[ 28.245600][ T283] 8021q: 802.1Q VLAN Support v1.8 [ 32.244672][ T325] GACT probability NOT on [ 33.673416][ T340] br10: port 1(veth1.10) entered blocking state [ 33.674003][ T340] br10: port 1(veth1.10) entered disabled state [ 33.674880][ T340] veth1.10: entered allmulticast mode [ 33.675136][ T340] veth1: entered allmulticast mode [ 33.678372][ T340] veth1.10: entered promiscuous mode [ 33.678643][ T340] veth1: entered promiscuous mode [ 34.234966][ T345] br11: port 1(veth1.11) entered blocking state [ 34.235241][ T345] br11: port 1(veth1.11) entered disabled state [ 34.235503][ T345] veth1.11: entered allmulticast mode [ 34.237464][ T345] veth1.11: entered promiscuous mode [ 35.110698][ T354] br10: port 2(veth2.10) entered blocking state [ 35.110975][ T354] br10: port 2(veth2.10) entered disabled state [ 35.111273][ T354] veth2.10: entered allmulticast mode [ 35.111436][ T354] veth2: entered allmulticast mode [ 35.113489][ T354] veth2.10: entered promiscuous mode [ 35.113748][ T354] veth2: entered promiscuous mode [ 35.602809][ T360] br11: port 2(veth2.11) entered blocking state [ 35.603514][ T360] br11: port 2(veth2.11) entered disabled state [ 35.616390][ T360] veth2.11: entered allmulticast mode [ 35.618581][ T360] veth2.11: entered promiscuous mode [ 36.143477][ T364] br10: port 2(veth2.10) entered blocking state [ 36.143986][ T364] br10: port 2(veth2.10) entered forwarding state [ 36.145181][ T364] br10: port 1(veth1.10) entered blocking state [ 36.145563][ T364] br10: port 1(veth1.10) entered forwarding state [ 36.268946][ T365] br11: port 2(veth2.11) entered blocking state [ 36.269237][ T365] br11: port 2(veth2.11) entered forwarding state [ 36.269672][ T365] br11: port 1(veth1.11) entered blocking state [ 36.269911][ T365] br11: port 1(veth1.11) entered forwarding state [ 51.497958][ C1] [ 51.498103][ C1] ======================================================== [ 51.498345][ C1] WARNING: possible irq lock inversion dependency detected [ 51.498543][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 51.498691][ C1] -------------------------------------------------------- [ 51.498894][ C1] swapper/1/0 just changed the state of lock: [ 51.499091][ C1] ffff888006aeac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.499445][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 51.499659][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 51.499664][ C1] [ 51.499664][ C1] [ 51.499664][ C1] and interrupts could create inverse lock ordering between them. [ 51.499664][ C1] [ 51.500183][ C1] [ 51.500183][ C1] other info that might help us debug this: [ 51.500410][ C1] Chain exists of: [ 51.500410][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 51.500410][ C1] [ 51.500738][ C1] Possible interrupt unsafe locking scenario: [ 51.500738][ C1] [ 51.500967][ C1] CPU0 CPU1 [ 51.501117][ C1] ---- ---- [ 51.501305][ C1] lock(&p->alloc_lock); [ 51.501420][ C1] local_irq_disable(); [ 51.501589][ C1] lock(&br->lock); [ 51.501770][ C1] lock(lweventlist_lock); [ 51.501957][ C1] [ 51.502067][ C1] lock(&br->lock); [ 51.502180][ C1] [ 51.502180][ C1] *** DEADLOCK *** [ 51.502180][ C1] [ 51.502399][ C1] 1 lock held by swapper/1/0: [ 51.502545][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 51.502848][ C1] [ 51.502848][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 51.503087][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 51.503229][ C1] HARDIRQ-ON-W at: [ 51.503334][ C1] __lock_acquire+0x797/0x1570 [ 51.503517][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.503691][ C1] _raw_spin_lock+0x30/0x40 [ 51.503869][ C1] set_mems_allowed+0x1d/0x210 [ 51.504043][ C1] kernel_init_freeable+0x72/0x310 [ 51.504220][ C1] kernel_init+0x20/0x200 [ 51.504392][ C1] ret_from_fork+0x31/0x70 [ 51.504571][ C1] ret_from_fork_asm+0x1a/0x30 [ 51.504749][ C1] SOFTIRQ-ON-W at: [ 51.504853][ C1] __lock_acquire+0x797/0x1570 [ 51.505027][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.505202][ C1] _raw_spin_lock+0x30/0x40 [ 51.505381][ C1] set_mems_allowed+0x1d/0x210 [ 51.505555][ C1] kernel_init_freeable+0x72/0x310 [ 51.505733][ C1] kernel_init+0x20/0x200 [ 51.505907][ C1] ret_from_fork+0x31/0x70 [ 51.506076][ C1] ret_from_fork_asm+0x1a/0x30 [ 51.506244][ C1] INITIAL USE at: [ 51.506351][ C1] __lock_acquire+0x797/0x1570 [ 51.506523][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.506692][ C1] _raw_spin_lock+0x30/0x40 [ 51.506889][ C1] set_mems_allowed+0x1d/0x210 [ 51.507063][ C1] kernel_init_freeable+0x72/0x310 [ 51.507254][ C1] kernel_init+0x20/0x200 [ 51.507426][ C1] ret_from_fork+0x31/0x70 [ 51.507640][ C1] ret_from_fork_asm+0x1a/0x30 [ 51.507815][ C1] } [ 51.507885][ C1] ... key at: [] __key.387+0x0/0x40 [ 51.508091][ C1] ... acquired at: [ 51.508193][ C1] __lock_acquire+0xaf0/0x1570 [ 51.508332][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.508475][ C1] _raw_spin_lock+0x30/0x40 [ 51.508616][ C1] __get_task_comm+0x27/0x70 [ 51.508782][ C1] ref_tracker_alloc+0x2ee/0x490 [ 51.508941][ C1] linkwatch_fire_event+0x196/0x200 [ 51.509078][ C1] veth_newlink+0x367/0x830 [veth] [ 51.509275][ C1] rtnl_newlink_create+0x341/0x850 [ 51.509429][ C1] __rtnl_newlink+0xac9/0xd80 [ 51.509591][ C1] rtnl_newlink+0x63/0xa0 [ 51.509745][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.509917][ C1] netlink_rcv_skb+0x130/0x360 [ 51.510089][ C1] netlink_unicast+0x449/0x710 [ 51.510259][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.510402][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 51.510574][ C1] ___sys_sendmsg+0xee/0x170 [ 51.510722][ C1] __sys_sendmsg+0xcd/0x170 [ 51.510856][ C1] do_syscall_64+0xc6/0x1e0 [ 51.511012][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.511187][ C1] [ 51.511256][ C1] -> (lweventlist_lock){....}-{2:2} { [ 51.511421][ C1] INITIAL USE at: [ 51.511522][ C1] __lock_acquire+0x797/0x1570 [ 51.511735][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.511905][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 51.512072][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 51.512240][ C1] rtnl_getlink+0x4c9/0x970 [ 51.512409][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.512574][ C1] netlink_rcv_skb+0x130/0x360 [ 51.512772][ C1] netlink_unicast+0x449/0x710 [ 51.512940][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.513133][ C1] __sys_sendto+0x37d/0x410 [ 51.513305][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 51.513494][ C1] do_syscall_64+0xc6/0x1e0 [ 51.513683][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.513896][ C1] } [ 51.513990][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 51.514193][ C1] ... acquired at: [ 51.514336][ C1] __lock_acquire+0xaf0/0x1570 [ 51.514473][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.514620][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 51.514779][ C1] linkwatch_fire_event+0x74/0x200 [ 51.514914][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 51.515149][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 51.515374][ C1] dev_set_mac_address+0x28a/0x410 [ 51.515519][ C1] dev_set_mac_address_user+0x31/0x50 [ 51.515652][ C1] do_setlink+0x17b4/0x21e0 [ 51.515790][ C1] rtnl_setlink+0x1f7/0x310 [ 51.515929][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.516068][ C1] netlink_rcv_skb+0x130/0x360 [ 51.516203][ C1] netlink_unicast+0x449/0x710 [ 51.516369][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.516507][ C1] __sys_sendto+0x37d/0x410 [ 51.516659][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 51.516823][ C1] do_syscall_64+0xc6/0x1e0 [ 51.516970][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.517165][ C1] [ 51.517241][ C1] -> (&br->lock){+.-.