[ 34.159846][ T287] br0: port 1(veth1) entered blocking state [ 34.160360][ T287] br0: port 1(veth1) entered disabled state [ 34.160738][ T287] veth1: entered allmulticast mode [ 34.163141][ T287] veth1: entered promiscuous mode [ 34.343558][ T289] br0: port 2(veth2) entered blocking state [ 34.343962][ T289] br0: port 2(veth2) entered disabled state [ 34.344362][ T289] veth2: entered allmulticast mode [ 34.348610][ T289] veth2: entered promiscuous mode [ 34.652890][ T7] br0: port 1(veth1) entered blocking state [ 34.653559][ T7] br0: port 1(veth1) entered forwarding state [ 34.783555][ T49] br0: port 2(veth2) entered blocking state [ 34.783812][ T49] br0: port 2(veth2) entered forwarding state [ 46.853909][ T315] GACT probability NOT on [ 49.856184][ C0] [ 49.856345][ C0] ======================================================== [ 49.856620][ C0] WARNING: possible irq lock inversion dependency detected [ 49.856884][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 49.857045][ C0] -------------------------------------------------------- [ 49.857295][ C0] swapper/0/0 just changed the state of lock: [ 49.857504][ C0] ffff88800758ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.857913][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 49.858135][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 49.858139][ C0] [ 49.858139][ C0] [ 49.858139][ C0] and interrupts could create inverse lock ordering between them. [ 49.858139][ C0] [ 49.858728][ C0] [ 49.858728][ C0] other info that might help us debug this: [ 49.858964][ C0] Chain exists of: [ 49.858964][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 49.858964][ C0] [ 49.859298][ C0] Possible interrupt unsafe locking scenario: [ 49.859298][ C0] [ 49.859530][ C0] CPU0 CPU1 [ 49.859679][ C0] ---- ---- [ 49.859841][ C0] lock(&p->alloc_lock); [ 49.859967][ C0] local_irq_disable(); [ 49.860160][ C0] lock(&br->lock); [ 49.860350][ C0] lock(lweventlist_lock); [ 49.860561][ C0] [ 49.860704][ C0] lock(&br->lock); [ 49.860834][ C0] [ 49.860834][ C0] *** DEADLOCK *** [ 49.860834][ C0] [ 49.861061][ C0] 1 lock held by swapper/0/0: [ 49.861210][ C0] #0: ffffc90000007d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 49.861546][ C0] [ 49.861546][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 49.861814][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 49.861969][ C0] HARDIRQ-ON-W at: [ 49.862090][ C0] __lock_acquire+0x797/0x1570 [ 49.862303][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.862502][ C0] _raw_spin_lock+0x30/0x40 [ 49.862702][ C0] set_mems_allowed+0x1d/0x210 [ 49.862934][ C0] kernel_init_freeable+0x72/0x310 [ 49.863141][ C0] kernel_init+0x20/0x200 [ 49.863344][ C0] ret_from_fork+0x31/0x70 [ 49.863554][ C0] ret_from_fork_asm+0x1a/0x30 [ 49.863764][ C0] SOFTIRQ-ON-W at: [ 49.863901][ C0] __lock_acquire+0x797/0x1570 [ 49.864105][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.864333][ C0] _raw_spin_lock+0x30/0x40 [ 49.864567][ C0] set_mems_allowed+0x1d/0x210 [ 49.864794][ C0] kernel_init_freeable+0x72/0x310 [ 49.864994][ C0] kernel_init+0x20/0x200 [ 49.865206][ C0] ret_from_fork+0x31/0x70 [ 49.865430][ C0] ret_from_fork_asm+0x1a/0x30 [ 49.865636][ C0] INITIAL USE at: [ 49.865766][ C0] __lock_acquire+0x797/0x1570 [ 49.865974][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.866203][ C0] _raw_spin_lock+0x30/0x40 [ 49.866415][ C0] set_mems_allowed+0x1d/0x210 [ 49.866654][ C0] kernel_init_freeable+0x72/0x310 [ 49.866854][ C0] kernel_init+0x20/0x200 [ 49.867058][ C0] ret_from_fork+0x31/0x70 [ 49.867261][ C0] ret_from_fork_asm+0x1a/0x30 [ 49.867467][ C0] } [ 49.867550][ C0] ... key at: [] __key.387+0x0/0x40 [ 49.867792][ C0] ... acquired at: [ 49.867918][ C0] __lock_acquire+0xaf0/0x1570 [ 49.868081][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.868240][ C0] _raw_spin_lock+0x30/0x40 [ 49.868400][ C0] __get_task_comm+0x27/0x70 [ 49.868560][ C0] ref_tracker_alloc+0x2ee/0x490 [ 49.868727][ C0] linkwatch_fire_event+0x196/0x200 [ 49.868890][ C0] veth_newlink+0x367/0x830 [veth] [ 49.869054][ C0] rtnl_newlink_create+0x341/0x850 [ 49.869212][ C0] __rtnl_newlink+0xac9/0xd80 [ 49.869371][ C0] rtnl_newlink+0x63/0xa0 [ 49.869528][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.869685][ C0] netlink_rcv_skb+0x130/0x360 [ 49.869848][ C0] netlink_unicast+0x449/0x710 [ 49.870011][ C0] netlink_sendmsg+0x723/0xbe0 [ 49.870170][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 49.870331][ C0] ___sys_sendmsg+0xee/0x170 [ 49.870489][ C0] __sys_sendmsg+0xcd/0x170 [ 49.870650][ C0] do_syscall_64+0xc6/0x1e0 [ 49.870810][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.871009][ C0] [ 49.871092][ C0] -> (lweventlist_lock){....}-{2:2} { [ 49.871262][ C0] INITIAL USE at: [ 49.871383][ C0] __lock_acquire+0x797/0x1570 [ 49.871581][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.871781][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 49.872003][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 49.872193][ C0] rtnl_getlink+0x4c9/0x970 [ 49.872390][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.872591][ C0] netlink_rcv_skb+0x130/0x360 [ 49.872795][ C0] netlink_unicast+0x449/0x710 [ 49.873019][ C0] netlink_sendmsg+0x723/0xbe0 [ 49.873210][ C0] __sys_sendto+0x37d/0x410 [ 49.873419][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 49.873611][ C0] do_syscall_64+0xc6/0x1e0 [ 49.873877][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.874135][ C0] } [ 49.874216][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 49.874472][ C0] ... acquired at: [ 49.874601][ C0] __lock_acquire+0xaf0/0x1570 [ 49.874778][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.874954][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 49.875121][ C0] linkwatch_fire_event+0x74/0x200 [ 49.875281][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 49.875525][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 49.875760][ C0] dev_set_mac_address+0x28a/0x410 [ 49.875947][ C0] dev_set_mac_address_user+0x31/0x50 [ 49.876135][ C0] do_setlink+0x17b4/0x21e0 [ 49.876285][ C0] rtnl_setlink+0x1f7/0x310 [ 49.876440][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.876605][ C0] netlink_rcv_skb+0x130/0x360 [ 49.876753][ C0] netlink_unicast+0x449/0x710 [ 49.876909][ C0] netlink_sendmsg+0x723/0xbe0 [ 49.877065][ C0] __sys_sendto+0x37d/0x410 [ 49.877229][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 49.877394][ C0] do_syscall_64+0xc6/0x1e0 [ 49.877555][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.877757][ C0] [ 49.877840][ C0] -> (&br->lock){+.-.}-{2:2} { [ 49.878010][ C0] HARDIRQ-ON-W at: [ 49.878127][ C0] __lock_acquire+0x797/0x1570 [ 49.878329][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.878538][ C0] _raw_spin_lock_bh+0x38/0x50 [ 49.878723][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 49.879014][ C0] dev_set_mac_address+0x28a/0x410 [ 49.879256][ C0] dev_set_mac_address_user+0x31/0x50 [ 49.879456][ C0] do_setlink+0x17b4/0x21e0 [ 49.879674][ C0] rtnl_setlink+0x1f7/0x310 [ 49.879889][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.880087][ C0] netlink_rcv_skb+0x130/0x360 [ 49.880312][ C0] netlink_unicast+0x449/0x710 [ 49.880549][ C0] netlink_sendmsg+0x723/0xbe0 [ 49.880800][ C0] __sys_sendto+0x37d/0x410 [ 49.881002][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 49.881218][ C0] do_syscall_64+0xc6/0x1e0 [ 49.881427][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.881688][ C0] IN-SOFTIRQ-W at: [ 49.881838][ C0] __lock_acquire+0x797/0x1570 [ 49.882048][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.882251][ C0] _raw_spin_lock+0x30/0x40 [ 49.882488][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.882807][ C0] call_timer_fn+0x13b/0x230 [ 49.883052][ C0] __run_timers+0x545/0x810 [ 49.883262][ C0] run_timer_softirq+0xe8/0x1b0 [ 49.883478][ C0] __do_softirq+0x1f8/0x5df [ 49.883690][ C0] irq_exit_rcu+0x97/0xc0 [ 49.883903][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 49.884167][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 49.884426][ C0] default_idle+0xf/0x20 [ 49.884772][ C0] default_idle_call+0x6d/0xb0 [ 49.884975][ C0] cpuidle_idle_call+0x1f4/0x280 [ 49.885184][ C0] do_idle+0xf9/0x160 [ 49.885437][ C0] cpu_startup_entry+0x54/0x60 [ 49.885641][ C0] rest_init+0x14f/0x260 [ 49.885844][ C0] start_kernel+0x318/0x3d0 [ 49.886048][ C0] x86_64_start_reservations+0x18/0x30 [ 49.886350][ C0] x86_64_start_kernel+0xba/0x110 [ 49.886549][ C0] common_startup_64+0x12c/0x138 [ 49.886740][ C0] INITIAL USE at: [ 49.886957][ C0] __lock_acquire+0x797/0x1570 [ 49.887157][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.887352][ C0] _raw_spin_lock_bh+0x38/0x50 [ 49.887546][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 49.888011][ C0] dev_set_mac_address+0x28a/0x410 [ 49.888211][ C0] dev_set_mac_address_user+0x31/0x50 [ 49.888426][ C0] do_setlink+0x17b4/0x21e0 [ 49.888725][ C0] rtnl_setlink+0x1f7/0x310 [ 49.888918][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.889110][ C0] netlink_rcv_skb+0x130/0x360 [ 49.889393][ C0] netlink_unicast+0x449/0x710 [ 49.889590][ C0] netlink_sendmsg+0x723/0xbe0 [ 49.889780][ C0] __sys_sendto+0x37d/0x410 [ 49.889972][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 49.890320][ C0] do_syscall_64+0xc6/0x1e0 [ 49.890527][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.890788][ C0] } [ 49.890871][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 49.891205][ C0] ... acquired at: [ 49.891324][ C0] mark_lock+0x28d/0x3e0 [ 49.891490][ C0] mark_usage+0xd9/0x2a0 [ 49.891754][ C0] __lock_acquire+0x797/0x1570 [ 49.891945][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.892096][ C0] _raw_spin_lock+0x30/0x40 [ 49.892252][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.892576][ C0] call_timer_fn+0x13b/0x230 [ 49.892730][ C0] __run_timers+0x545/0x810 [ 49.892914][ C0] run_timer_softirq+0xe8/0x1b0 [ 49.893090][ C0] __do_softirq+0x1f8/0x5df [ 49.893238][ C0] irq_exit_rcu+0x97/0xc0 [ 49.893486][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 49.893710][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 49.893914][ C0] default_idle+0xf/0x20 [ 49.894168][ C0] default_idle_call+0x6d/0xb0 [ 49.894335][ C0] cpuidle_idle_call+0x1f4/0x280 [ 49.894493][ C0] do_idle+0xf9/0x160 [ 49.894622][ C0] cpu_startup_entry+0x54/0x60 [ 49.894789][ C0] rest_init+0x14f/0x260 [ 49.895049][ C0] start_kernel+0x318/0x3d0 [ 49.895215][ C0] x86_64_start_reservations+0x18/0x30 [ 49.895375][ C0] x86_64_start_kernel+0xba/0x110 [ 49.895542][ C0] common_startup_64+0x12c/0x138 [ 49.895803][ C0] [ 49.895882][ C0] [ 49.895882][ C0] stack backtrace: [ 49.896094][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 49.896341][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 49.896795][ C0] Call Trace: [ 49.896930][ C0] [ 49.897021][ C0] dump_stack_lvl+0x82/0xd0 [ 49.897195][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 49.897510][ C0] ? common_startup_64+0x12c/0x138 [ 49.897683][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 49.897890][ C0] ? __pfx_usage_skip+0x10/0x10 [ 49.898052][ C0] ? __pfx_usage_match+0x10/0x10 [ 49.898319][ C0] ? arch_stack_walk+0x8c/0xf0 [ 49.898485][ C0] mark_lock_irq+0x4cd/0xa10 [ 49.898656][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 49.898831][ C0] ? stack_trace_save+0x94/0xd0 [ 49.899128][ C0] ? save_trace+0x8f/0x5b0 [ 49.899295][ C0] mark_lock+0x28d/0x3e0 [ 49.899420][ C0] ? __pfx_validate_chain+0x10/0x10 [ 49.899582][ C0] mark_usage+0xd9/0x2a0 [ 49.899715][ C0] __lock_acquire+0x797/0x1570 [ 49.899885][ C0] ? __lock_acquire+0xaf0/0x1570 [ 49.900054][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 49.900367][ C0] lock_acquire.part.0+0xeb/0x330 [ 49.900720][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.900964][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 49.901129][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 49.901294][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.901628][ C0] ? lock_acquire+0x32/0xc0 [ 49.901791][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.902035][ C0] _raw_spin_lock+0x30/0x40 [ 49.902209][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.902579][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.902819][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 49.903246][ C0] call_timer_fn+0x13b/0x230 [ 49.903504][ C0] ? call_timer_fn+0xe8/0x230 [ 49.903670][ C0] ? call_timer_fn+0xe8/0x230 [ 49.903833][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 49.904003][ C0] ? mark_lock+0x38/0x3e0 [ 49.904131][ C0] __run_timers+0x545/0x810 [ 49.904394][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 49.904671][ C0] ? __pfx___run_timers+0x10/0x10 [ 49.904848][ C0] ? do_raw_spin_lock+0x131/0x270 [ 49.904996][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 49.905239][ C0] ? lock_acquire+0x32/0xc0 [ 49.905390][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 49.905544][ C0] run_timer_softirq+0xe8/0x1b0 [ 49.905693][ C0] __do_softirq+0x1f8/0x5df [ 49.905839][ C0] irq_exit_rcu+0x97/0xc0 [ 49.905950][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 49.906098][ C0] [ 49.906178][ C0] [ 49.906255][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 49.906534][ C0] RIP: 0010:default_idle+0xf/0x20 [ 49.906690][ 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 [ 49.907330][ C0] RSP: 0018:ffffffffa9a07e00 EFLAGS: 00000246 [ 49.907520][ C0] RAX: 00000000000a0835 RBX: 1ffffffff5340fc2 RCX: ffffffffa8b0e9d5 [ 49.907737][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa64aa4a4 [ 49.908082][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 49.908308][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 49.908526][ C0] R13: ffffffffa9a1d000 R14: dffffc0000000000 R15: 0000000000014770 [ 49.908844][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 49.909015][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 49.909164][ C0] default_idle_call+0x6d/0xb0 [ 49.909331][ C0] cpuidle_idle_call+0x1f4/0x280 [ 49.909589][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 49.909755][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 49.909902][ C0] do_idle+0xf9/0x160 [ 49.910030][ C0] cpu_startup_entry+0x54/0x60 [ 49.910290][ C0] rest_init+0x14f/0x260 [ 49.910403][ C0] start_kernel+0x318/0x3d0 [ 49.910554][ C0] x86_64_start_reservations+0x18/0x30 [ 49.910729][ C0] x86_64_start_kernel+0xba/0x110 [ 49.910893][ C0] common_startup_64+0x12c/0x138 [ 49.911153][ C0] [ 226.258830][ T1505] br0: port 2(veth2) entered disabled state [ 226.359053][ T1506] br0: port 1(veth1) entered disabled state [ 226.478463][ T1507] veth2: left allmulticast mode [ 226.478699][ T1507] veth2: left promiscuous mode [ 226.479012][ T1507] br0: port 2(veth2) entered disabled state [ 226.480212][ T1507] veth1: left allmulticast mode [ 226.480417][ T1507] veth1: left promiscuous mode [ 226.480691][ T1507] br0: port 1(veth1) entered disabled state