_setlink+0x17b4/0x21e0
[ 43.867635][ C1] rtnl_setlink+0x1f7/0x310
[ 43.867928][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0
[ 43.868217][ C1] netlink_rcv_skb+0x130/0x360
[ 43.868502][ C1] netlink_unicast+0x449/0x710
[ 43.868781][ C1] netlink_sendmsg+0x723/0xbe0
[ 43.869055][ C1] __sys_sendto+0x37d/0x410
[ 43.869342][ C1] __x64_sys_sendto+0xe0/0x1c0
[ 43.869618][ C1] do_syscall_64+0xc6/0x1e0
[ 43.869910][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 43.870246][ C1] }
[ 43.870362][ C1] ... key at: [<ffffffffc05af540>] __key.6+0x0/0xfffffffffffe5ac0 [bridge]
[ 43.870822][ C1] ... acquired at:
[ 43.870987][ C1] mark_lock+0x28d/0x3e0
[ 43.871216][ C1] mark_usage+0xd9/0x2a0
[ 43.871599][ C1] __lock_acquire+0x797/0x1570
[ 43.871826][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.872060][ C1] _raw_spin_lock+0x30/0x40
[ 43.872289][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.872784][ C1] call_timer_fn+0x13b/0x230
[ 43.873013][ C1] __run_timers+0x545/0x810
[ 43.873238][ C1] timer_expire_remote+0x9b/0xe0
[ 43.873464][ C1] tmigr_handle_remote_cpu+0x270/0x430
[ 43.873843][ C1] tmigr_handle_remote_up+0x19f/0x2e0
[ 43.874078][ C1] tmigr_handle_remote+0x21d/0x3a0
[ 43.874306][ C1] __do_softirq+0x1f8/0x5df
[ 43.874532][ C1] irq_exit_rcu+0x97/0xc0
[ 43.874759][ C1] sysvec_apic_timer_interrupt+0x75/0x80
[ 43.875036][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 43.875314][ C1] default_idle+0xf/0x20
[ 43.875542][ C1] default_idle_call+0x6d/0xb0
[ 43.875940][ C1] cpuidle_idle_call+0x1f4/0x280
[ 43.876179][ C1] do_idle+0xf9/0x160
[ 43.876353][ C1] cpu_startup_entry+0x54/0x60
[ 43.876589][ C1] start_secondary+0x21c/0x2b0
[ 43.876821][ C1] common_startup_64+0x12c/0x138
[ 43.877058][ C1]
[ 43.877172][ C1]
[ 43.877172][ C1] stack backtrace:
[ 43.877448][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1
[ 43.877794][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 43.878307][ C1] Call Trace:
[ 43.878482][ C1] <IRQ>
[ 43.878601][ C1] dump_stack_lvl+0x82/0xd0
[ 43.878998][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570
[ 43.879290][ C1] ? common_startup_64+0x12c/0x138
[ 43.879525][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10
[ 43.879815][ C1] ? __pfx_usage_skip+0x10/0x10
[ 43.880204][ C1] ? __pfx_usage_match+0x10/0x10
[ 43.880438][ C1] ? arch_stack_walk+0x8c/0xf0
[ 43.880672][ C1] mark_lock_irq+0x4cd/0xa10
[ 43.880906][ C1] ? __pfx_mark_lock_irq+0x10/0x10
[ 43.881264][ C1] ? stack_trace_save+0x94/0xd0
[ 43.881503][ C1] ? add_chain_cache+0x248/0x8b0
[ 43.881737][ C1] ? save_trace+0x8f/0x5b0
[ 43.881963][ C1] mark_lock+0x28d/0x3e0
[ 43.882139][ C1] mark_usage+0xd9/0x2a0
[ 43.882464][ C1] __lock_acquire+0x797/0x1570
[ 43.882696][ C1] ? __lock_acquire+0xaf0/0x1570
[ 43.882920][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge]
[ 43.883332][ C1] lock_acquire.part.0+0xeb/0x330
[ 43.883710][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.884068][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 43.884296][ C1] ? trace_lock_acquire+0x135/0x1c0
[ 43.884533][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.885042][ C1] ? lock_acquire+0x32/0xc0
[ 43.885270][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.885639][ C1] _raw_spin_lock+0x30/0x40
