[ 28.817295][ T290] br1: port 1(veth1) entered blocking state [ 28.817761][ T290] br1: port 1(veth1) entered disabled state [ 28.818126][ T290] veth1: entered allmulticast mode [ 28.821276][ T290] veth1: entered promiscuous mode [ 28.943197][ T49] br1: port 1(veth1) entered blocking state [ 28.943679][ T49] br1: port 1(veth1) entered forwarding state [ 29.063431][ T293] br1: port 2(veth2) entered blocking state [ 29.063733][ T293] br1: port 2(veth2) entered disabled state [ 29.064029][ T293] veth2: entered allmulticast mode [ 29.066164][ T293] veth2: entered promiscuous mode [ 29.184824][ T51] br1: port 2(veth2) entered blocking state [ 29.185095][ T51] br1: port 2(veth2) entered forwarding state [ 38.617276][ T326] GACT probability NOT on [ 44.336385][ C1] [ 44.336495][ C1] ======================================================== [ 44.336704][ C1] WARNING: possible irq lock inversion dependency detected [ 44.336904][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 44.337039][ C1] -------------------------------------------------------- [ 44.337235][ C1] swapper/1/0 just changed the state of lock: [ 44.337408][ C1] ffff88800676ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.337761][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.337974][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 44.337979][ C1] [ 44.337979][ C1] [ 44.337979][ C1] and interrupts could create inverse lock ordering between them. [ 44.337979][ C1] [ 44.338485][ C1] [ 44.338485][ C1] other info that might help us debug this: [ 44.338682][ C1] Chain exists of: [ 44.338682][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.338682][ C1] [ 44.338989][ C1] Possible interrupt unsafe locking scenario: [ 44.338989][ C1] [ 44.339195][ C1] CPU0 CPU1 [ 44.339329][ C1] ---- ---- [ 44.339460][ C1] lock(&p->alloc_lock); [ 44.339574][ C1] local_irq_disable(); [ 44.339739][ C1] lock(&br->lock); [ 44.339905][ C1] lock(lweventlist_lock); [ 44.340072][ C1] [ 44.340177][ C1] lock(&br->lock); [ 44.340279][ C1] [ 44.340279][ C1] *** DEADLOCK *** [ 44.340279][ C1] [ 44.340477][ C1] 1 lock held by swapper/1/0: [ 44.340619][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.340900][ C1] [ 44.340900][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 44.341128][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.341267][ C1] HARDIRQ-ON-W at: [ 44.341371][ C1] __lock_acquire+0x797/0x1570 [ 44.341548][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.341720][ C1] _raw_spin_lock+0x30/0x40 [ 44.341891][ C1] set_mems_allowed+0x1d/0x210 [ 44.342063][ C1] kernel_init_freeable+0x72/0x310 [ 44.342245][ C1] kernel_init+0x20/0x200 [ 44.342415][ C1] ret_from_fork+0x31/0x70 [ 44.342583][ C1] ret_from_fork_asm+0x1a/0x30 [ 44.342757][ C1] SOFTIRQ-ON-W at: [ 44.342858][ C1] __lock_acquire+0x797/0x1570 [ 44.343026][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.343194][ C1] _raw_spin_lock+0x30/0x40 [ 44.343361][ C1] set_mems_allowed+0x1d/0x210 [ 44.343545][ C1] kernel_init_freeable+0x72/0x310 [ 44.343719][ C1] kernel_init+0x20/0x200 [ 44.343889][ C1] ret_from_fork+0x31/0x70 [ 44.344057][ C1] ret_from_fork_asm+0x1a/0x30 [ 44.344225][ C1] INITIAL USE at: [ 44.344324][ C1] __lock_acquire+0x797/0x1570 [ 44.344494][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.344672][ C1] _raw_spin_lock+0x30/0x40 [ 44.344841][ C1] set_mems_allowed+0x1d/0x210 [ 44.345009][ C1] kernel_init_freeable+0x72/0x310 [ 44.345174][ C1] kernel_init+0x20/0x200 [ 44.345344][ C1] ret_from_fork+0x31/0x70 [ 44.345508][ C1] ret_from_fork_asm+0x1a/0x30 [ 44.345683][ C1] } [ 44.345752][ C1] ... key at: [] __key.387+0x0/0x40 [ 44.345959][ C1] ... acquired at: [ 44.346060][ C1] __lock_acquire+0xaf0/0x1570 [ 