[ 28.919319][ T283] 8021q: 802.1Q VLAN Support v1.8 [ 32.949739][ T325] GACT probability NOT on [ 34.451144][ T340] br10: port 1(veth1.10) entered blocking state [ 34.452961][ T340] br10: port 1(veth1.10) entered disabled state [ 34.453732][ T340] veth1.10: entered allmulticast mode [ 34.454000][ T340] veth1: entered allmulticast mode [ 34.456145][ T340] veth1.10: entered promiscuous mode [ 34.457014][ T340] veth1: entered promiscuous mode [ 34.971707][ T345] br11: port 1(veth1.11) entered blocking state [ 34.971996][ T345] br11: port 1(veth1.11) entered disabled state [ 34.972288][ T345] veth1.11: entered allmulticast mode [ 34.974143][ T345] veth1.11: entered promiscuous mode [ 35.945991][ T355] br10: port 2(veth2.10) entered blocking state [ 35.946279][ T355] br10: port 2(veth2.10) entered disabled state [ 35.946522][ T355] veth2.10: entered allmulticast mode [ 35.946679][ T355] veth2: entered allmulticast mode [ 35.948943][ T355] veth2.10: entered promiscuous mode [ 35.949116][ T355] veth2: entered promiscuous mode [ 36.432814][ T360] br11: port 2(veth2.11) entered blocking state [ 36.433126][ T360] br11: port 2(veth2.11) entered disabled state [ 36.434040][ T360] veth2.11: entered allmulticast mode [ 36.435858][ T360] veth2.11: entered promiscuous mode [ 36.908884][ T364] br10: port 2(veth2.10) entered blocking state [ 36.909291][ T364] br10: port 2(veth2.10) entered forwarding state [ 36.910010][ T364] br10: port 1(veth1.10) entered blocking state [ 36.910295][ T364] br10: port 1(veth1.10) entered forwarding state [ 37.043834][ T365] br11: port 2(veth2.11) entered blocking state [ 37.044105][ T365] br11: port 2(veth2.11) entered forwarding state [ 37.044558][ T365] br11: port 1(veth1.11) entered blocking state [ 37.044794][ T365] br11: port 1(veth1.11) entered forwarding state [ 52.028313][ C3] [ 52.028462][ C3] ======================================================== [ 52.028679][ C3] WARNING: possible irq lock inversion dependency detected [ 52.028879][ C3] 6.9.0-rc1-virtme #1 Not tainted [ 52.029015][ C3] -------------------------------------------------------- [ 52.029210][ C3] swapper/3/0 just changed the state of lock: [ 52.029379][ C3] ffff8880080aac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.029739][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 52.029939][ C3] (&p->alloc_lock){+.+.}-{2:2} [ 52.029943][ C3] [ 52.029943][ C3] [ 52.029943][ C3] and interrupts could create inverse lock ordering between them. [ 52.029943][ C3] [ 52.030431][ C3] [ 52.030431][ C3] other info that might help us debug this: [ 52.030637][ C3] Chain exists of: [ 52.030637][ C3] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 52.030637][ C3] [ 52.030940][ C3] Possible interrupt unsafe locking scenario: [ 52.030940][ C3] [ 52.031140][ C3] CPU0 CPU1 [ 52.031278][ C3] ---- ---- [ 52.031411][ C3] lock(&p->alloc_lock); [ 52.031514][ C3] local_irq_disable(); [ 52.031683][ C3] lock(&br->lock); [ 52.031848][ C3] lock(lweventlist_lock); [ 52.032016][ C3] [ 52.032117][ C3] lock(&br->lock); [ 52.032221][ C3] [ 52.032221][ C3] *** DEADLOCK *** [ 52.032221][ C3] [ 52.032418][ C3] 1 lock held by swapper/3/0: [ 52.032553][ C3] #0: ffffc90000288d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 52.032834][ C3] [ 52.032834][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 52.033073][ C3] -> (&p->alloc_lock){+.