[ 29.529614][ T285] br1: port 1(veth1) entered blocking state [ 29.531014][ T285] br1: port 1(veth1) entered disabled state [ 29.531395][ T285] veth1: entered allmulticast mode [ 29.533536][ T285] veth1: entered promiscuous mode [ 29.547456][ T285] ip (285) used greatest stack depth: 24144 bytes left [ 29.658976][ T7] br1: port 1(veth1) entered blocking state [ 29.659330][ T7] br1: port 1(veth1) entered forwarding state [ 29.791050][ T288] br1: port 2(veth2) entered blocking state [ 29.792344][ T288] br1: port 2(veth2) entered disabled state [ 29.792754][ T288] veth2: entered allmulticast mode [ 29.794825][ T288] veth2: entered promiscuous mode [ 29.908786][ T7] br1: port 2(veth2) entered blocking state [ 29.909085][ T7] br1: port 2(veth2) entered forwarding state [ 36.501748][ T307] GACT probability NOT on [ 44.880365][ C0] [ 44.880571][ C0] ======================================================== [ 44.880860][ C0] WARNING: possible irq lock inversion dependency detected [ 44.881097][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 44.881269][ C0] -------------------------------------------------------- [ 44.881489][ C0] swapper/0/0 just changed the state of lock: [ 44.881717][ C0] ffff88800880ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.882139][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.882384][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 44.882388][ C0] [ 44.882388][ C0] [ 44.882388][ C0] and interrupts could create inverse lock ordering between them. [ 44.882388][ C0] [ 44.882954][ C0] [ 44.882954][ C0] other info that might help us debug this: [ 44.883194][ C0] Chain exists of: [ 44.883194][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.883194][ C0] [ 44.883549][ C0] Possible interrupt unsafe locking scenario: [ 44.883549][ C0] [ 44.883794][ C0] CPU0 CPU1 [ 44.883954][ C0] ---- ---- [ 44.884106][ C0] lock(&p->alloc_lock); [ 44.884221][ C0] local_irq_disable(); [ 44.884405][ C0] lock(&br->lock); [ 44.884593][ C0] lock(lweventlist_lock); [ 44.884818][ C0] [ 44.884929][ C0] lock(&br->lock); [ 44.885042][ C0] [ 44.885042][ C0] *** DEADLOCK *** [ 44.885042][ C0] [ 44.885258][ C0] 1 lock held by swapper/0/0: [ 44.885414][ C0] #0: ffffc90000007d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.885731][ C0] [ 44.885731][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 44.885991][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.886147][ C0] HARDIRQ-ON-W at: [ 44.886261][ C0] __lock_acquire+0x797/0x1570 [ 44.886458][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.886649][ C0] _raw_spin_lock+0x30/0x40 [ 44.886846][ C0] set_mems_allowed+0x1d/0x210 [ 44.887032][ C0] kernel_init_freeable+0x72/0x310 [ 44.887217][ C0] kernel_init+0x20/0x200 [ 44.887412][ C0] ret_from_fork+0x31/0x70 [ 44.887597][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.887805][ C0] SOFTIRQ-ON-W at: [ 44.887921][ C0] __lock_acquire+0x797/0x1570 [ 44.888110][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.888294][ C0] _raw_spin_lock+0x30/0x40 [ 44.888483][ C0] set_mems_allowed+0x1d/0x210 [ 44.888670][ C0] kernel_init_freeable+0x72/0x310 [ 44.888882][ C0] kernel_init+0x20/0x200 [ 44.889072][ C0] ret_from_fork+0x31/0x70 [ 44.889260][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.889444][ C0] INITIAL USE at: [ 44.889556][ C0] __lock_acquire+0x797/0x1570 [ 44.889755][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.890037][ C0] _raw_spin_lock+0x30/0x40 [ 44.890282][ C0] set_mems_allowed+0x1d/0x210 [ 44.890482][ C0] kernel_init_freeable+0x72/0x310 [ 44.890671][ C0] kernel_init+0x20/0x200 [ 44.890865][ C0] ret_from_fork+0x31/0x70 [ 44.891053][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.891253][ C0] } [ 44.891340][ C0] ... key at: [] __key.387+0x0/0x40 [ 44.891567][ C0] ... acquired at: [ 44.891677][ C0] __lock_acquire+0xaf0/0x1570 [ 44.891843][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.891994][ C0] _raw_spin_lock+0x30/0x40 [ 44.892144][ C0] __get_task_comm+0x27/0x70 [ 44.892296][ C0] ref_tracker_alloc+0x2ee/0x490 [ 44.892451][ C0] linkwatch_fire_event+0x196/0x200 [ 44.892608][ C0] veth_newlink+0x367/0x830 [veth] [ 44.892843][ C0] rtnl_newlink_create+0x341/0x850 [ 44.893065][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.893291][ C0] rtnl_newlink+0x63/0xa0 [ 44.893520][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.893753][ C0] netlink_rcv_skb+0x130/0x360 [ 44.893997][ C0] netlink_unicast+0x449/0x710 [ 44.894239][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.894490][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.894736][ C0] ___sys_sendmsg+0xee/0x170 [ 44.894981][ C0] __sys_sendmsg+0xcd/0x170 [ 44.895223][ C0] do_syscall_64+0xc6/0x1e0 [ 44.895464][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.895768][ C0] [ 44.895892][ C0] -> (lweventlist_lock){....}-{2:2} { [ 44.896142][ C0] INITIAL USE at: [ 44.896324][ C0] __lock_acquire+0x797/0x1570 [ 44.896637][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.896976][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.897268][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 44.897486][ C0] rtnl_getlink+0x4c9/0x970 [ 44.897691][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.897900][ C0] netlink_rcv_skb+0x130/0x360 [ 44.898099][ C0] netlink_unicast+0x449/0x710 [ 44.898296][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.898494][ C0] __sys_sendto+0x37d/0x410 [ 44.898704][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.898904][ C0] do_syscall_64+0xc6/0x1e0 [ 44.899113][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.899357][ C0] } [ 44.899432][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.899654][ C0] ... acquired at: [ 44.899775][ C0] __lock_acquire+0xaf0/0x1570 [ 44.899924][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.900070][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.900217][ C0] linkwatch_fire_event+0x74/0x200 [ 44.900377][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.900654][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.900891][ C0] dev_set_mac_address+0x28a/0x410 [ 44.901052][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.901206][ C0] do_setlink+0x17b4/0x21e0 [ 44.901366][ C0] rtnl_setlink+0x1f7/0x310 [ 44.901515][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.901696][ C0] netlink_rcv_skb+0x130/0x360 [ 44.901876][ C0] netlink_unicast+0x449/0x710 [ 44.902023][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.902185][ C0] __sys_sendto+0x37d/0x410 [ 44.902333][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.902489][ C0] do_syscall_64+0xc6/0x1e0 [ 44.902654][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.902862][ C0] [ 44.902941][ C0] -> (&br->lock){+.-.}-{2:2} { [ 44.903102][ C0] HARDIRQ-ON-W at: [ 44.903228][ C0] __lock_acquire+0x797/0x1570 [ 44.903420][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.903616][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.903820][ C0] br_stp_enable_bridge+0x1f/0x2f0 [bridge] [ 44.904095][ C0] br_dev_open+0xa2/0x120 [bridge] [ 44.904332][ C0] __dev_open+0x221/0x430 [ 44.904531][ C0] __dev_change_flags+0x469/0x6c0 [ 44.904742][ C0] rtnl_configure_link+0x118/0x200 [ 44.904950][ C0] rtnl_newlink_create+0x36e/0x850 [ 44.905133][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.905318][ C0] rtnl_newlink+0x63/0xa0 [ 44.905504][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.905701][ C0] netlink_rcv_skb+0x130/0x360 [ 44.905900][ C0] netlink_unicast+0x449/0x710 [ 44.906089][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.906274][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.906459][ C0] ___sys_sendmsg+0xee/0x170 [ 44.906651][ C0] __sys_sendmsg+0xcd/0x170 [ 44.906860][ C0] do_syscall_64+0xc6/0x1e0 [ 44.907053][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.907278][ C0] IN-SOFTIRQ-W at: [ 44.907392][ C0] __lock_acquire+0x797/0x1570 [ 44.907578][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.907770][ C0] _raw_spin_lock+0x30/0x40 [ 44.907975][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.908261][ C0] call_timer_fn+0x13b/0x230 [ 44.908454][ C0] __run_timers+0x545/0x810 [ 44.908650][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.908869][ C0] __do_softirq+0x1f8/0x5df [ 44.909054][ C0] irq_exit_rcu+0x97/0xc0 [ 44.909254][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.909479][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.909711][ C0] default_idle+0xf/0x20 [ 44.909919][ C0] default_idle_call+0x6d/0xb0 [ 44.910115][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.910302][ C0] do_idle+0xf9/0x160 [ 44.910481][ C0] cpu_startup_entry+0x54/0x60 [ 44.910689][ C0] rest_init+0x14f/0x260 [ 44.910893][ C0] start_kernel+0x318/0x3d0 [ 44.911102][ C0] x86_64_start_reservations+0x18/0x30 [ 44.911302][ C0] x86_64_start_kernel+0xba/0x110 [ 44.911500][ C0] common_startup_64+0x12c/0x138 [ 44.911692][ C0] INITIAL USE at: [ 44.911836][ C0] __lock_acquire+0x797/0x1570 [ 44.912036][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.912238][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.912449][ C0] br_stp_enable_bridge+0x1f/0x2f0 [bridge] [ 44.912721][ C0] br_dev_open+0xa2/0x120 [bridge] [ 44.912951][ C0] __dev_open+0x221/0x430 [ 44.913135][ C0] __dev_change_flags+0x469/0x6c0 [ 44.913333][ C0] rtnl_configure_link+0x118/0x200 [ 44.913545][ C0] rtnl_newlink_create+0x36e/0x850 [ 44.913749][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.913940][ C0] rtnl_newlink+0x63/0xa0 [ 44.914134][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.914331][ C0] netlink_rcv_skb+0x130/0x360 [ 44.914525][ C0] netlink_unicast+0x449/0x710 [ 44.914762][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.915065][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.915254][ C0] ___sys_sendmsg+0xee/0x170 [ 44.915446][ C0] __sys_sendmsg+0xcd/0x170 [ 44.915773][ C0] do_syscall_64+0xc6/0x1e0 [ 44.915959][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.916181][ C0] } [ 44.916266][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.916668][ C0] ... acquired at: [ 44.916786][ C0] mark_lock+0x28d/0x3e0 [ 44.916938][ C0] mark_usage+0xd9/0x2a0 [ 44.917087][ C0] __lock_acquire+0x797/0x1570 [ 44.917331][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.917477][ C0] _raw_spin_lock+0x30/0x40 [ 44.917624][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.917857][ C0] call_timer_fn+0x13b/0x230 [ 44.918007][ C0] __run_timers+0x545/0x810 [ 44.918155][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.918306][ C0] __do_softirq+0x1f8/0x5df [ 44.918453][ C0] irq_exit_rcu+0x97/0xc0 [ 44.918798][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.918985][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.919175][ C0] default_idle+0xf/0x20 [ 44.919332][ C0] default_idle_call+0x6d/0xb0 [ 44.919570][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.919739][ C0] do_idle+0xf9/0x160 [ 44.919868][ C0] cpu_startup_entry+0x54/0x60 [ 44.920015][ C0] rest_init+0x14f/0x260 [ 44.920160][ C0] start_kernel+0x318/0x3d0 [ 44.920404][ C0] x86_64_start_reservations+0x18/0x30 [ 44.920567][ C0] x86_64_start_kernel+0xba/0x110 [ 44.920728][ C0] common_startup_64+0x12c/0x138 [ 44.920878][ C0] [ 44.920952][ C0] [ 44.920952][ C0] stack backtrace: [ 44.921136][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 44.921357][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.921793][ C0] Call Trace: [ 44.921906][ C0] [ 44.921989][ C0] dump_stack_lvl+0x82/0xd0 [ 44.922146][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.922441][ C0] ? common_startup_64+0x12c/0x138 [ 44.922603][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.922807][ C0] ? __pfx_usage_skip+0x10/0x10 [ 44.922973][ C0] ? __pfx_usage_match+0x10/0x10 [ 44.923224][ C0] ? arch_stack_walk+0x8c/0xf0 [ 44.923395][ C0] mark_lock_irq+0x4cd/0xa10 [ 44.923554][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.923713][ C0] ? stack_trace_save+0x94/0xd0 [ 44.923880][ C0] ? add_chain_cache+0x248/0x8b0 [ 44.924037][ C0] ? save_trace+0x8f/0x5b0 [ 44.924185][ C0] mark_lock+0x28d/0x3e0 [ 44.924307][ C0] mark_usage+0xd9/0x2a0 [ 44.924425][ C0] __lock_acquire+0x797/0x1570 [ 44.924674][ C0] ? __lock_acquire+0xaf0/0x1570 [ 44.924840][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.925120][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.925277][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.925601][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.925770][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 44.925927][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.926169][ C0] ? lock_acquire+0x32/0xc0 [ 44.926427][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.926663][ C0] _raw_spin_lock+0x30/0x40 [ 44.926838][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.927059][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.927300][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.927565][ C0] call_timer_fn+0x13b/0x230 [ 44.927738][ C0] ? call_timer_fn+0xe8/0x230 [ 44.927976][ C0] ? call_timer_fn+0xe8/0x230 [ 44.928141][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 44.928288][ C0] ? mark_lock+0x38/0x3e0 [ 44.928416][ C0] __run_timers+0x545/0x810 [ 44.928572][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.928966][ C0] ? __pfx___run_timers+0x10/0x10 [ 44.929115][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.929274][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.929522][ C0] ? lock_acquire+0x32/0xc0 [ 44.929674][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 44.929851][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.930007][ C0] __do_softirq+0x1f8/0x5df [ 44.930161][ C0] irq_exit_rcu+0x97/0xc0 [ 44.930377][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.930533][ C0] [ 44.930623][ C0] [ 44.930707][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.930910][ C0] RIP: 0010:default_idle+0xf/0x20 [ 44.931194][ 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 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 [ 44.931753][ C0] RSP: 0018:ffffffff9da07e00 EFLAGS: 00000242 [ 44.932057][ C0] RAX: 00000000000a34fd RBX: 1ffffffff3b40fc2 RCX: ffffffff9cb0f9e5 [ 44.932297][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9a4aa4a4 [ 44.932537][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 44.932902][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 44.933134][ C0] R13: ffffffff9da1d000 R14: dffffc0000000000 R15: 0000000000014770 [ 44.933450][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.933601][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 44.933764][ C0] default_idle_call+0x6d/0xb0 [ 44.933912][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.934060][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.934300][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.934450][ C0] do_idle+0xf9/0x160 [ 44.934561][ C0] cpu_startup_entry+0x54/0x60 [ 44.934710][ C0] rest_init+0x14f/0x260 [ 44.934825][ C0] start_kernel+0x318/0x3d0 [ 44.934974][ C0] x86_64_start_reservations+0x18/0x30 [ 44.935127][ C0] x86_64_start_kernel+0xba/0x110 [ 44.935272][ C0] common_startup_64+0x12c/0x138 [ 44.935424][ C0] [ 57.351676][ T473] br1: port 2(veth2) entered disabled state [ 57.445143][ T474] veth2: left allmulticast mode [ 57.445345][ T474] veth2: left promiscuous mode [ 57.445616][ T474] br1: port 2(veth2) entered disabled state [ 57.549699][ T475] br1: port 1(veth1) entered disabled state [ 57.684005][ T477] veth1: left allmulticast mode [ 57.684356][ T477] veth1: left promiscuous mode [ 57.684740][ T477] br1: port 1(veth1) entered disabled state