[ 26.630493][ T276] ip (276) used greatest stack depth: 24224 bytes left [ 28.167107][ T290] br1: port 1(veth1) entered blocking state [ 28.167514][ T290] br1: port 1(veth1) entered disabled state [ 28.167817][ T290] veth1: entered allmulticast mode [ 28.176607][ T290] veth1: entered promiscuous mode [ 28.183298][ T290] ip (290) used greatest stack depth: 24192 bytes left [ 28.279769][ T7] br1: port 1(veth1) entered blocking state [ 28.280285][ T7] br1: port 1(veth1) entered forwarding state [ 28.401458][ T293] br1: port 2(veth2) entered blocking state [ 28.401846][ T293] br1: port 2(veth2) entered disabled state [ 28.402424][ T293] veth2: entered allmulticast mode [ 28.404288][ T293] veth2: entered promiscuous mode [ 28.516439][ T49] br1: port 2(veth2) entered blocking state [ 28.516680][ T49] br1: port 2(veth2) entered forwarding state [ 36.549856][ T321] GACT probability NOT on [ 41.783226][ C3] tc action pedit unable to extract header offset for header type (0x5) [ 43.318219][ C1] [ 43.318363][ C1] ======================================================== [ 43.318591][ C1] WARNING: possible irq lock inversion dependency detected [ 43.318797][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 43.318948][ C1] -------------------------------------------------------- [ 43.319160][ C1] swapper/1/0 just changed the state of lock: [ 43.319331][ C1] ffff88800686ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.319681][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.319885][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 43.319889][ C1] [ 43.319889][ C1] [ 43.319889][ C1] and interrupts could create inverse lock ordering between them. [ 43.319889][ C1] [ 43.320416][ C1] [ 43.320416][ C1] other info that might help us debug this: [ 43.320619][ C1] Chain exists of: [ 43.320619][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 43.320619][ C1] [ 43.320944][ C1] Possible interrupt unsafe locking scenario: [ 43.320944][ C1] [ 43.321161][ C1] CPU0 CPU1 [ 43.321297][ C1] ---- ---- [ 43.321436][ C1] lock(&p->alloc_lock); [ 43.321542][ C1] local_irq_disable(); [ 43.321723][ C1] lock(&br->lock); [ 43.321905][ C1] lock(lweventlist_lock); [ 43.322075][ C1] [ 43.322183][ C1] lock(&br->lock); [ 43.322292][ C1] [ 43.322292][ C1] *** DEADLOCK *** [ 43.322292][ C1] [ 43.322510][ C1] 1 lock held by swapper/1/0: [ 43.322648][ C1] #0: ffffc900001d8b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 43.322943][ C1] [ 43.322943][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 43.323181][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.323332][ C1] HARDIRQ-ON-W at: [ 43.323438][ C1] __lock_acquire+0x797/0x1570 [ 43.323624][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.323802][ C1] _raw_spin_lock+0x30/0x40 [ 43.323979][ C1] set_mems_allowed+0x1d/0x210 [ 43.324157][ C1] kernel_init_freeable+0x72/0x310 [ 43.324340][ C1] kernel_init+0x20/0x200 [ 43.324514][ C1] ret_from_fork+0x31/0x70 [ 43.324689][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.324862][ C1] SOFTIRQ-ON-W at: [ 43.324971][ C1] __lock_acquire+0x797/0x1570 [ 43.325144][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.325318][ C1] _raw_spin_lock+0x30/0x40 [ 43.325491][ C1] set_mems_allowed+0x1d/0x210 [ 43.325663][ C1] kernel_init_freeable+0x72/0x310 [ 43.325835][ C1] kernel_init+0x20/0x200 [ 43.326013][ C1] ret_from_fork+0x31/0x70 [ 43.326184][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.326357][ C1] INITIAL USE at: [ 43.326460][ C1] __lock_acquire+0x797/0x1570 [ 43.326633][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.326805][ C1] _raw_spin_lock+0x30/0x40 [ 43.326981][ C1] set_mems_allowed+0x1d/0x210 [ 43.327198][ C1] kernel_init_freeable+0x72/0x310 [ 43.327443][ C1] kernel_init+0x20/0x200 [ 43.327627][ C1] ret_from_fork+0x31/0x70 [ 43.327800][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.327973][ C1] } [ 43.328048][ C1] ... key at: [] __key.387+0x0/0x40 [ 43.328267][ C1] ... acquired at: [ 43.328371][ C1] __lock_acquire+0xaf0/0x1570 [ 