}-{2:2} { [ 51.517413][ C1] HARDIRQ-ON-W at: [ 51.517536][ C1] __lock_acquire+0x797/0x1570 [ 51.517740][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.517925][ C1] _raw_spin_lock_bh+0x38/0x50 [ 51.518163][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 51.518421][ C1] dev_set_mac_address+0x28a/0x410 [ 51.518626][ C1] dev_set_mac_address_user+0x31/0x50 [ 51.518801][ C1] do_setlink+0x17b4/0x21e0 [ 51.518987][ C1] rtnl_setlink+0x1f7/0x310 [ 51.519157][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.519359][ C1] netlink_rcv_skb+0x130/0x360 [ 51.519532][ C1] netlink_unicast+0x449/0x710 [ 51.519705][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.519873][ C1] __sys_sendto+0x37d/0x410 [ 51.520044][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 51.520213][ C1] do_syscall_64+0xc6/0x1e0 [ 51.520408][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.520623][ C1] IN-SOFTIRQ-W at: [ 51.520749][ C1] __lock_acquire+0x797/0x1570 [ 51.520926][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.521119][ C1] _raw_spin_lock+0x30/0x40 [ 51.521310][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.521580][ C1] call_timer_fn+0x13b/0x230 [ 51.521835][ C1] __run_timers+0x545/0x810 [ 51.522025][ C1] run_timer_softirq+0xe8/0x1b0 [ 51.522229][ C1] __do_softirq+0x1f8/0x5df [ 51.522420][ C1] irq_exit_rcu+0x97/0xc0 [ 51.522617][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 51.522877][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 51.523089][ C1] default_idle+0xf/0x20 [ 51.523289][ C1] default_idle_call+0x6d/0xb0 [ 51.523483][ C1] cpuidle_idle_call+0x1f4/0x280 [ 51.523672][ C1] do_idle+0xf9/0x160 [ 51.523807][ C1] cpu_startup_entry+0x54/0x60 [ 51.523996][ C1] start_secondary+0x21c/0x2b0 [ 51.524166][ C1] common_startup_64+0x12c/0x138 [ 51.524333][ C1] INITIAL USE at: [ 51.524436][ C1] __lock_acquire+0x797/0x1570 [ 51.524613][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.524782][ C1] _raw_spin_lock_bh+0x38/0x50 [ 51.524952][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 51.525215][ C1] dev_set_mac_address+0x28a/0x410 [ 51.525386][ C1] dev_set_mac_address_user+0x31/0x50 [ 51.525583][ C1] do_setlink+0x17b4/0x21e0 [ 51.525780][ C1] rtnl_setlink+0x1f7/0x310 [ 51.525963][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 51.526146][ C1] netlink_rcv_skb+0x130/0x360 [ 51.526323][ C1] netlink_unicast+0x449/0x710 [ 51.526573][ C1] netlink_sendmsg+0x723/0xbe0 [ 51.526764][ C1] __sys_sendto+0x37d/0x410 [ 51.526983][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 51.527254][ C1] do_syscall_64+0xc6/0x1e0 [ 51.527456][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 51.527672][ C1] } [ 51.527741][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 51.528105][ C1] ... acquired at: [ 51.528205][ C1] mark_lock+0x28d/0x3e0 [ 51.528338][ C1] mark_usage+0xd9/0x2a0 [ 51.528473][ C1] __lock_acquire+0x797/0x1570 [ 51.528689][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.528823][ C1] _raw_spin_lock+0x30/0x40 [ 51.528958][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.529162][ C1] call_timer_fn+0x13b/0x230 [ 51.529375][ C1] __run_timers+0x545/0x810 [ 51.529511][ C1] run_timer_softirq+0xe8/0x1b0 [ 51.529644][ C1] __do_softirq+0x1f8/0x5df [ 51.529777][ C1] irq_exit_rcu+0x97/0xc0 [ 51.529991][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 51.530155][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 51.530318][ C1] default_idle+0xf/0x20 [ 51.530453][ C1] default_idle_call+0x6d/0xb0 [ 51.530661][ C1] cpuidle_idle_call+0x1f4/0x280 [ 51.530795][ C1] do_idle+0xf9/0x160 [ 51.530912][ C1] cpu_startup_entry+0x54/0x60 [ 51.531043][ C1] start_secondary+0x21c/0x2b0 [ 51.531344][ C1] common_startup_64+0x12c/0x138 [ 51.531478][ C1] [ 51.531545][ C1] [ 51.531545][ C1] stack backtrace: [ 51.531713][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 51.531993][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 51.532289][ C1] Call Trace: [ 51.532401][ C1] [ 51.532485][ C1] dump_stack_lvl+0x82/0xd0 [ 51.532715][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 51.532908][ C1] ? common_startup_64+0x12c/0x138 [ 51.533058][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 51.533258][ C1] ? __pfx_usage_skip+0x10/0x10 [ 51.533513][ C1] ? __pfx_usage_match+0x10/0x10 [ 51.533664][ C1] ? arch_stack_walk+0x8c/0xf0 [ 51.533809][ C1] mark_lock_irq+0x4cd/0xa10 [ 51.533956][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 51.534169][ C1] ? stack_trace_save+0x94/0xd0 [ 51.534306][ C1] ? save_trace+0x8f/0x5b0 [ 51.534440][ C1] mark_lock+0x28d/0x3e0 [ 51.534543][ C1] mark_usage+0xd9/0x2a0 [ 51.534646][ C1] __lock_acquire+0x797/0x1570 [ 51.534863][ C1] ? trace_rcu_dyntick+0x112/0x180 [ 51.535002][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 51.535244][ C1] lock_acquire.part.0+0xeb/0x330 [ 51.535410][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.535711][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 51.535845][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 51.535978][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.536265][ C1] ? lock_acquire+0x32/0xc0 [ 51.536422][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.536663][ C1] _raw_spin_lock+0x30/0x40 [ 51.536804][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.537139][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 51.537356][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 51.537604][ C1] call_timer_fn+0x13b/0x230 [ 51.537760][ C1] ? call_timer_fn+0xe8/0x230 [ 51.537967][ C1] ? call_timer_fn+0xe8/0x230 [ 51.538140][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 51.538276][ C1] ? mark_lock+0x38/0x3e0 [ 51.538384][ C1] __run_timers+0x545/0x810 [ 51.538594][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 51.538827][ C1] ? __pfx___run_timers+0x10/0x10 [ 51.538959][ C1] ? do_raw_spin_lock+0x131/0x270 [ 51.539091][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 51.539303][ C1] ? lock_acquire+0x32/0xc0 [ 51.539445][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 51.539579][ C1] run_timer_softirq+0xe8/0x1b0 [ 51.539711][ C1] __do_softirq+0x1f8/0x5df [ 51.539919][ C1] irq_exit_rcu+0x97/0xc0 [ 51.540019][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 51.540151][ C1] [ 51.540228][ C1] [ 51.540312][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 51.540481][ C1] RIP: 0010:default_idle+0xf/0x20 [ 51.540618][ 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 [ 51.541224][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000242 [ 51.541397][ C1] RAX: 0000000000113061 RBX: 1ffff92000029fc1 RCX: ffffffff9b50e9d5 [ 51.541603][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff98eaa4a4 [ 51.541884][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 51.542080][ C1] R10: ffff8880360b84e3 R11: 1ffff110003a91cc R12: 0000000000000000 [ 51.542282][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 51.542636][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 51.542769][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 51.542902][ C1] default_idle_call+0x6d/0xb0 [ 51.543061][ C1] cpuidle_idle_call+0x1f4/0x280 [ 51.543268][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 51.543404][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 51.543541][ C1] do_idle+0xf9/0x160 [ 51.543641][ C1] cpu_startup_entry+0x54/0x60 [ 51.543775][ C1] start_secondary+0x21c/0x2b0 [ 51.543983][ C1] ? __pfx_start_secondary+0x10/0x10 [ 51.544116][ C1] common_startup_64+0x12c/0x138 [ 51.544259][ C1] [ 117.743088][ T614] br11: port 2(veth2.11) entered disabled state [ 117.743638][ T614] br11: port 1(veth1.11) entered disabled state [ 117.849529][ T615] br10: port 2(veth2.10) entered disabled state [ 117.850067][ T615] br10: port 1(veth1.10) entered disabled state [ 118.050074][ T617] veth2.11: left allmulticast mode [ 118.050289][ T617] veth2.11: left promiscuous mode [ 118.050585][ T617] br11: port 2(veth2.11) entered disabled state [ 118.267666][ T619] veth2: left allmulticast mode [ 118.267865][ T619] veth2: left promiscuous mode [ 118.380799][ T622] veth2.10: left allmulticast mode [ 118.380983][ T622] veth2.10: left promiscuous mode [ 118.381242][ T622] br10: port 2(veth2.10) entered disabled state [ 118.898759][ T627] veth1.11: left allmulticast mode [ 118.898989][ T627] veth1.11: left promiscuous mode [ 118.899267][ T627] br11: port 1(veth1.11) entered disabled state [ 119.126431][ T629] veth1: left allmulticast mode [ 119.126626][ T629] veth1: left promiscuous mode [ 119.231872][ T630] veth1.10: left allmulticast mode [ 119.232043][ T630] veth1.10: left promiscuous mode [ 119.232301][ T630] br10: port 1(veth1.10) entered disabled state