[ 29.426740][ T304] br1: port 1(veth1) entered blocking state [ 29.428344][ T304] br1: port 1(veth1) entered disabled state [ 29.428738][ T304] veth1: entered allmulticast mode [ 29.430657][ T304] veth1: entered promiscuous mode [ 29.552287][ T49] br1: port 1(veth1) entered blocking state [ 29.552753][ T49] br1: port 1(veth1) entered forwarding state [ 29.676804][ T306] br1: port 2(veth2) entered blocking state [ 29.677142][ T306] br1: port 2(veth2) entered disabled state [ 29.677437][ T306] veth2: entered allmulticast mode [ 29.679600][ T306] veth2: entered promiscuous mode [ 29.800334][ T49] br1: port 2(veth2) entered blocking state [ 29.800853][ T49] br1: port 2(veth2) entered forwarding state [ 30.148375][ T310] 8021q: 802.1Q VLAN Support v1.8 [ 31.126006][ T320] GACT probability NOT on [ 39.868359][ T361] Mirror/redirect action on [ 44.840034][ C1] [ 44.840201][ C1] ======================================================== [ 44.840432][ C1] WARNING: possible irq lock inversion dependency detected [ 44.840645][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 44.840788][ C1] -------------------------------------------------------- [ 44.841004][ C1] swapper/1/0 just changed the state of lock: [ 44.841183][ C1] ffff88800567ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.841555][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.841770][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 44.841775][ C1] [ 44.841775][ C1] [ 44.841775][ C1] and interrupts could create inverse lock ordering between them. [ 44.841775][ C1] [ 44.842296][ C1] [ 44.842296][ C1] other info that might help us debug this: [ 44.842514][ C1] Chain exists of: [ 44.842514][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.842514][ C1] [ 44.842850][ C1] Possible interrupt unsafe locking scenario: [ 44.842850][ C1] [ 44.843064][ C1] CPU0 CPU1 [ 44.843210][ C1] ---- ---- [ 44.843358][ C1] lock(&p->alloc_lock); [ 44.843468][ C1] local_irq_disable(); [ 44.843647][ C1] lock(&br->lock); [ 44.843825][ C1] lock(lweventlist_lock); [ 44.844020][ C1] [ 44.844130][ C1] lock(&br->lock); [ 44.844240][ C1] [ 44.844240][ C1] *** DEADLOCK *** [ 44.844240][ C1] [ 44.844451][ C1] 1 lock held by swapper/1/0: [ 44.844594][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.844900][ C1] [ 44.844900][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 44.845149][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.845299][ C1] HARDIRQ-ON-W at: [ 44.845411][ C1] __lock_acquire+0x797/0x1570 [ 44.845600][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.845796][ C1] _raw_spin_lock+0x30/0x40 [ 44.845982][ C1] set_mems_allowed+0x1d/0x210 [ 44.846171][ C1] kernel_init_freeable+0x72/0x310 [ 44.846361][ C1] kernel_init+0x20/0x200 [ 44.846546][ C1] ret_from_fork+0x31/0x70 [ 44.846734][ C1] ret_from_fork_asm+0x1a/0x30 [ 44.846916][ C1] SOFTIRQ-ON-W at: [ 44.847026][ C1] __lock_acquire+0x797/0x1570 [ 44.847206][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.847396][ C1] _raw_spin_lock+0x30/0x40 [ 44.847579][ C1] set_mems_allowed+0x1d/0x210 [ 44.847759][ C1] kernel_init_freeable+0x72/0x310 [ 44.847947][ C1] kernel_init+0x20/0x200 [ 44.848128][ C1] ret_from_fork+0x31/0x70 [ 44.848309][ C1] ret_from_fork_asm+0x1a/0x30 [ 44.848495][ C1] INITIAL USE at: [ 44.848606][ C1] __lock_acquire+0x797/0x1570 [ 44.848789][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.848972][ C1] _raw_spin_lock+0x30/0x40 [ 44.849156][ C1] set_mems_allowed+0x1d/0x210 [ 44.849337][ C1] kernel_init_freeable+0x72/0x310 [ 44.849521][ C1] kernel_init+0x20/0x200 [ 44.849703][ C1] ret_from_fork+0x31/0x70 [ 44.849887][ C1] ret_from_fork_asm+0x1a/0x30 [ 44.850071][ C1] } [ 44.850146][ C1] ... key at: [] __key.387+0x0/0x40 [ 44.850368][ C1] ... acquired