[ 29.020334][ T304] br0: port 1(veth1) entered blocking state [ 29.020886][ T304] br0: port 1(veth1) entered disabled state [ 29.021609][ T304] veth1: entered allmulticast mode [ 29.025075][ T304] veth1: entered promiscuous mode [ 29.176642][ T306] br0: port 2(veth2) entered blocking state [ 29.176974][ T306] br0: port 2(veth2) entered disabled state [ 29.177246][ T306] veth2: entered allmulticast mode [ 29.179038][ T306] veth2: entered promiscuous mode [ 29.304385][ T307] br0: port 3(veth4) entered blocking state [ 29.304922][ T307] br0: port 3(veth4) entered disabled state [ 29.305166][ T307] veth4: entered allmulticast mode [ 29.307087][ T307] veth4: entered promiscuous mode [ 29.891346][ T7] br0: port 1(veth1) entered blocking state [ 29.891754][ T7] br0: port 1(veth1) entered forwarding state [ 29.999768][ T51] br0: port 2(veth2) entered blocking state [ 30.000005][ T51] br0: port 2(veth2) entered forwarding state [ 30.118768][ T51] br0: port 3(veth4) entered blocking state [ 30.119109][ T51] br0: port 3(veth4) entered forwarding state [ 45.354426][ C0] [ 45.354685][ C0] ======================================================== [ 45.355030][ C0] WARNING: possible irq lock inversion dependency detected [ 45.355316][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 45.355470][ C0] -------------------------------------------------------- [ 45.355689][ C0] swapper/0/0 just changed the state of lock: [ 45.355874][ C0] ffff88800692ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.356241][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 45.356469][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 45.356474][ C0] [ 45.356474][ C0] [ 45.356474][ C0] and interrupts could create inverse lock ordering between them. [ 45.356474][ C0] [ 45.357010][ C0] [ 45.357010][ C0] other info that might help us debug this: [ 45.357223][ C0] Chain exists of: [ 45.357223][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 45.357223][ C0] [ 45.357559][ C0] Possible interrupt unsafe locking scenario: [ 45.357559][ C0] [ 45.357777][ C0] CPU0 CPU1 [ 45.357922][ C0] ---- ---- [ 45.358070][ C0] lock(&p->alloc_lock); [ 45.358183][ C0] local_irq_disable(); [ 45.358367][ C0] lock(&br->lock); [ 45.358549][ C0] lock(lweventlist_lock); [ 45.358733][ C0] [ 45.358843][ C0] lock(&br->lock); [ 45.358959][ C0] [ 45.358959][ C0] *** DEADLOCK *** [ 45.358959][ C0] [ 45.359176][ C0] 1 lock held by swapper/0/0: [ 45.359336][ C0] #0: ffffc90000007d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 45.359638][ C0] [ 45.359638][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 45.359891][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 45.360049][ C0] HARDIRQ-ON-W at: [ 45.360163][ C0] __lock_acquire+0x797/0x1570 [ 45.360361][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.360550][ C0] _raw_spin_lock+0x30/0x40 [ 45.360748][ C0] set_mems_allowed+0x1d/0x210 [ 45.360935][ C0] kernel_init_freeable+0x72/0x310 [ 45.361126][ C0] kernel_init+0x20/0x200 [ 45.361323][ C0] ret_from_fork+0x31/0x70 [ 45.361509][ C0] ret_from_fork_asm+0x1a/0x30 [ 45.361692][ C0] SOFTIRQ-ON-W at: [ 45.361803][ C0] __lock_acquire+0x797/0x1570 [ 45.361990][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.362181][ C0] _raw_spin_lock+0x30/0x40 [ 45.362381][ C0] set_mems_allowed+0x1d/0x210 [ 45.362566][ C0] kernel_init_freeable+0x72/0x310 [ 45.362747][ C0] kernel_init+0x20/0x200 [ 45.362931][ C0] ret_from_fork+0x31/0x70 [ 45.363130][ C0] ret_from_fork_asm+0x1a/0x30 [ 45.363328][ C0] INITIAL USE at: [ 45.363444][ C0] __lock_acquire+0x797/0x1570 [ 45.363628][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.363813][ C0] _raw_spin_lock+0x30/0x40 [ 45.363996][ C0] set_mems_allowed+0x1d/0x210 [ 45.364180][ C0] kernel_init_freeable+0x72/0x310 [ 45.364370][ C0] kernel_init+0x20/0x200 [ 45.364562][ C0] ret_from_fork+0x31/0x70 [ 45.364744][ C0] ret_from_fork_asm+0x1a/0x30 [ 45.364928][ C0] } [ 