[ 26.060401][ T262] ip (262) used greatest stack depth: 23200 bytes left [ 30.920010][ T305] br0: port 1(veth1) entered blocking state [ 30.920520][ T305] br0: port 1(veth1) entered disabled state [ 30.921190][ T305] veth1: entered allmulticast mode [ 30.924021][ T305] veth1: entered promiscuous mode [ 31.045371][ T307] br0: port 2(veth2) entered blocking state [ 31.045666][ T307] br0: port 2(veth2) entered disabled state [ 31.045947][ T307] veth2: entered allmulticast mode [ 31.047981][ T307] veth2: entered promiscuous mode [ 31.170370][ T308] br0: port 3(veth4) entered blocking state [ 31.170675][ T308] br0: port 3(veth4) entered disabled state [ 31.170930][ T308] veth4: entered allmulticast mode [ 31.172879][ T308] veth4: entered promiscuous mode [ 31.758170][ T7] br0: port 1(veth1) entered blocking state [ 31.758591][ T7] br0: port 1(veth1) entered forwarding state [ 31.872126][ T50] br0: port 2(veth2) entered blocking state [ 31.872396][ T50] br0: port 2(veth2) entered forwarding state [ 31.991091][ T50] br0: port 3(veth4) entered blocking state [ 31.991336][ T50] br0: port 3(veth4) entered forwarding state [ 46.895483][ C0] [ 46.895606][ C0] ======================================================== [ 46.895850][ C0] WARNING: possible irq lock inversion dependency detected [ 46.896094][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 46.896240][ C0] -------------------------------------------------------- [ 46.896481][ C0] swapper/0/0 just changed the state of lock: [ 46.896686][ C0] ffff888007eb2c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.897152][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 46.897425][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 46.897430][ C0] [ 46.897430][ C0] [ 46.897430][ C0] and interrupts could create inverse lock ordering between them. [ 46.897430][ C0] [ 46.898004][ C0] [ 46.898004][ C0] other info that might help us debug this: [ 46.898226][ C0] Chain exists of: [ 46.898226][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 46.898226][ C0] [ 46.898575][ C0] Possible interrupt unsafe locking scenario: [ 46.898575][ C0] [ 46.898813][ C0] CPU0 CPU1 [ 46.898970][ C0] ---- ---- [ 46.899148][ C0] lock(&p->alloc_lock); [ 46.899266][ C0] local_irq_disable(); [ 46.899458][ C0] lock(&br->lock); [ 46.899655][ C0] lock(lweventlist_lock); [ 46.899837][ C0] [ 46.899954][ C0] lock(&br->lock); [ 46.900080][ C0] [ 46.900080][ C0] *** DEADLOCK *** [ 46.900080][ C0] [ 46.900311][ C0] 1 lock held by swapper/0/0: [ 46.900463][ C0] #0: ffffc90000007d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 46.900787][ C0] [ 46.900787][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 46.901058][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 46.901217][ C0] HARDIRQ-ON-W at: [ 46.901345][ C0] __lock_acquire+0x797/0x1570 [ 46.901545][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.901759][ C0] _raw_spin_lock+0x30/0x40 [ 46.901988][ C0] set_mems_allowed+0x1d/0x210 [ 46.902191][ C0] kernel_init_freeable+0x72/0x310 [ 46.902377][ C0] kernel_init+0x20/0x200 [ 46.902578][ C0] ret_from_fork+0x31/0x70 [ 46.902782][ C0] ret_from_fork_asm+0x1a/0x30 [ 46.902976][ C0] SOFTIRQ-ON-W at: [ 46.903095][ C0] __lock_acquire+0x797/0x1570 [ 46.903301][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.903491][ C0] _raw_spin_lock+0x30/0x40 [ 46.903685][ C0] set_mems_allowed+0x1d/0x210 [ 46.903894][ C0] kernel_init_freeable+0x72/0x310 [ 46.904101][ C0] kernel_init+0x20/0x200 [ 46.904312][ C0] ret_from_fork+0x31/0x70 [ 46.904517][ C0] ret_from_fork_asm+0x1a/0x30 [ 46.904726][ C0] INITIAL USE at: [ 46.904841][ C0] __lock_acquire+0x797/0x1570 [ 46.905062][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.905272][ C0] _raw_spin_lock+0x30/0x40 [ 46.905460][ C0] set_mems_allowed+0x1d/0x210 [ 46.905660][ C0] kernel_init_freeable+0x72/0x310 [ 46.905850][ C0] kernel_init+0x20/0x200 [ 46.906054][ C0] ret_from_fork+0x31/0x70 [ 46.906237][ C0] ret_from_fork_asm+0x1a/0x30 [ 46.906473][ C0] } [ 46.906551][ C0] ... key at: [] __key.387+0x0/0x40 [ 46.906787][ C0] ... acquired at: [ 46.906901][ C0] __lock_acquire+0xaf0/0x1570 [ 46.907068][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.907217][ C0] _raw_spin_lock+0x30/0x40 [ 46.907377][ C0] __get_task_comm+0x27/0x70 [ 46.907525][ C0] ref_tracker_alloc+0x2ee/0x490 [ 46.907683][ C0] linkwatch_fire_event+0x196/0x200 [ 46.907834][ C0] veth_newlink+0x367/0x830 [veth] [ 46.908014][ C0] rtnl_newlink_create+0x341/0x850 [ 46.908167][ C0] __rtnl_newlink+0xac9/0xd80 [ 46.908356][ C0] rtnl_newlink+0x63/0xa0 [ 46.908504][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.908665][ C0] netlink_rcv_skb+0x130/0x360 [ 46.908831][ C0] netlink_unicast+0x449/0x710 [ 46.908993][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.909167][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 46.909315][ C0] ___sys_sendmsg+0xee/0x170 [ 46.909477][ C0] __sys_sendmsg+0xcd/0x170 [ 46.909629][ C0] do_syscall_64+0xc6/0x1e0 [ 46.909791][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.910024][ C0] [ 46.910144][ C0] -> (lweventlist_lock){....}-{2:2} { [ 46.910348][ C0] INITIAL USE at: [ 46.910469][ C0] __lock_acquire+0x797/0x1570 [ 46.910733][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.910972][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.911164][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 46.911360][ C0] rtnl_getlink+0x4c9/0x970 [ 46.911546][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.911737][ C0] netlink_rcv_skb+0x130/0x360 [ 46.911938][ C0] netlink_unicast+0x449/0x710 [ 46.912138][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.912346][ C0] __sys_sendto+0x37d/0x410 [ 46.912550][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.912785][ C0] do_syscall_64+0xc6/0x1e0 [ 46.913007][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.913249][ C0] } [ 46.913344][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 46.913569][ C0] ... acquired at: [ 46.913691][ C0] __lock_acquire+0xaf0/0x1570 [ 46.913870][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.914028][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.914192][ C0] linkwatch_fire_event+0x74/0x200 [ 46.914339][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 46.914581][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 46.914804][ C0] dev_set_mac_address+0x28a/0x410 [ 46.914976][ C0] dev_set_mac_address_user+0x31/0x50 [ 46.915125][ C0] do_setlink+0x17b4/0x21e0 [ 46.915285][ C0] rtnl_setlink+0x1f7/0x310 [ 46.915444][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.915602][ C0] netlink_rcv_skb+0x130/0x360 [ 46.915752][ C0] netlink_unicast+0x449/0x710 [ 46.915898][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.916083][ C0] __sys_sendto+0x37d/0x410 [ 46.916244][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.916418][ C0] do_syscall_64+0xc6/0x1e0 [ 46.916579][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.916791][ C0] [ 46.916871][ C0] -> (&br->lock){+.-.}-{2:2} { [ 46.917056][ C0] HARDIRQ-ON-W at: [ 46.917187][ C0] __lock_acquire+0x797/0x1570 [ 46.917385][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.917603][ C0] _raw_spin_lock_bh+0x38/0x50 [ 46.917815][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 46.918103][ C0] dev_set_mac_address+0x28a/0x410 [ 46.918297][ C0] dev_set_mac_address_user+0x31/0x50 [ 46.918498][ C0] do_setlink+0x17b4/0x21e0 [ 46.918700][ C0] rtnl_setlink+0x1f7/0x310 [ 46.918908][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.919199][ C0] netlink_rcv_skb+0x130/0x360 [ 46.919544][ C0] netlink_unicast+0x449/0x710 [ 46.919788][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.920013][ C0] __sys_sendto+0x37d/0x410 [ 46.920215][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.920427][ C0] do_syscall_64+0xc6/0x1e0 [ 46.920646][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.920888][ C0] IN-SOFTIRQ-W at: [ 46.921013][ C0] __lock_acquire+0x797/0x1570 [ 46.921214][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.921429][ C0] _raw_spin_lock+0x30/0x40 [ 46.921630][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.922139][ C0] call_timer_fn+0x13b/0x230 [ 46.922344][ C0] __run_timers+0x545/0x810 [ 46.922558][ C0] run_timer_softirq+0xe8/0x1b0 [ 46.922888][ C0] __do_softirq+0x1f8/0x5df [ 46.923165][ C0] irq_exit_rcu+0x97/0xc0 [ 46.923368][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.923713][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.923981][ C0] default_idle+0xf/0x20 [ 46.924204][ C0] default_idle_call+0x6d/0xb0 [ 46.924524][ C0] cpuidle_idle_call+0x1f4/0x280 [ 46.924728][ C0] do_idle+0xf9/0x160 [ 46.924901][ C0] cpu_startup_entry+0x54/0x60 [ 46.925135][ C0] rest_init+0x14f/0x260 [ 46.925340][ C0] start_kernel+0x318/0x3d0 [ 46.925556][ C0] x86_64_start_reservations+0x18/0x30 [ 46.925771][ C0] x86_64_start_kernel+0xba/0x110 [ 46.925978][ C0] common_startup_64+0x12c/0x138 [ 46.926195][ C0] INITIAL USE at: [ 46.926318][ C0] __lock_acquire+0x797/0x1570 [ 46.926534][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.926847][ C0] _raw_spin_lock_bh+0x38/0x50 [ 46.927074][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 46.927401][ C0] dev_set_mac_address+0x28a/0x410 [ 46.927715][ C0] dev_set_mac_address_user+0x31/0x50 [ 46.927930][ C0] do_setlink+0x17b4/0x21e0 [ 46.928174][ C0] rtnl_setlink+0x1f7/0x310 [ 46.928394][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.928718][ C0] netlink_rcv_skb+0x130/0x360 [ 46.928947][ C0] netlink_unicast+0x449/0x710 [ 46.929255][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.929610][ C0] __sys_sendto+0x37d/0x410 [ 46.929813][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.930042][ C0] do_syscall_64+0xc6/0x1e0 [ 46.930253][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.930609][ C0] } [ 46.930728][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 46.931052][ C0] ... acquired at: [ 46.931162][ C0] mark_lock+0x28d/0x3e0 [ 46.931310][ C0] mark_usage+0xd9/0x2a0 [ 46.931480][ C0] __lock_acquire+0x797/0x1570 [ 46.931637][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.931809][ C0] _raw_spin_lock+0x30/0x40 [ 46.932051][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.932299][ C0] call_timer_fn+0x13b/0x230 [ 46.932469][ C0] __run_timers+0x545/0x810 [ 46.932627][ C0] run_timer_softirq+0xe8/0x1b0 [ 46.932887][ C0] __do_softirq+0x1f8/0x5df [ 46.933076][ C0] irq_exit_rcu+0x97/0xc0 [ 46.933229][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.933412][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.933700][ C0] default_idle+0xf/0x20 [ 46.933863][ C0] default_idle_call+0x6d/0xb0 [ 46.934022][ C0] cpuidle_idle_call+0x1f4/0x280 [ 46.934179][ C0] do_idle+0xf9/0x160 [ 46.934394][ C0] cpu_startup_entry+0x54/0x60 [ 46.934553][ C0] rest_init+0x14f/0x260 [ 46.934700][ C0] start_kernel+0x318/0x3d0 [ 46.934858][ C0] x86_64_start_reservations+0x18/0x30 [ 46.935204][ C0] x86_64_start_kernel+0xba/0x110 [ 46.935363][ C0] common_startup_64+0x12c/0x138 [ 46.935509][ C0] [ 46.935595][ C0] [ 46.935595][ C0] stack backtrace: [ 46.935780][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 46.936121][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 46.936461][ C0] Call Trace: [ 46.936679][ C0] [ 46.936755][ C0] dump_stack_lvl+0x82/0xd0 [ 46.936921][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 46.937177][ C0] ? common_startup_64+0x12c/0x138 [ 46.937326][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 46.937617][ C0] ? __pfx_usage_skip+0x10/0x10 [ 46.937782][ C0] ? __pfx_usage_match+0x10/0x10 [ 46.937929][ C0] ? arch_stack_walk+0x8c/0xf0 [ 46.938095][ C0] mark_lock_irq+0x4cd/0xa10 [ 46.938243][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 46.938412][ C0] ? stack_trace_save+0x94/0xd0 [ 46.938576][ C0] ? save_trace+0x8f/0x5b0 [ 46.938775][ C0] mark_lock+0x28d/0x3e0 [ 46.938888][ C0] mark_usage+0xd9/0x2a0 [ 46.939008][ C0] __lock_acquire+0x797/0x1570 [ 46.939194][ C0] ? __lock_acquire+0xaf0/0x1570 [ 46.939343][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.939710][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.939888][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.940139][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 46.940310][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 46.940590][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.940813][ C0] ? lock_acquire+0x32/0xc0 [ 46.940999][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.941302][ C0] _raw_spin_lock+0x30/0x40 [ 46.941555][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.941774][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.942010][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.942285][ C0] call_timer_fn+0x13b/0x230 [ 46.942431][ C0] ? call_timer_fn+0xe8/0x230 [ 46.942586][ C0] ? call_timer_fn+0xe8/0x230 [ 46.942757][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 46.942907][ C0] ? mark_lock+0x38/0x3e0 [ 46.943033][ C0] __run_timers+0x545/0x810 [ 46.943199][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.943455][ C0] ? __pfx___run_timers+0x10/0x10 [ 46.943621][ C0] ? do_raw_spin_lock+0x131/0x270 [ 46.943860][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 46.944015][ C0] ? lock_acquire+0x32/0xc0 [ 46.944182][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 46.944330][ C0] run_timer_softirq+0xe8/0x1b0 [ 46.944593][ C0] __do_softirq+0x1f8/0x5df [ 46.944744][ C0] irq_exit_rcu+0x97/0xc0 [ 46.944855][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.945009][ C0] [ 46.945102][ C0] [ 46.945183][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.945364][ C0] RIP: 0010:default_idle+0xf/0x20 [ 46.945517][ 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 [ 46.946075][ C0] RSP: 0018:ffffffff87207e00 EFLAGS: 00000242 [ 46.946260][ C0] RAX: 00000000000b5407 RBX: 1ffffffff0e40fc2 RCX: ffffffff8630e9d5 [ 46.946580][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83caa4a4 [ 46.946805][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005f0709c [ 46.947036][ C0] R10: ffff88802f8384e3 R11: ffff88802f83dc80 R12: 0000000000000000 [ 46.947477][ C0] R13: ffffffff8721d000 R14: dffffc0000000000 R15: 0000000000014770 [ 46.947716][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 46.947882][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 46.948066][ C0] default_idle_call+0x6d/0xb0 [ 46.948223][ C0] cpuidle_idle_call+0x1f4/0x280 [ 46.948385][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 46.948557][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 46.948705][ C0] do_idle+0xf9/0x160 [ 46.948847][ C0] cpu_startup_entry+0x54/0x60 [ 46.949010][ C0] rest_init+0x14f/0x260 [ 46.949123][ C0] start_kernel+0x318/0x3d0 [ 46.949291][ C0] x86_64_start_reservations+0x18/0x30 [ 46.949439][ C0] x86_64_start_kernel+0xba/0x110 [ 46.949681][ C0] common_startup_64+0x12c/0x138 [ 46.949846][ C0] [ 48.082552][ T353] veth3: entered promiscuous mode [ 48.589583][ T359] GACT probability NOT on [ 50.348036][ T366] veth3: left promiscuous mode [ 50.447325][ T367] veth3: entered promiscuous mode [ 52.327204][ T376] veth3: left promiscuous mode [ 52.436504][ T378] br0: port 3(veth4) entered disabled state [ 52.545845][ T379] br0: port 2(veth2) entered disabled state [ 52.646363][ T380] br0: port 1(veth1) entered disabled state [ 52.749031][ T381] veth4: left allmulticast mode [ 52.749217][ T381] veth4: left promiscuous mode [ 52.749492][ T381] br0: port 3(veth4) entered disabled state [ 52.755513][ T381] veth2: left allmulticast mode [ 52.755680][ T381] veth2: left promiscuous mode [ 52.755924][ T381] br0: port 2(veth2) entered disabled state [ 52.756827][ T381] veth1: left allmulticast mode [ 52.756968][ T381] veth1: left promiscuous mode [ 52.757219][ T381] br0: port 1(veth1) entered disabled state