+.}-{2:2} { [ 52.033218][ C3] HARDIRQ-ON-W at: [ 52.033323][ C3] __lock_acquire+0x797/0x1570 [ 52.033506][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.033684][ C3] _raw_spin_lock+0x30/0x40 [ 52.033862][ C3] set_mems_allowed+0x1d/0x210 [ 52.034031][ C3] kernel_init_freeable+0x72/0x310 [ 52.034206][ C3] kernel_init+0x20/0x200 [ 52.034379][ C3] ret_from_fork+0x31/0x70 [ 52.034548][ C3] ret_from_fork_asm+0x1a/0x30 [ 52.034802][ C3] SOFTIRQ-ON-W at: [ 52.034968][ C3] __lock_acquire+0x797/0x1570 [ 52.035205][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.035378][ C3] _raw_spin_lock+0x30/0x40 [ 52.035547][ C3] set_mems_allowed+0x1d/0x210 [ 52.035723][ C3] kernel_init_freeable+0x72/0x310 [ 52.035896][ C3] kernel_init+0x20/0x200 [ 52.036065][ C3] ret_from_fork+0x31/0x70 [ 52.036238][ C3] ret_from_fork_asm+0x1a/0x30 [ 52.036412][ C3] INITIAL USE at: [ 52.036514][ C3] __lock_acquire+0x797/0x1570 [ 52.036696][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.036866][ C3] _raw_spin_lock+0x30/0x40 [ 52.037039][ C3] set_mems_allowed+0x1d/0x210 [ 52.037206][ C3] kernel_init_freeable+0x72/0x310 [ 52.037372][ C3] kernel_init+0x20/0x200 [ 52.037545][ C3] ret_from_fork+0x31/0x70 [ 52.037722][ C3] ret_from_fork_asm+0x1a/0x30 [ 52.037889][ C3] } [ 52.037959][ C3] ... key at: [] __key.387+0x0/0x40 [ 52.038177][ C3] ... acquired at: [ 52.038277][ C3] __lock_acquire+0xaf0/0x1570 [ 52.038415][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.038560][ C3] _raw_spin_lock+0x30/0x40 [ 52.038704][ C3] __get_task_comm+0x27/0x70 [ 52.038838][ C3] ref_tracker_alloc+0x2ee/0x490 [ 52.038973][ C3] linkwatch_fire_event+0x196/0x200 [ 52.039108][ C3] veth_newlink+0x367/0x830 [veth] [ 52.039257][ C3] rtnl_newlink_create+0x341/0x850 [ 52.039398][ C3] __rtnl_newlink+0xac9/0xd80 [ 52.039532][ C3] rtnl_newlink+0x63/0xa0 [ 52.039675][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.039822][ C3] netlink_rcv_skb+0x130/0x360 [ 52.039962][ C3] netlink_unicast+0x449/0x710 [ 52.040097][ C3] netlink_sendmsg+0x723/0xbe0 [ 52.040229][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 52.040364][ C3] ___sys_sendmsg+0xee/0x170 [ 52.040500][ C3] __sys_sendmsg+0xcd/0x170 [ 52.040638][ C3] do_syscall_64+0xc6/0x1e0 [ 52.040772][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.040940][ C3] [ 52.041013][ C3] -> (lweventlist_lock){....}-{2:2} { [ 52.041193][ C3] INITIAL USE at: [ 52.041294][ C3] __lock_acquire+0x797/0x1570 [ 52.041462][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.041637][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 52.041806][ C3] linkwatch_sync_dev+0x29/0x1f0 [ 52.041975][ C3] rtnl_getlink+0x4c9/0x970 [ 52.042144][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.042315][ C3] netlink_rcv_skb+0x130/0x360 [ 52.042482][ C3] netlink_unicast+0x449/0x710 [ 52.042656][ C3] netlink_sendmsg+0x723/0xbe0 [ 52.042828][ C3] __sys_sendto+0x37d/0x410 [ 52.042996][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 52.043168][ C3] do_syscall_64+0xc6/0x1e0 [ 52.043335][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.043540][ C3] } [ 