at: [ 44.850479][ C1] __lock_acquire+0xaf0/0x1570 [ 44.850624][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.850774][ C1] _raw_spin_lock+0x30/0x40 [ 44.850919][ C1] __get_task_comm+0x27/0x70 [ 44.851068][ C1] ref_tracker_alloc+0x2ee/0x490 [ 44.851222][ C1] linkwatch_fire_event+0x196/0x200 [ 44.851371][ C1] veth_newlink+0x367/0x830 [veth] [ 44.851527][ C1] rtnl_newlink_create+0x341/0x850 [ 44.851674][ C1] __rtnl_newlink+0xac9/0xd80 [ 44.851821][ C1] rtnl_newlink+0x63/0xa0 [ 44.851966][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.852111][ C1] netlink_rcv_skb+0x130/0x360 [ 44.852257][ C1] netlink_unicast+0x449/0x710 [ 44.852406][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.852554][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 44.852703][ C1] ___sys_sendmsg+0xee/0x170 [ 44.852850][ C1] __sys_sendmsg+0xcd/0x170 [ 44.852998][ C1] do_syscall_64+0xc6/0x1e0 [ 44.853149][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.853330][ C1] [ 44.853403][ C1] -> (lweventlist_lock){....}-{2:2} { [ 44.853553][ C1] INITIAL USE at: [ 44.853663][ C1] __lock_acquire+0x797/0x1570 [ 44.853844][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.854025][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.854214][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 44.854397][ C1] rtnl_getlink+0x4c9/0x970 [ 44.854580][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.854761][ C1] netlink_rcv_skb+0x130/0x360 [ 44.854945][ C1] netlink_unicast+0x449/0x710 [ 44.855127][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.855312][ C1] __sys_sendto+0x37d/0x410 [ 44.855495][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 44.855687][ C1] do_syscall_64+0xc6/0x1e0 [ 44.855866][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.856089][ C1] } [ 44.856162][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.856376][ C1] ... acquired at: [ 44.856487][ C1] __lock_acquire+0xaf0/0x1570 [ 44.856635][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.856783][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.856929][ C1] linkwatch_fire_event+0x74/0x200 [ 44.857075][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.857300][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.857518][ C1] dev_set_mac_address+0x28a/0x410 [ 44.857669][ C1] dev_set_mac_address_user+0x31/0x50 [ 44.857814][ C1] do_setlink+0x17b4/0x21e0 [ 44.857958][ C1] rtnl_setlink+0x1f7/0x310 [ 44.858108][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.858253][ C1] netlink_rcv_skb+0x130/0x360 [ 44.858397][ C1] netlink_unicast+0x449/0x710 [ 44.858542][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.858690][ C1] __sys_sendto+0x37d/0x410 [ 44.858833][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 44.858983][ C1] do_syscall_64+0xc6/0x1e0 [ 44.859128][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.859308][ C1] [ 44.859380][ C1] -> (&br->lock){+.-.}-{2:2} { [ 44.859530][ C1] HARDIRQ-ON-W at: [ 44.859638][ C1] __lock_acquire+0x797/0x1570 [ 44.859824][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.860011][ C1] _raw_spin_lock_bh+0x38/0x50 [ 44.860198][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 44.860456][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.860710][ C1] br_changelink+0x36c/0x1360 [bridge] [ 44.860926][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 44.861143][ C1] rtnl_newlink_create+0x341/0x850 [ 44.861325][ C1] __rtnl_newlink+0xac9/0xd80 [ 44.861510][ C1] rtnl_newlink+0x63/0xa0 [ 44.861689][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.861873][ C1] netlink_rcv_skb+0x130/0x360 [ 44.862052][ C1] netlink_unicast+0x449/0x710 [ 44.862233][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.862412][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 