[ 28.346321][ T285] br0: port 1(veth1) entered blocking state [ 28.346757][ T285] br0: port 1(veth1) entered disabled state [ 28.347098][ T285] veth1: entered allmulticast mode [ 28.349943][ T285] veth1: entered promiscuous mode [ 28.472474][ T287] br0: port 2(veth2) entered blocking state [ 28.473042][ T287] br0: port 2(veth2) entered disabled state [ 28.473286][ T287] veth2: entered allmulticast mode [ 28.475891][ T287] veth2: entered promiscuous mode [ 28.721517][ T51] br0: port 1(veth1) entered blocking state [ 28.721854][ T51] br0: port 1(veth1) entered forwarding state [ 28.877751][ T49] br0: port 2(veth2) entered blocking state [ 28.878133][ T49] br0: port 2(veth2) entered forwarding state [ 43.482573][ T337] GACT probability NOT on [ 43.826615][ C1] [ 43.826799][ C1] ======================================================== [ 43.827017][ C1] WARNING: possible irq lock inversion dependency detected [ 43.827221][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 43.827364][ C1] -------------------------------------------------------- [ 43.827568][ C1] swapper/1/0 just changed the state of lock: [ 43.827745][ C1] ffff888005fc2c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.828111][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.828324][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 43.828328][ C1] [ 43.828328][ C1] [ 43.828328][ C1] and interrupts could create inverse lock ordering between them. [ 43.828328][ C1] [ 43.828818][ C1] [ 43.828818][ C1] other info that might help us debug this: [ 43.829023][ C1] Chain exists of: [ 43.829023][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 43.829023][ C1] [ 43.829327][ C1] Possible interrupt unsafe locking scenario: [ 43.829327][ C1] [ 43.829528][ C1] CPU0 CPU1 [ 43.829667][ C1] ---- ---- [ 43.829800][ C1] lock(&p->alloc_lock); [ 43.829904][ C1] local_irq_disable(); [ 43.830073][ C1] lock(&br->lock); [ 43.830255][ C1] lock(lweventlist_lock); [ 43.830424][ C1] [ 43.830527][ C1] lock(&br->lock); [ 43.830632][ C1] [ 43.830632][ C1] *** DEADLOCK *** [ 43.830632][ C1] [ 43.830832][ C1] 1 lock held by swapper/1/0: [ 43.830968][ C1] #0: ffffc900001d8b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 43.831259][ C1] [ 43.831259][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 43.831523][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.831667][ C1] HARDIRQ-ON-W at: [ 43.831776][ C1] __lock_acquire+0x797/0x1570 [ 43.831957][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.832129][ C1] _raw_spin_lock+0x30/0x40 [ 43.832311][ C1] set_mems_allowed+0x1d/0x210 [ 43.832485][ C1] kernel_init_freeable+0x72/0x310 [ 43.832660][ C1] kernel_init+0x20/0x200 [ 43.832834][ C1] ret_from_fork+0x31/0x70 [ 43.833008][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.833181][ C1] SOFTIRQ-ON-W at: [ 43.833283][ C1] __lock_acquire+0x797/0x1570 [ 43.833465][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.833634][ C1] _raw_spin_lock+0x30/0x40 [ 43.833806][ C1] set_mems_allowed+0x1d/0x210 [ 43.833984][ C1] kernel_init_freeable+0x72/0x310 [ 43.834154][ C1] kernel_init+0x20/0x200 [ 43.834331][ C1] ret_from_fork+0x31/0x70 [ 43.834511][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.834681][ C1] INITIAL USE at: [ 43.834785][ C1] __lock_acquire+0x797/0x1570 [ 43.834959][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.835128][ C1] _raw_spin_lock+0x30/0x40 [ 43.835299][ C1] set_mems_allowed+0x1d/0x210 [ 43.835477][ C1] kernel_init_freeable+0x72/0x310 [ 43.835647][ C1] kernel_init+0x20/0x200 [ 43.835816][ C1] ret_from_fork+0x31/0x70 [ 43.835985][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.836157][ C1] } [ 43.836228][ C1] ... key at: [] __key.387+0x0/0x40 [ 43.836447][ C1] ... acquired at: [ 43.836551][ C1] __lock_acquire+0xaf0/0x1570 [ 43.836692][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.836830][ C1] _raw_spin_lock+0x30/0x40 [ 43.836967][ C1] __get_task_comm+0x27/0x70 [ 43.837103][ C1] ref_tracker_alloc+0x2ee/0x490 [ 43.837246][ C1] linkwatch_fire_event+0x196/0x200 [ 43.837384][ C1] veth_newlink+0x367/0x830 [veth] [ 43.837533][ C1] rtnl_newlink_create+0x341/0x850 [ 43.837669][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.837806][ C1] rtnl_newlink+0x63/0xa0 [ 43.837944][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.838081][ C1] netlink_rcv_skb+0x130/0x360 [ 43.838220][ C1] netlink_unicast+0x449/0x710 [ 43.838356][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.838496][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.838634][ C1] ___sys_sendmsg+0xee/0x170 [ 43.838778][ C1] __sys_sendmsg+0xcd/0x170 [ 43.838917][ C1] do_syscall_64+0xc6/0x1e0 [ 43.839056][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.839229][ C1] [ 43.839300][ C1] -> (lweventlist_lock){....}-{2:2} { [ 43.839442][ C1] INITIAL USE at: [ 43.839545][ C1] __lock_acquire+0x797/0x1570 [ 43.839717][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.839894][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.840066][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 43.840238][ C1] rtnl_getlink+0x4c9/0x970 [ 43.840407][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.840578][ C1] netlink_rcv_skb+0x130/0x360 [ 43.840748][ C1] netlink_unicast+0x449/0x710 [ 43.840924][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.841093][ C1] __sys_sendto+0x37d/0x410 [ 43.841266][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.841451][ C1] do_syscall_64+0xc6/0x1e0 [ 43.841623][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.841828][ C1] } [ 43.841902][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 43.842106][ C1] ... acquired at: [ 43.842207][ C1] __lock_acquire+0xaf0/0x1570 [ 43.842344][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.842480][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.842618][ C1] linkwatch_fire_event+0x74/0x200 [ 43.842754][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 43.842969][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 43.843171][ C1] dev_set_mac_address+0x28a/0x410 [ 43.843314][ C1] dev_set_mac_address_user+0x31/0x50 [ 43.843449][ C1] do_setlink+0x17b4/0x21e0 [ 43.843589][ C1] rtnl_setlink+0x1f7/0x310 [ 43.843725][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.843862][ C1] netlink_rcv_skb+0x130/0x360 [ 43.844001][ C1] netlink_unicast+0x449/0x710 [ 43.844142][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.844279][ C1] __sys_sendto+0x37d/0x410 [ 43.844417][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.844552][ C1] do_syscall_64+0xc6/0x1e0 [ 43.844689][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.844856][ C1] [ 43.844925][ C1] -> (&br->lock){+.-.}-{2:2} { [ 43.845066][ C1] HARDIRQ-ON-W at: [ 43.845168][ C1] __lock_acquire+0x797/0x1570 [ 43.845343][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.845513][ C1] _raw_spin_lock_bh+0x38/0x50 [ 43.845685][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 43.845921][ C1] dev_set_mac_address+0x28a/0x410 [ 43.846090][ C1] dev_set_mac_address_user+0x31/0x50 [ 43.846263][ C1] do_setlink+0x17b4/0x21e0 [ 43.846436][ C1] rtnl_setlink+0x1f7/0x310 [ 43.846607][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.846778][ C1] netlink_rcv_skb+0x130/0x360 [ 43.846948][ C1] netlink_unicast+0x449/0x710 [ 43.847118][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.847286][ C1] __sys_sendto+0x37d/0x410 [ 43.847458][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.847636][ C1] do_syscall_64+0xc6/0x1e0 [ 43.847807][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.848013][ C1] IN-SOFTIRQ-W at: [ 43.848116][ C1] __lock_acquire+0x797/0x1570 [ 43.848288][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.848458][ C1] _raw_spin_lock+0x30/0x40 [ 43.848630][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.848877][ C1] call_timer_fn+0x13b/0x230 [ 43.849050][ C1] __run_timers+0x545/0x810 [ 43.849222][ C1] timer_expire_remote+0x9b/0xe0 [ 43.849391][ C1] tmigr_handle_remote_cpu+0x270/0x430 [ 43.849562][ C1] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.849818][ C1] tmigr_handle_remote+0x21d/0x3a0 [ 43.849994][ C1] __do_softirq+0x1f8/0x5df [ 43.850165][ C1] irq_exit_rcu+0x97/0xc0 [ 43.850335][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.850778][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.850982][ C1] default_idle+0xf/0x20 [ 43.851154][ C1] default_idle_call+0x6d/0xb0 [ 43.851330][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.851513][ C1] do_idle+0xf9/0x160 [ 43.851651][ C1] cpu_startup_entry+0x54/0x60 [ 43.851903][ C1] start_secondary+0x21c/0x2b0 [ 43.852076][ C1] common_startup_64+0x12c/0x138 [ 43.852247][ C1] INITIAL USE at: [ 43.852349][ C1] __lock_acquire+0x797/0x1570 [ 43.852610][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.852782][ C1] _raw_spin_lock_bh+0x38/0x50 [ 43.852952][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 43.853273][ C1] dev_set_mac_address+0x28a/0x410 [ 43.853445][ C1] dev_set_mac_address_user+0x31/0x50 [ 43.853614][ C1] do_setlink+0x17b4/0x21e0 [ 43.853790][ C1] rtnl_setlink+0x1f7/0x310 [ 43.854041][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.854211][ C1] netlink_rcv_skb+0x130/0x360 [ 43.854379][ C1] netlink_unicast+0x449/0x710 [ 43.854630][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.854800][ C1] __sys_sendto+0x37d/0x410 [ 43.854977][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.855148][ C1] do_syscall_64+0xc6/0x1e0 [ 43.855399][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.855603][ C1] } [ 43.855671][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 43.856019][ C1] ... acquired at: [ 43.856120][ C1] mark_lock+0x28d/0x3e0 [ 43.856256][ C1] mark_usage+0xd9/0x2a0 [ 43.856396][ C1] __lock_acquire+0x797/0x1570 [ 43.856613][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.856748][ C1] _raw_spin_lock+0x30/0x40 [ 43.856885][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.857091][ C1] call_timer_fn+0x13b/0x230 [ 43.857309][ C1] __run_timers+0x545/0x810 [ 43.857444][ C1] timer_expire_remote+0x9b/0xe0 [ 43.857579][ C1] tmigr_handle_remote_cpu+0x270/0x430 [ 43.857719][ C1] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.857856][ C1] tmigr_handle_remote+0x21d/0x3a0 [ 43.858072][ C1] __do_softirq+0x1f8/0x5df [ 43.858207][ C1] irq_exit_rcu+0x97/0xc0 [ 43.858344][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.858513][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.858766][ C1] default_idle+0xf/0x20 [ 43.858907][ C1] default_idle_call+0x6d/0xb0 [ 43.859043][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.859180][ C1] do_idle+0xf9/0x160 [ 43.859364][ C1] cpu_startup_entry+0x54/0x60 [ 43.859501][ C1] start_secondary+0x21c/0x2b0 [ 43.859639][ C1] common_startup_64+0x12c/0x138 [ 43.859774][ C1] [ 43.859842][ C1] [ 43.859842][ C1] stack backtrace: [ 43.860091][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 43.860301][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.860682][ C1] Call Trace: [ 43.860786][ C1] [ 43.860858][ C1] dump_stack_lvl+0x82/0xd0 [ 43.860998][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.861166][ C1] ? common_startup_64+0x12c/0x138 [ 43.861474][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.861645][ C1] ? __pfx_usage_skip+0x10/0x10 [ 43.861780][ C1] ? __pfx_usage_match+0x10/0x10 [ 43.861915][ C1] ? arch_stack_walk+0x8c/0xf0 [ 43.862130][ C1] mark_lock_irq+0x4cd/0xa10 [ 43.862265][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.862401][ C1] ? stack_trace_save+0x94/0xd0 [ 43.862537][ C1] ? add_chain_cache+0x248/0x8b0 [ 43.862755][ C1] ? save_trace+0x8f/0x5b0 [ 43.862897][ C1] mark_lock+0x28d/0x3e0 [ 43.863002][ C1] mark_usage+0xd9/0x2a0 [ 43.863106][ C1] __lock_acquire+0x797/0x1570 [ 43.863246][ C1] ? __lock_acquire+0xaf0/0x1570 [ 43.863460][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.863696][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.863831][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.864116][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.864256][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 43.864391][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.864595][ C1] ? lock_acquire+0x32/0xc0 [ 43.864809][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.865016][ C1] _raw_spin_lock+0x30/0x40 [ 43.865152][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.865356][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.865647][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.865881][ C1] call_timer_fn+0x13b/0x230 [ 43.866017][ C1] ? call_timer_fn+0xe8/0x230 [ 43.866230][ C1] ? call_timer_fn+0xe8/0x230 [ 43.866364][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 43.866513][ C1] ? mark_lock+0x38/0x3e0 [ 43.866625][ C1] __run_timers+0x545/0x810 [ 43.866764][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.867091][ C1] ? __pfx___run_timers+0x10/0x10 [ 43.867227][ C1] ? __lock_release+0x103/0x460 [ 43.867372][ C1] ? do_raw_spin_lock+0x131/0x270 [ 43.867508][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.867644][ C1] ? lock_acquire+0x32/0xc0 [ 43.867779][ C1] ? timer_expire_remote+0x93/0xe0 [ 43.867916][ C1] timer_expire_remote+0x9b/0xe0 [ 43.868057][ C1] tmigr_handle_remote_cpu+0x270/0x430 [ 43.868275][ C1] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 43.868447][ C1] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.868583][ C1] tmigr_handle_remote+0x21d/0x3a0 [ 43.868717][ C1] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 43.868854][ C1] __do_softirq+0x1f8/0x5df [ 43.868993][ C1] irq_exit_rcu+0x97/0xc0 [ 43.869095][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.869232][ C1] [ 43.869301][ C1] [ 43.869450][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.869616][ C1] RIP: 0010:default_idle+0xf/0x20 [ 43.869758][ 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 [ 43.870236][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 43.870414][ C1] RAX: 000000000008a387 RBX: 1ffff92000029fc1 RCX: ffffffffb9d0e9d5 [ 43.870702][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb76aa4a4 [ 43.870904][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 43.871106][ C1] R10: ffff8880360b84e3 R11: ffff8880360ad9b0 R12: 0000000000000000 [ 43.871310][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 43.871541][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 43.871678][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 43.871815][ C1] default_idle_call+0x6d/0xb0 [ 43.872060][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.872197][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 43.872334][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 43.872473][ C1] do_idle+0xf9/0x160 [ 43.872583][ C1] cpu_startup_entry+0x54/0x60 [ 43.872717][ C1] start_secondary+0x21c/0x2b0 [ 43.872854][ C1] ? __pfx_start_secondary+0x10/0x10 [ 43.872989][ C1] common_startup_64+0x12c/0x138 [ 43.873128][ C1] [ 207.527631][ T1476] br0: port 2(veth2) entered disabled state [ 207.641446][ T1477] br0: port 1(veth1) entered disabled state [ 207.752269][ T1478] veth2: left allmulticast mode [ 207.752451][ T1478] veth2: left promiscuous mode [ 207.752693][ T1478] br0: port 2(veth2) entered disabled state [ 207.753611][ T1478] veth1: left allmulticast mode [ 207.753746][ T1478] veth1: left promiscuous mode [ 207.753984][ T1478] br0: port 1(veth1) entered disabled state