[ 27.771741][ T286] br0: port 1(veth1) entered blocking state [ 27.772168][ T286] br0: port 1(veth1) entered disabled state [ 27.772491][ T286] veth1: entered allmulticast mode [ 27.774399][ T286] veth1: entered promiscuous mode [ 27.871677][ T288] br0: port 2(veth2) entered blocking state [ 27.871976][ T288] br0: port 2(veth2) entered disabled state [ 27.872454][ T288] veth2: entered allmulticast mode [ 27.875029][ T288] veth2: entered promiscuous mode [ 28.128032][ T7] br0: port 1(veth1) entered blocking state [ 28.128534][ T7] br0: port 1(veth1) entered forwarding state [ 28.246829][ T49] br0: port 2(veth2) entered blocking state [ 28.247144][ T49] br0: port 2(veth2) entered forwarding state [ 37.198014][ T318] veth0: entered promiscuous mode [ 37.746986][ T324] GACT probability NOT on [ 43.312288][ C0] [ 43.312465][ C0] ======================================================== [ 43.312710][ C0] WARNING: possible irq lock inversion dependency detected [ 43.312939][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 43.313104][ C0] -------------------------------------------------------- [ 43.313338][ C0] swapper/0/0 just changed the state of lock: [ 43.313540][ C0] ffff88803a60ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.313941][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.314174][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 43.314179][ C0] [ 43.314179][ C0] [ 43.314179][ C0] and interrupts could create inverse lock ordering between them. [ 43.314179][ C0] [ 43.314767][ C0] [ 43.314767][ C0] other info that might help us debug this: [ 43.314995][ C0] Chain exists of: [ 43.314995][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 43.314995][ C0] [ 43.315343][ C0] Possible interrupt unsafe locking scenario: [ 43.315343][ C0] [ 43.315579][ C0] CPU0 CPU1 [ 43.315737][ C0] ---- ---- [ 43.315892][ C0] lock(&p->alloc_lock); [ 43.316013][ C0] local_irq_disable(); [ 43.316208][ C0] lock(&br->lock); [ 43.316400][ C0] lock(lweventlist_lock); [ 43.316594][ C0] [ 43.316721][ C0] lock(&br->lock); [ 43.316840][ C0] [ 43.316840][ C0] *** DEADLOCK *** [ 43.316840][ C0] [ 43.317069][ C0] 1 lock held by swapper/0/0: [ 43.317224][ C0] #0: ffffc90000007d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 43.317547][ C0] [ 43.317547][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 43.317818][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.317981][ C0] HARDIRQ-ON-W at: [ 43.318104][ C0] __lock_acquire+0x797/0x1570 [ 43.318304][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.318502][ C0] _raw_spin_lock+0x30/0x40 [ 43.318702][ C0] set_mems_allowed+0x1d/0x210 [ 43.318902][ C0] kernel_init_freeable+0x72/0x310 [ 43.319112][ C0] kernel_init+0x20/0x200 [ 43.319312][ C0] ret_from_fork+0x31/0x70 [ 43.319513][ C0] ret_from_fork_asm+0x1a/0x30 [ 43.319711][ C0] SOFTIRQ-ON-W at: [ 43.319832][ C0] __lock_acquire+0x797/0x1570 [ 43.320034][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.320238][ C0] _raw_spin_lock+0x30/0x40 [ 43.320439][ C0] set_mems_allowed+0x1d/0x210 [ 43.320637][ C0] kernel_init_freeable+0x72/0x310 [ 43.320839][ C0] kernel_init+0x20/0x200 [ 43.321039][ C0] ret_from_fork+0x31/0x70 [ 43.321242][ C0] ret_from_fork_asm+0x1a/0x30 [ 43.321446][ C0] INITIAL USE at: [ 43.321568][ C0] __lock_acquire+0x797/0x1570 [ 43.321769][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.321968][ C0] _raw_spin_lock+0x30/0x40 [ 43.322172][ C0] set_mems_allowed+0x1d/0x210 [ 43.322371][ C0] kernel_init_freeable+0x72/0x310 [ 43.322568][ C0] kernel_init+0x20/0x200 [ 43.322773][ C0] ret_from_fork+0x31/0x70 [ 43.322987][ C0] ret_from_fork_asm+0x1a/0x30 [ 43.323190][ C0] } [ 43.323274][ C0] ... key at: [] __key.387+0x0/0x40 [ 43.323518][ C0] ... acquired at: [ 43.323639][ C0] __lock_acquire+0xaf0/0x1570 [ 43.323802][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.323965][ C0] _raw_spin_lock+0x30/0x40 [ 43.324129][ C0] __get_task_comm+0x27/0x70 [ 43.324293][ C0] ref_tracker_alloc+0x2ee/0x490 [ 43.324454][ C0] linkwatch_fire_event+0x196/0x200 [ 43.324616][ C0] veth_newlink+0x367/0x830 [veth] [ 43.324789][ C0] rtnl_newlink_create+0x341/0x850 [ 43.324949][ C0] __rtnl_newlink+0xac9/0xd80 [ 43.325109][ C0] rtnl_newlink+0x63/0xa0 [ 43.325276][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.325433][ C0] netlink_rcv_skb+0x130/0x360 [ 43.325597][ C0] netlink_unicast+0x449/0x710 [ 43.325761][ C0] netlink_sendmsg+0x723/0xbe0 [ 43.325920][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 43.326083][ C0] ___sys_sendmsg+0xee/0x170 [ 43.326244][ C0] __sys_sendmsg+0xcd/0x170 [ 43.326410][ C0] do_syscall_64+0xc6/0x1e0 [ 43.326572][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.326777][ C0] [ 43.326858][ C0] -> (lweventlist_lock){....}-{2:2} { [ 43.327024][ C0] INITIAL USE at: [ 43.327144][ C0] __lock_acquire+0x797/0x1570 [ 43.327345][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.327543][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.327744][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 43.327945][ C0] rtnl_getlink+0x4c9/0x970 [ 43.328131][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.328317][ C0] netlink_rcv_skb+0x130/0x360 [ 43.328499][ C0] netlink_unicast+0x449/0x710 [ 43.328686][ C0] netlink_sendmsg+0x723/0xbe0 [ 43.328872][ C0] __sys_sendto+0x37d/0x410 [ 43.329063][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 43.329251][ C0] do_syscall_64+0xc6/0x1e0 [ 43.329434][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.329662][ C0] } [ 43.329736][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 43.329955][ C0] ... acquired at: [ 43.330068][ C0] __lock_acquire+0xaf0/0x1570 [ 43.330216][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.330367][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.330514][ C0] linkwatch_fire_event+0x74/0x200 [ 43.330661][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 43.330885][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 43.331101][ C0] dev_set_mac_address+0x28a/0x410 [ 43.331249][ C0] dev_set_mac_address_user+0x31/0x50 [ 43.331401][ C0] do_setlink+0x17b4/0x21e0 [ 43.331554][ C0] rtnl_setlink+0x1f7/0x310 [ 43.331712][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.331857][ C0] netlink_rcv_skb+0x130/0x360 [ 43.332004][ C0] netlink_unicast+0x449/0x710 [ 43.332152][ C0] netlink_sendmsg+0x723/0xbe0 [ 43.332300][ C0] __sys_sendto+0x37d/0x410 [ 43.332449][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 43.332600][ C0] do_syscall_64+0xc6/0x1e0 [ 43.332752][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.332937][ C0] [ 43.333022][ C0] -> (&br->lock){+.-.}-{2:2} { [ 43.333171][ C0] HARDIRQ-ON-W at: [ 43.333282][ C0] __lock_acquire+0x797/0x1570 [ 43.333467][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.333651][ C0] _raw_spin_lock_bh+0x38/0x50 [ 43.333841][ C0] br_set_ageing_time+0x2d/0xf0 [bridge] [ 43.334095][ C0] br_changelink+0x231/0x1360 [bridge] [ 43.334317][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 43.334541][ C0] rtnl_newlink_create+0x341/0x850 [ 43.334727][ C0] __rtnl_newlink+0xac9/0xd80 [ 43.334912][ C0] rtnl_newlink+0x63/0xa0 [ 43.335097][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.335283][ C0] netlink_rcv_skb+0x130/0x360 [ 43.335472][ C0] netlink_unicast+0x449/0x710 [ 43.335669][ C0] netlink_sendmsg+0x723/0xbe0 [ 43.335868][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 43.336067][ C0] ___sys_sendmsg+0xee/0x170 [ 43.336268][ C0] __sys_sendmsg+0xcd/0x170 [ 43.336469][ C0] do_syscall_64+0xc6/0x1e0 [ 43.336666][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.336891][ C0] IN-SOFTIRQ-W at: [ 43.337001][ C0] __lock_acquire+0x797/0x1570 [ 43.337186][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.337369][ C0] _raw_spin_lock+0x30/0x40 [ 43.337558][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.337822][ C0] call_timer_fn+0x13b/0x230 [ 43.338010][ C0] __run_timers+0x545/0x810 [ 43.338195][ C0] run_timer_softirq+0xe8/0x1b0 [ 43.338378][ C0] __do_softirq+0x1f8/0x5df [ 43.338568][ C0] irq_exit_rcu+0x97/0xc0 [ 43.338757][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.338983][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.339208][ C0] default_idle+0xf/0x20 [ 43.339395][ C0] default_idle_call+0x6d/0xb0 [ 43.339584][ C0] cpuidle_idle_call+0x1f4/0x280 [ 43.339773][ C0] do_idle+0xf9/0x160 [ 43.339925][ C0] cpu_startup_entry+0x54/0x60 [ 43.340114][ C0] rest_init+0x14f/0x260 [ 43.340300][ C0] start_kernel+0x318/0x3d0 [ 43.340486][ C0] x86_64_start_reservations+0x18/0x30 [ 43.340686][ C0] x86_64_start_kernel+0xba/0x110 [ 43.340868][ C0] common_startup_64+0x12c/0x138 [ 43.341052][ C0] INITIAL USE at: [ 43.341167][ C0] __lock_acquire+0x797/0x1570 [ 43.341356][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.341543][ C0] _raw_spin_lock_bh+0x38/0x50 [ 43.341726][ C0] br_set_ageing_time+0x2d/0xf0 [bridge] [ 43.341989][ C0] br_changelink+0x231/0x1360 [bridge] [ 43.342209][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 43.342430][ C0] rtnl_newlink_create+0x341/0x850 [ 43.342622][ C0] __rtnl_newlink+0xac9/0xd80 [ 43.342811][ C0] rtnl_newlink+0x63/0xa0 [ 43.343009][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.343197][ C0] netlink_rcv_skb+0x130/0x360 [ 43.343382][ C0] netlink_unicast+0x449/0x710 [ 43.343569][ C0] netlink_sendmsg+0x723/0xbe0 [ 43.343754][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 43.343937][ C0] ___sys_sendmsg+0xee/0x170 [ 43.344122][ C0] __sys_sendmsg+0xcd/0x170 [ 43.344305][ C0] do_syscall_64+0xc6/0x1e0 [ 43.344487][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.344804][ C0] } [ 43.344879][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 43.345171][ C0] ... acquired at: [ 43.345280][ C0] mark_lock+0x28d/0x3e0 [ 43.345515][ C0] mark_usage+0xd9/0x2a0 [ 43.345662][ C0] __lock_acquire+0x797/0x1570 [ 43.345807][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.345955][ C0] _raw_spin_lock+0x30/0x40 [ 43.346198][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.346415][ C0] call_timer_fn+0x13b/0x230 [ 43.346569][ C0] __run_timers+0x545/0x810 [ 43.346715][ C0] run_timer_softirq+0xe8/0x1b0 [ 43.346863][ C0] __do_softirq+0x1f8/0x5df [ 43.347009][ C0] irq_exit_rcu+0x97/0xc0 [ 43.347155][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.347335][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.347608][ C0] default_idle+0xf/0x20 [ 43.347753][ C0] default_idle_call+0x6d/0xb0 [ 43.347898][ C0] cpuidle_idle_call+0x1f4/0x280 [ 43.348045][ C0] do_idle+0xf9/0x160 [ 43.348161][ C0] cpu_startup_entry+0x54/0x60 [ 43.348396][ C0] rest_init+0x14f/0x260 [ 43.348549][ C0] start_kernel+0x318/0x3d0 [ 43.348694][ C0] x86_64_start_reservations+0x18/0x30 [ 43.348845][ C0] x86_64_start_kernel+0xba/0x110 [ 43.349081][ C0] common_startup_64+0x12c/0x138 [ 43.349227][ C0] [ 43.349307][ C0] [ 43.349307][ C0] stack backtrace: [ 43.349486][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 43.349798][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.350118][ C0] Call Trace: [ 43.350228][ C0] [ 43.350306][ C0] dump_stack_lvl+0x82/0xd0 [ 43.350559][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.350758][ C0] ? common_startup_64+0x12c/0x138 [ 43.350911][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.351188][ C0] ? __pfx_usage_skip+0x10/0x10 [ 43.351334][ C0] ? __pfx_usage_match+0x10/0x10 [ 43.351479][ C0] ? arch_stack_walk+0x8c/0xf0 [ 43.351627][ C0] mark_lock_irq+0x4cd/0xa10 [ 43.351779][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.351924][ C0] ? stack_trace_save+0x94/0xd0 [ 43.352077][ C0] ? add_chain_cache+0x248/0x8b0 [ 43.352226][ C0] ? save_trace+0x8f/0x5b0 [ 43.352374][ C0] mark_lock+0x28d/0x3e0 [ 43.352668][ C0] mark_usage+0xd9/0x2a0 [ 43.352779][ C0] __lock_acquire+0x797/0x1570 [ 43.352925][ C0] ? __lock_acquire+0xaf0/0x1570 [ 43.353087][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.353435][ C0] lock_acquire.part.0+0xeb/0x330 [ 43.353586][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.353810][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.353958][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 43.354199][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.354416][ C0] ? lock_acquire+0x32/0xc0 [ 43.354567][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.354783][ C0] _raw_spin_lock+0x30/0x40 [ 43.354934][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.355152][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.355374][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.355722][ C0] call_timer_fn+0x13b/0x230 [ 43.355870][ C0] ? call_timer_fn+0xe8/0x230 [ 43.356018][ C0] ? call_timer_fn+0xe8/0x230 [ 43.356163][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 43.356402][ C0] ? mark_lock+0x38/0x3e0 [ 43.356518][ C0] __run_timers+0x545/0x810 [ 43.356668][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.356926][ C0] ? __pfx___run_timers+0x10/0x10 [ 43.357165][ C0] ? do_raw_spin_lock+0x131/0x270 [ 43.357312][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.357458][ C0] ? lock_acquire+0x32/0xc0 [ 43.357609][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 43.357755][ C0] run_timer_softirq+0xe8/0x1b0 [ 43.357906][ C0] __do_softirq+0x1f8/0x5df [ 43.358052][ C0] irq_exit_rcu+0x97/0xc0 [ 43.358167][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.358314][ C0] [ 43.358393][ C0] [ 43.358564][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.358743][ C0] RIP: 0010:default_idle+0xf/0x20 [ 43.358900][ 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 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 [ 43.359535][ C0] RSP: 0018:ffffffffb9e07e00 EFLAGS: 00000242 [ 43.359720][ C0] RAX: 00000000000a6229 RBX: 1ffffffff73c0fc2 RCX: ffffffffb8f0e9d5 [ 43.360035][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb68aa4a4 [ 43.360251][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005f0709c [ 43.360470][ C0] R10: ffff88802f8384e3 R11: ffff88802f82d9b0 R12: 0000000000000000 [ 43.360779][ C0] R13: ffffffffb9e1d000 R14: dffffc0000000000 R15: 0000000000014770 [ 43.360998][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 43.361145][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 43.361290][ C0] default_idle_call+0x6d/0xb0 [ 43.361528][ C0] cpuidle_idle_call+0x1f4/0x280 [ 43.361679][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 43.361826][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 43.361974][ C0] do_idle+0xf9/0x160 [ 43.362173][ C0] cpu_startup_entry+0x54/0x60 [ 43.362319][ C0] rest_init+0x14f/0x260 [ 43.362430][ C0] start_kernel+0x318/0x3d0 [ 43.362585][ C0] x86_64_start_reservations+0x18/0x30 [ 43.362732][ C0] x86_64_start_kernel+0xba/0x110 [ 43.362886][ C0] common_startup_64+0x12c/0x138 [ 43.363053][ C0] [ 64.137228][ T352] veth0: left promiscuous mode [ 64.441123][ T356] veth3: entered promiscuous mode [ 66.219456][ T365] veth3: left promiscuous mode [ 66.401480][ T367] veth3: entered promiscuous mode [ 68.224006][ T376] veth3: left promiscuous mode [ 68.415328][ T379] veth3: entered promiscuous mode [ 70.246669][ T388] veth3: left promiscuous mode [ 70.430221][ T390] veth3: entered promiscuous mode [ 72.287205][ T399] veth3: left promiscuous mode [ 72.387744][ T401] br0: port 2(veth2) entered disabled state [ 72.480963][ T402] br0: port 1(veth1) entered disabled state [ 72.588543][ T403] veth2: left allmulticast mode [ 72.588787][ T403] veth2: left promiscuous mode [ 72.589030][ T403] br0: port 2(veth2) entered disabled state [ 72.589948][ T403] veth1: left allmulticast mode [ 72.590090][ T403] veth1: left promiscuous mode [ 72.590331][ T403] br0: port 1(veth1) entered disabled state