[ 29.145030][ T285] br1: port 1(veth1) entered blocking state [ 29.146336][ T285] br1: port 1(veth1) entered disabled state [ 29.146999][ T285] veth1: entered allmulticast mode [ 29.148969][ T285] veth1: entered promiscuous mode [ 29.398669][ T288] br1: port 2(veth2) entered blocking state [ 29.398962][ T288] br1: port 2(veth2) entered disabled state [ 29.399220][ T288] veth2: entered allmulticast mode [ 29.402189][ T288] veth2: entered promiscuous mode [ 29.645111][ T290] br1: port 2(veth2) entered blocking state [ 29.645644][ T290] br1: port 2(veth2) entered forwarding state [ 29.646299][ T290] br1: port 1(veth1) entered blocking state [ 29.646541][ T290] br1: port 1(veth1) entered forwarding state [ 36.658722][ T315] GACT probability NOT on [ 44.868479][ C2] [ 44.868592][ C2] ======================================================== [ 44.868810][ C2] WARNING: possible irq lock inversion dependency detected [ 44.869035][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 44.869184][ C2] -------------------------------------------------------- [ 44.869406][ C2] swapper/2/0 just changed the state of lock: [ 44.869592][ C2] ffff88800781ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.869984][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.870203][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 44.870207][ C2] [ 44.870207][ C2] [ 44.870207][ C2] and interrupts could create inverse lock ordering between them. [ 44.870207][ C2] [ 44.870744][ C2] [ 44.870744][ C2] other info that might help us debug this: [ 44.870972][ C2] Chain exists of: [ 44.870972][ C2] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.870972][ C2] [ 44.871318][ C2] Possible interrupt unsafe locking scenario: [ 44.871318][ C2] [ 44.871533][ C2] CPU0 CPU1 [ 44.871681][ C2] ---- ---- [ 44.871827][ C2] lock(&p->alloc_lock); [ 44.871975][ C2] local_irq_disable(); [ 44.872195][ C2] lock(&br->lock); [ 44.872384][ C2] lock(lweventlist_lock); [ 44.872574][ C2] [ 44.872684][ C2] lock(&br->lock); [ 44.872796][ C2] [ 44.872796][ C2] *** DEADLOCK *** [ 44.872796][ C2] [ 44.873011][ C2] 1 lock held by swapper/2/0: [ 44.873159][ C2] #0: ffffc90000230d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.873464][ C2] [ 44.873464][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 44.873722][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.873874][ C2] HARDIRQ-ON-W at: [ 44.873992][ C2] __lock_acquire+0x797/0x1570 [ 44.874182][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.874368][ C2] _raw_spin_lock+0x30/0x40 [ 44.874555][ C2] set_mems_allowed+0x1d/0x210 [ 44.874766][ C2] kernel_init_freeable+0x72/0x310 [ 44.874956][ C2] kernel_init+0x20/0x200 [ 44.875142][ C2] ret_from_fork+0x31/0x70 [ 44.875329][ C2] ret_from_fork_asm+0x1a/0x30 [ 44.875512][ C2] SOFTIRQ-ON-W at: [ 44.875625][ C2] __lock_acquire+0x797/0x1570 [ 44.875813][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.875997][ C2] _raw_spin_lock+0x30/0x40 [ 44.876184][ C2] set_mems_allowed+0x1d/0x210 [ 44.876369][ C2] kernel_init_freeable+0x72/0x310 [ 44.876553][ C2] kernel_init+0x20/0x200 [ 44.876736][ C2] ret_from_fork+0x31/0x70 [ 44.876926][ C2] ret_from_fork_asm+0x1a/0x30 [ 44.877109][ C2] INITIAL USE at: [ 44.877221][ C2] __lock_acquire+0x797/0x1570 [ 44.877405][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.877592][ C2] _raw_spin_lock+0x30/0x40 [ 44.877775][ C2] set_mems_allowed+0x1d/0x210 [ 44.877960][ C2] kernel_init_freeable+0x72/0x310 [ 44.878151][ C2] kernel_init+0x20/0x200 [ 44.878335][ C2] ret_from_fork+0x31/0x70 [ 44.878521][ C2] ret_from_fork_asm+0x1a/0x30 [ 44.878708][ C2] } [ 44.878785][ C2] ... key at: [] __key.387+0x0/0x40 [ 44.879009][ C2] ... acquired at: [ 44.879121][ C2] __lock_acquire+0xaf0/0x1570 [ 44.879275][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.879426][ C2] _raw_spin_lock+0x30/0x40 [ 44.879575][ C2] __get_task_comm+0x27/0x70 [ 44.879724][ C2] ref_tracker_alloc+0x2ee/0x490 [ 44.879873][ C2] linkwatch_fire_event+0x196/0x200 [ 44.880024][ C2] veth_newlink+0x367/0x830 [veth] [ 44.880177][ C2] rtnl_newlink_create+0x341/0x850 [ 44.880329][ C2] __rtnl_newlink+0xac9/0xd80 [ 44.880476][ C2] rtnl_newlink+0x63/0xa0 [ 44.880624][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.880770][ C2] netlink_rcv_skb+0x130/0x360 [ 44.880919][ C2] netlink_unicast+0x449/0x710 [ 44.881071][ C2] netlink_sendmsg+0x723/0xbe0 [ 44.881221][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 44.881372][ C2] ___sys_sendmsg+0xee/0x170 [ 44.881523][ C2] __sys_sendmsg+0xcd/0x170 [ 44.881677][ C2] do_syscall_64+0xc6/0x1e0 [ 44.881825][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.882011][ C2] [ 44.882086][ C2] -> (lweventlist_lock){....}-{2:2} { [ 44.882238][ C2] INITIAL USE at: [ 44.882349][ C2] __lock_acquire+0x797/0x1570 [ 44.882536][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.882721][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.882912][ C2] linkwatch_sync_dev+0x29/0x1f0 [ 44.883096][ C2] rtnl_getlink+0x4c9/0x970 [ 44.883283][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.883467][ C2] netlink_rcv_skb+0x130/0x360 [ 44.883652][ C2] netlink_unicast+0x449/0x710 [ 44.883837][ C2] netlink_sendmsg+0x723/0xbe0 [ 44.884025][ C2] __sys_sendto+0x37d/0x410 [ 44.884209][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 44.884394][ C2] do_syscall_64+0xc6/0x1e0 [ 44.884579][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.884808][ C2] } [ 44.884883][ C2] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.885109][ C2] ... acquired at: [ 44.885219][ C2] __lock_acquire+0xaf0/0x1570 [ 44.885368][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.885516][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.885662][ C2] linkwatch_fire_event+0x74/0x200 [ 44.885811][ C2] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.886036][ C2] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.886256][ C2] dev_set_mac_address+0x28a/0x410 [ 44.886406][ C2] dev_set_mac_address_user+0x31/0x50 [ 44.886552][ C2] do_setlink+0x17b4/0x21e0 [ 44.886698][ C2] rtnl_setlink+0x1f7/0x310 [ 44.886845][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.886990][ C2] netlink_rcv_skb+0x130/0x360 [ 44.887140][ C2] netlink_unicast+0x449/0x710 [ 44.887287][ C2] netlink_sendmsg+0x723/0xbe0 [ 44.887434][ C2] __sys_sendto+0x37d/0x410 [ 44.887587][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 44.887737][ C2] do_syscall_64+0xc6/0x1e0 [ 44.887884][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.888069][ C2] [ 44.888144][ C2] -> (&br->lock){+.-.}-{2:2} { [ 44.888297][ C2] HARDIRQ-ON-W at: [ 44.888410][ C2] __lock_acquire+0x797/0x1570 [ 44.888596][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.888785][ C2] _raw_spin_lock_bh+0x38/0x50 [ 44.888972][ C2] br_set_mac_address+0xd2/0x260 [bridge] [ 44.889225][ C2] dev_set_mac_address+0x28a/0x410 [ 44.889409][ C2] dev_set_mac_address_user+0x31/0x50 [ 44.889593][ C2] do_setlink+0x17b4/0x21e0 [ 44.889775][ C2] rtnl_setlink+0x1f7/0x310 [ 44.889964][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.890146][ C2] netlink_rcv_skb+0x130/0x360 [ 44.890330][ C2] netlink_unicast+0x449/0x710 [ 44.890512][ C2] netlink_sendmsg+0x723/0xbe0 [ 44.890694][ C2] __sys_sendto+0x37d/0x410 [ 44.890962][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 