[ 25.662962][ T260] ip (260) used greatest stack depth: 23600 bytes left [ 30.589919][ T304] br0: port 1(veth1) entered blocking state [ 30.590459][ T304] br0: port 1(veth1) entered disabled state [ 30.590966][ T304] veth1: entered allmulticast mode [ 30.593244][ T304] veth1: entered promiscuous mode [ 30.741852][ T306] br0: port 2(veth2) entered blocking state [ 30.742247][ T306] br0: port 2(veth2) entered disabled state [ 30.742653][ T306] veth2: entered allmulticast mode [ 30.745795][ T306] veth2: entered promiscuous mode [ 30.873173][ T307] br0: port 3(veth4) entered blocking state [ 30.873800][ T307] br0: port 3(veth4) entered disabled state [ 30.874063][ T307] veth4: entered allmulticast mode [ 30.876026][ T307] veth4: entered promiscuous mode [ 31.516340][ T51] br0: port 1(veth1) entered blocking state [ 31.516997][ T51] br0: port 1(veth1) entered forwarding state [ 31.634804][ T51] br0: port 2(veth2) entered blocking state [ 31.635069][ T51] br0: port 2(veth2) entered forwarding state [ 31.760034][ T62] br0: port 3(veth4) entered blocking state [ 31.760327][ T62] br0: port 3(veth4) entered forwarding state [ 46.896483][ C0] [ 46.896714][ C0] ======================================================== [ 46.896959][ C0] WARNING: possible irq lock inversion dependency detected [ 46.897190][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 46.897340][ C0] -------------------------------------------------------- [ 46.897561][ C0] swapper/0/0 just changed the state of lock: [ 46.897753][ C0] ffff888007542c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.898206][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 46.898493][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 46.898498][ C0] [ 46.898498][ C0] [ 46.898498][ C0] and interrupts could create inverse lock ordering between them. [ 46.898498][ C0] [ 46.899119][ C0] [ 46.899119][ C0] other info that might help us debug this: [ 46.899362][ C0] Chain exists of: [ 46.899362][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 46.899362][ C0] [ 46.899728][ C0] Possible interrupt unsafe locking scenario: [ 46.899728][ C0] [ 46.899962][ C0] CPU0 CPU1 [ 46.900112][ C0] ---- ---- [ 46.900262][ C0] lock(&p->alloc_lock); [ 46.900377][ C0] local_irq_disable(); [ 46.900600][ C0] lock(&br->lock); [ 46.900799][ C0] lock(lweventlist_lock); [ 46.900995][ C0] [ 46.901109][ C0] lock(&br->lock); [ 46.901223][ C0] [ 46.901223][ C0] *** DEADLOCK *** [ 46.901223][ C0] [ 46.901444][ C0] 1 lock held by swapper/0/0: [ 46.901597][ C0] #0: ffffc90000007b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 46.901908][ C0] [ 46.901908][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 46.902171][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 46.902332][ C0] HARDIRQ-ON-W at: [ 46.902448][ C0] __lock_acquire+0x797/0x1570 [ 46.902641][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.902831][ C0] _raw_spin_lock+0x30/0x40 [ 46.903024][ C0] set_mems_allowed+0x1d/0x210 [ 46.903212][ C0] kernel_init_freeable+0x72/0x310 [ 46.903406][ C0] kernel_init+0x20/0x200 [ 46.903600][ C0] ret_from_fork+0x31/0x70 [ 46.903789][ C0] ret_from_fork_asm+0x1a/0x30 [ 46.903975][ C0] SOFTIRQ-ON-W at: [ 46.904100][ C0] __lock_acquire+0x797/0x1570 [ 46.904292][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.904486][ C0] _raw_spin_lock+0x30/0x40 [ 46.904706][ C0] set_mems_allowed+0x1d/0x210 [ 46.904895][ C0] kernel_init_freeable+0x72/0x310 [ 46.905086][ C0] kernel_init+0x20/0x200 [ 46.905287][ C0] ret_from_fork+0x31/0x70 [ 46.905481][ C0] ret_from_fork_asm+0x1a/0x30 [ 46.905677][ C0] INITIAL USE at: [ 46.905790][ C0] __lock_acquire+0x797/0x1570 [ 46.905982][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.906175][ C0] _raw_spin_lock+0x30/0x40 [ 46.906370][ C0] set_mems_allowed+0x1d/0x210 [ 46.906559][ C0] kernel_init_freeable+0x72/0x310 [ 46.906760][ C0] kernel_init+0x20/0x200 [ 46.906958][ C0] ret_from_fork+0x31/0x70 [ 46.907146][ C0] ret_from_fork_asm+0x1a/0x30 [ 46.907336][ C0] } [ 46.907413][ C0] ... key at: [] __key.387+0x0/0x40 [ 46.907659][ C0] ... acquired at: [ 46.907775][ C0] __lock_acquire+0xaf0/0x1570 [ 