[ 26.597863][ T257] ip (257) used greatest stack depth: 23200 bytes left [ 31.666155][ T302] br1: port 1(veth1) entered blocking state [ 31.666718][ T302] br1: port 1(veth1) entered disabled state [ 31.667016][ T302] veth1: entered allmulticast mode [ 31.668890][ T302] veth1: entered promiscuous mode [ 31.787229][ T51] br1: port 1(veth1) entered blocking state [ 31.787640][ T51] br1: port 1(veth1) entered forwarding state [ 31.903002][ T304] br1: port 2(veth2) entered blocking state [ 31.903259][ T304] br1: port 2(veth2) entered disabled state [ 31.903534][ T304] veth2: entered allmulticast mode [ 31.905381][ T304] veth2: entered promiscuous mode [ 32.033024][ T8] br1: port 2(veth2) entered blocking state [ 32.033274][ T8] br1: port 2(veth2) entered forwarding state [ 32.389258][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 33.415669][ T318] GACT probability NOT on [ 42.238557][ T361] Mirror/redirect action on [ 46.913647][ C1] [ 46.913821][ C1] ======================================================== [ 46.914162][ C1] WARNING: possible irq lock inversion dependency detected [ 46.914494][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 46.914741][ C1] -------------------------------------------------------- [ 46.915101][ C1] swapper/1/0 just changed the state of lock: [ 46.915371][ C1] ffff888006302c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.915957][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 46.916284][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 46.916291][ C1] [ 46.916291][ C1] [ 46.916291][ C1] and interrupts could create inverse lock ordering between them. [ 46.916291][ C1] [ 46.917106][ C1] [ 46.917106][ C1] other info that might help us debug this: [ 46.917430][ C1] Chain exists of: [ 46.917430][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 46.917430][ C1] [ 46.917943][ C1] Possible interrupt unsafe locking scenario: [ 46.917943][ C1] [ 46.918281][ C1] CPU0 CPU1 [ 46.918502][ C1] ---- ---- [ 46.918726][ C1] lock(&p->alloc_lock); [ 46.918890][ C1] local_irq_disable(); [ 46.919152][ C1] lock(&br->lock); [ 46.919424][ C1] lock(lweventlist_lock); [ 46.919705][ C1] [ 46.919862][ C1] lock(&br->lock); [ 46.920030][ C1] [ 46.920030][ C1] *** DEADLOCK *** [ 46.920030][ C1] [ 46.920344][ C1] 1 lock held by swapper/1/0: [ 46.920577][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 46.921046][ C1] [ 46.921046][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 46.921424][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 46.921654][ C1] HARDIRQ-ON-W at: [ 46.921830][ C1] __lock_acquire+0x797/0x1570 [ 46.922116][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.922395][ C1] _raw_spin_lock+0x30/0x40 [ 46.922694][ C1] set_mems_allowed+0x1d/0x210 [ 46.922977][ C1] kernel_init_freeable+0x72/0x310 [ 46.923257][ C1] kernel_init+0x20/0x200 [ 46.923538][ C1] ret_from_fork+0x31/0x70 [ 46.923820][ C1] ret_from_fork_asm+0x1a/0x30 [ 46.924110][ C1] SOFTIRQ-ON-W at: [ 46.924288][ C1] __lock_acquire+0x797/0x1570 [ 46.924568][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.924850][ C1] _raw_spin_lock+0x30/0x40 [ 46.925134][ C1] set_mems_allowed+0x1d/0x210 [ 46.925401][ C1] kernel_init_freeable+0x72/0x310 [ 46.925667][ C1] kernel_init+0x20/0x200 [ 46.925923][ C1] ret_from_fork+0x31/0x70 [ 46.926206][ C1] ret_from_fork_asm+0x1a/0x30 [ 46.926483][ C1] INITIAL USE at: [ 46.926638][ C1] __lock_acquire+0x797/0x1570 [ 46.926927][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.927196][ C1] _raw_spin_lock+0x30/0x40 [ 46.927498][ C1] set_mems_allowed+0x1d/0x210 [ 46.927775][ C1] kernel_init_freeable+0x72/0x310 [ 46.928037][ C1] kernel_init+0x20/0x200 [ 46.928309][ C1] ret_from_fork+0x31/0x70 [ 46.928576][ C1] ret_from_fork_asm+0x1a/0x30 [ 46.928834][ C1] } [ 