44.891146][ C2] do_syscall_64+0xc6/0x1e0 [ 44.891335][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.891554][ C2] IN-SOFTIRQ-W at: [ 44.891741][ C2] __lock_acquire+0x797/0x1570 [ 44.891926][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.892110][ C2] _raw_spin_lock+0x30/0x40 [ 44.892372][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.892636][ C2] call_timer_fn+0x13b/0x230 [ 44.892823][ C2] __run_timers+0x545/0x810 [ 44.893012][ C2] run_timer_softirq+0xe8/0x1b0 [ 44.893272][ C2] __do_softirq+0x1f8/0x5df [ 44.893456][ C2] irq_exit_rcu+0x97/0xc0 [ 44.893640][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.893939][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.894168][ C2] default_idle+0xf/0x20 [ 44.894352][ C2] default_idle_call+0x6d/0xb0 [ 44.894688][ C2] cpuidle_idle_call+0x1f4/0x280 [ 44.894886][ C2] do_idle+0xf9/0x160 [ 44.895033][ C2] cpu_startup_entry+0x54/0x60 [ 44.895218][ C2] start_secondary+0x21c/0x2b0 [ 44.895483][ C2] common_startup_64+0x12c/0x138 [ 44.895667][ C2] INITIAL USE at: [ 44.895778][ C2] __lock_acquire+0x797/0x1570 [ 44.896040][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.896224][ C2] _raw_spin_lock_bh+0x38/0x50 [ 44.896407][ C2] br_set_mac_address+0xd2/0x260 [bridge] [ 44.896660][ C2] dev_set_mac_address+0x28a/0x410 [ 44.896938][ C2] dev_set_mac_address_user+0x31/0x50 [ 44.897122][ C2] do_setlink+0x17b4/0x21e0 [ 44.897307][ C2] rtnl_setlink+0x1f7/0x310 [ 44.897583][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.897766][ C2] netlink_rcv_skb+0x130/0x360 [ 44.897949][ C2] netlink_unicast+0x449/0x710 [ 44.898137][ C2] netlink_sendmsg+0x723/0xbe0 [ 44.898319][ C2] __sys_sendto+0x37d/0x410 [ 44.898503][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 44.898687][ C2] do_syscall_64+0xc6/0x1e0 [ 44.898873][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.899093][ C2] } [ 44.899167][ C2] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.899457][ C2] ... acquired at: [ 44.899565][ C2] mark_lock+0x28d/0x3e0 [ 44.899714][ C2] mark_usage+0xd9/0x2a0 [ 44.899860][ C2] __lock_acquire+0x797/0x1570 [ 44.900008][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.900231][ C2] _raw_spin_lock+0x30/0x40 [ 44.900376][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.900594][ C2] call_timer_fn+0x13b/0x230 [ 44.900746][ C2] __run_timers+0x545/0x810 [ 44.900969][ C2] run_timer_softirq+0xe8/0x1b0 [ 44.901114][ C2] __do_softirq+0x1f8/0x5df [ 44.901259][ C2] irq_exit_rcu+0x97/0xc0 [ 44.901406][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.901663][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.901851][ C2] default_idle+0xf/0x20 [ 44.901997][ C2] default_idle_call+0x6d/0xb0 [ 44.902144][ C2] cpuidle_idle_call+0x1f4/0x280 [ 44.902372][ C2] do_idle+0xf9/0x160 [ 44.902486][ C2] cpu_startup_entry+0x54/0x60 [ 44.902632][ C2] start_secondary+0x21c/0x2b0 [ 44.902779][ C2] common_startup_64+0x12c/0x138 [ 44.903002][ C2] [ 44.903075][ C2] [ 44.903075][ C2] stack backtrace: [ 44.903255][ C2] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.9.0-rc1-virtme #1 [ 44.903475][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.903880][ C2] Call Trace: [ 44.903994][ C2] [ 44.904072][ C2] dump_stack_lvl+0x82/0xd0 [ 44.904224][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.904482][ C2] ? common_startup_64+0x12c/0x138 [ 44.904630][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.904830][ C2] ? __pfx_usage_skip+0x10/0x10 [ 44.904978][ C2] ? __pfx_usage_match+0x10/0x10 [ 44.905202][ C2] ? arch_stack_walk+0x8c/0xf0 [ 44.905350][ C2] mark_lock_irq+0x4cd/0xa10 [ 