43.328518][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.328740][ C1] _raw_spin_lock+0x30/0x40 [ 43.328883][ C1] __get_task_comm+0x27/0x70 [ 43.329022][ C1] ref_tracker_alloc+0x2ee/0x490 [ 43.329164][ C1] linkwatch_fire_event+0x196/0x200 [ 43.329303][ C1] veth_newlink+0x367/0x830 [veth] [ 43.329460][ C1] rtnl_newlink_create+0x341/0x850 [ 43.329597][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.329734][ C1] rtnl_newlink+0x63/0xa0 [ 43.329876][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.330013][ C1] netlink_rcv_skb+0x130/0x360 [ 43.330150][ C1] netlink_unicast+0x449/0x710 [ 43.330286][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.330425][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.330570][ C1] ___sys_sendmsg+0xee/0x170 [ 43.330712][ C1] __sys_sendmsg+0xcd/0x170 [ 43.330851][ C1] do_syscall_64+0xc6/0x1e0 [ 43.330991][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.331164][ C1] [ 43.331235][ C1] -> (lweventlist_lock){....}-{2:2} { [ 43.331381][ C1] INITIAL USE at: [ 43.331484][ C1] __lock_acquire+0x797/0x1570 [ 43.331664][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.331837][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.332011][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 43.332186][ C1] rtnl_getlink+0x4c9/0x970 [ 43.332357][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.332527][ C1] netlink_rcv_skb+0x130/0x360 [ 43.332703][ C1] netlink_unicast+0x449/0x710 [ 43.332876][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.333049][ C1] __sys_sendto+0x37d/0x410 [ 43.333219][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.333398][ C1] do_syscall_64+0xc6/0x1e0 [ 43.333574][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.333785][ C1] } [ 43.333854][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 43.334060][ C1] ... acquired at: [ 43.334165][ C1] __lock_acquire+0xaf0/0x1570 [ 43.334303][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.334440][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.334578][ C1] linkwatch_fire_event+0x74/0x200 [ 43.334717][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 43.334934][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 43.335136][ C1] dev_set_mac_address+0x28a/0x410 [ 43.335276][ C1] dev_set_mac_address_user+0x31/0x50 [ 43.335413][ C1] do_setlink+0x17b4/0x21e0 [ 43.335549][ C1] rtnl_setlink+0x1f7/0x310 [ 43.335685][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.335824][ C1] netlink_rcv_skb+0x130/0x360 [ 43.335965][ C1] netlink_unicast+0x449/0x710 [ 43.336103][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.336241][ C1] __sys_sendto+0x37d/0x410 [ 43.336380][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.336518][ C1] do_syscall_64+0xc6/0x1e0 [ 43.336655][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.336825][ C1] [ 43.336893][ C1] -> (&br->lock){+.-.}-{2:2} { [ 43.337036][ C1] HARDIRQ-ON-W at: [ 43.337139][ C1] __lock_acquire+0x797/0x1570 [ 43.337320][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.337504][ C1] _raw_spin_lock_bh+0x38/0x50 [ 43.337679][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 43.337923][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 43.338167][ C1] br_changelink+0x36c/0x1360 [bridge] [ 43.338378][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 43.338592][ C1] rtnl_newlink_create+0x341/0x850 [ 43.338766][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.338939][ C1] rtnl_newlink+0x63/0xa0 [ 43.339112][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.339282][ C1] netlink_rcv_skb+0x130/0x360 [ 43.339458][ C1] netlink_unicast+0x449/0x710 [ 43.339635][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.339805][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.339977][ C1] ___sys_sendmsg+0xee/0x170 [ 43.340150][ C1] __sys_sendmsg+0xcd/0x170 [ 43.340322][ C1] do_syscall_64+0xc6/0x1e0 [ 43.340495][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.340703][ C1] IN-SOFTIRQ-W at: [ 43.340811][ C1] __lock_acquire+0x797/0x1570 [ 