[ 30.807219][ T305] br0: port 1(veth1) entered blocking state [ 30.807673][ T305] br0: port 1(veth1) entered disabled state [ 30.808079][ T305] veth1: entered allmulticast mode [ 30.810191][ T305] veth1: entered promiscuous mode [ 30.950169][ T307] br0: port 2(veth2) entered blocking state [ 30.950469][ T307] br0: port 2(veth2) entered disabled state [ 30.951075][ T307] veth2: entered allmulticast mode [ 30.953423][ T307] veth2: entered promiscuous mode [ 31.068702][ T308] br0: port 3(veth4) entered blocking state [ 31.068969][ T308] br0: port 3(veth4) entered disabled state [ 31.069247][ T308] veth4: entered allmulticast mode [ 31.072224][ T308] veth4: entered promiscuous mode [ 31.714691][ T51] br0: port 1(veth1) entered blocking state [ 31.715042][ T51] br0: port 1(veth1) entered forwarding state [ 31.836018][ T49] br0: port 2(veth2) entered blocking state [ 31.836619][ T49] br0: port 2(veth2) entered forwarding state [ 31.965088][ T50] br0: port 3(veth4) entered blocking state [ 31.965369][ T50] br0: port 3(veth4) entered forwarding state [ 46.893592][ C2] [ 46.893716][ C2] ======================================================== [ 46.893946][ C2] WARNING: possible irq lock inversion dependency detected [ 46.894148][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 46.894298][ C2] -------------------------------------------------------- [ 46.894520][ C2] swapper/2/0 just changed the state of lock: [ 46.894705][ C2] ffff88800238ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.895084][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 46.895302][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 46.895306][ C2] [ 46.895306][ C2] [ 46.895306][ C2] and interrupts could create inverse lock ordering between them. [ 46.895306][ C2] [ 46.895812][ C2] [ 46.895812][ C2] other info that might help us debug this: [ 46.896008][ C2] Chain exists of: [ 46.896008][ C2] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 46.896008][ C2] [ 46.896314][ C2] Possible interrupt unsafe locking scenario: [ 46.896314][ C2] [ 46.896535][ C2] CPU0 CPU1 [ 46.896668][ C2] ---- ---- [ 46.896799][ C2] lock(&p->alloc_lock); [ 46.896904][ C2] local_irq_disable(); [ 46.897069][ C2] lock(&br->lock); [ 46.897242][ C2] lock(lweventlist_lock); [ 46.897410][ C2] [ 46.897523][ C2] lock(&br->lock); [ 46.897633][ C2] [ 46.897633][ C2] *** DEADLOCK *** [ 46.897633][ C2] [ 46.897827][ C2] 1 lock held by swapper/2/0: [ 46.897958][ C2] #0: ffffc90000230d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 46.898237][ C2] [ 46.898237][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 46.898472][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 46.898610][ C2] HARDIRQ-ON-W at: [ 46.898713][ C2] __lock_acquire+0x797/0x1570 [ 46.898887][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.899070][ C2] _raw_spin_lock+0x30/0x40 [ 46.899244][ C2] set_mems_allowed+0x1d/0x210 [ 46.899416][ C2] kernel_init_freeable+0x72/0x310 [ 46.899599][ C2] kernel_init+0x20/0x200 [ 46.899770][ C2] ret_from_fork+0x31/0x70 [ 46.899941][ C2] ret_from_fork_asm+0x1a/0x30 [ 46.900113][ C2] SOFTIRQ-ON-W at: [ 46.900214][ C2] __lock_acquire+0x797/0x1570 [ 46.900380][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.900553][ C2] _raw_spin_lock+0x30/0x40 [ 46.900722][ C2] set_mems_allowed+0x1d/0x210 [ 46.900894][ C2] kernel_init_freeable+0x72/0x310 [ 46.901060][ C2] kernel_init+0x20/0x200 [ 46.901235][ C2] ret_from_fork+0x31/0x70 [ 46.901423][ C2] ret_from_fork_asm+0x1a/0x30 [ 46.901593][ C2] INITIAL USE at: [ 46.901695][ C2] __lock_acquire+0x797/0x1570 [ 46.901885][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.902058][ C2] _raw_spin_lock+0x30/0x40 [ 46.902248][ C2] set_mems_allowed+0x1d/0x210 [ 46.902450][ C2] kernel_init_freeable+0x72/0x310 [ 46.902652][ C2] kernel_init+0x20/0x200 [ 