[ 29.079784][ T287] br1: port 1(veth1) entered blocking state [ 29.080180][ T287] br1: port 1(veth1) entered disabled state [ 29.080552][ T287] veth1: entered allmulticast mode [ 29.082567][ T287] veth1: entered promiscuous mode [ 29.237037][ T7] br1: port 1(veth1) entered blocking state [ 29.237553][ T7] br1: port 1(veth1) entered forwarding state [ 29.359563][ T290] br1: port 2(veth2) entered blocking state [ 29.359895][ T290] br1: port 2(veth2) entered disabled state [ 29.360161][ T290] veth2: entered allmulticast mode [ 29.362075][ T290] veth2: entered promiscuous mode [ 29.483399][ T51] br1: port 2(veth2) entered blocking state [ 29.483748][ T51] br1: port 2(veth2) entered forwarding state [ 36.110907][ T310] GACT probability NOT on [ 44.339601][ C0] [ 44.339818][ C0] ======================================================== [ 44.340161][ C0] WARNING: possible irq lock inversion dependency detected [ 44.340526][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 44.340754][ C0] -------------------------------------------------------- [ 44.341096][ C0] swapper/0/0 just changed the state of lock: [ 44.341380][ C0] ffff888007ca2c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.342001][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.342361][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 44.342369][ C0] [ 44.342369][ C0] [ 44.342369][ C0] and interrupts could create inverse lock ordering between them. [ 44.342369][ C0] [ 44.343274][ C0] [ 44.343274][ C0] other info that might help us debug this: [ 44.343631][ C0] Chain exists of: [ 44.343631][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.343631][ C0] [ 44.344194][ C0] Possible interrupt unsafe locking scenario: [ 44.344194][ C0] [ 44.344545][ C0] CPU0 CPU1 [ 44.344775][ C0] ---- ---- [ 44.345013][ C0] lock(&p->alloc_lock); [ 44.345198][ C0] local_irq_disable(); [ 44.345502][ C0] lock(&br->lock); [ 44.345809][ C0] lock(lweventlist_lock); [ 44.346140][ C0] [ 44.346322][ C0] lock(&br->lock); [ 44.346512][ C0] [ 44.346512][ C0] *** DEADLOCK *** [ 44.346512][ C0] [ 44.346871][ C0] 1 lock held by swapper/0/0: [ 44.347111][ C0] #0: ffffc90000007d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.347627][ C0] [ 44.347627][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 44.348037][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.348281][ C0] HARDIRQ-ON-W at: [ 44.348468][ C0] __lock_acquire+0x797/0x1570 [ 44.348783][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.349107][ C0] _raw_spin_lock+0x30/0x40 [ 44.349418][ C0] set_mems_allowed+0x1d/0x210 [ 44.349727][ C0] kernel_init_freeable+0x72/0x310 [ 44.350035][ C0] kernel_init+0x20/0x200 [ 44.350339][ C0] ret_from_fork+0x31/0x70 [ 44.350648][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.350941][ C0] SOFTIRQ-ON-W at: [ 44.351130][ C0] __lock_acquire+0x797/0x1570 [ 44.351677][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.351974][ C0] _raw_spin_lock+0x30/0x40 [ 44.352287][ C0] set_mems_allowed+0x1d/0x210 [ 44.352584][ C0] kernel_init_freeable+0x72/0x310 [ 44.352886][ C0] kernel_init+0x20/0x200 [ 44.353198][ C0] ret_from_fork+0x31/0x70 [ 44.353492][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.353793][ C0] INITIAL USE at: [ 44.353975][ C0] __lock_acquire+0x797/0x1570 [ 44.354280][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.354585][ C0] _raw_spin_lock+0x30/0x40 [ 44.354879][ C0] set_mems_allowed+0x1d/0x210 [ 44.355213][ C0] kernel_init_freeable+0x72/0x310 [ 44.355512][ C0] kernel_init+0x20/0x200 [ 44.355817][ C0] ret_from_fork+0x31/0x70 [ 44.356141][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.356442][ C0] } [ 44.356561][ C0] ... key at: [] __key.387+0x0/0x40 [ 44.356920][ C0] ... acquired at: [ 44.357101][ C0] __lock_acquire+0xaf0/0x1570 [ 44.357348][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.357590][ C0] _raw_spin_lock+0x30/0x40 [ 44.357827][ C0] __get_task_comm+0x27/0x70 [ 44.358079][ C0] ref_tracker_alloc+0x2ee/0x490 [ 44.358335][ C0] linkwatch_fire_event+0x196/0x200 [ 44.358573][ C0] veth_newlink+0x367/0x830 [veth] [ 44.358835][ C0] rtnl_newlink_create+0x341/0x850 [ 44.359078][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.359315][ C0] rtnl_newlink+0x63/0xa0 [ 44.359545][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.359804][ C0] netlink_rcv_skb+0x130/0x360 [ 44.360048][ C0] netlink_unicast+0x449/0x710 [ 44.360296][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.360554][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.360799][ C0] ___sys_sendmsg+0xee/0x170 [ 44.361046][ C0] __sys_sendmsg+0xcd/0x170 [ 44.361282][ C0] do_syscall_64+0xc6/0x1e0 [ 44.361560][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.361911][ C0] [ 44.362036][ C0] -> (lweventlist_lock){....}-{2:2} { [ 44.362288][ C0] INITIAL USE at: [ 44.362468][ C0] __lock_acquire+0x797/0x1570 [ 44.362802][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.363131][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.363436][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 44.363765][ C0] rtnl_getlink+0x4c9/0x970 [ 44.364082][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.364412][ C0] netlink_rcv_skb+0x130/0x360 [ 44.364724][ C0] netlink_unicast+0x449/0x710 [ 44.365028][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.365334][ C0] __sys_sendto+0x37d/0x410 [ 44.365645][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.365943][ C0] do_syscall_64+0xc6/0x1e0 [ 44.366244][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.366601][ C0] } [ 44.366727][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.367077][ C0] ... acquired at: [ 44.367257][ C0] __lock_acquire+0xaf0/0x1570 [ 44.367495][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.367751][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.367982][ C0] linkwatch_fire_event+0x74/0x200 [ 44.368224][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.368606][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.368974][ C0] dev_set_mac_address+0x28a/0x410 [ 44.369213][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.369451][ C0] do_setlink+0x17b4/0x21e0 [ 44.369690][ C0] rtnl_setlink+0x1f7/0x310 [ 44.369916][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.370144][ C0] netlink_rcv_skb+0x130/0x360 [ 44.370378][ C0] netlink_unicast+0x449/0x710 [ 44.370625][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.370859][ C0] __sys_sendto+0x37d/0x410 [ 44.371092][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.371325][ C0] do_syscall_64+0xc6/0x1e0 [ 44.371572][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.371866][ C0] [ 44.371980][ C0] -> (&br->lock){+.-.}-{2:2} { [ 44.372213][ C0] HARDIRQ-ON-W at: [ 44.372386][ C0] __lock_acquire+0x797/0x1570 [ 44.372688][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.372977][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.373290][ C0] br_stp_enable_bridge+0x1f/0x2f0 [bridge] [ 44.373742][ C0] br_dev_open+0xa2/0x120 [bridge] [ 44.374092][ C0] __dev_open+0x221/0x430 [ 44.374384][ C0] __dev_change_flags+0x469/0x6c0 [ 44.374670][ C0] rtnl_configure_link+0x118/0x200 [ 44.374959][ C0] rtnl_newlink_create+0x36e/0x850 [ 44.375244][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.375529][ C0] rtnl_newlink+0x63/0xa0 [ 44.375816][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.376115][ C0] netlink_rcv_skb+0x130/0x360 [ 44.376431][ C0] netlink_unicast+0x449/0x710 [ 44.376750][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.377057][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.377358][ C0] ___sys_sendmsg+0xee/0x170 [ 44.377647][ C0] __sys_sendmsg+0xcd/0x170 [ 44.377937][ C0] do_syscall_64+0xc6/0x1e0 [ 44.378228][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.378580][ C0] IN-SOFTIRQ-W at: [ 44.378758][ C0] __lock_acquire+0x797/0x1570 [ 44.379051][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.379331][ C0] _raw_spin_lock+0x30/0x40 [ 44.379625][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.380048][ C0] call_timer_fn+0x13b/0x230 [ 44.380350][ C0] __run_timers+0x545/0x810 [ 44.380653][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.380944][ C0] __do_softirq+0x1f8/0x5df [ 44.381251][ C0] irq_exit_rcu+0x97/0xc0 [ 44.381565][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.381934][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.382318][ C0] default_idle+0xf/0x20 [ 44.382630][ C0] default_idle_call+0x6d/0xb0 [ 44.382950][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.383266][ C0] do_idle+0xf9/0x160 [ 44.383520][ C0] cpu_startup_entry+0x54/0x60 [ 44.383841][ C0] rest_init+0x14f/0x260 [ 44.384149][ C0] start_kernel+0x318/0x3d0 [ 44.384474][ C0] x86_64_start_reservations+0x18/0x30 [ 44.384798][ C0] x86_64_start_kernel+0xba/0x110 [ 44.385115][ C0] common_startup_64+0x12c/0x138 [ 44.385432][ C0] INITIAL USE at: [ 44.385653][ C0] __lock_acquire+0x797/0x1570 [ 44.385952][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.386263][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.386567][ C0] br_stp_enable_bridge+0x1f/0x2f0 [bridge] [ 44.387002][ C0] br_dev_open+0xa2/0x120 [bridge] [ 44.387378][ C0] __dev_open+0x221/0x430 [ 44.387690][ C0] __dev_change_flags+0x469/0x6c0 [ 44.387977][ C0] rtnl_configure_link+0x118/0x200 [ 44.388274][ C0] rtnl_newlink_create+0x36e/0x850 [ 44.388580][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.388881][ C0] rtnl_newlink+0x63/0xa0 [ 44.389174][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.389477][ C0] netlink_rcv_skb+0x130/0x360 [ 44.389794][ C0] netlink_unicast+0x449/0x710 [ 44.390149][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.390465][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.390765][ C0] ___sys_sendmsg+0xee/0x170 [ 44.391089][ C0] __sys_sendmsg+0xcd/0x170 [ 44.391465][ C0] do_syscall_64+0xc6/0x1e0 [ 44.391691][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.392030][ C0] } [ 44.392139][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.392488][ C0] ... acquired at: [ 44.392602][ C0] mark_lock+0x28d/0x3e0 [ 44.392848][ C0] mark_usage+0xd9/0x2a0 [ 44.392996][ C0] __lock_acquire+0x797/0x1570 [ 44.393164][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.393327][ C0] _raw_spin_lock+0x30/0x40 [ 44.393675][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.393918][ C0] call_timer_fn+0x13b/0x230 [ 44.394080][ C0] __run_timers+0x545/0x810 [ 44.394253][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.394505][ C0] __do_softirq+0x1f8/0x5df [ 44.394669][ C0] irq_exit_rcu+0x97/0xc0 [ 44.394821][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.395005][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.395448][ C0] default_idle+0xf/0x20 [ 44.395714][ C0] default_idle_call+0x6d/0xb0 [ 44.395981][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.396251][ C0] do_idle+0xf9/0x160 [ 44.396455][ C0] cpu_startup_entry+0x54/0x60 [ 44.396718][ C0] rest_init+0x14f/0x260 [ 44.396980][ C0] start_kernel+0x318/0x3d0 [ 44.397243][ C0] x86_64_start_reservations+0x18/0x30 [ 44.397507][ C0] x86_64_start_kernel+0xba/0x110 [ 44.397943][ C0] common_startup_64+0x12c/0x138 [ 44.398205][ C0] [ 44.398342][ C0] [ 44.398342][ C0] stack backtrace: [ 44.398665][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 44.399228][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.399809][ C0] Call Trace: [ 44.400008][ C0] [ 44.400317][ C0] dump_stack_lvl+0x82/0xd0 [ 44.400582][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.400909][ C0] ? common_startup_64+0x12c/0x138 [ 44.401174][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.401525][ C0] ? __pfx_usage_skip+0x10/0x10 [ 44.401771][ C0] ? __pfx_usage_match+0x10/0x10 [ 44.402026][ C0] ? arch_stack_walk+0x8c/0xf0 [ 44.402287][ C0] mark_lock_irq+0x4cd/0xa10 [ 44.402708][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.402955][ C0] ? stack_trace_save+0x94/0xd0 [ 44.403240][ C0] ? add_chain_cache+0x248/0x8b0 [ 44.403503][ C0] ? save_trace+0x8f/0x5b0 [ 44.403765][ C0] mark_lock+0x28d/0x3e0 [ 44.404132][ C0] mark_usage+0xd9/0x2a0 [ 44.404327][ C0] __lock_acquire+0x797/0x1570 [ 44.404594][ C0] ? __lock_acquire+0xaf0/0x1570 [ 44.404842][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.405457][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.405704][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.406111][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.406367][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 44.406669][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.407073][ C0] ? lock_acquire+0x32/0xc0 [ 44.407333][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.407724][ C0] _raw_spin_lock+0x30/0x40 [ 44.408159][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.408554][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.408926][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.409531][ C0] call_timer_fn+0x13b/0x230 [ 44.409776][ C0] ? call_timer_fn+0xe8/0x230 [ 44.410019][ C0] ? call_timer_fn+0xe8/0x230 [ 44.410264][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 44.410523][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.410773][ C0] __run_timers+0x545/0x810 [ 44.411021][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.411459][ C0] ? __pfx___run_timers+0x10/0x10 [ 44.411885][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.412129][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.412421][ C0] ? lock_acquire+0x32/0xc0 [ 44.412666][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 44.413266][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.413512][ C0] __do_softirq+0x1f8/0x5df [ 44.413791][ C0] irq_exit_rcu+0x97/0xc0 [ 44.413989][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.414249][ C0] [ 44.414553][ C0] [ 44.414685][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.415008][ C0] RIP: 0010:default_idle+0xf/0x20 [ 44.415276][ 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 [ 44.416385][ C0] RSP: 0018:ffffffffbc207e00 EFLAGS: 00000242 [ 44.416704][ C0] RAX: 00000000000aa215 RBX: 1ffffffff7840fc2 RCX: ffffffffbb30e9d5 [ 44.417276][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb8caa4a4 [ 44.417662][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 44.418055][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 44.418632][ C0] R13: ffffffffbc21d000 R14: dffffc0000000000 R15: 0000000000014770 [ 44.419009][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.419290][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 44.419551][ C0] default_idle_call+0x6d/0xb0 [ 44.419810][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.420073][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.420336][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.420771][ C0] do_idle+0xf9/0x160 [ 44.420969][ C0] cpu_startup_entry+0x54/0x60 [ 44.421228][ C0] rest_init+0x14f/0x260 [ 44.421436][ C0] start_kernel+0x318/0x3d0 [ 44.421703][ C0] x86_64_start_reservations+0x18/0x30 [ 44.422133][ C0] x86_64_start_kernel+0xba/0x110 [ 44.422399][ C0] common_startup_64+0x12c/0x138 [ 44.422662][ C0] [ 57.000613][ T475] br1: port 2(veth2) entered disabled state [ 57.096590][ T476] veth2: left allmulticast mode [ 57.096757][ T476] veth2: left promiscuous mode [ 57.097014][ T476] br1: port 2(veth2) entered disabled state [ 57.193908][ T477] br1: port 1(veth1) entered disabled state [ 57.285903][ T478] veth1: left allmulticast mode [ 57.286076][ T478] veth1: left promiscuous mode [ 57.286336][ T478] br1: port 1(veth1) entered disabled state