45.365003][ C0] ... key at: [] __key.387+0x0/0x40 [ 45.365226][ C0] ... acquired at: [ 45.365344][ C0] __lock_acquire+0xaf0/0x1570 [ 45.365492][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.365644][ C0] _raw_spin_lock+0x30/0x40 [ 45.365793][ C0] __get_task_comm+0x27/0x70 [ 45.365941][ C0] ref_tracker_alloc+0x2ee/0x490 [ 45.366090][ C0] linkwatch_fire_event+0x196/0x200 [ 45.366239][ C0] veth_newlink+0x367/0x830 [veth] [ 45.366398][ C0] rtnl_newlink_create+0x341/0x850 [ 45.366544][ C0] __rtnl_newlink+0xac9/0xd80 [ 45.366690][ C0] rtnl_newlink+0x63/0xa0 [ 45.366847][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.366995][ C0] netlink_rcv_skb+0x130/0x360 [ 45.367142][ C0] netlink_unicast+0x449/0x710 [ 45.367299][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.367446][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 45.367597][ C0] ___sys_sendmsg+0xee/0x170 [ 45.367745][ C0] __sys_sendmsg+0xcd/0x170 [ 45.367890][ C0] do_syscall_64+0xc6/0x1e0 [ 45.368037][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.368227][ C0] [ 45.368309][ C0] -> (lweventlist_lock){....}-{2:2} { [ 45.368460][ C0] INITIAL USE at: [ 45.368571][ C0] __lock_acquire+0x797/0x1570 [ 45.368756][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.368942][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.369125][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 45.369322][ C0] rtnl_getlink+0x4c9/0x970 [ 45.369505][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.369686][ C0] netlink_rcv_skb+0x130/0x360 [ 45.369870][ C0] netlink_unicast+0x449/0x710 [ 45.370051][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.370235][ C0] __sys_sendto+0x37d/0x410 [ 45.370434][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 45.370619][ C0] do_syscall_64+0xc6/0x1e0 [ 45.370804][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.371024][ C0] } [ 45.371106][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 45.371338][ C0] ... acquired at: [ 45.371448][ C0] __lock_acquire+0xaf0/0x1570 [ 45.371602][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.371747][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.371893][ C0] linkwatch_fire_event+0x74/0x200 [ 45.372039][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 45.372265][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 45.372490][ C0] dev_set_mac_address+0x28a/0x410 [ 45.372636][ C0] dev_set_mac_address_user+0x31/0x50 [ 45.372789][ C0] do_setlink+0x17b4/0x21e0 [ 45.372934][ C0] rtnl_setlink+0x1f7/0x310 [ 45.373089][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.373241][ C0] netlink_rcv_skb+0x130/0x360 [ 45.373396][ C0] netlink_unicast+0x449/0x710 [ 45.373541][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.373690][ C0] __sys_sendto+0x37d/0x410 [ 45.373839][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 45.373987][ C0] do_syscall_64+0xc6/0x1e0 [ 45.374141][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.374328][ C0] [ 45.374401][ C0] -> (&br->lock){+.-.}-{2:2} { [ 45.374550][ C0] HARDIRQ-ON-W at: [ 45.374663][ C0] __lock_acquire+0x797/0x1570 [ 45.374848][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.375032][ C0] _raw_spin_lock_bh+0x38/0x50 [ 45.375215][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 45.375489][ C0] dev_set_mac_address+0x28a/0x410 [ 45.375672][ C0] dev_set_mac_address_user+0x31/0x50 [ 45.375855][ C0] do_setlink+0x17b4/0x21e0 [ 45.376039][ C0] rtnl_setlink+0x1f7/0x310 [ 45.376223][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.376413][ C0] netlink_rcv_skb+0x130/0x360 [ 45.376604][ C0] netlink_unicast+0x449/0x710 [ 45.376789][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.376972][ C0] __sys_sendto+0x37d/0x410 [ 45.377166][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 45.377358][ C0] do_syscall_64+0xc6/0x1e0 [ 45.377542][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.377768][ C0] IN-SOFTIRQ-W at: [ 45.377881][ C0] __lock_acquire+0x797/0x1570 [ 45.378066][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.378250][ C0] _raw_spin_lock+0x30/0x40 [ 45.378442][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.378701][ C0] call_timer_fn+0x13b/0x230 [ 45.378887][ C0] __run_timers+0x545/0x810 [ 45.379074][ C0] run_timer_softirq+0xe8/0x1b0 [ 45.379257][ C0] __do_softirq+0x1f8/0x5df [ 45.379452][ C0] irq_exit_rcu+0x97/0xc0 [ 45.379635][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.379855][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.380076][ C0] default_idle+0xf/0x20 [ 45.380275][ C0] default_idle_call+0x6d/0xb0 [ 45.380465][ C0] cpuidle_idle_call+0x1f4/0x280 [ 45.380649][ C0] do_idle+0xf9/0x160 [ 45.380797][ C0] cpu_startup_entry+0x54/0x60 [ 45.380978][ C0] rest_init+0x14f/0x260 [ 45.381255][ C0] start_kernel+0x318/0x3d0 [ 45.381451][ C0] x86_64_start_reservations+0x18/0x30 [ 45.381639][ C0] x86_64_start_kernel+0xba/0x110 [ 45.381822][ C0] common_startup_64+0x12c/0x138 [ 45.382098][ C0] INITIAL USE at: [ 45.382210][ C0] __lock_acquire+0x797/0x1570 [ 45.382400][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.382676][ C0] _raw_spin_lock_bh+0x38/0x50 [ 45.382863][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 45.383126][ C0] dev_set_mac_address+0x28a/0x410 [ 45.383328][ C0] dev_set_mac_address_user+0x31/0x50 [ 45.383696][ C0] do_setlink+0x17b4/0x21e0 [ 45.383878][ C0] rtnl_setlink+0x1f7/0x310 [ 45.384060][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.384346][ C0] netlink_rcv_skb+0x130/0x360 [ 45.384536][ C0] netlink_unicast+0x449/0x710 [ 45.384715][ C0] netlink_sendmsg+0x723/0xbe0 [ 45.384987][ C0] __sys_sendto+0x37d/0x410 [ 45.385172][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 45.385360][ C0] do_syscall_64+0xc6/0x1e0 [ 45.385541][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.385855][ C0] } [ 45.385929][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 45.386217][ C0] ... acquired at: [ 45.386333][ C0] mark_lock+0x28d/0x3e0 [ 45.386569][ C0] mark_usage+0xd9/0x2a0 [ 45.386714][ C0] __lock_acquire+0x797/0x1570 [ 45.386861][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.387008][ C0] _raw_spin_lock+0x30/0x40 [ 45.387252][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.387483][ C0] call_timer_fn+0x13b/0x230 [ 45.387630][ C0] __run_timers+0x545/0x810 [ 45.387780][ C0] run_timer_softirq+0xe8/0x1b0 [ 45.388016][ C0] __do_softirq+0x1f8/0x5df [ 45.388161][ C0] irq_exit_rcu+0x97/0xc0 [ 45.388315][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.388499][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.388778][ C0] default_idle+0xf/0x20 [ 45.388924][ C0] default_idle_call+0x6d/0xb0 [ 45.389069][ C0] cpuidle_idle_call+0x1f4/0x280 [ 45.389215][ C0] do_idle+0xf9/0x160 [ 45.389464][ C0] cpu_startup_entry+0x54/0x60 [ 45.389612][ C0] rest_init+0x14f/0x260 [ 45.389756][ C0] start_kernel+0x318/0x3d0 [ 45.389906][ C0] x86_64_start_reservations+0x18/0x30 [ 45.390052][ C0] x86_64_start_kernel+0xba/0x110 [ 45.390203][ C0] common_startup_64+0x12c/0x138 [ 45.390356][ C0] [ 45.390434][ C0] [ 45.390434][ C0] stack backtrace: [ 45.390614][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 45.390854][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.391179][ C0] Call Trace: [ 45.391311][ C0] [ 45.391501][ C0] dump_stack_lvl+0x82/0xd0 [ 45.391652][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 45.391837][ C0] ? common_startup_64+0x12c/0x138 [ 45.391986][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 45.392168][ C0] ? __pfx_usage_skip+0x10/0x10 [ 45.392322][ C0] ? __pfx_usage_match+0x10/0x10 [ 45.392468][ C0] ? arch_stack_walk+0x8c/0xf0 [ 45.392619][ C0] mark_lock_irq+0x4cd/0xa10 [ 45.392859][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 45.393020][ C0] ? stack_trace_save+0x94/0xd0 [ 45.393173][ C0] ? add_chain_cache+0x248/0x8b0 [ 45.393326][ C0] ? save_trace+0x8f/0x5b0 [ 45.393564][ C0] mark_lock+0x28d/0x3e0 [ 45.393676][ C0] mark_usage+0xd9/0x2a0 [ 45.393787][ C0] __lock_acquire+0x797/0x1570 [ 45.393936][ C0] ? __lock_acquire+0xaf0/0x1570 [ 45.394087][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.394500][ C0] lock_acquire.part.0+0xeb/0x330 [ 45.394649][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.394867][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 45.395014][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 45.395159][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.395391][ C0] ? lock_acquire+0x32/0xc0 [ 45.395541][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.395763][ C0] _raw_spin_lock+0x30/0x40 [ 45.395909][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.396125][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.396351][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.396693][ C0] call_timer_fn+0x13b/0x230 [ 45.396838][ C0] ? call_timer_fn+0xe8/0x230 [ 45.396991][ C0] ? call_timer_fn+0xe8/0x230 [ 45.397137][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 45.397422][ C0] ? mark_lock+0x38/0x3e0 [ 45.397538][ C0] __run_timers+0x545/0x810 [ 45.397683][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.397939][ C0] ? __pfx___run_timers+0x10/0x10 [ 45.398086][ C0] ? do_raw_spin_lock+0x131/0x270 [ 45.398232][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 45.398390][ C0] ? lock_acquire+0x32/0xc0 [ 45.398537][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 45.398686][ C0] run_timer_softirq+0xe8/0x1b0 [ 45.398832][ C0] __do_softirq+0x1f8/0x5df [ 45.398983][ C0] irq_exit_rcu+0x97/0xc0 [ 45.399095][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.399242][ C0] [ 45.399329][ C0] [ 45.399403][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.399589][ C0] RIP: 0010:default_idle+0xf/0x20 [ 45.399746][ 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 [ 45.400366][ C0] RSP: 0018:ffffffff95807e00 EFLAGS: 00000246 [ 45.400562][ C0] RAX: 00000000000986f3 RBX: 1ffffffff2b00fc2 RCX: ffffffff9490e9d5 [ 45.400877][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff922aa4a4 [ 45.401095][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 45.401322][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 45.401633][ C0] R13: ffffffff9581d000 R14: dffffc0000000000 R15: 0000000000014770 [ 45.401854][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 45.402004][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 45.402242][ C0] default_idle_call+0x6d/0xb0 [ 45.402396][ C0] cpuidle_idle_call+0x1f4/0x280 [ 45.402542][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 45.402688][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 45.402925][ C0] do_idle+0xf9/0x160 [ 45.403057][ C0] cpu_startup_entry+0x54/0x60 [ 45.403203][ C0] rest_init+0x14f/0x260 [ 45.403330][ C0] start_kernel+0x318/0x3d0 [ 45.403483][ C0] x86_64_start_reservations+0x18/0x30 [ 45.403718][ C0] x86_64_start_kernel+0xba/0x110 [ 45.403863][ C0] common_startup_64+0x12c/0x138 [ 45.404011][ C0] [ 46.110729][ T352] veth3: entered promiscuous mode [ 46.583360][ T358] GACT probability NOT on [ 48.327974][ T365] veth3: left promiscuous mode [ 48.426106][ T366] veth3: entered promiscuous mode [ 50.308024][ T375] veth3: left promiscuous mode [ 50.420683][ T377] br0: port 3(veth4) entered disabled state [ 50.521339][ T378] br0: port 2(veth2) entered disabled state [ 50.611877][ T379] br0: port 1(veth1) entered disabled state [ 50.716664][ T380] veth4: left allmulticast mode [ 50.716826][ T380] veth4: left promiscuous mode [ 50.717073][ T380] br0: port 3(veth4) entered disabled state [ 50.718539][ T380] veth2: left allmulticast mode [ 50.718685][ T380] veth2: left promiscuous mode [ 50.718920][ T380] br0: port 2(veth2) entered disabled state [ 50.719804][ T380] veth1: left allmulticast mode [ 50.719939][ T380] veth1: left promiscuous mode [ 50.720177][ T380] br0: port 1(veth1) entered disabled state