44.346197][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.346336][ C1] _raw_spin_lock+0x30/0x40 [ 44.346469][ C1] __get_task_comm+0x27/0x70 [ 44.346604][ C1] ref_tracker_alloc+0x2ee/0x490 [ 44.346741][ C1] linkwatch_fire_event+0x196/0x200 [ 44.346882][ C1] veth_newlink+0x367/0x830 [veth] [ 44.347024][ C1] rtnl_newlink_create+0x341/0x850 [ 44.347156][ C1] __rtnl_newlink+0xac9/0xd80 [ 44.347293][ C1] rtnl_newlink+0x63/0xa0 [ 44.347437][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.347579][ C1] netlink_rcv_skb+0x130/0x360 [ 44.347725][ C1] netlink_unicast+0x449/0x710 [ 44.347859][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.347997][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 44.348131][ C1] ___sys_sendmsg+0xee/0x170 [ 44.348268][ C1] __sys_sendmsg+0xcd/0x170 [ 44.348403][ C1] do_syscall_64+0xc6/0x1e0 [ 44.348539][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.348707][ C1] [ 44.348777][ C1] -> (lweventlist_lock){....}-{2:2} { [ 44.348914][ C1] INITIAL USE at: [ 44.349014][ C1] __lock_acquire+0x797/0x1570 [ 44.349195][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.349364][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.349530][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 44.349698][ C1] rtnl_getlink+0x4c9/0x970 [ 44.349864][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.350036][ C1] netlink_rcv_skb+0x130/0x360 [ 44.350204][ C1] netlink_unicast+0x449/0x710 [ 44.350372][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.350540][ C1] __sys_sendto+0x37d/0x410 [ 44.350706][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 44.350876][ C1] do_syscall_64+0xc6/0x1e0 [ 44.351053][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.351250][ C1] } [ 44.351318][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.351519][ C1] ... acquired at: [ 44.351619][ C1] __lock_acquire+0xaf0/0x1570 [ 44.351753][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.351887][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.352021][ C1] linkwatch_fire_event+0x74/0x200 [ 44.352169][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.352384][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.352584][ C1] dev_set_mac_address+0x28a/0x410 [ 44.352720][ C1] dev_set_mac_address_user+0x31/0x50 [ 44.352852][ C1] do_setlink+0x17b4/0x21e0 [ 44.352983][ C1] rtnl_setlink+0x1f7/0x310 [ 44.353119][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.353256][ C1] netlink_rcv_skb+0x130/0x360 [ 44.353389][ C1] netlink_unicast+0x449/0x710 [ 44.353523][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.353657][ C1] __sys_sendto+0x37d/0x410 [ 44.353792][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 44.353925][ C1] do_syscall_64+0xc6/0x1e0 [ 44.354056][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.354220][ C1] [ 44.354289][ C1] -> (&br->lock){+.-.}-{2:2} { [ 44.354436][ C1] HARDIRQ-ON-W at: [ 44.354537][ C1] __lock_acquire+0x797/0x1570 [ 44.354705][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.354874][ C1] _raw_spin_lock_bh+0x38/0x50 [ 44.355044][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 44.355282][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.355520][ C1] br_changelink+0x36c/0x1360 [bridge] [ 44.355812][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 44.356014][ C1] rtnl_newlink_create+0x341/0x850 [ 44.356178][ C1] __rtnl_newlink+0xac9/0xd80 [ 44.356443][ C1] rtnl_newlink+0x63/0xa0 [ 44.356607][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.356771][ C1] netlink_rcv_skb+0x130/0x360 [ 44.356945][ C1] netlink_unicast+0x449/0x710 [ 44.357111][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.357284][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 