[ 28.381985][ T284] br1: port 1(veth1) entered blocking state [ 28.382435][ T284] br1: port 1(veth1) entered disabled state [ 28.382791][ T284] veth1: entered allmulticast mode [ 28.384786][ T284] veth1: entered promiscuous mode [ 28.698941][ T287] br1: port 2(veth2) entered blocking state [ 28.699245][ T287] br1: port 2(veth2) entered disabled state [ 28.699527][ T287] veth2: entered allmulticast mode [ 28.701443][ T287] veth2: entered promiscuous mode [ 28.943911][ T289] br1: port 2(veth2) entered blocking state [ 28.944341][ T289] br1: port 2(veth2) entered forwarding state [ 28.945039][ T289] br1: port 1(veth1) entered blocking state [ 28.945316][ T289] br1: port 1(veth1) entered forwarding state [ 35.901109][ T314] GACT probability NOT on [ 44.331241][ C0] [ 44.331389][ C0] ======================================================== [ 44.331623][ C0] WARNING: possible irq lock inversion dependency detected [ 44.331852][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 44.332004][ C0] -------------------------------------------------------- [ 44.332270][ C0] swapper/0/0 just changed the state of lock: [ 44.332457][ C0] ffff888005482c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.332844][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.333070][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 44.333076][ C0] [ 44.333076][ C0] [ 44.333076][ C0] and interrupts could create inverse lock ordering between them. [ 44.333076][ C0] [ 44.333641][ C0] [ 44.333641][ C0] other info that might help us debug this: [ 44.333871][ C0] Chain exists of: [ 44.333871][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.333871][ C0] [ 44.334227][ C0] Possible interrupt unsafe locking scenario: [ 44.334227][ C0] [ 44.334459][ C0] CPU0 CPU1 [ 44.334614][ C0] ---- ---- [ 44.334780][ C0] lock(&p->alloc_lock); [ 44.334901][ C0] local_irq_disable(); [ 44.335101][ C0] lock(&br->lock); [ 44.335293][ C0] lock(lweventlist_lock); [ 44.335505][ C0] [ 44.335629][ C0] lock(&br->lock); [ 44.335760][ C0] [ 44.335760][ C0] *** DEADLOCK *** [ 44.335760][ C0] [ 44.335999][ C0] 1 lock held by swapper/0/0: [ 44.336166][ C0] #0: ffffc90000007b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.336514][ C0] [ 44.336514][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 44.336800][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.337005][ C0] HARDIRQ-ON-W at: [ 44.337154][ C0] __lock_acquire+0x797/0x1570 [ 44.337370][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.337585][ C0] _raw_spin_lock+0x30/0x40 [ 44.337808][ C0] set_mems_allowed+0x1d/0x210 [ 44.338030][ C0] kernel_init_freeable+0x72/0x310 [ 44.338258][ C0] kernel_init+0x20/0x200 [ 44.338480][ C0] ret_from_fork+0x31/0x70 [ 44.338707][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.338917][ C0] SOFTIRQ-ON-W at: [ 44.339052][ C0] __lock_acquire+0x797/0x1570 [ 44.339304][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.339512][ C0] _raw_spin_lock+0x30/0x40 [ 44.339719][ C0] set_mems_allowed+0x1d/0x210 [ 44.339931][ C0] kernel_init_freeable+0x72/0x310 [ 44.340137][ C0] kernel_init+0x20/0x200 [ 44.340360][ C0] ret_from_fork+0x31/0x70 [ 44.340567][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.340778][ C0] INITIAL USE at: [ 44.340897][ C0] __lock_acquire+0x797/0x1570 [ 44.341119][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.341336][ C0] _raw_spin_lock+0x30/0x40 [ 44.341549][ C0] set_mems_allowed+0x1d/0x210 [ 44.341743][ C0] kernel_init_freeable+0x72/0x310 [ 44.341946][ C0] kernel_init+0x20/0x200 [ 44.342163][ C0] ret_from_fork+0x31/0x70 [ 44.342377][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.342575][ C0] } [ 44.342664][ C0] ... key at: [] __key.387+0x0/0x40 [ 44.342917][ C0] ... acquired at: [ 44.343042][ C0] __lock_acquire+0xaf0/0x1570 [ 44.343229][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.343382][ C0] _raw_spin_lock+0x30/0x40 [ 44.343558][ C0] __get_task_comm+0x27/0x70 [ 44.343727][ C0] ref_tracker_alloc+0x2ee/0x490 [ 44.343888][ C0] linkwatch_fire_event+0x196/0x200 [ 44.344056][ C0] veth_newlink+0x367/0x830 [veth] [ 44.344257][ C0] rtnl_newlink_create+0x341/0x850 [ 44.344412][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.344579][ C0] rtnl_newlink+0x63/0xa0 [ 44.344863][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.345029][ C0] netlink_rcv_skb+0x130/0x360 [ 44.345190][ C0] netlink_unicast+0x449/0x710 [ 44.345348][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.345500][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.345653][ C0] ___sys_sendmsg+0xee/0x170 [ 44.345810][ C0] __sys_sendmsg+0xcd/0x170 [ 44.345966][ C0] do_syscall_64+0xc6/0x1e0 [ 44.346122][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.346320][ C0] [ 44.346405][ C0] -> (lweventlist_lock){....}-{2:2} { [ 44.346568][ C0] INITIAL USE at: [ 44.346684][ C0] __lock_acquire+0x797/0x1570 [ 44.346883][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.347075][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.347275][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 44.347472][ C0] rtnl_getlink+0x4c9/0x970 [ 44.347667][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.347856][ C0] netlink_rcv_skb+0x130/0x360 [ 44.348050][ C0] netlink_unicast+0x449/0x710 [ 44.348242][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.348434][ C0] __sys_sendto+0x37d/0x410 [ 44.348630][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.348832][ C0] do_syscall_64+0xc6/0x1e0 [ 44.349023][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.349254][ C0] } [ 44.349335][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.349562][ C0] ... acquired at: [ 44.349675][ C0] __lock_acquire+0xaf0/0x1570 [ 44.349830][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.350088][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.350251][ C0] linkwatch_fire_event+0x74/0x200 [ 44.350409][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.350647][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.350973][ C0] dev_set_mac_address+0x28a/0x410 [ 44.351131][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.351284][ C0] do_setlink+0x17b4/0x21e0 [ 44.351436][ C0] rtnl_setlink+0x1f7/0x310 [ 44.351697][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.351853][ C0] netlink_rcv_skb+0x130/0x360 [ 44.352009][ C0] netlink_unicast+0x449/0x710 [ 44.352169][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.352424][ C0] __sys_sendto+0x37d/0x410 [ 44.352583][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.352738][ C0] do_syscall_64+0xc6/0x1e0 [ 44.352892][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.353193][ C0] [ 44.353271][ C0] -> (&br->lock){+.-.}-{2:2} { [ 44.353430][ C0] HARDIRQ-ON-W at: [ 44.353546][ C0] __lock_acquire+0x797/0x1570 [ 44.353746][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.353958][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.354152][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 44.354517][ C0] dev_set_mac_address+0x28a/0x410 [ 44.354732][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.354926][ C0] do_setlink+0x17b4/0x21e0 [ 44.355230][ C0] rtnl_setlink+0x1f7/0x310 [ 44.355428][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.355621][ C0] netlink_rcv_skb+0x130/0x360 [ 44.355814][ C0] netlink_unicast+0x449/0x710 [ 44.356016][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.356212][ C0] __sys_sendto+0x37d/0x410 [ 44.356406][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.356606][ C0] do_syscall_64+0xc6/0x1e0 [ 44.356912][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.357145][ C0] IN-SOFTIRQ-W at: [ 44.357263][ C0] __lock_acquire+0x797/0x1570 [ 44.357456][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.357752][ C0] _raw_spin_lock+0x30/0x40 [ 44.357958][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.358227][ C0] call_timer_fn+0x13b/0x230 [ 44.358616][ C0] __run_timers+0x545/0x810 [ 44.358816][ C0] timer_expire_remote+0x9b/0xe0 [ 44.359011][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 44.359217][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 44.359504][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 44.359698][ C0] __do_softirq+0x1f8/0x5df [ 44.359997][ C0] irq_exit_rcu+0x97/0xc0 [ 44.360307][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.360540][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.360769][ C0] default_idle+0xf/0x20 [ 44.360979][ C0] default_idle_call+0x6d/0xb0 [ 44.361172][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.361368][ C0] do_idle+0xf9/0x160 [ 44.361630][ C0] cpu_startup_entry+0x54/0x60 [ 44.361828][ C0] rest_init+0x14f/0x260 [ 44.362039][ C0] start_kernel+0x318/0x3d0 [ 44.362256][ C0] x86_64_start_reservations+0x18/0x30 [ 44.362666][ C0] x86_64_start_kernel+0xba/0x110 [ 44.362876][ C0] common_startup_64+0x12c/0x138 [ 44.363096][ C0] INITIAL USE at: [ 44.363230][ C0] __lock_acquire+0x797/0x1570 [ 44.363441][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.363767][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.363987][ C0] br_set_mac_address+0xd2/0x260 [bridge] [ 44.364277][ C0] dev_set_mac_address+0x28a/0x410 [ 44.364599][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.364833][ C0] do_setlink+0x17b4/0x21e0 [ 44.365043][ C0] rtnl_setlink+0x1f7/0x310 [ 44.365361][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.365572][ C0] netlink_rcv_skb+0x130/0x360 [ 44.365788][ C0] netlink_unicast+0x449/0x710 [ 44.366004][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.366316][ C0] __sys_sendto+0x37d/0x410 [ 44.366523][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.366726][ C0] do_syscall_64+0xc6/0x1e0 [ 44.366934][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.367176][ C0] } [ 44.367261][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.367686][ C0] ... acquired at: [ 44.367823][ C0] mark_lock+0x28d/0x3e0 [ 44.368001][ C0] mark_usage+0xd9/0x2a0 [ 44.368168][ C0] __lock_acquire+0x797/0x1570 [ 44.368427][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.368591][ C0] _raw_spin_lock+0x30/0x40 [ 44.368756][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.369004][ C0] call_timer_fn+0x13b/0x230 [ 44.369278][ C0] __run_timers+0x545/0x810 [ 44.369444][ C0] timer_expire_remote+0x9b/0xe0 [ 44.369609][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 44.369776][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 44.369951][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 44.370123][ C0] __do_softirq+0x1f8/0x5df [ 44.370288][ C0] irq_exit_rcu+0x97/0xc0 [ 44.370451][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.370652][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.370854][ C0] default_idle+0xf/0x20 [ 44.371016][ C0] default_idle_call+0x6d/0xb0 [ 44.371176][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.371441][ C0] do_idle+0xf9/0x160 [ 44.371569][ C0] cpu_startup_entry+0x54/0x60 [ 44.371731][ C0] rest_init+0x14f/0x260 [ 44.371900][ C0] start_kernel+0x318/0x3d0 [ 44.372070][ C0] x86_64_start_reservations+0x18/0x30 [ 44.372338][ C0] x86_64_start_kernel+0xba/0x110 [ 44.372504][ C0] common_startup_64+0x12c/0x138 [ 44.372670][ C0] [ 44.372753][ C0] [ 44.372753][ C0] stack backtrace: [ 44.372969][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 44.373332][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.373699][ C0] Call Trace: [ 44.373822][ C0] [ 44.373904][ C0] dump_stack_lvl+0x82/0xd0 [ 44.374078][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.374288][ C0] ? common_startup_64+0x12c/0x138 [ 44.374458][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.374689][ C0] ? __pfx_usage_skip+0x10/0x10 [ 44.374956][ C0] ? __pfx_usage_match+0x10/0x10 [ 44.375133][ C0] ? arch_stack_walk+0x8c/0xf0 [ 44.375305][ C0] mark_lock_irq+0x4cd/0xa10 [ 44.375474][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.375646][ C0] ? stack_trace_save+0x94/0xd0 [ 44.375923][ C0] ? add_chain_cache+0x248/0x8b0 [ 44.376092][ C0] ? save_trace+0x8f/0x5b0 [ 44.376262][ C0] mark_lock+0x28d/0x3e0 [ 44.376389][ C0] mark_usage+0xd9/0x2a0 [ 44.376517][ C0] __lock_acquire+0x797/0x1570 [ 44.376686][ C0] ? __lock_acquire+0xaf0/0x1570 [ 44.376959][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.377251][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.377416][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.377662][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.377831][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 44.378002][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.378366][ C0] ? lock_acquire+0x32/0xc0 [ 44.378536][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.378791][ C0] _raw_spin_lock+0x30/0x40 [ 44.378959][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.379309][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.379556][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.379841][ C0] call_timer_fn+0x13b/0x230 [ 44.380015][ C0] ? call_timer_fn+0xe8/0x230 [ 44.380187][ C0] ? call_timer_fn+0xe8/0x230 [ 44.380455][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 44.380626][ C0] ? mark_lock+0x38/0x3e0 [ 44.380758][ C0] __run_timers+0x545/0x810 [ 44.380927][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.381320][ C0] ? __pfx___run_timers+0x10/0x10 [ 44.381493][ C0] ? __lock_release+0x103/0x460 [ 44.381664][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.381832][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.382005][ C0] ? lock_acquire+0x32/0xc0 [ 44.382171][ C0] ? timer_expire_remote+0x93/0xe0 [ 44.382335][ C0] timer_expire_remote+0x9b/0xe0 [ 44.382509][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 44.382777][ C0] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 44.382989][ C0] ? timerqueue_del+0x68/0x120 [ 44.383161][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 44.383333][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 44.383598][ C0] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 44.383770][ C0] __do_softirq+0x1f8/0x5df [ 44.383943][ C0] irq_exit_rcu+0x97/0xc0 [ 44.384070][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.384250][ C0] [ 44.384436][ C0] [ 44.384523][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.384745][ C0] RIP: 0010:default_idle+0xf/0x20 [ 44.384921][ 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 [ 44.385639][ C0] RSP: 0018:ffffffff98807e00 EFLAGS: 00000246 [ 44.385851][ C0] RAX: 00000000000d351b RBX: 1ffffffff3100fc2 RCX: ffffffff9790e9d5 [ 44.386210][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff952aa4a4 [ 44.386464][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 44.386722][ C0] R10: ffff8880360384e3 R11: ffff88803603dc80 R12: 0000000000000000 [ 44.386984][ C0] R13: ffffffff9881d000 R14: dffffc0000000000 R15: 0000000000014770 [ 44.387237][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.387510][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 44.387683][ C0] default_idle_call+0x6d/0xb0 [ 44.387852][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.388022][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.388199][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.388380][ C0] do_idle+0xf9/0x160 [ 44.388514][ C0] cpu_startup_entry+0x54/0x60 [ 44.388681][ C0] rest_init+0x14f/0x260 [ 44.388808][ C0] start_kernel+0x318/0x3d0 [ 44.388979][ C0] x86_64_start_reservations+0x18/0x30 [ 44.389255][ C0] x86_64_start_kernel+0xba/0x110 [ 44.389421][ C0] common_startup_64+0x12c/0x138 [ 44.389596][ C0] [ 51.224323][ T548] br1: port 2(veth2) entered disabled state [ 51.224859][ T548] br1: port 1(veth1) entered disabled state [ 51.425937][ T550] veth2: left allmulticast mode [ 51.426174][ T550] veth2: left promiscuous mode [ 51.426463][ T550] br1: port 2(veth2) entered disabled state [ 51.622633][ T552] veth1: left allmulticast mode [ 51.622818][ T552] veth1: left promiscuous mode [ 51.623069][ T552] br1: port 1(veth1) entered disabled state