[ 28.746346][ T288] br1: port 1(veth1) entered blocking state [ 28.746793][ T288] br1: port 1(veth1) entered disabled state [ 28.747192][ T288] veth1: entered allmulticast mode [ 28.749623][ T288] veth1: entered promiscuous mode [ 28.871139][ T7] br1: port 1(veth1) entered blocking state [ 28.871657][ T7] br1: port 1(veth1) entered forwarding state [ 28.991099][ T291] br1: port 2(veth2) entered blocking state [ 28.992656][ T291] br1: port 2(veth2) entered disabled state [ 28.992909][ T291] veth2: entered allmulticast mode [ 28.994793][ T291] veth2: entered promiscuous mode [ 29.103617][ T7] br1: port 2(veth2) entered blocking state [ 29.103902][ T7] br1: port 2(veth2) entered forwarding state [ 37.226505][ T318] GACT probability NOT on [ 40.789331][ C0] tc action pedit unable to extract header offset for header type (0x5) [ 43.347471][ C2] tc action pedit unable to extract header offset for header type (0x5) [ 43.347863][ C3] tc action pedit unable to extract header offset for header type (0x5) [ 44.371229][ C0] [ 44.371345][ C0] ======================================================== [ 44.371572][ C0] WARNING: possible irq lock inversion dependency detected [ 44.371821][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 44.371980][ C0] -------------------------------------------------------- [ 44.372211][ C0] swapper/0/0 just changed the state of lock: [ 44.372399][ C0] ffff88800579ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.372780][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.373007][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 44.373012][ C0] [ 44.373012][ C0] [ 44.373012][ C0] and interrupts could create inverse lock ordering between them. [ 44.373012][ C0] [ 44.373573][ C0] [ 44.373573][ C0] other info that might help us debug this: [ 44.373795][ C0] Chain exists of: [ 44.373795][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.373795][ C0] [ 44.374146][ C0] Possible interrupt unsafe locking scenario: [ 44.374146][ C0] [ 44.374370][ C0] CPU0 CPU1 [ 44.374518][ C0] ---- ---- [ 44.374672][ C0] lock(&p->alloc_lock); [ 44.374787][ C0] local_irq_disable(); [ 44.374975][ C0] lock(&br->lock); [ 44.375166][ C0] lock(lweventlist_lock); [ 44.375350][ C0] [ 44.375468][ C0] lock(&br->lock); [ 44.375586][ C0] [ 44.375586][ C0] *** DEADLOCK *** [ 44.375586][ C0] [ 44.375819][ C0] 1 lock held by swapper/0/0: [ 44.375975][ C0] #0: ffffc90000007d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.376286][ C0] [ 44.376286][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 44.376553][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.376712][ C0] HARDIRQ-ON-W at: [ 44.376835][ C0] __lock_acquire+0x797/0x1570 [ 44.377030][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.377226][ C0] _raw_spin_lock+0x30/0x40 [ 44.377420][ C0] set_mems_allowed+0x1d/0x210 [ 44.377718][ C0] kernel_init_freeable+0x72/0x310 [ 44.377910][ C0] kernel_init+0x20/0x200 [ 44.378102][ C0] ret_from_fork+0x31/0x70 [ 44.378298][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.378491][ C0] SOFTIRQ-ON-W at: [ 44.378607][ C0] __lock_acquire+0x797/0x1570 [ 44.378797][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.379087][ C0] _raw_spin_lock+0x30/0x40 [ 44.379276][ C0] set_mems_allowed+0x1d/0x210 [ 44.379474][ C0] kernel_init_freeable+0x72/0x310 [ 44.379759][ C0] kernel_init+0x20/0x200 [ 44.379946][ C0] ret_from_fork+0x31/0x70 [ 44.380135][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.380320][ C0] INITIAL USE at: [ 44.380526][ C0] __lock_acquire+0x797/0x1570 [ 44.380731][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.380925][ C0] _raw_spin_lock+0x30/0x40 [ 44.381299][ C0] set_mems_allowed+0x1d/0x210 [ 44.381493][ C0] kernel_init_freeable+0x72/0x310 [ 44.381683][ C0] kernel_init+0x20/0x200 [ 44.381873][ C0] ret_from_fork+0x31/0x70 [ 44.382057][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.382344][ C0] } [ 44.382419][ C0] ... key at: [] __key.387+0x0/0x40 [ 44.382650][ C0] ... acquired at: [ 44.382766][ C0] __lock_acquire+0xaf0/0x1570 [ 44.382916][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.383068][ C0] _raw_spin_lock+0x30/0x40 [ 44.383223][ C0] __get_task_comm+0x27/0x70 [ 44.383557][ C0] ref_tracker_alloc+0x2ee/0x490 [ 44.383712][ C0] linkwatch_fire_event+0x196/0x200 [ 44.383865][ C0] veth_newlink+0x367/0x830 [veth] [ 44.384023][ C0] rtnl_newlink_create+0x341/0x850 [ 44.384273][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.384422][ C0] rtnl_newlink+0x63/0xa0 [ 44.384579][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.384725][ C0] netlink_rcv_skb+0x130/0x360 [ 44.384882][ C0] netlink_unicast+0x449/0x710 [ 44.385122][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.385275][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.385428][ C0] ___sys_sendmsg+0xee/0x170 [ 44.385580][ C0] __sys_sendmsg+0xcd/0x170 [ 44.385821][ C0] do_syscall_64+0xc6/0x1e0 [ 44.385975][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.386163][ C0] [ 44.386246][ C0] -> (lweventlist_lock){....}-{2:2} { [ 44.386490][ C0] INITIAL USE at: [ 44.386606][ C0] __lock_acquire+0x797/0x1570 [ 44.386895][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.387083][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.387272][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 44.387556][ C0] rtnl_getlink+0x4c9/0x970 [ 44.387744][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.387934][ C0] netlink_rcv_skb+0x130/0x360 [ 44.388213][ C0] netlink_unicast+0x449/0x710 [ 44.388397][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.388579][ C0] __sys_sendto+0x37d/0x410 [ 44.388763][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.389051][ C0] do_syscall_64+0xc6/0x1e0 [ 44.389242][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.389472][ C0] } [ 44.389643][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.389864][ C0] ... acquired at: [ 44.389974][ C0] __lock_acquire+0xaf0/0x1570 [ 44.390125][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.390374][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.390525][ C0] linkwatch_fire_event+0x74/0x200 [ 44.390695][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.390934][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.391157][ C0] dev_set_mac_address+0x28a/0x410 [ 44.391410][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.391557][ C0] do_setlink+0x17b4/0x21e0 [ 44.391710][ C0] rtnl_setlink+0x1f7/0x310 [ 44.391947][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.392091][ C0] netlink_rcv_skb+0x130/0x360 [ 44.392243][ C0] netlink_unicast+0x449/0x710 [ 44.392395][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.392642][ C0] __sys_sendto+0x37d/0x410 [ 44.392792][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.392939][ C0] do_syscall_64+0xc6/0x1e0 [ 44.393193][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.393380][ C0] [ 44.393454][ C0] -> (&br->lock){+.-.}-{2:2} { [ 44.393608][ C0] HARDIRQ-ON-W at: [ 44.393728][ C0] __lock_acquire+0x797/0x1570 [ 44.394019][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.394301][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.394491][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 44.394760][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.395130][ C0] br_changelink+0x36c/0x1360 [bridge] [ 44.395364][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.395589][ C0] rtnl_newlink_create+0x341/0x850 [ 44.395874][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.396068][ C0] rtnl_newlink+0x63/0xa0 [ 44.396256][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.396553][ C0] netlink_rcv_skb+0x130/0x360 [ 44.396742][ C0] netlink_unicast+0x449/0x710 [ 44.396931][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.397117][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.397422][ C0] ___sys_sendmsg+0xee/0x170 [ 44.397611][ C0] __sys_sendmsg+0xcd/0x170 [ 44.397801][ C0] do_syscall_64+0xc6/0x1e0 [ 44.397992][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.398320][ C0] IN-SOFTIRQ-W at: [ 44.398432][ C0] __lock_acquire+0x797/0x1570 [ 44.398718][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.398995][ C0] _raw_spin_lock+0x30/0x40 [ 44.399285][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.399655][ C0] call_timer_fn+0x13b/0x230 [ 44.399851][ C0] __run_timers+0x545/0x810 [ 44.400137][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.400323][ C0] __do_softirq+0x1f8/0x5df [ 44.400517][ C0] irq_exit_rcu+0x97/0xc0 [ 44.400818][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.401050][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.401368][ C0] default_idle+0xf/0x20 [ 44.401575][ C0] default_idle_call+0x6d/0xb0 [ 44.401861][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.402058][ C0] do_idle+0xf9/0x160 [ 44.402315][ C0] cpu_startup_entry+0x54/0x60 [ 44.402505][ C0] rest_init+0x14f/0x260 [ 44.402695][ C0] start_kernel+0x318/0x3d0 [ 44.402977][ C0] x86_64_start_reservations+0x18/0x30 [ 44.403171][ C0] x86_64_start_kernel+0xba/0x110 [ 44.403361][ C0] common_startup_64+0x12c/0x138 [ 44.403647][ C0] INITIAL USE at: [ 44.403759][ C0] __lock_acquire+0x797/0x1570 [ 44.403948][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.404140][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.404430][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 44.404702][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.404961][ C0] br_changelink+0x36c/0x1360 [bridge] [ 44.405190][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.405509][ C0] rtnl_newlink_create+0x341/0x850 [ 44.405697][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.405884][ C0] rtnl_newlink+0x63/0xa0 [ 44.406072][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.406353][ C0] netlink_rcv_skb+0x130/0x360 [ 44.406535][ C0] netlink_unicast+0x449/0x710 [ 44.406721][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.406905][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.407193][ C0] ___sys_sendmsg+0xee/0x170 [ 44.407379][ C0] __sys_sendmsg+0xcd/0x170 [ 44.407565][ C0] do_syscall_64+0xc6/0x1e0 [ 44.407843][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.408064][ C0] } [ 44.408140][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.408524][ C0] ... acquired at: [ 44.408633][ C0] mark_lock+0x28d/0x3e0 [ 44.408790][ C0] mark_usage+0xd9/0x2a0 [ 44.408943][ C0] __lock_acquire+0x797/0x1570 [ 44.409089][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.409234][ C0] _raw_spin_lock+0x30/0x40 [ 44.409380][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.409688][ C0] call_timer_fn+0x13b/0x230 [ 44.409835][ C0] __run_timers+0x545/0x810 [ 44.409981][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.410126][ C0] __do_softirq+0x1f8/0x5df [ 44.410273][ C0] irq_exit_rcu+0x97/0xc0 [ 44.410601][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.410797][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.410984][ C0] default_idle+0xf/0x20 [ 44.411237][ C0] default_idle_call+0x6d/0xb0 [ 44.411386][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.411539][ C0] do_idle+0xf9/0x160 [ 44.411651][ C0] cpu_startup_entry+0x54/0x60 [ 44.411807][ C0] rest_init+0x14f/0x260 [ 44.411958][ C0] start_kernel+0x318/0x3d0 [ 44.412106][ C0] x86_64_start_reservations+0x18/0x30 [ 44.412251][ C0] x86_64_start_kernel+0xba/0x110 [ 44.412398][ C0] common_startup_64+0x12c/0x138 [ 44.412550][ C0] [ 44.412624][ C0] [ 44.412624][ C0] stack backtrace: [ 44.412803][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 44.413027][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.413349][ C0] Call Trace: [ 44.413461][ C0] [ 44.413536][ C0] dump_stack_lvl+0x82/0xd0 [ 44.413692][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.413965][ C0] ? common_startup_64+0x12c/0x138 [ 44.414326][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.414560][ C0] ? __pfx_usage_skip+0x10/0x10 [ 44.414711][ C0] ? __pfx_usage_match+0x10/0x10 [ 44.414953][ C0] ? arch_stack_walk+0x8c/0xf0 [ 44.415104][ C0] mark_lock_irq+0x4cd/0xa10 [ 44.415256][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.415407][ C0] ? stack_trace_save+0x94/0xd0 [ 44.415654][ C0] ? add_chain_cache+0x248/0x8b0 [ 44.415803][ C0] ? save_trace+0x8f/0x5b0 [ 44.415959][ C0] mark_lock+0x28d/0x3e0 [ 44.416083][ C0] mark_usage+0xd9/0x2a0 [ 44.416215][ C0] __lock_acquire+0x797/0x1570 [ 44.416478][ C0] ? __lock_acquire+0xaf0/0x1570 [ 44.416643][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.417053][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.417221][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.417455][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.417614][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 44.417772][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.418095][ C0] ? lock_acquire+0x32/0xc0 [ 44.418252][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.418486][ C0] _raw_spin_lock+0x30/0x40 [ 44.418647][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.418972][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.419306][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.419576][ C0] call_timer_fn+0x13b/0x230 [ 44.419735][ C0] ? call_timer_fn+0xe8/0x230 [ 44.419892][ C0] ? call_timer_fn+0xe8/0x230 [ 44.420049][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 44.420213][ C0] ? mark_lock+0x38/0x3e0 [ 44.420335][ C0] __run_timers+0x545/0x810 [ 44.420492][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.420787][ C0] ? __pfx___run_timers+0x10/0x10 [ 44.420948][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.421105][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.421358][ C0] ? lock_acquire+0x32/0xc0 [ 44.421520][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 44.421686][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.421846][ C0] __do_softirq+0x1f8/0x5df [ 44.422005][ C0] irq_exit_rcu+0x97/0xc0 [ 44.422128][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.422286][ C0] [ 44.422368][ C0] [ 44.422447][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.422644][ C0] RIP: 0010:default_idle+0xf/0x20 [ 44.422811][ 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 [ 44.423378][ C0] RSP: 0018:ffffffff8fe07e00 EFLAGS: 00000242 [ 44.423580][ C0] RAX: 00000000000b0f85 RBX: 1ffffffff1fc0fc2 RCX: ffffffff8ef0e9d5 [ 44.423822][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8c8aa4a4 [ 44.424152][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 44.424374][ C0] R10: ffff8880360384e3 R11: 1ffff110003a910c R12: 0000000000000000 [ 44.424596][ C0] R13: ffffffff8fe1d000 R14: dffffc0000000000 R15: 0000000000014770 [ 44.424914][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.425065][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 44.425219][ C0] default_idle_call+0x6d/0xb0 [ 44.425370][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.425608][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.425754][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.425904][ C0] do_idle+0xf9/0x160 [ 44.426016][ C0] cpu_startup_entry+0x54/0x60 [ 44.426252][ C0] rest_init+0x14f/0x260 [ 44.426365][ C0] start_kernel+0x318/0x3d0 [ 44.426519][ C0] x86_64_start_reservations+0x18/0x30 [ 44.426670][ C0] x86_64_start_kernel+0xba/0x110 [ 44.426817][ C0] common_startup_64+0x12c/0x138 [ 44.427060][ C0] [ 59.219290][ C2] tc action pedit unable to extract header offset for header type (0x4) [ 65.128704][ T679] br1: port 2(veth2) entered disabled state [ 65.226133][ T681] veth2: left allmulticast mode [ 65.226394][ T681] veth2: left promiscuous mode [ 65.226661][ T681] br1: port 2(veth2) entered disabled state [ 65.326785][ T682] br1: port 1(veth1) entered disabled state [ 65.425135][ T684] veth1: left allmulticast mode [ 65.425428][ T684] veth1: left promiscuous mode [ 65.425687][ T684] br1: port 1(veth1) entered disabled state