46.907932][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.908087][ C0] _raw_spin_lock+0x30/0x40 [ 46.908242][ C0] __get_task_comm+0x27/0x70 [ 46.908404][ C0] ref_tracker_alloc+0x2ee/0x490 [ 46.908580][ C0] linkwatch_fire_event+0x196/0x200 [ 46.908739][ C0] veth_newlink+0x367/0x830 [veth] [ 46.908901][ C0] rtnl_newlink_create+0x341/0x850 [ 46.909053][ C0] __rtnl_newlink+0xac9/0xd80 [ 46.909217][ C0] rtnl_newlink+0x63/0xa0 [ 46.909370][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.909521][ C0] netlink_rcv_skb+0x130/0x360 [ 46.909676][ C0] netlink_unicast+0x449/0x710 [ 46.909831][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.909999][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 46.910152][ C0] ___sys_sendmsg+0xee/0x170 [ 46.910307][ C0] __sys_sendmsg+0xcd/0x170 [ 46.910457][ C0] do_syscall_64+0xc6/0x1e0 [ 46.910624][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.910819][ C0] [ 46.910897][ C0] -> (lweventlist_lock){....}-{2:2} { [ 46.911056][ C0] INITIAL USE at: [ 46.911170][ C0] __lock_acquire+0x797/0x1570 [ 46.911362][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.911559][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.911757][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 46.911946][ C0] rtnl_getlink+0x4c9/0x970 [ 46.912137][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.912326][ C0] netlink_rcv_skb+0x130/0x360 [ 46.912514][ C0] netlink_unicast+0x449/0x710 [ 46.912732][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.912934][ C0] __sys_sendto+0x37d/0x410 [ 46.913122][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.913312][ C0] do_syscall_64+0xc6/0x1e0 [ 46.913501][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.913756][ C0] } [ 46.913839][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 46.914067][ C0] ... acquired at: [ 46.914185][ C0] __lock_acquire+0xaf0/0x1570 [ 46.914341][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.914492][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.914652][ C0] linkwatch_fire_event+0x74/0x200 [ 46.914802][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 46.915031][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 46.915251][ C0] dev_set_mac_address+0x28a/0x410 [ 46.915411][ C0] dev_set_mac_address_user+0x31/0x50 [ 46.915564][ C0] do_setlink+0x17b4/0x21e0 [ 46.915718][ C0] rtnl_setlink+0x1f7/0x310 [ 46.915878][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.916029][ C0] netlink_rcv_skb+0x130/0x360 [ 46.916178][ C0] netlink_unicast+0x449/0x710 [ 46.916330][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.916481][ C0] __sys_sendto+0x37d/0x410 [ 46.916663][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.916822][ C0] do_syscall_64+0xc6/0x1e0 [ 46.916974][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.917163][ C0] [ 46.917240][ C0] -> (&br->lock){+.-.}-{2:2} { [ 46.917398][ C0] HARDIRQ-ON-W at: [ 46.917511][ C0] __lock_acquire+0x797/0x1570 [ 46.917704][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.917892][ C0] _raw_spin_lock_bh+0x38/0x50 [ 46.918086][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 46.918347][ C0] dev_set_mac_address+0x28a/0x410 [ 46.918537][ C0] dev_set_mac_address_user+0x31/0x50 [ 46.918736][ C0] do_setlink+0x17b4/0x21e0 [ 46.918925][ C0] rtnl_setlink+0x1f7/0x310 [ 46.919124][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.919318][ C0] netlink_rcv_skb+0x130/0x360 [ 46.919514][ C0] netlink_unicast+0x449/0x710 [ 46.919707][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.919898][ C0] __sys_sendto+0x37d/0x410 [ 46.920089][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.920291][ C0] do_syscall_64+0xc6/0x1e0 [ 46.920482][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.920753][ C0] IN-SOFTIRQ-W at: [ 46.920869][ C0] __lock_acquire+0x797/0x1570 [ 46.921061][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.921249][ C0] _raw_spin_lock+0x30/0x40 [ 46.921438][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.921716][ C0] call_timer_fn+0x13b/0x230 [ 46.921915][ C0] __run_timers+0x545/0x810 [ 46.922106][ C0] timer_expire_remote+0x9b/0xe0 [ 46.922294][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 