44.357453][ C1] ___sys_sendmsg+0xee/0x170 [ 44.357620][ C1] __sys_sendmsg+0xcd/0x170 [ 44.357790][ C1] do_syscall_64+0xc6/0x1e0 [ 44.357957][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.358241][ C1] IN-SOFTIRQ-W at: [ 44.358344][ C1] __lock_acquire+0x797/0x1570 [ 44.358516][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.358684][ C1] _raw_spin_lock+0x30/0x40 [ 44.358934][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.359172][ C1] call_timer_fn+0x13b/0x230 [ 44.359345][ C1] __run_timers+0x545/0x810 [ 44.359586][ C1] run_timer_softirq+0xe8/0x1b0 [ 44.359750][ C1] __do_softirq+0x1f8/0x5df [ 44.359921][ C1] irq_exit_rcu+0x97/0xc0 [ 44.360166][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.360372][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.360574][ C1] default_idle+0xf/0x20 [ 44.360823][ C1] default_idle_call+0x6d/0xb0 [ 44.360994][ C1] cpuidle_idle_call+0x1f4/0x280 [ 44.361161][ C1] do_idle+0xf9/0x160 [ 44.361296][ C1] cpu_startup_entry+0x54/0x60 [ 44.361540][ C1] start_secondary+0x21c/0x2b0 [ 44.361712][ C1] common_startup_64+0x12c/0x138 [ 44.361888][ C1] INITIAL USE at: [ 44.361988][ C1] __lock_acquire+0x797/0x1570 [ 44.362250][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.362418][ C1] _raw_spin_lock_bh+0x38/0x50 [ 44.362584][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 44.362903][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.363145][ C1] br_changelink+0x36c/0x1360 [bridge] [ 44.363352][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 44.363637][ C1] rtnl_newlink_create+0x341/0x850 [ 44.363804][ C1] __rtnl_newlink+0xac9/0xd80 [ 44.363971][ C1] rtnl_newlink+0x63/0xa0 [ 44.364140][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.364386][ C1] netlink_rcv_skb+0x130/0x360 [ 44.364553][ C1] netlink_unicast+0x449/0x710 [ 44.364718][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.364962][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 44.365126][ C1] ___sys_sendmsg+0xee/0x170 [ 44.365295][ C1] __sys_sendmsg+0xcd/0x170 [ 44.365536][ C1] do_syscall_64+0xc6/0x1e0 [ 44.365708][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.365909][ C1] } [ 44.365978][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.366325][ C1] ... acquired at: [ 44.366425][ C1] mark_lock+0x28d/0x3e0 [ 44.366559][ C1] mark_usage+0xd9/0x2a0 [ 44.366691][ C1] __lock_acquire+0x797/0x1570 [ 44.366900][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.367042][ C1] _raw_spin_lock+0x30/0x40 [ 44.367175][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.367382][ C1] call_timer_fn+0x13b/0x230 [ 44.367669][ C1] __run_timers+0x545/0x810 [ 44.367803][ C1] run_timer_softirq+0xe8/0x1b0 [ 44.367939][ C1] __do_softirq+0x1f8/0x5df [ 44.368083][ C1] irq_exit_rcu+0x97/0xc0 [ 44.368299][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.368478][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.368644][ C1] default_idle+0xf/0x20 [ 44.368776][ C1] default_idle_call+0x6d/0xb0 [ 44.368908][ C1] cpuidle_idle_call+0x1f4/0x280 [ 44.369040][ C1] do_idle+0xf9/0x160 [ 44.369139][ C1] cpu_startup_entry+0x54/0x60 [ 44.369280][ C1] start_secondary+0x21c/0x2b0 [ 44.369413][ C1] common_startup_64+0x12c/0x138 [ 44.369547][ C1] [ 44.369618][ C1] [ 44.369618][ C1] stack backtrace: [ 44.369784][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 44.369986][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.370279][ C1] Call Trace: [ 44.370380][ C1] [ 44.370453][ C1] dump_stack_lvl+0x82/0xd0 [ 44.370667][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.370838][ C1] ? common_startup_64+0x12c/0x138 [ 44.370973][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.371138][ C1] ? __pfx_usage_skip+0x10/0x10 [ 44.371362][ C1] ? __pfx_usage_match+0x10/0x10 [ 44.371495][ C1] ? arch_stack_walk+0x8c/0xf0 [ 44.371627][ C1] mark_lock_irq+0x4cd/0xa10 [ 44.371758][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.371892][ C1] ? stack_trace_save+0x94/0xd0 [ 44.372033][ C1] ? add_chain_cache+0x248/0x8b0 [ 44.372176][ C1] ? save_trace+0x8f/0x5b0 [ 44.372311][ C1] mark_lock+0x28d/0x3e0 [ 44.372411][ C1] mark_usage+0xd9/0x2a0 [ 44.372512][ C1] __lock_acquire+0x797/0x1570 [ 44.372646][ C1] ? __lock_acquire+0xaf0/0x1570 [ 44.372779][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.373013][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.373150][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.373350][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.373481][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 44.373613][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.373887][ C1] ? lock_acquire+0x32/0xc0 [ 44.374017][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.374217][ C1] _raw_spin_lock+0x30/0x40 [ 44.374353][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.374631][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.374830][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.375058][ C1] call_timer_fn+0x13b/0x230 [ 44.375269][ C1] ? call_timer_fn+0xe8/0x230 [ 44.375400][ C1] ? call_timer_fn+0xe8/0x230 [ 44.375532][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 44.375666][ C1] ? mark_lock+0x38/0x3e0 [ 44.375846][ C1] __run_timers+0x545/0x810 [ 44.375979][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.376210][ C1] ? __pfx___run_timers+0x10/0x10 [ 44.376345][ C1] ? do_raw_spin_lock+0x131/0x270 [ 44.376552][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.376682][ C1] ? lock_acquire+0x32/0xc0 [ 44.376815][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 44.376954][ C1] run_timer_softirq+0xe8/0x1b0 [ 44.377166][ C1] __do_softirq+0x1f8/0x5df [ 44.377303][ C1] irq_exit_rcu+0x97/0xc0 [ 44.377405][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.377536][ C1] [ 44.377609][ C1] [ 44.377676][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.377990][ C1] RIP: 0010:default_idle+0xf/0x20 [ 44.378139][ 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 [ 44.378697][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 44.378870][ C1] RAX: 000000000008e4a9 RBX: 1ffff92000029fc1 RCX: ffffffffa2f0e9d5 [ 44.379075][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa08aa4a4 [ 44.379356][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005f1709c [ 44.379560][ C1] R10: ffff88802f8b84e3 R11: ffff88802f8bdc80 R12: 0000000000000000 [ 44.379758][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 44.380038][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.380172][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 44.380309][ C1] default_idle_call+0x6d/0xb0 [ 44.380523][ C1] cpuidle_idle_call+0x1f4/0x280 [ 44.380659][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.380793][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.380930][ C1] do_idle+0xf9/0x160 [ 44.381030][ C1] cpu_startup_entry+0x54/0x60 [ 44.381240][ C1] start_secondary+0x21c/0x2b0 [ 44.381373][ C1] ? __pfx_start_secondary+0x10/0x10 [ 44.381506][ C1] common_startup_64+0x12c/0x138 [ 44.381646][ C1] [ 48.486611][ T447] br1: port 2(veth2) entered disabled state [ 48.579048][ T448] veth2: left allmulticast mode [ 48.579309][ T448] veth2: left promiscuous mode [ 48.579570][ T448] br1: port 2(veth2) entered disabled state [ 48.693921][ T449] br1: port 1(veth1) entered disabled state [ 48.781537][ T450] veth1: left allmulticast mode [ 48.781713][ T450] veth1: left promiscuous mode [ 48.781956][ T450] br1: port 1(veth1) entered disabled state