52.043620][ C3] ... key at: [] lweventlist_lock+0x18/0x60 [ 52.043932][ C3] ... acquired at: [ 52.044052][ C3] __lock_acquire+0xaf0/0x1570 [ 52.044190][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.044330][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 52.044467][ C3] linkwatch_fire_event+0x74/0x200 [ 52.044609][ C3] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 52.044823][ C3] br_set_mac_address+0x1f3/0x260 [bridge] [ 52.045022][ C3] dev_set_mac_address+0x28a/0x410 [ 52.045157][ C3] dev_set_mac_address_user+0x31/0x50 [ 52.045290][ C3] do_setlink+0x17b4/0x21e0 [ 52.045432][ C3] rtnl_setlink+0x1f7/0x310 [ 52.045569][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.045707][ C3] netlink_rcv_skb+0x130/0x360 [ 52.045840][ C3] netlink_unicast+0x449/0x710 [ 52.045975][ C3] netlink_sendmsg+0x723/0xbe0 [ 52.046107][ C3] __sys_sendto+0x37d/0x410 [ 52.046239][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 52.046375][ C3] do_syscall_64+0xc6/0x1e0 [ 52.046512][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.046691][ C3] [ 52.046758][ C3] -> (&br->lock){+.-.}-{2:2} { [ 52.046895][ C3] HARDIRQ-ON-W at: [ 52.046997][ C3] __lock_acquire+0x797/0x1570 [ 52.047176][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.047343][ C3] _raw_spin_lock_bh+0x38/0x50 [ 52.047512][ C3] br_set_mac_address+0xd2/0x260 [bridge] [ 52.047764][ C3] dev_set_mac_address+0x28a/0x410 [ 52.047933][ C3] dev_set_mac_address_user+0x31/0x50 [ 52.048115][ C3] do_setlink+0x17b4/0x21e0 [ 52.048285][ C3] rtnl_setlink+0x1f7/0x310 [ 52.048456][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.048634][ C3] netlink_rcv_skb+0x130/0x360 [ 52.048807][ C3] netlink_unicast+0x449/0x710 [ 52.048981][ C3] netlink_sendmsg+0x723/0xbe0 [ 52.049150][ C3] __sys_sendto+0x37d/0x410 [ 52.049319][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 52.049491][ C3] do_syscall_64+0xc6/0x1e0 [ 52.049669][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.049873][ C3] IN-SOFTIRQ-W at: [ 52.049977][ C3] __lock_acquire+0x797/0x1570 [ 52.050150][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.050317][ C3] _raw_spin_lock+0x30/0x40 [ 52.050486][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.050738][ C3] call_timer_fn+0x13b/0x230 [ 52.050910][ C3] __run_timers+0x545/0x810 [ 52.051081][ C3] run_timer_softirq+0xe8/0x1b0 [ 52.051252][ C3] __do_softirq+0x1f8/0x5df [ 52.051420][ C3] irq_exit_rcu+0x97/0xc0 [ 52.051594][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.051800][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.052003][ C3] default_idle+0xf/0x20 [ 52.052171][ C3] default_idle_call+0x6d/0xb0 [ 52.052341][ C3] cpuidle_idle_call+0x1f4/0x280 [ 52.052514][ C3] do_idle+0xf9/0x160 [ 52.052667][ C3] cpu_startup_entry+0x54/0x60 [ 52.052835][ C3] start_secondary+0x21c/0x2b0 [ 52.053003][ C3] common_startup_64+0x12c/0x138 [ 52.053174][ C3] INITIAL USE at: [ 52.053279][ C3] __lock_acquire+0x797/0x1570 [ 52.053450][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.053622][ C3] _raw_spin_lock_bh+0x38/0x50 [ 52.053790][ C3] br_set_mac_address+0xd2/0x260 [bridge] [ 52.054024][ C3] dev_set_mac_address+0x28a/0x410 [ 52.054195][ C3] dev_set_mac_address_user+0x31/0x50 [ 52.054364][ C3] do_setlink+0x17b4/0x21e0 [ 52.054534][ C3] rtnl_setlink+0x1f7/0x310 [ 52.054699][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.054868][ C3] netlink_rcv_skb+0x130/0x360 [ 52.055041][ C3] netlink_unicast+0x449/0x710 [ 52.055207][ C3] netlink_sendmsg+0x723/0xbe0 [ 52.055380][ C3] __sys_sendto+0x37d/0x410 [ 52.055551][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 52.055717][ C3] do_syscall_64+0xc6/0x1e0 [ 52.055886][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.056167][ C3] } [ 52.056236][ C3] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 52.056501][ C3] ... acquired at: [ 52.056600][ C3] mark_lock+0x28d/0x3e0 [ 52.056810][ C3] mark_usage+0xd9/0x2a0 [ 52.056949][ C3] __lock_acquire+0x797/0x1570 [ 52.057083][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.057216][ C3] _raw_spin_lock+0x30/0x40 [ 52.057426][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.057628][ C3] call_timer_fn+0x13b/0x230 [ 52.057762][ C3] __run_timers+0x545/0x810 [ 52.057899][ C3] run_timer_softirq+0xe8/0x1b0 [ 52.058120][ C3] __do_softirq+0x1f8/0x5df [ 52.058263][ C3] irq_exit_rcu+0x97/0xc0 [ 52.058415][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.058578][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.058828][ C3] default_idle+0xf/0x20 [ 52.058973][ C3] default_idle_call+0x6d/0xb0 [ 52.059111][ C3] cpuidle_idle_call+0x1f4/0x280 [ 52.059253][ C3] do_idle+0xf9/0x160 [ 52.059437][ C3] cpu_startup_entry+0x54/0x60 [ 52.059585][ C3] start_secondary+0x21c/0x2b0 [ 52.059732][ C3] common_startup_64+0x12c/0x138 [ 52.059878][ C3] [ 52.059951][ C3] [ 52.059951][ C3] stack backtrace: [ 52.060206][ C3] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 6.9.0-rc1-virtme #1 [ 52.060425][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 52.060820][ C3] Call Trace: [ 52.060937][ C3] [ 52.061014][ C3] dump_stack_lvl+0x82/0xd0 [ 52.061164][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 52.061343][ C3] ? common_startup_64+0x12c/0x138 [ 52.061572][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 52.061753][ C3] ? __pfx_usage_skip+0x10/0x10 [ 52.061901][ C3] ? __pfx_usage_match+0x10/0x10 [ 52.062045][ C3] ? arch_stack_walk+0x8c/0xf0 [ 52.062276][ C3] mark_lock_irq+0x4cd/0xa10 [ 52.062421][ C3] ? __pfx_mark_lock_irq+0x10/0x10 [ 52.062565][ C3] ? stack_trace_save+0x94/0xd0 [ 52.062713][ C3] ? save_trace+0x8f/0x5b0 [ 52.062934][ C3] mark_lock+0x28d/0x3e0 [ 52.063048][ C3] mark_usage+0xd9/0x2a0 [ 52.063158][ C3] __lock_acquire+0x797/0x1570 [ 52.063305][ C3] ? trace_rcu_dyntick+0x112/0x180 [ 52.063451][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 52.063785][ C3] lock_acquire.part.0+0xeb/0x330 [ 52.063930][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.064150][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 52.064295][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 52.064517][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.064733][ C3] ? lock_acquire+0x32/0xc0 [ 52.064877][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.065178][ C3] _raw_spin_lock+0x30/0x40 [ 52.065321][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.065536][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.065752][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 