46.922486][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 46.922673][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 46.922859][ C0] __do_softirq+0x1f8/0x5df [ 46.923063][ C0] irq_exit_rcu+0x97/0xc0 [ 46.923289][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.923541][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.923788][ C0] default_idle+0xf/0x20 [ 46.923992][ C0] default_idle_call+0x6d/0xb0 [ 46.924195][ C0] cpuidle_idle_call+0x1f4/0x280 [ 46.924419][ C0] do_idle+0xf9/0x160 [ 46.924599][ C0] cpu_startup_entry+0x54/0x60 [ 46.924789][ C0] rest_init+0x14f/0x260 [ 46.924992][ C0] start_kernel+0x318/0x3d0 [ 46.925186][ C0] x86_64_start_reservations+0x18/0x30 [ 46.925378][ C0] x86_64_start_kernel+0xba/0x110 [ 46.925568][ C0] common_startup_64+0x12c/0x138 [ 46.925764][ C0] INITIAL USE at: [ 46.925974][ C0] __lock_acquire+0x797/0x1570 [ 46.926166][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.926355][ C0] _raw_spin_lock_bh+0x38/0x50 [ 46.926641][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 46.926902][ C0] dev_set_mac_address+0x28a/0x410 [ 46.927097][ C0] dev_set_mac_address_user+0x31/0x50 [ 46.927317][ C0] do_setlink+0x17b4/0x21e0 [ 46.927613][ C0] rtnl_setlink+0x1f7/0x310 [ 46.927813][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.928015][ C0] netlink_rcv_skb+0x130/0x360 [ 46.928311][ C0] netlink_unicast+0x449/0x710 [ 46.928580][ C0] netlink_sendmsg+0x723/0xbe0 [ 46.928912][ C0] __sys_sendto+0x37d/0x410 [ 46.929436][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 46.929771][ C0] do_syscall_64+0xc6/0x1e0 [ 46.930099][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.930495][ C0] } [ 46.930652][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 46.931186][ C0] ... acquired at: [ 46.931385][ C0] mark_lock+0x28d/0x3e0 [ 46.931651][ C0] mark_usage+0xd9/0x2a0 [ 46.932010][ C0] __lock_acquire+0x797/0x1570 [ 46.932173][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.932336][ C0] _raw_spin_lock+0x30/0x40 [ 46.932497][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.932829][ C0] call_timer_fn+0x13b/0x230 [ 46.932991][ C0] __run_timers+0x545/0x810 [ 46.933160][ C0] timer_expire_remote+0x9b/0xe0 [ 46.933324][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 46.933676][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 46.933839][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 46.934000][ C0] __do_softirq+0x1f8/0x5df [ 46.934162][ C0] irq_exit_rcu+0x97/0xc0 [ 46.934419][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.934637][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.934838][ C0] default_idle+0xf/0x20 [ 46.934998][ C0] default_idle_call+0x6d/0xb0 [ 46.935257][ C0] cpuidle_idle_call+0x1f4/0x280 [ 46.935421][ C0] do_idle+0xf9/0x160 [ 46.935543][ C0] cpu_startup_entry+0x54/0x60 [ 46.935707][ C0] rest_init+0x14f/0x260 [ 46.935868][ C0] start_kernel+0x318/0x3d0 [ 46.936125][ C0] x86_64_start_reservations+0x18/0x30 [ 46.936294][ C0] x86_64_start_kernel+0xba/0x110 [ 46.936456][ C0] common_startup_64+0x12c/0x138 [ 46.936629][ C0] [ 46.936813][ C0] [ 46.936813][ C0] stack backtrace: [ 46.937023][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 46.937266][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 46.937729][ C0] Call Trace: [ 46.937862][ C0] [ 46.937951][ C0] dump_stack_lvl+0x82/0xd0 [ 46.938116][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 46.938415][ C0] ? common_startup_64+0x12c/0x138 [ 46.938588][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 46.938792][ C0] ? __pfx_usage_skip+0x10/0x10 [ 46.938954][ C0] ? __pfx_usage_match+0x10/0x10 [ 46.939121][ C0] ? arch_stack_walk+0x8c/0xf0 [ 46.939287][ C0] mark_lock_irq+0x4cd/0xa10 [ 46.939448][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 46.939612][ C0] ? stack_trace_save+0x94/0xd0 [ 46.939775][ C0] ? add_chain_cache+0x248/0x8b0 [ 46.940062][ C0] ? save_trace+0x8f/0x5b0 [ 46.940228][ C0] mark_lock+0x28d/0x3e0 [ 46.940353][ C0] mark_usage+0xd9/0x2a0 [ 46.940476][ C0] __lock_acquire+0x797/0x1570 [ 46.940755][ C0] ? __lock_acquire+0xaf0/0x1570 [ 46.940930][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.941209][ C0] lock_acquire.part.0+0xeb/0x330 [ 46.941372][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.941711][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 46.941874][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 46.942035][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.942279][ C0] ? lock_acquire+0x32/0xc0 [ 46.942535][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.942777][ C0] _raw_spin_lock+0x30/0x40 [ 46.942940][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.943174][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.943524][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.943801][ C0] call_timer_fn+0x13b/0x230 [ 46.943969][ C0] ? call_timer_fn+0xe8/0x230 [ 46.944130][ C0] ? call_timer_fn+0xe8/0x230 [ 46.944293][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 46.944456][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 46.944621][ C0] __run_timers+0x545/0x810 [ 46.944784][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.945061][ C0] ? __pfx___run_timers+0x10/0x10 [ 46.945223][ C0] ? __lock_release+0x103/0x460 [ 46.945394][ C0] ? do_raw_spin_lock+0x131/0x270 [ 46.945658][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 46.945821][ C0] ? lock_acquire+0x32/0xc0 [ 46.945989][ C0] ? timer_expire_remote+0x93/0xe0 [ 46.946153][ C0] timer_expire_remote+0x9b/0xe0 [ 46.946423][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 46.946586][ C0] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 46.946791][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 46.946960][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 46.947122][ C0] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 46.947285][ C0] __do_softirq+0x1f8/0x5df [ 46.947451][ C0] irq_exit_rcu+0x97/0xc0 [ 46.947574][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.947736][ C0] [ 46.947919][ C0] [ 46.948000][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.948204][ C0] RIP: 0010:default_idle+0xf/0x20 [ 46.948369][ 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 93 20 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 [ 46.949036][ C0] RSP: 0018:ffffffff9f407e00 EFLAGS: 00000242 [ 46.949240][ C0] RAX: 00000000000a0557 RBX: 1ffffffff3e80fc2 RCX: ffffffff9e50f9e5 [ 46.949585][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9beaa4a4 [ 46.949823][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 46.950061][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 46.950394][ C0] R13: ffffffff9f41d000 R14: dffffc0000000000 R15: 0000000000014770 [ 46.950655][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 46.950820][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 46.951075][ C0] default_idle_call+0x6d/0xb0 [ 46.951236][ C0] cpuidle_idle_call+0x1f4/0x280 [ 46.951395][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 46.951556][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 46.951721][ C0] do_idle+0xf9/0x160 [ 46.951936][ C0] cpu_startup_entry+0x54/0x60 [ 46.952100][ C0] rest_init+0x14f/0x260 [ 46.952223][ C0] start_kernel+0x318/0x3d0 [ 46.952389][ C0] x86_64_start_reservations+0x18/0x30 [ 46.952643][ C0] x86_64_start_kernel+0xba/0x110 [ 46.952803][ C0] common_startup_64+0x12c/0x138 [ 46.952967][ C0] [ 47.874035][ T352] veth3: entered promiscuous mode [ 48.344066][ T358] GACT probability NOT on [ 50.078507][ T365] veth3: left promiscuous mode [ 50.184569][ T366] veth3: entered promiscuous mode [ 51.995713][ T375] veth3: left promiscuous mode [ 52.099402][ T377] br0: port 3(veth4) entered disabled state [ 52.204541][ T378] br0: port 2(veth2) entered disabled state [ 52.307350][ T379] br0: port 1(veth1) entered disabled state [ 52.403701][ T380] veth4: left allmulticast mode [ 52.403889][ T380] veth4: left promiscuous mode [ 52.404143][ T380] br0: port 3(veth4) entered disabled state [ 52.405847][ T380] veth2: left allmulticast mode [ 52.406023][ T380] veth2: left promiscuous mode [ 52.406292][ T380] br0: port 2(veth2) entered disabled state [ 52.407182][ T380] veth1: left allmulticast mode [ 52.407347][ T380] veth1: left promiscuous mode [ 52.407582][ T380] br0: port 1(veth1) entered disabled state