[ 43.885877][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.886231][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge]
[ 43.886587][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge]
[ 43.887006][ C1] call_timer_fn+0x13b/0x230
[ 43.887239][ C1] ? call_timer_fn+0xe8/0x230
[ 43.887478][ C1] ? call_timer_fn+0xe8/0x230
[ 43.887710][ C1] ? __pfx_call_timer_fn+0x10/0x10
[ 43.887906][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 43.888258][ C1] __run_timers+0x545/0x810
[ 43.888484][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge]
[ 43.888899][ C1] ? __pfx___run_timers+0x10/0x10
[ 43.889132][ C1] ? __lock_release+0x103/0x460
[ 43.889527][ C1] ? do_raw_spin_lock+0x131/0x270
[ 43.889751][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 43.889990][ C1] ? lock_acquire+0x32/0xc0
[ 43.890204][ C1] ? timer_expire_remote+0x93/0xe0
[ 43.890585][ C1] timer_expire_remote+0x9b/0xe0
[ 43.890811][ C1] tmigr_handle_remote_cpu+0x270/0x430
[ 43.891051][ C1] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10
[ 43.891346][ C1] tmigr_handle_remote_up+0x19f/0x2e0
[ 43.891732][ C1] tmigr_handle_remote+0x21d/0x3a0
[ 43.891965][ C1] ? __pfx_tmigr_handle_remote+0x10/0x10
[ 43.892188][ C1] __do_softirq+0x1f8/0x5df
[ 43.892423][ C1] irq_exit_rcu+0x97/0xc0
[ 43.892601][ C1] sysvec_apic_timer_interrupt+0x75/0x80
[ 43.893129][ C1] </IRQ>
[ 43.893251][ C1] <TASK>
[ 43.893377][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 43.893659][ C1] RIP: 0010:default_idle+0xf/0x20
[ 43.893894][ 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 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
[ 43.894682][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246
[ 43.894961][ C1] RAX: 000000000006ae4b RBX: 1ffff92000029fc1 RCX: ffffffff9410e9d5
[ 43.895302][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff91aaa4a4
[ 43.895653][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c
[ 43.896148][ C1] R10: ffff8880360b84e3 R11: ffff8880360ad9b0 R12: 0000000000000000
[ 43.896478][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000
[ 43.896811][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0
[ 43.897200][ C1] ? cpuidle_idle_call+0x1f4/0x280
[ 43.897433][ C1] default_idle_call+0x6d/0xb0
[ 43.897664][ C1] cpuidle_idle_call+0x1f4/0x280
[ 43.897889][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10
[ 43.898262][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0
[ 43.898485][ C1] do_idle+0xf9/0x160
[ 43.898662][ C1] cpu_startup_entry+0x54/0x60
[ 43.898898][ C1] start_secondary+0x21c/0x2b0
[ 43.899143][ C1] ? __pfx_start_secondary+0x10/0x10
[ 43.899524][ C1] common_startup_64+0x12c/0x138
[ 43.899764][ C1] </TASK>
[ 44.818625][ T305] GACT probability NOT on
[ 46.641538][ T312] br0: port 2(veth2) entered disabled state
[ 46.943458][ T50] br0: port 2(veth2) entered blocking state
[ 46.943689][ T50] br0: port 2(veth2) entered forwarding state
[ 53.966029][ T329] br0: port 1(veth1) entered disabled state
[ 54.060311][ T330] br0: port 2(veth2) entered disabled state
[ 54.155264][ T331] veth2: left allmulticast mode
[ 54.155461][ T331] veth2: left promiscuous mode
[ 54.155771][ T331] br0: port 2(veth2) entered disabled state
[ 54.156765][ T331] veth1: left allmulticast mode
[ 54.156916][ T331] veth1: left promiscuous mode
[ 54.157160][ T331] br0: port 1(veth1) entered disabled state