46.928949][ C1] ... key at: [] __key.387+0x0/0x40 [ 46.929265][ C1] ... acquired at: [ 46.929428][ C1] __lock_acquire+0xaf0/0x1570 [ 46.929644][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.929862][ C1] _raw_spin_lock+0x30/0x40 [ 46.930076][ C1] __get_task_comm+0x27/0x70 [ 46.930304][ C1] ref_tracker_alloc+0x2ee/0x490 [ 46.930503][ C1] linkwatch_fire_event+0x196/0x200 [ 46.930694][ C1] veth_newlink+0x367/0x830 [veth] [ 46.930885][ C1] rtnl_newlink_create+0x341/0x850 [ 46.931068][ C1] __rtnl_newlink+0xac9/0xd80 [ 46.931248][ C1] rtnl_newlink+0x63/0xa0 [ 46.931433][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.931616][ C1] netlink_rcv_skb+0x130/0x360 [ 46.932066][ C1] netlink_unicast+0x449/0x710 [ 46.932280][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.932480][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 46.932692][ C1] ___sys_sendmsg+0xee/0x170 [ 46.933012][ C1] __sys_sendmsg+0xcd/0x170 [ 46.933206][ C1] do_syscall_64+0xc6/0x1e0 [ 46.933405][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.933666][ C1] [ 46.933878][ C1] -> (lweventlist_lock){....}-{2:2} { [ 46.934072][ C1] INITIAL USE at: [ 46.934231][ C1] __lock_acquire+0x797/0x1570 [ 46.934483][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.934850][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.935101][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 46.935342][ C1] rtnl_getlink+0x4c9/0x970 [ 46.935572][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.935838][ C1] netlink_rcv_skb+0x130/0x360 [ 46.936044][ C1] netlink_unicast+0x449/0x710 [ 46.936212][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.936467][ C1] __sys_sendto+0x37d/0x410 [ 46.936646][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 46.936816][ C1] do_syscall_64+0xc6/0x1e0 [ 46.936991][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.937282][ C1] } [ 46.937351][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 46.937558][ C1] ... acquired at: [ 46.937660][ C1] __lock_acquire+0xaf0/0x1570 [ 46.937877][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.938015][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.938159][ C1] linkwatch_fire_event+0x74/0x200 [ 46.938306][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 46.938618][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 46.938829][ C1] dev_set_mac_address+0x28a/0x410 [ 46.938971][ C1] dev_set_mac_address_user+0x31/0x50 [ 46.939112][ C1] do_setlink+0x17b4/0x21e0 [ 46.939252][ C1] rtnl_setlink+0x1f7/0x310 [ 46.939390][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.939532][ C1] netlink_rcv_skb+0x130/0x360 [ 46.939668][ C1] netlink_unicast+0x449/0x710 [ 46.939884][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.940023][ C1] __sys_sendto+0x37d/0x410 [ 46.940165][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 46.940303][ C1] do_syscall_64+0xc6/0x1e0 [ 46.940525][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.940693][ C1] [ 46.940764][ C1] -> (&br->lock){+.-.}-{2:2} { [ 46.940911][ C1] HARDIRQ-ON-W at: [ 46.941014][ C1] __lock_acquire+0x797/0x1570 [ 46.941195][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.941378][ C1] _raw_spin_lock_bh+0x38/0x50 [ 46.941634][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 46.941964][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 46.942212][ C1] br_changelink+0x36c/0x1360 [bridge] [ 46.942517][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 46.942827][ C1] rtnl_newlink_create+0x341/0x850 [ 46.942999][ C1] __rtnl_newlink+0xac9/0xd80 [ 46.943260][ C1] rtnl_newlink+0x63/0xa0 [ 46.943435][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.943690][ C1] netlink_rcv_skb+0x130/0x360 [ 46.943861][ C1] netlink_unicast+0x449/0x710 [ 