44.905498][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.905643][ C2] ? stack_trace_save+0x94/0xd0 [ 44.905943][ C2] ? add_chain_cache+0x248/0x8b0 [ 44.906090][ C2] ? save_trace+0x8f/0x5b0 [ 44.906238][ C2] mark_lock+0x28d/0x3e0 [ 44.906354][ C2] mark_usage+0xd9/0x2a0 [ 44.906467][ C2] __lock_acquire+0x797/0x1570 [ 44.906691][ C2] ? __lock_acquire+0xaf0/0x1570 [ 44.906838][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.907095][ C2] lock_acquire.part.0+0xeb/0x330 [ 44.907318][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.907538][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.907684][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 44.907837][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.908133][ C2] ? lock_acquire+0x32/0xc0 [ 44.908279][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.908500][ C2] _raw_spin_lock+0x30/0x40 [ 44.908647][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.908868][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.909094][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.909349][ C2] call_timer_fn+0x13b/0x230 [ 44.909498][ C2] ? call_timer_fn+0xe8/0x230 [ 44.909644][ C2] ? call_timer_fn+0xe8/0x230 [ 44.909792][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 44.909940][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.910087][ C2] __run_timers+0x545/0x810 [ 44.910310][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.910572][ C2] ? __pfx___run_timers+0x10/0x10 [ 44.910720][ C2] ? do_raw_spin_lock+0x131/0x270 [ 44.910940][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.911088][ C2] ? lock_acquire+0x32/0xc0 [ 44.911234][ C2] ? run_timer_softirq+0xe0/0x1b0 [ 44.911382][ C2] run_timer_softirq+0xe8/0x1b0 [ 44.911528][ C2] __do_softirq+0x1f8/0x5df [ 44.911751][ C2] irq_exit_rcu+0x97/0xc0 [ 44.911862][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.912012][ C2] [ 44.912088][ C2] [ 44.912163][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.912421][ C2] RIP: 0010:default_idle+0xf/0x20 [ 44.912574][ C2] 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 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 44.913180][ C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000242 [ 44.913369][ C2] RAX: 000000000011fa0d RBX: 1ffff9200002bfc1 RCX: ffffffff9790e9d5 [ 44.913590][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff952aa4a4 [ 44.913889][ C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2709c [ 44.914107][ C2] R10: ffff8880361384e3 R11: ffff88803613dc80 R12: 0000000000000000 [ 44.914330][ C2] R13: ffff888001b7c5c0 R14: dffffc0000000000 R15: 0000000000000000 [ 44.914645][ C2] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.914801][ C2] ? cpuidle_idle_call+0x1f4/0x280 [ 44.914950][ C2] default_idle_call+0x6d/0xb0 [ 44.915096][ C2] cpuidle_idle_call+0x1f4/0x280 [ 44.915242][ C2] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.915388][ C2] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.915541][ C2] do_idle+0xf9/0x160 [ 44.915652][ C2] cpu_startup_entry+0x54/0x60 [ 44.915799][ C2] start_secondary+0x21c/0x2b0 [ 44.915947][ C2] ? __pfx_start_secondary+0x10/0x10 [ 44.916094][ C2] common_startup_64+0x12c/0x138 [ 44.916243][ C2] [ 51.868490][ T548] br1: port 2(veth2) entered disabled state [ 51.869034][ T548] br1: port 1(veth1) entered disabled state [ 52.071185][ T550] veth2: left allmulticast mode [ 52.071373][ T550] veth2: left promiscuous mode [ 52.071741][ T550] br1: port 2(veth2) entered disabled state [ 52.278914][ T552] veth1: left allmulticast mode [ 52.279084][ T552] veth1: left promiscuous mode [ 52.279332][ T552] br1: port 1(veth1) entered disabled state