43.340986][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.341160][ C1] _raw_spin_lock+0x30/0x40 [ 43.341332][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.341578][ C1] call_timer_fn+0x13b/0x230 [ 43.341749][ C1] __run_timers+0x545/0x810 [ 43.341933][ C1] timer_expire_remote+0x9b/0xe0 [ 43.342120][ C1] tmigr_handle_remote_cpu+0x270/0x430 [ 43.342295][ C1] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.342467][ C1] tmigr_handle_remote+0x21d/0x3a0 [ 43.342637][ C1] __do_softirq+0x1f8/0x5df [ 43.342812][ C1] irq_exit_rcu+0x97/0xc0 [ 43.342990][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.343197][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.343406][ C1] default_idle+0xf/0x20 [ 43.343580][ C1] default_idle_call+0x6d/0xb0 [ 43.343756][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.343930][ C1] do_idle+0xf9/0x160 [ 43.344072][ C1] cpu_startup_entry+0x54/0x60 [ 43.344250][ C1] start_secondary+0x21c/0x2b0 [ 43.344423][ C1] common_startup_64+0x12c/0x138 [ 43.344594][ C1] INITIAL USE at: [ 43.344697][ C1] __lock_acquire+0x797/0x1570 [ 43.344872][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.345044][ C1] _raw_spin_lock_bh+0x38/0x50 [ 43.345218][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 43.345464][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 43.345709][ C1] br_changelink+0x36c/0x1360 [bridge] [ 43.345917][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 43.346125][ C1] rtnl_newlink_create+0x341/0x850 [ 43.346297][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.346478][ C1] rtnl_newlink+0x63/0xa0 [ 43.346651][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.346824][ C1] netlink_rcv_skb+0x130/0x360 [ 43.346996][ C1] netlink_unicast+0x449/0x710 [ 43.347168][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.347342][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.347525][ C1] ___sys_sendmsg+0xee/0x170 [ 43.347704][ C1] __sys_sendmsg+0xcd/0x170 [ 43.347876][ C1] do_syscall_64+0xc6/0x1e0 [ 43.348050][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.348258][ C1] } [ 43.348328][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 43.348603][ C1] ... acquired at: [ 43.348706][ C1] mark_lock+0x28d/0x3e0 [ 43.348848][ C1] mark_usage+0xd9/0x2a0 [ 43.348985][ C1] __lock_acquire+0x797/0x1570 [ 43.349123][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.349261][ C1] _raw_spin_lock+0x30/0x40 [ 43.349398][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.349604][ C1] call_timer_fn+0x13b/0x230 [ 43.349740][ C1] __run_timers+0x545/0x810 [ 43.349878][ C1] timer_expire_remote+0x9b/0xe0 [ 43.350021][ C1] tmigr_handle_remote_cpu+0x270/0x430 [ 43.350160][ C1] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.350296][ C1] tmigr_handle_remote+0x21d/0x3a0 [ 43.350520][ C1] __do_softirq+0x1f8/0x5df [ 43.350657][ C1] irq_exit_rcu+0x97/0xc0 [ 43.350793][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.350965][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.351219][ C1] default_idle+0xf/0x20 [ 43.351356][ C1] default_idle_call+0x6d/0xb0 [ 43.351492][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.351630][ C1] do_idle+0xf9/0x160 [ 43.351814][ C1] cpu_startup_entry+0x54/0x60 [ 43.351951][ C1] start_secondary+0x21c/0x2b0 [ 43.352089][ C1] common_startup_64+0x12c/0x138 [ 43.352224][ C1] [ 43.352292][ C1] [ 43.352292][ C1] stack backtrace: [ 43.352540][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 43.352746][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.353127][ C1] Call Trace: [ 43.353231][ C1] [ 43.353305][ C1] dump_stack_lvl+0x82/0xd0 [ 43.353446][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.353616][ C1] ? common_startup_64+0x12c/0x138 [ 43.353848][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.354018][ C1] ? __pfx_usage_skip+0x10/0x10 [ 43.354155][ C1] ? __pfx_usage_match+0x10/0x10 [ 43.354291][ C1] ? arch_stack_walk+0x8c/0xf0 [ 43.354515][ C1] mark_lock_irq+0x4cd/0xa10 [ 43.354655][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.354791][ C1] ? stack_trace_save+0x94/0xd0 [ 43.354929][ C1] ? add_chain_cache+0x248/0x8b0 [ 43.355150][ C1] ? save_trace+0x8f/0x5b0 [ 43.355290][ C1] mark_lock+0x28d/0x3e0 [ 43.355394][ C1] mark_usage+0xd9/0x2a0 [ 43.355497][ C1] __lock_acquire+0x797/0x1570 [ 43.355638][ C1] ? __lock_acquire+0xaf0/0x1570 [ 43.355865][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.356104][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.356249][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.356460][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.356597][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 43.356734][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.356940][ C1] ? lock_acquire+0x32/0xc0 [ 43.357077][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.357451][ C1] _raw_spin_lock+0x30/0x40 [ 43.357590][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.357801][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.358089][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.358328][ C1] call_timer_fn+0x13b/0x230 [ 43.358463][ C1] ? call_timer_fn+0xe8/0x230 [ 43.358599][ C1] ? call_timer_fn+0xe8/0x230 [ 43.358819][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 43.358956][ C1] ? mark_lock+0x38/0x3e0 [ 43.359070][ C1] __run_timers+0x545/0x810 [ 43.359209][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.359530][ C1] ? __pfx___run_timers+0x10/0x10 [ 43.359667][ C1] ? __lock_release+0x103/0x460 [ 43.359805][ C1] ? do_raw_spin_lock+0x131/0x270 [ 43.359942][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.360163][ C1] ? lock_acquire+0x32/0xc0 [ 43.360299][ C1] ? timer_expire_remote+0x93/0xe0 [ 43.360442][ C1] timer_expire_remote+0x9b/0xe0 [ 43.360585][ C1] tmigr_handle_remote_cpu+0x270/0x430 [ 43.360801][ C1] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 43.360974][ C1] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.361113][ C1] tmigr_handle_remote+0x21d/0x3a0 [ 43.361249][ C1] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 43.361477][ C1] __do_softirq+0x1f8/0x5df [ 43.361615][ C1] irq_exit_rcu+0x97/0xc0 [ 43.361725][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.361861][ C1] [ 43.361933][ C1] [ 43.362003][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.362257][ C1] RIP: 0010:default_idle+0xf/0x20 [ 43.362403][ 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 [ 43.362979][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 43.363161][ C1] RAX: 0000000000094de7 RBX: 1ffff92000029fc1 RCX: ffffffffa830e9d5 [ 43.363375][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa5caa4a4 [ 43.363664][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 43.363870][ C1] R10: ffff8880360b84e3 R11: ffff8880360ad9b0 R12: 0000000000000000 [ 43.364077][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 43.364367][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 43.364503][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 43.364640][ C1] default_idle_call+0x6d/0xb0 [ 43.364858][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.364996][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 43.365133][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 43.365274][ C1] do_idle+0xf9/0x160 [ 43.365379][ C1] cpu_startup_entry+0x54/0x60 [ 43.365596][ C1] start_secondary+0x21c/0x2b0 [ 43.365732][ C1] ? __pfx_start_secondary+0x10/0x10 [ 43.365869][ C1] common_startup_64+0x12c/0x138 [ 43.366008][ C1] [ 43.366421][ C1] tc action pedit unable to extract header offset for header type (0x5) [ 60.726210][ C0] tc action pedit unable to extract header offset for header type (0x4) [ 63.862264][ T682] br1: port 2(veth2) entered disabled state [ 63.969888][ T683] veth2: left allmulticast mode [ 63.970230][ T683] veth2: left promiscuous mode [ 63.970640][ T683] br1: port 2(veth2) entered disabled state [ 64.076781][ T684] br1: port 1(veth1) entered disabled state [ 64.167000][ T685] veth1: left allmulticast mode [ 64.167165][ T685] veth1: left promiscuous mode [ 64.167428][ T685] br1: port 1(veth1) entered disabled state