46.944040][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.944297][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 46.944470][ C1] ___sys_sendmsg+0xee/0x170 [ 46.944641][ C1] __sys_sendmsg+0xcd/0x170 [ 46.945102][ C1] do_syscall_64+0xc6/0x1e0 [ 46.945356][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.945563][ C1] IN-SOFTIRQ-W at: [ 46.945675][ C1] __lock_acquire+0x797/0x1570 [ 46.945854][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.946102][ C1] _raw_spin_lock+0x30/0x40 [ 46.946275][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.946603][ C1] call_timer_fn+0x13b/0x230 [ 46.946805][ C1] __run_timers+0x545/0x810 [ 46.946976][ C1] run_timer_softirq+0xe8/0x1b0 [ 46.947159][ C1] __do_softirq+0x1f8/0x5df [ 46.947415][ C1] irq_exit_rcu+0x97/0xc0 [ 46.947584][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.947872][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.948077][ C1] default_idle+0xf/0x20 [ 46.948257][ C1] default_idle_call+0x6d/0xb0 [ 46.948434][ C1] cpuidle_idle_call+0x1f4/0x280 [ 46.948709][ C1] do_idle+0xf9/0x160 [ 46.948847][ C1] cpu_startup_entry+0x54/0x60 [ 46.949025][ C1] start_secondary+0x21c/0x2b0 [ 46.949198][ C1] common_startup_64+0x12c/0x138 [ 46.949466][ C1] INITIAL USE at: [ 46.949570][ C1] __lock_acquire+0x797/0x1570 [ 46.949750][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.949922][ C1] _raw_spin_lock_bh+0x38/0x50 [ 46.950098][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 46.950341][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 46.950668][ C1] br_changelink+0x36c/0x1360 [bridge] [ 46.950879][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 46.951091][ C1] rtnl_newlink_create+0x341/0x850 [ 46.951263][ C1] __rtnl_newlink+0xac9/0xd80 [ 46.951441][ C1] rtnl_newlink+0x63/0xa0 [ 46.951614][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.951786][ C1] netlink_rcv_skb+0x130/0x360 [ 46.952034][ C1] netlink_unicast+0x449/0x710 [ 46.952216][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.952386][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 46.952559][ C1] ___sys_sendmsg+0xee/0x170 [ 46.952813][ C1] __sys_sendmsg+0xcd/0x170 [ 46.952986][ C1] do_syscall_64+0xc6/0x1e0 [ 46.953164][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.953532][ C1] } [ 46.953602][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 46.953877][ C1] ... acquired at: [ 46.953976][ C1] mark_lock+0x28d/0x3e0 [ 46.954184][ C1] mark_usage+0xd9/0x2a0 [ 46.954317][ C1] __lock_acquire+0x797/0x1570 [ 46.954452][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.954587][ C1] _raw_spin_lock+0x30/0x40 [ 46.954798][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.955024][ C1] call_timer_fn+0x13b/0x230 [ 46.955160][ C1] __run_timers+0x545/0x810 [ 46.955301][ C1] run_timer_softirq+0xe8/0x1b0 [ 46.955522][ C1] __do_softirq+0x1f8/0x5df [ 46.955656][ C1] irq_exit_rcu+0x97/0xc0 [ 46.955795][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.955970][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.956148][ C1] default_idle+0xf/0x20 [ 46.956285][ C1] default_idle_call+0x6d/0xb0 [ 46.956430][ C1] cpuidle_idle_call+0x1f4/0x280 [ 46.956574][ C1] do_idle+0xf9/0x160 [ 46.956681][ C1] cpu_startup_entry+0x54/0x60 [ 46.956828][ C1] start_secondary+0x21c/0x2b0 [ 46.956969][ C1] common_startup_64+0x12c/0x138 [ 46.957109][ C1] [ 46.957178][ C1] [ 46.957178][ C1] stack backtrace: [ 46.957356][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 46.957571][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 46.957961][ C1] Call Trace: [ 46.958069][ C1] [ 46.958143][ C1] dump_stack_lvl+0x82/0xd0 [ 46.958290][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 46.958466][ C1] ? common_startup_64+0x12c/0x138 [ 46.958682][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 46.958860][ C1] ? __pfx_usage_skip+0x10/0x10 [ 46.959006][ C1] ? __pfx_usage_match+0x10/0x10 [ 46.959141][ C1] ? arch_stack_walk+0x8c/0xf0 [ 46.959352][ C1] mark_lock_irq+0x4cd/0xa10 [ 46.959492][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 46.959628][ C1] ? stack_trace_save+0x94/0xd0 [ 46.959769][ C1] ? add_chain_cache+0x248/0x8b0 [ 46.959984][ C1] ? save_trace+0x8f/0x5b0 [ 46.960130][ C1] mark_lock+0x28d/0x3e0 [ 46.960241][ C1] mark_usage+0xd9/0x2a0 [ 46.960363][ C1] __lock_acquire+0x797/0x1570 [ 46.960508][ C1] ? __lock_acquire+0xaf0/0x1570 [ 46.960722][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.960966][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.961106][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.961318][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 46.961544][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 46.961683][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.961894][ C1] ? lock_acquire+0x32/0xc0 [ 46.962031][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.962310][ C1] _raw_spin_lock+0x30/0x40 [ 46.962446][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.962651][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.962939][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.963184][ C1] call_timer_fn+0x13b/0x230 [ 46.963326][ C1] ? call_timer_fn+0xe8/0x230 [ 46.963461][ C1] ? call_timer_fn+0xe8/0x230 [ 46.963684][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 46.963817][ C1] ? mark_lock+0x38/0x3e0 [ 46.963920][ C1] __run_timers+0x545/0x810 [ 46.964056][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.964378][ C1] ? __pfx___run_timers+0x10/0x10 [ 46.964525][ C1] ? do_raw_spin_lock+0x131/0x270 [ 46.964662][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 46.964822][ C1] ? lock_acquire+0x32/0xc0 [ 46.965036][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 46.965174][ C1] run_timer_softirq+0xe8/0x1b0 [ 46.965309][ C1] __do_softirq+0x1f8/0x5df [ 46.965444][ C1] irq_exit_rcu+0x97/0xc0 [ 46.965547][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.965759][ C1] [ 46.965834][ C1] [ 46.965904][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.966075][ C1] RIP: 0010:default_idle+0xf/0x20 [ 46.966235][ 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 [ 46.966865][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 46.967118][ C1] RAX: 000000000009de09 RBX: 1ffff92000029fc1 RCX: ffffffff99d0e9d5 [ 46.967319][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff976aa4a4 [ 46.967518][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 46.967806][ C1] R10: ffff8880360b84e3 R11: ffff8880360bdc80 R12: 0000000000000000 [ 46.968010][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 46.968219][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 46.968431][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 46.968576][ C1] default_idle_call+0x6d/0xb0 [ 46.968724][ C1] cpuidle_idle_call+0x1f4/0x280 [ 46.968864][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 46.969102][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 46.969246][ C1] do_idle+0xf9/0x160 [ 46.969359][ C1] cpu_startup_entry+0x54/0x60 [ 46.969502][ C1] start_secondary+0x21c/0x2b0 [ 46.969644][ C1] ? __pfx_start_secondary+0x10/0x10 [ 46.969867][ C1] common_startup_64+0x12c/0x138 [ 46.970011][ C1] [ 78.450909][ T533] br1: port 1(veth1) entered disabled state [ 78.559725][ T534] br1: port 2(veth2) entered disabled state [ 78.664767][ T535] veth2: left allmulticast mode [ 78.664959][ T535] veth2: left promiscuous mode [ 78.665224][ T535] br1: port 2(veth2) entered disabled state [ 78.666295][ T535] veth1: left allmulticast mode [ 78.666452][ T535] veth1: left promiscuous mode [ 78.667373][ T535] br1: port 1(veth1) entered disabled state