46.902835][ C2] ret_from_fork+0x31/0x70 [ 46.903016][ C2] ret_from_fork_asm+0x1a/0x30 [ 46.903201][ C2] } [ 46.903279][ C2] ... key at: [] __key.387+0x0/0x40 [ 46.903506][ C2] ... acquired at: [ 46.903618][ C2] __lock_acquire+0xaf0/0x1570 [ 46.903808][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.903955][ C2] _raw_spin_lock+0x30/0x40 [ 46.904103][ C2] __get_task_comm+0x27/0x70 [ 46.904292][ C2] ref_tracker_alloc+0x2ee/0x490 [ 46.904446][ C2] linkwatch_fire_event+0x196/0x200 [ 46.904616][ C2] veth_newlink+0x367/0x830 [veth] [ 46.904773][ C2] rtnl_newlink_create+0x341/0x850 [ 46.904943][ C2] __rtnl_newlink+0xac9/0xd80 [ 46.905097][ C2] rtnl_newlink+0x63/0xa0 [ 46.905250][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.905417][ C2] netlink_rcv_skb+0x130/0x360 [ 46.905573][ C2] netlink_unicast+0x449/0x710 [ 46.905739][ C2] netlink_sendmsg+0x723/0xbe0 [ 46.905915][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 46.906062][ C2] ___sys_sendmsg+0xee/0x170 [ 46.906217][ C2] __sys_sendmsg+0xcd/0x170 [ 46.906371][ C2] do_syscall_64+0xc6/0x1e0 [ 46.906538][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.906720][ C2] [ 46.906804][ C2] -> (lweventlist_lock){....}-{2:2} { [ 46.906960][ C2] INITIAL USE at: [ 46.907068][ C2] __lock_acquire+0x797/0x1570 [ 46.907281][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.907464][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.907675][ C2] linkwatch_sync_dev+0x29/0x1f0 [ 46.907859][ C2] rtnl_getlink+0x4c9/0x970 [ 46.908064][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.908246][ C2] netlink_rcv_skb+0x130/0x360 [ 46.908442][ C2] netlink_unicast+0x449/0x710 [ 46.908644][ C2] netlink_sendmsg+0x723/0xbe0 [ 46.908844][ C2] __sys_sendto+0x37d/0x410 [ 46.909038][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 46.909246][ C2] do_syscall_64+0xc6/0x1e0 [ 46.909430][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.909674][ C2] } [ 46.909747][ C2] ... key at: [] lweventlist_lock+0x18/0x60 [ 46.909989][ C2] ... acquired at: [ 46.910098][ C2] __lock_acquire+0xaf0/0x1570 [ 46.910253][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.910412][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.910677][ C2] linkwatch_fire_event+0x74/0x200 [ 46.910823][ C2] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 46.911051][ C2] br_set_mac_address+0x1f3/0x260 [bridge] [ 46.911288][ C2] dev_set_mac_address+0x28a/0x410 [ 46.911550][ C2] dev_set_mac_address_user+0x31/0x50 [ 46.911697][ C2] do_setlink+0x17b4/0x21e0 [ 46.911850][ C2] rtnl_setlink+0x1f7/0x310 [ 46.911999][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.912161][ C2] netlink_rcv_skb+0x130/0x360 [ 46.912323][ C2] netlink_unicast+0x449/0x710 [ 46.912471][ C2] netlink_sendmsg+0x723/0xbe0 [ 46.912627][ C2] __sys_sendto+0x37d/0x410 [ 46.912800][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 46.913120][ C2] do_syscall_64+0xc6/0x1e0 [ 46.913283][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.913483][ C2] [ 46.913556][ C2] -> (&br->lock){+.-.}-{2:2} { [ 46.913831][ C2] HARDIRQ-ON-W at: [ 46.913941][ C2] __lock_acquire+0x797/0x1570 [ 46.914135][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.914339][ C2] _raw_spin_lock_bh+0x38/0x50 [ 46.914617][ C2] br_set_mac_address+0xd2/0x260 [bridge] [ 46.914899][ C2] dev_set_mac_address+0x28a/0x410 [ 46.915093][ C2] dev_set_mac_address_user+0x31/0x50 [ 46.915289][ C2] do_setlink+0x17b4/0x21e0 [ 46.915469][ C2] rtnl_setlink+0x1f7/0x310 [ 46.915667][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.915862][ C2] netlink_rcv_skb+0x130/0x360 [ 46.916135][ C2] netlink_unicast+0x449/0x710 [ 46.916319][ C2] netlink_sendmsg+0x723/0xbe0 [ 46.916526][ C2] __sys_sendto+0x37d/0x410 [ 46.916787][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 46.916988][ C2] do_syscall_64+0xc6/0x1e0 [ 46.917176][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.917489][ C2] IN-SOFTIRQ-W at: [ 46.917600][ C2] __lock_acquire+0x797/0x1570 [ 46.917800][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.917979][ C2] _raw_spin_lock+0x30/0x40 [ 46.918253][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.918518][ C2] call_timer_fn+0x13b/0x230 [ 46.918718][ C2] __run_timers+0x545/0x810 [ 46.918991][ C2] run_timer_softirq+0xe8/0x1b0 [ 46.919170][ C2] __do_softirq+0x1f8/0x5df [ 46.919353][ C2] irq_exit_rcu+0x97/0xc0 [ 46.919543][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.919842][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.920093][ C2] default_idle+0xf/0x20 [ 46.920287][ C2] default_idle_call+0x6d/0xb0 [ 46.920551][ C2] cpuidle_idle_call+0x1f4/0x280 [ 46.920736][ C2] do_idle+0xf9/0x160 [ 46.920896][ C2] cpu_startup_entry+0x54/0x60 [ 46.921184][ C2] start_secondary+0x21c/0x2b0 [ 46.921383][ C2] common_startup_64+0x12c/0x138 [ 46.921588][ C2] INITIAL USE at: [ 46.921698][ C2] __lock_acquire+0x797/0x1570 [ 46.921971][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.922175][ C2] _raw_spin_lock_bh+0x38/0x50 [ 46.922361][ C2] br_set_mac_address+0xd2/0x260 [bridge] [ 46.922715][ C2] dev_set_mac_address+0x28a/0x410 [ 46.922908][ C2] dev_set_mac_address_user+0x31/0x50 [ 46.923091][ C2] do_setlink+0x17b4/0x21e0 [ 46.923302][ C2] rtnl_setlink+0x1f7/0x310 [ 46.923573][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.923759][ C2] netlink_rcv_skb+0x130/0x360 [ 46.923954][ C2] netlink_unicast+0x449/0x710 [ 46.924244][ C2] netlink_sendmsg+0x723/0xbe0 [ 46.924437][ C2] __sys_sendto+0x37d/0x410 [ 46.924640][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 46.924989][ C2] do_syscall_64+0xc6/0x1e0 [ 46.925194][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.925421][ C2] } [ 46.925513][ C2] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 46.925894][ C2] ... acquired at: [ 46.926007][ C2] mark_lock+0x28d/0x3e0 [ 46.926179][ C2] mark_usage+0xd9/0x2a0 [ 46.926325][ C2] __lock_acquire+0x797/0x1570 [ 46.926573][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.926719][ C2] _raw_spin_lock+0x30/0x40 [ 46.926866][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.927083][ C2] call_timer_fn+0x13b/0x230 [ 46.927236][ C2] __run_timers+0x545/0x810 [ 46.927382][ C2] run_timer_softirq+0xe8/0x1b0 [ 46.927528][ C2] __do_softirq+0x1f8/0x5df [ 46.927672][ C2] irq_exit_rcu+0x97/0xc0 [ 46.927903][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.928087][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.928290][ C2] default_idle+0xf/0x20 [ 46.928440][ C2] default_idle_call+0x6d/0xb0 [ 46.928683][ C2] cpuidle_idle_call+0x1f4/0x280 [ 46.928837][ C2] do_idle+0xf9/0x160 [ 46.928958][ C2] cpu_startup_entry+0x54/0x60 [ 46.929127][ C2] start_secondary+0x21c/0x2b0 [ 46.929292][ C2] common_startup_64+0x12c/0x138 [ 46.929536][ C2] [ 46.929616][ C2] [ 46.929616][ C2] stack backtrace: [ 46.929800][ C2] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.9.0-rc1-virtme #1 [ 46.930022][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 46.930430][ C2] Call Trace: [ 46.930545][ C2] [ 46.930621][ C2] dump_stack_lvl+0x82/0xd0 [ 46.930859][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 46.931041][ C2] ? common_startup_64+0x12c/0x138 [ 46.931193][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 46.931377][ C2] ? __pfx_usage_skip+0x10/0x10 [ 46.931611][ C2] ? __pfx_usage_match+0x10/0x10 [ 46.931757][ C2] ? arch_stack_walk+0x8c/0xf0 [ 46.931903][ C2] mark_lock_irq+0x4cd/0xa10 [ 46.932056][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 46.932205][ C2] ? stack_trace_save+0x94/0xd0 [ 46.932354][ C2] ? add_chain_cache+0x248/0x8b0 [ 46.932500][ C2] ? save_trace+0x8f/0x5b0 [ 46.932646][ C2] mark_lock+0x28d/0x3e0 [ 46.932755][ C2] mark_usage+0xd9/0x2a0 [ 46.932945][ C2] __lock_acquire+0x797/0x1570 [ 46.933093][ C2] ? __lock_acquire+0xaf0/0x1570 [ 46.933243][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.933508][ C2] lock_acquire.part.0+0xeb/0x330 [ 46.933732][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.933952][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 46.934097][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 46.934253][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.934550][ C2] ? lock_acquire+0x32/0xc0 [ 46.934696][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.934914][ C2] _raw_spin_lock+0x30/0x40 [ 46.935066][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.935362][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.935582][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.935837][ C2] call_timer_fn+0x13b/0x230 [ 46.936071][ C2] ? call_timer_fn+0xe8/0x230 [ 46.936227][ C2] ? call_timer_fn+0xe8/0x230 [ 46.936386][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 46.936531][ C2] ? mark_lock+0x38/0x3e0 [ 46.936809][ C2] __run_timers+0x545/0x810 [ 46.936958][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.937235][ C2] ? __pfx___run_timers+0x10/0x10 [ 46.937381][ C2] ? do_raw_spin_lock+0x131/0x270 [ 46.937628][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 46.937779][ C2] ? lock_acquire+0x32/0xc0 [ 46.937928][ C2] ? run_timer_softirq+0xe0/0x1b0 [ 46.938083][ C2] run_timer_softirq+0xe8/0x1b0 [ 46.938229][ C2] __do_softirq+0x1f8/0x5df [ 46.938378][ C2] irq_exit_rcu+0x97/0xc0 [ 46.938514][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.938664][ C2] [ 46.938742][ C2] [ 46.938817][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.939114][ C2] RIP: 0010:default_idle+0xf/0x20 [ 46.939269][ C2] 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 [ 46.939899][ C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000242 [ 46.940088][ C2] RAX: 00000000000f4bd5 RBX: 1ffff9200002bfc1 RCX: ffffffffa490e9d5 [ 46.940337][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa22aa4a4 [ 46.940638][ C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2709c [ 46.940866][ C2] R10: ffff8880361384e3 R11: ffff88803613dc80 R12: 0000000000000000 [ 46.941102][ C2] R13: ffff888001b7c5c0 R14: dffffc0000000000 R15: 0000000000000000 [ 46.941329][ C2] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 46.941475][ C2] ? cpuidle_idle_call+0x1f4/0x280 [ 46.941658][ C2] default_idle_call+0x6d/0xb0 [ 46.941901][ C2] cpuidle_idle_call+0x1f4/0x280 [ 46.942054][ C2] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 46.942236][ C2] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 46.942402][ C2] do_idle+0xf9/0x160 [ 46.942517][ C2] cpu_startup_entry+0x54/0x60 [ 46.942858][ C2] start_secondary+0x21c/0x2b0 [ 46.942996][ C2] ? __pfx_start_secondary+0x10/0x10 [ 46.943132][ C2] common_startup_64+0x12c/0x138 [ 46.943273][ C2] [ 48.104925][ T353] veth3: entered promiscuous mode [ 48.656424][ T359] GACT probability NOT on [ 50.438755][ T366] veth3: left promiscuous mode [ 50.551835][ T367] veth3: entered promiscuous mode [ 52.407557][ T376] veth3: left promiscuous mode [ 52.517693][ T378] br0: port 3(veth4) entered disabled state [ 52.625617][ T380] br0: port 2(veth2) entered disabled state [ 52.729218][ T381] br0: port 1(veth1) entered disabled state [ 52.844666][ T382] veth4: left allmulticast mode [ 52.844841][ T382] veth4: left promiscuous mode [ 52.845090][ T382] br0: port 3(veth4) entered disabled state [ 52.846081][ T382] veth2: left allmulticast mode [ 52.846216][ T382] veth2: left promiscuous mode [ 52.846459][ T382] br0: port 2(veth2) entered disabled state [ 52.847698][ T382] veth1: left allmulticast mode [ 52.847832][ T382] veth1: left promiscuous mode [ 52.848066][ T382] br0: port 1(veth1) entered disabled state