[ 25.917569][ T258] ip (258) used greatest stack depth: 23408 bytes left [ 30.879266][ T303] br1: port 1(veth1) entered blocking state [ 30.879637][ T303] br1: port 1(veth1) entered disabled state [ 30.879930][ T303] veth1: entered allmulticast mode [ 30.883085][ T303] veth1: entered promiscuous mode [ 31.011753][ T49] br1: port 1(veth1) entered blocking state [ 31.012388][ T49] br1: port 1(veth1) entered forwarding state [ 31.151128][ T305] br1: port 2(veth2) entered blocking state [ 31.151401][ T305] br1: port 2(veth2) entered disabled state [ 31.151669][ T305] veth2: entered allmulticast mode [ 31.153680][ T305] veth2: entered promiscuous mode [ 31.272486][ T51] br1: port 2(veth2) entered blocking state [ 31.272821][ T51] br1: port 2(veth2) entered forwarding state [ 31.621787][ T309] 8021q: 802.1Q VLAN Support v1.8 [ 32.562539][ T319] GACT probability NOT on [ 41.332441][ T360] Mirror/redirect action on [ 46.384368][ C0] [ 46.384548][ C0] ======================================================== [ 46.384817][ C0] WARNING: possible irq lock inversion dependency detected [ 46.385063][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 46.385236][ C0] -------------------------------------------------------- [ 46.385489][ C0] swapper/0/0 just changed the state of lock: [ 46.385694][ C0] ffff888005ad2c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.386109][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 46.386356][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 46.386360][ C0] [ 46.386360][ C0] [ 46.386360][ C0] and interrupts could create inverse lock ordering between them. [ 46.386360][ C0] [ 46.386985][ C0] [ 46.386985][ C0] other info that might help us debug this: [ 46.387240][ C0] Chain exists of: [ 46.387240][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 46.387240][ C0] [ 46.387639][ C0] Possible interrupt unsafe locking scenario: [ 46.387639][ C0] [ 46.387874][ C0] CPU0 CPU1 [ 46.388046][ C0] ---- ---- [ 46.388218][ C0] lock(&p->alloc_lock); [ 46.388346][ C0] local_irq_disable(); [ 46.388548][ C0] lock(&br->lock); [ 46.388758][ C0] lock(lweventlist_lock); [ 46.388978][ C0] [ 46.389108][ C0] lock(&br->lock); [ 46.389236][ C0] [ 46.389236][ C0] *** DEADLOCK *** [ 46.389236][ C0] [ 46.389488][ C0] 1 lock held by swapper/0/0: [ 46.389661][ C0] #0: ffffc90000007b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 46.390007][ C0] [ 46.390007][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 46.390295][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 46.390471][ C0] HARDIRQ-ON-W at: [ 46.390610][ C0] __lock_acquire+0x797/0x1570 [ 46.390828][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.391038][ C0] _raw_spin_lock+0x30/0x40 [ 46.391255][ C0] set_mems_allowed+0x1d/0x210 [ 46.391461][ C0] kernel_init_freeable+0x72/0x310 [ 46.391675][ C0] kernel_init+0x20/0x200 [ 46.391886][ C0] ret_from_fork+0x31/0x70 [ 46.392107][ C0] ret_from_fork_asm+0x1a/0x30 [ 46.392312][ C0] SOFTIRQ-ON-W at: [ 46.392436][ C0] __lock_acquire+0x797/0x1570 [ 46.392642][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.392859][ C0] _raw_spin_lock+0x30/0x40 [ 46.393064][ C0] set_mems_allowed+0x1d/0x210 [ 46.393272][ C0] kernel_init_freeable+0x72/0x310 [ 46.393480][ C0] kernel_init+0x20/0x200 [ 46.393693][ C0] ret_from_fork+0x31/0x70 [ 46.393900][ C0] ret_from_fork_asm+0x1a/0x30 [ 46.394108][ C0] INITIAL USE at: [ 46.394231][ C0] __lock_acquire+0x797/0x1570 [ 46.394442][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.394647][ C0] _raw_spin_lock+0x30/0x40 [ 46.394860][ C0] set_mems_allowed+0x1d/0x210 [ 46.395061][ C0] kernel_init_freeable+0x72/0x310 [ 46.395266][ C0] kernel_init+0x20/0x200 [ 46.395472][ C0] ret_from_fork+0x31/0x70 [ 46.395682][ C0] ret_from_fork_asm+0x1a/0x30 [ 46.395893][ C0] } [ 46.395978][ C0] ... key at: [] __key.387+0x0/0x40 [ 46.396231][ C0] ... acquired at: [ 46.396357][ C0] __lock_acquire+0xaf0/0x1570 [ 46.396530][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.396703][ C0] _raw_spin_lock+0x30/0x40 [ 46.396868][ C0] __get_task_comm+0x27/0x70 [ 46.397037][ C0] ref_tracker_alloc+0x2ee/0x490 [ 46.397208][ C0] linkwatch_fire_event+0x196/0x200 [ 46.397378][ C0] veth_newlink+0x367/0x830 [veth] [ 46.397564][ C0] rtnl_newlink_create+0x341/0x850 [ 46.397734][ C0] __rtnl_newlink+0xac9/0xd80 [ 46.397893][ C0] rtnl_newlink+0x63/0xa0 [ 46.398064][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.398228][ C0] netlink_rcv_skb+0x130/0x360 [ 46.398401][ C0] netlink_unicast+0x449/0x710 [ 46.398564][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.398736][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 46.398919][ C0] ___sys_sendmsg+0xee/0x170 [ 46.399085][ C0] __sys_sendmsg+0xcd/0x170 [ 46.399246][ C0] do_syscall_64+0xc6/0x1e0 [ 46.399410][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.399613][ C0] [ 46.399694][ C0] -> (lweventlist_lock){....}-{2:2} { [ 46.399869][ C0] INITIAL USE at: [ 46.399999][ C0] __lock_acquire+0x797/0x1570 [ 46.400208][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.400411][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.400618][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 46.400823][ C0] rtnl_getlink+0x4c9/0x970 [ 46.401026][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.401237][ C0] netlink_rcv_skb+0x130/0x360 [ 46.401442][ C0] netlink_unicast+0x449/0x710 [ 46.401645][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.401851][ C0] __sys_sendto+0x37d/0x410 [ 46.402060][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.402270][ C0] do_syscall_64+0xc6/0x1e0 [ 46.402474][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.402721][ C0] } [ 46.402806][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 46.403049][ C0] ... acquired at: [ 46.403172][ C0] __lock_acquire+0xaf0/0x1570 [ 46.403339][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.403500][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.403671][ C0] linkwatch_fire_event+0x74/0x200 [ 46.403836][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 46.404083][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 46.404320][ C0] dev_set_mac_address+0x28a/0x410 [ 46.404494][ C0] dev_set_mac_address_user+0x31/0x50 [ 46.404660][ C0] do_setlink+0x17b4/0x21e0 [ 46.404824][ C0] rtnl_setlink+0x1f7/0x310 [ 46.404990][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.405151][ C0] netlink_rcv_skb+0x130/0x360 [ 46.405322][ C0] netlink_unicast+0x449/0x710 [ 46.405486][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.405661][ C0] __sys_sendto+0x37d/0x410 [ 46.405826][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.405989][ C0] do_syscall_64+0xc6/0x1e0 [ 46.406154][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.406364][ C0] [ 46.406453][ C0] -> (&br->lock){+.-.}-{2:2} { [ 46.406629][ C0] HARDIRQ-ON-W at: [ 46.406753][ C0] __lock_acquire+0x797/0x1570 [ 46.406972][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.407177][ C0] _raw_spin_lock_bh+0x38/0x50 [ 46.407392][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 46.407696][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 46.407990][ C0] br_changelink+0x36c/0x1360 [bridge] [ 46.408240][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 46.408489][ C0] rtnl_newlink_create+0x341/0x850 [ 46.408706][ C0] __rtnl_newlink+0xac9/0xd80 [ 46.408922][ C0] rtnl_newlink+0x63/0xa0 [ 46.409135][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.409353][ C0] netlink_rcv_skb+0x130/0x360 [ 46.409541][ C0] netlink_unicast+0x449/0x710 [ 46.409729][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.409930][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 46.410135][ C0] ___sys_sendmsg+0xee/0x170 [ 46.410341][ C0] __sys_sendmsg+0xcd/0x170 [ 46.410547][ C0] do_syscall_64+0xc6/0x1e0 [ 46.410760][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.410989][ C0] IN-SOFTIRQ-W at: [ 46.411104][ C0] __lock_acquire+0x797/0x1570 [ 46.411297][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.411486][ C0] _raw_spin_lock+0x30/0x40 [ 46.411675][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.411946][ C0] call_timer_fn+0x13b/0x230 [ 46.412143][ C0] __run_timers+0x545/0x810 [ 46.412346][ C0] timer_expire_remote+0x9b/0xe0 [ 46.412546][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 46.412739][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 46.412927][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 46.413125][ C0] __do_softirq+0x1f8/0x5df [ 46.413315][ C0] irq_exit_rcu+0x97/0xc0 [ 46.413508][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.413775][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.414025][ C0] default_idle+0xf/0x20 [ 46.414233][ C0] default_idle_call+0x6d/0xb0 [ 46.414438][ C0] cpuidle_idle_call+0x1f4/0x280 [ 46.414650][ C0] do_idle+0xf9/0x160 [ 46.414818][ C0] cpu_startup_entry+0x54/0x60 [ 46.415023][ C0] rest_init+0x14f/0x260 [ 46.415230][ C0] start_kernel+0x318/0x3d0 [ 46.415438][ C0] x86_64_start_reservations+0x18/0x30 [ 46.415644][ C0] x86_64_start_kernel+0xba/0x110 [ 46.415853][ C0] common_startup_64+0x12c/0x138 [ 46.416062][ C0] INITIAL USE at: [ 46.416186][ C0] __lock_acquire+0x797/0x1570 [ 46.416393][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.416600][ C0] _raw_spin_lock_bh+0x38/0x50 [ 46.416809][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 46.417211][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 46.417533][ C0] br_changelink+0x36c/0x1360 [bridge] [ 46.417779][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 46.418021][ C0] rtnl_newlink_create+0x341/0x850 [ 46.418224][ C0] __rtnl_newlink+0xac9/0xd80 [ 46.418429][ C0] rtnl_newlink+0x63/0xa0 [ 46.418658][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.418868][ C0] netlink_rcv_skb+0x130/0x360 [ 46.419084][ C0] netlink_unicast+0x449/0x710 [ 46.419297][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.419598][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 46.419813][ C0] ___sys_sendmsg+0xee/0x170 [ 46.420024][ C0] __sys_sendmsg+0xcd/0x170 [ 46.420334][ C0] do_syscall_64+0xc6/0x1e0 [ 46.420542][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.420790][ C0] } [ 46.420875][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 46.421303][ C0] ... acquired at: [ 46.421426][ C0] mark_lock+0x28d/0x3e0 [ 46.421593][ C0] mark_usage+0xd9/0x2a0 [ 46.421779][ C0] __lock_acquire+0x797/0x1570 [ 46.421945][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.422116][ C0] _raw_spin_lock+0x30/0x40 [ 46.422277][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.422525][ C0] call_timer_fn+0x13b/0x230 [ 46.422692][ C0] __run_timers+0x545/0x810 [ 46.422860][ C0] timer_expire_remote+0x9b/0xe0 [ 46.423025][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 46.423208][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 46.423470][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 46.423640][ C0] __do_softirq+0x1f8/0x5df [ 46.423799][ C0] irq_exit_rcu+0x97/0xc0 [ 46.423964][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.424273][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.424479][ C0] default_idle+0xf/0x20 [ 46.424641][ C0] default_idle_call+0x6d/0xb0 [ 46.424811][ C0] cpuidle_idle_call+0x1f4/0x280 [ 46.425072][ C0] do_idle+0xf9/0x160 [ 46.425196][ C0] cpu_startup_entry+0x54/0x60 [ 46.425364][ C0] rest_init+0x14f/0x260 [ 46.425527][ C0] start_kernel+0x318/0x3d0 [ 46.425793][ C0] x86_64_start_reservations+0x18/0x30 [ 46.425957][ C0] x86_64_start_kernel+0xba/0x110 [ 46.426121][ C0] common_startup_64+0x12c/0x138 [ 46.426290][ C0] [ 46.426372][ C0] [ 46.426372][ C0] stack backtrace: [ 46.426766][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 46.427012][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 46.427473][ C0] Call Trace: [ 46.427613][ C0] [ 46.427697][ C0] dump_stack_lvl+0x82/0xd0 [ 46.427864][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 46.428074][ C0] ? common_startup_64+0x12c/0x138 [ 46.428333][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 46.428533][ C0] ? __pfx_usage_skip+0x10/0x10 [ 46.428703][ C0] ? __pfx_usage_match+0x10/0x10 [ 46.428865][ C0] ? arch_stack_walk+0x8c/0xf0 [ 46.429160][ C0] mark_lock_irq+0x4cd/0xa10 [ 46.429324][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 46.429492][ C0] ? stack_trace_save+0x94/0xd0 [ 46.429660][ C0] ? add_chain_cache+0x248/0x8b0 [ 46.429823][ C0] ? save_trace+0x8f/0x5b0 [ 46.429985][ C0] mark_lock+0x28d/0x3e0 [ 46.430108][ C0] mark_usage+0xd9/0x2a0 [ 46.430230][ C0] __lock_acquire+0x797/0x1570 [ 46.430390][ C0] ? __lock_acquire+0xaf0/0x1570 [ 46.430557][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.430832][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.430999][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.431238][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 46.431495][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 46.431659][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.431896][ C0] ? lock_acquire+0x32/0xc0 [ 46.432058][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.432391][ C0] _raw_spin_lock+0x30/0x40 [ 46.432561][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.432809][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.433168][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.433449][ C0] call_timer_fn+0x13b/0x230 [ 46.433612][ C0] ? call_timer_fn+0xe8/0x230 [ 46.433774][ C0] ? call_timer_fn+0xe8/0x230 [ 46.433938][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 46.434116][ C0] ? mark_lock+0x38/0x3e0 [ 46.434244][ C0] __run_timers+0x545/0x810 [ 46.434410][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.434692][ C0] ? __pfx___run_timers+0x10/0x10 [ 46.434854][ C0] ? __lock_release+0x103/0x460 [ 46.435016][ C0] ? do_raw_spin_lock+0x131/0x270 [ 46.435190][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 46.435447][ C0] ? lock_acquire+0x32/0xc0 [ 46.435617][ C0] ? timer_expire_remote+0x93/0xe0 [ 46.435782][ C0] timer_expire_remote+0x9b/0xe0 [ 46.435950][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 46.436210][ C0] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 46.436414][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 46.436588][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 46.436747][ C0] ? do_raw_spin_lock+0x131/0x270 [ 46.437009][ C0] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 46.437176][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 46.437340][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 46.437566][ C0] __do_softirq+0x1f8/0x5df [ 46.437826][ C0] irq_exit_rcu+0x97/0xc0 [ 46.437957][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.438121][ C0] [ 46.438208][ C0] [ 46.438290][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.438501][ C0] RIP: 0010:default_idle+0xf/0x20 [ 46.438768][ C0] 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 [ 46.439548][ C0] RSP: 0018:ffffffffa8c07e00 EFLAGS: 00000246 [ 46.439755][ C0] RAX: 00000000000c6359 RBX: 1ffffffff5180fc2 RCX: ffffffffa7d0e9d5 [ 46.440011][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa56aa4a4 [ 46.440349][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 46.440591][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 46.440830][ C0] R13: ffffffffa8c1d000 R14: dffffc0000000000 R15: 0000000000014770 [ 46.441181][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 46.441351][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 46.441520][ C0] default_idle_call+0x6d/0xb0 [ 46.441680][ C0] cpuidle_idle_call+0x1f4/0x280 [ 46.441842][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 46.442004][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 46.442167][ C0] do_idle+0xf9/0x160 [ 46.442288][ C0] cpu_startup_entry+0x54/0x60 [ 46.442447][ C0] rest_init+0x14f/0x260 [ 46.442578][ C0] start_kernel+0x318/0x3d0 [ 46.442745][ C0] x86_64_start_reservations+0x18/0x30 [ 46.442904][ C0] x86_64_start_kernel+0xba/0x110 [ 46.443063][ C0] common_startup_64+0x12c/0x138 [ 46.443323][ C0] [ 77.381817][ T532] br1: port 1(veth1) entered disabled state [ 77.482751][ T533] br1: port 2(veth2) entered disabled state [ 77.592188][ T535] veth2: left allmulticast mode [ 77.592364][ T535] veth2: left promiscuous mode [ 77.592613][ T535] br1: port 2(veth2) entered disabled state [ 77.593927][ T535] veth1: left allmulticast mode [ 77.595249][ T535] veth1: left promiscuous mode [ 77.595790][ T535] br1: port 1(veth1) entered disabled state