44.862596][ C1] ___sys_sendmsg+0xee/0x170 [ 44.862776][ C1] __sys_sendmsg+0xcd/0x170 [ 44.862957][ C1] do_syscall_64+0xc6/0x1e0 [ 44.863141][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.863357][ C1] IN-SOFTIRQ-W at: [ 44.863466][ C1] __lock_acquire+0x797/0x1570 [ 44.863647][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.863834][ C1] _raw_spin_lock+0x30/0x40 [ 44.864018][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.864272][ C1] call_timer_fn+0x13b/0x230 [ 44.864457][ C1] __run_timers+0x545/0x810 [ 44.864639][ C1] run_timer_softirq+0xe8/0x1b0 [ 44.864820][ C1] __do_softirq+0x1f8/0x5df [ 44.865009][ C1] irq_exit_rcu+0x97/0xc0 [ 44.865192][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.865418][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.865651][ C1] default_idle+0xf/0x20 [ 44.865833][ C1] default_idle_call+0x6d/0xb0 [ 44.866016][ C1] cpuidle_idle_call+0x1f4/0x280 [ 44.866201][ C1] do_idle+0xf9/0x160 [ 44.866353][ C1] cpu_startup_entry+0x54/0x60 [ 44.866538][ C1] start_secondary+0x21c/0x2b0 [ 44.866725][ C1] common_startup_64+0x12c/0x138 [ 44.866912][ C1] INITIAL USE at: [ 44.867021][ C1] __lock_acquire+0x797/0x1570 [ 44.867203][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.867389][ C1] _raw_spin_lock_bh+0x38/0x50 [ 44.867571][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 44.867828][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.868088][ C1] br_changelink+0x36c/0x1360 [bridge] [ 44.868308][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 44.868527][ C1] rtnl_newlink_create+0x341/0x850 [ 44.868712][ C1] __rtnl_newlink+0xac9/0xd80 [ 44.868892][ C1] rtnl_newlink+0x63/0xa0 [ 44.869072][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.869253][ C1] netlink_rcv_skb+0x130/0x360 [ 44.869434][ C1] netlink_unicast+0x449/0x710 [ 44.869614][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.869794][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 44.869980][ C1] ___sys_sendmsg+0xee/0x170 [ 44.870163][ C1] __sys_sendmsg+0xcd/0x170 [ 44.870343][ C1] do_syscall_64+0xc6/0x1e0 [ 44.870524][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.870739][ C1] } [ 44.870893][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.871178][ C1] ... acquired at: [ 44.871291][ C1] mark_lock+0x28d/0x3e0 [ 44.871437][ C1] mark_usage+0xd9/0x2a0 [ 44.871582][ C1] __lock_acquire+0x797/0x1570 [ 44.871727][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.871872][ C1] _raw_spin_lock+0x30/0x40 [ 44.872017][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.872310][ C1] call_timer_fn+0x13b/0x230 [ 44.872454][ C1] __run_timers+0x545/0x810 [ 44.872602][ C1] run_timer_softirq+0xe8/0x1b0 [ 44.872747][ C1] __do_softirq+0x1f8/0x5df [ 44.873039][ C1] irq_exit_rcu+0x97/0xc0 [ 44.873185][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.873363][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.873542][ C1] default_idle+0xf/0x20 [ 44.873762][ C1] default_idle_call+0x6d/0xb0 [ 44.873906][ C1] cpuidle_idle_call+0x1f4/0x280 [ 44.874055][ C1] do_idle+0xf9/0x160 [ 44.874163][ C1] cpu_startup_entry+0x54/0x60 [ 44.874306][ C1] start_secondary+0x21c/0x2b0 [ 44.874527][ C1] common_startup_64+0x12c/0x138 [ 44.874671][ C1] [ 44.874743][ C1] [ 44.874743][ C1] stack backtrace: [ 44.874920][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 44.875220][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.875547][ C1] Call Trace: [ 44.875666][ C1] [ 44.875827][ C1] dump_stack_lvl+0x82/0xd0 [ 44.875979][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.876160][ C1] ? common_startup_64+0x12c/0x138 [ 44.876304][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.876563][ C1] ? __pfx_usage_skip+0x10/0x10 [ 44.876713][ C1] ? __pfx_usage_match+0x10/0x10 [ 44.876858][ C1] ? arch_stack_walk+0x8c/0xf0 [ 44.877005][ C1] mark_lock_irq+0x4cd/0xa10 [ 44.877226][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.877372][ C1] ? stack_trace_save+0x94/0xd0 [ 44.877518][ C1] ? add_chain_cache+0x248/0x8b0 [ 44.877665][ C1] ? save_trace+0x8f/0x5b0 [ 44.877814][ C1] mark_lock+0x28d/0x3e0 [ 44.878003][ C1] mark_usage+0xd9/0x2a0 [ 44.878122][ C1] __lock_acquire+0x797/0x1570 [ 44.878271][ C1] ? __lock_acquire+0xaf0/0x1570 [ 44.878416][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.878668][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.878813][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.879038][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.879182][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 44.879401][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.879619][ C1] ? lock_acquire+0x32/0xc0 [ 44.879762][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.879983][ C1] _raw_spin_lock+0x30/0x40 [ 44.880203][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.880417][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.880632][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.880966][ C1] call_timer_fn+0x13b/0x230 [ 44.881109][ C1] ? call_timer_fn+0xe8/0x230 [ 44.881252][ C1] ? call_timer_fn+0xe8/0x230 [ 44.881396][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 44.881539][ C1] ? mark_lock+0x38/0x3e0 [ 44.881650][ C1] __run_timers+0x545/0x810 [ 44.881791][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.882041][ C1] ? __pfx___run_timers+0x10/0x10 [ 44.882269][ C1] ? do_raw_spin_lock+0x131/0x270 [ 44.882414][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.882557][ C1] ? lock_acquire+0x32/0xc0 [ 44.882700][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 44.882923][ C1] run_timer_softirq+0xe8/0x1b0 [ 44.883069][ C1] __do_softirq+0x1f8/0x5df [ 44.883218][ C1] irq_exit_rcu+0x97/0xc0 [ 44.883328][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.883469][ C1] [ 44.883543][ C1] [ 44.883610][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.883773][ C1] RIP: 0010:default_idle+0xf/0x20 [ 44.883920][ 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 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 44.884556][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 44.884730][ C1] RAX: 000000000009afed RBX: 1ffff92000029fc1 RCX: ffffffffa530e9d5 [ 44.885008][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa2caa4a4 [ 44.885206][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 44.885405][ C1] R10: ffff8880360b84e3 R11: ffff8880360ad9b0 R12: 0000000000000000 [ 44.885691][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 44.885895][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.886029][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 44.886238][ C1] default_idle_call+0x6d/0xb0 [ 44.886373][ C1] cpuidle_idle_call+0x1f4/0x280 [ 44.886506][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.886639][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.886775][ C1] do_idle+0xf9/0x160 [ 44.886956][ C1] cpu_startup_entry+0x54/0x60 [ 44.887093][ C1] start_secondary+0x21c/0x2b0 [ 44.887225][ C1] ? __pfx_start_secondary+0x10/0x10 [ 44.887362][ C1] common_startup_64+0x12c/0x138 [ 44.887499][ C1] [ 75.064715][ T533] br1: port 1(veth1) entered disabled state [ 75.177580][ T534] br1: port 2(veth2) entered disabled state [ 75.281071][ T536] veth2: left allmulticast mode [ 75.281283][ T536] veth2: left promiscuous mode [ 75.281582][ T536] br1: port 2(veth2) entered disabled state [ 75.282808][ T536] veth1: left allmulticast mode [ 75.282986][ T536] veth1: left promiscuous mode [ 75.283274][ T536] br1: port 1(veth1) entered disabled state