52.066079][ C3] call_timer_fn+0x13b/0x230 [ 52.066224][ C3] ? call_timer_fn+0xe8/0x230 [ 52.066373][ C3] ? call_timer_fn+0xe8/0x230 [ 52.066519][ C3] ? __pfx_call_timer_fn+0x10/0x10 [ 52.066737][ C3] ? mark_lock+0x38/0x3e0 [ 52.066850][ C3] __run_timers+0x545/0x810 [ 52.066994][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 52.067244][ C3] ? __pfx___run_timers+0x10/0x10 [ 52.067542][ C3] ? do_raw_spin_lock+0x131/0x270 [ 52.067685][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 52.067831][ C3] ? lock_acquire+0x32/0xc0 [ 52.067975][ C3] ? run_timer_softirq+0xe0/0x1b0 [ 52.068203][ C3] run_timer_softirq+0xe8/0x1b0 [ 52.068348][ C3] __do_softirq+0x1f8/0x5df [ 52.068496][ C3] irq_exit_rcu+0x97/0xc0 [ 52.068604][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.068748][ C3] [ 52.068898][ C3] [ 52.068971][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.069149][ C3] RIP: 0010:default_idle+0xf/0x20 [ 52.069304][ C3] 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 [ 52.069900][ C3] RSP: 0018:ffffc9000016fdf8 EFLAGS: 00000246 [ 52.070083][ C3] RAX: 00000000000dbd2d RBX: 1ffff9200002dfc1 RCX: ffffffffb4d0f9e5 [ 52.070382][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb26aa4a4 [ 52.070604][ C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c3709c [ 52.070831][ C3] R10: ffff8880361b84e3 R11: ffff8880361bdc80 R12: 0000000000000000 [ 52.071128][ C3] R13: ffff888001b88040 R14: dffffc0000000000 R15: 0000000000000000 [ 52.071346][ C3] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 52.071494][ C3] ? cpuidle_idle_call+0x1f4/0x280 [ 52.071722][ C3] default_idle_call+0x6d/0xb0 [ 52.071867][ C3] cpuidle_idle_call+0x1f4/0x280 [ 52.072013][ C3] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 52.072158][ C3] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 52.072378][ C3] do_idle+0xf9/0x160 [ 52.072489][ C3] cpu_startup_entry+0x54/0x60 [ 52.072637][ C3] start_secondary+0x21c/0x2b0 [ 52.072783][ C3] ? __pfx_start_secondary+0x10/0x10 [ 52.072934][ C3] common_startup_64+0x12c/0x138 [ 52.073159][ C3] [ 118.391396][ T615] br11: port 2(veth2.11) entered disabled state [ 118.391795][ T615] br11: port 1(veth1.11) entered disabled state [ 118.508654][ T616] br10: port 2(veth2.10) entered disabled state [ 118.509112][ T616] br10: port 1(veth1.10) entered disabled state [ 118.749127][ T618] veth2.11: left allmulticast mode [ 118.749341][ T618] veth2.11: left promiscuous mode [ 118.749610][ T618] br11: port 2(veth2.11) entered disabled state [ 118.998156][ T620] veth2: left allmulticast mode [ 118.999084][ T620] veth2: left promiscuous mode [ 119.101741][ T623] veth2.10: left allmulticast mode [ 119.101930][ T623] veth2.10: left promiscuous mode [ 119.102203][ T623] br10: port 2(veth2.10) entered disabled state [ 119.639587][ T628] veth1.11: left allmulticast mode [ 119.639802][ T628] veth1.11: left promiscuous mode [ 119.640145][ T628] br11: port 1(veth1.11) entered disabled state [ 119.881246][ T630] veth1: left allmulticast mode [ 119.881444][ T630] veth1: left promiscuous mode [ 119.990793][ T631] veth1.10: left allmulticast mode [ 119.990981][ T631] veth1.10: left promiscuous mode [ 119.991263][ T631] br10: port 1(veth1.10) entered disabled state