[ 31.254798][ T315] br: port 1(veth1) entered blocking state [ 31.255496][ T315] br: port 1(veth1) entered disabled state [ 31.255845][ T315] veth1: entered allmulticast mode [ 31.257876][ T315] veth1: entered promiscuous mode [ 31.260699][ T49] br: port 1(veth1) entered blocking state [ 31.261012][ T49] br: port 1(veth1) entered forwarding state [ 31.370790][ T317] br: port 2(veth3) entered blocking state [ 31.371068][ T317] br: port 2(veth3) entered disabled state [ 31.372058][ T317] veth3: entered allmulticast mode [ 31.373901][ T317] veth3: entered promiscuous mode [ 31.375904][ T51] br: port 2(veth3) entered blocking state [ 31.376259][ T51] br: port 2(veth3) entered forwarding state [ 31.506831][ T318] br: port 3(veth4) entered blocking state [ 31.508669][ T318] br: port 3(veth4) entered disabled state [ 31.509092][ T318] veth4: entered allmulticast mode [ 31.512281][ T318] veth4: entered promiscuous mode [ 31.514445][ T49] br: port 3(veth4) entered blocking state [ 31.514791][ T49] br: port 3(veth4) entered forwarding state [ 46.384548][ C1] [ 46.384727][ C1] ======================================================== [ 46.384933][ C1] WARNING: possible irq lock inversion dependency detected [ 46.385163][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 46.385308][ C1] -------------------------------------------------------- [ 46.385511][ C1] swapper/1/0 just changed the state of lock: [ 46.385694][ C1] ffff888007b02c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.386067][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 46.386274][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 46.386279][ C1] [ 46.386279][ C1] [ 46.386279][ C1] and interrupts could create inverse lock ordering between them. [ 46.386279][ C1] [ 46.386771][ C1] [ 46.386771][ C1] other info that might help us debug this: [ 46.386980][ C1] Chain exists of: [ 46.386980][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 46.386980][ C1] [ 46.387324][ C1] Possible interrupt unsafe locking scenario: [ 46.387324][ C1] [ 46.387546][ C1] CPU0 CPU1 [ 46.387678][ C1] ---- ---- [ 46.387822][ C1] lock(&p->alloc_lock); [ 46.387925][ C1] local_irq_disable(); [ 46.388102][ C1] lock(&br->lock); [ 46.388281][ C1] lock(lweventlist_lock); [ 46.388450][ C1] [ 46.388554][ C1] lock(&br->lock); [ 46.388675][ C1] [ 46.388675][ C1] *** DEADLOCK *** [ 46.388675][ C1] [ 46.388867][ C1] 1 lock held by swapper/1/0: [ 46.389006][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 46.389284][ C1] [ 46.389284][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 46.389529][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 46.389677][ C1] HARDIRQ-ON-W at: [ 46.389778][ C1] __lock_acquire+0x797/0x1570 [ 46.389958][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.390163][ C1] _raw_spin_lock+0x30/0x40 [ 46.390340][ C1] set_mems_allowed+0x1d/0x210 [ 46.390525][ C1] kernel_init_freeable+0x72/0x310 [ 46.390696][ C1] kernel_init+0x20/0x200 [ 46.390867][ C1] ret_from_fork+0x31/0x70 [ 46.391065][ C1] ret_from_fork_asm+0x1a/0x30 [ 46.391283][ C1] SOFTIRQ-ON-W at: [ 46.391389][ C1] __lock_acquire+0x797/0x1570 [ 46.391572][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.391742][ C1] _raw_spin_lock+0x30/0x40 [ 46.391919][ C1] set_mems_allowed+0x1d/0x210 [ 46.392109][ C1] kernel_init_freeable+0x72/0x310 [ 46.392283][ C1] kernel_init+0x20/0x200 [ 46.392458][ C1] ret_from_fork+0x31/0x70 [ 46.392634][ C1] ret_from_fork_asm+0x1a/0x30 [ 46.392802][ C1] INITIAL USE at: [ 46.392903][ C1] __lock_acquire+0x797/0x1570 [ 46.393073][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.393248][ C1] _raw_spin_lock+0x30/0x40 [ 46.393418][ C1] set_mems_allowed+0x1d/0x210 [ 46.393598][ C1] kernel_init_freeable+0x72/0x310 [ 46.393772][ C1] kernel_init+0x20/0x200 [ 46.393945][ C1] ret_from_fork+0x31/0x70 [ 46.394131][ C1] ret_from_fork_asm+0x1a/0x30 [ 46.394314][ C1] } [ 46.394384][ C1] ... key at: [] __key.387+0x0/0x40 [ 46.394598][ C1] ... acquired at: [ 46.394705][ C1] __lock_acquire+0xaf0/0x1570 [ 46.394856][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.394996][ C1] _raw_spin_lock+0x30/0x40 [ 46.395161][ C1] __get_task_comm+0x27/0x70 [ 46.395300][ C1] ref_tracker_alloc+0x2ee/0x490 [ 46.395443][ C1] linkwatch_fire_event+0x196/0x200 [ 46.395577][ C1] veth_newlink+0x367/0x830 [veth] [ 46.395716][ C1] rtnl_newlink_create+0x341/0x850 [ 46.395853][ C1] __rtnl_newlink+0xac9/0xd80 [ 46.395990][ C1] rtnl_newlink+0x63/0xa0 [ 46.396126][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.396260][ C1] netlink_rcv_skb+0x130/0x360 [ 46.396393][ C1] netlink_unicast+0x449/0x710 [ 46.396525][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.396656][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 46.396792][ C1] ___sys_sendmsg+0xee/0x170 [ 46.396926][ C1] __sys_sendmsg+0xcd/0x170 [ 46.397068][ C1] do_syscall_64+0xc6/0x1e0 [ 46.397206][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.397369][ C1] [ 46.397440][ C1] -> (lweventlist_lock){....}-{2:2} { [ 46.397600][ C1] INITIAL USE at: [ 46.397700][ C1] __lock_acquire+0x797/0x1570 [ 46.397868][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.398059][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.398231][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 46.398398][ C1] rtnl_getlink+0x4c9/0x970 [ 46.398562][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.398747][ C1] netlink_rcv_skb+0x130/0x360 [ 46.398912][ C1] netlink_unicast+0x449/0x710 [ 46.399091][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.399260][ C1] __sys_sendto+0x37d/0x410 [ 46.399425][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 46.399591][ C1] do_syscall_64+0xc6/0x1e0 [ 46.399760][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.399971][ C1] } [ 46.400052][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 46.400280][ C1] ... acquired at: [ 46.400380][ C1] __lock_acquire+0xaf0/0x1570 [ 46.400525][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.400669][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 46.400801][ C1] linkwatch_fire_event+0x74/0x200 [ 46.400944][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 46.401183][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 46.401396][ C1] dev_set_mac_address+0x28a/0x410 [ 46.401530][ C1] dev_set_mac_address_user+0x31/0x50 [ 46.401666][ C1] do_setlink+0x17b4/0x21e0 [ 46.401796][ C1] rtnl_setlink+0x1f7/0x310 [ 46.401926][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.402065][ C1] netlink_rcv_skb+0x130/0x360 [ 46.402198][ C1] netlink_unicast+0x449/0x710 [ 46.402333][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.402471][ C1] __sys_sendto+0x37d/0x410 [ 46.402602][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 46.402735][ C1] do_syscall_64+0xc6/0x1e0 [ 46.402870][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.403040][ C1] [ 46.403109][ C1] -> (&br->lock){+.-.}-{2:2} { [ 46.403248][ C1] HARDIRQ-ON-W at: [ 46.403348][ C1] __lock_acquire+0x797/0x1570 [ 46.403517][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.403685][ C1] _raw_spin_lock_bh+0x38/0x50 [ 46.403882][ C1] br_stp_enable_bridge+0x1f/0x2f0 [bridge] [ 46.404251][ C1] br_dev_open+0xa2/0x120 [bridge] [ 46.404565][ C1] __dev_open+0x221/0x430 [ 46.404772][ C1] __dev_change_flags+0x469/0x6c0 [ 46.405030][ C1] rtnl_configure_link+0x118/0x200 [ 46.405297][ C1] rtnl_newlink_create+0x36e/0x850 [ 46.405557][ C1] __rtnl_newlink+0xac9/0xd80 [ 46.405819][ C1] rtnl_newlink+0x63/0xa0 [ 46.406090][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.406350][ C1] netlink_rcv_skb+0x130/0x360 [ 46.406587][ C1] netlink_unicast+0x449/0x710 [ 46.406849][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.407104][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 46.407361][ C1] ___sys_sendmsg+0xee/0x170 [ 46.407622][ C1] __sys_sendmsg+0xcd/0x170 [ 46.407879][ C1] do_syscall_64+0xc6/0x1e0 [ 46.408136][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.408449][ C1] IN-SOFTIRQ-W at: [ 46.408622][ C1] __lock_acquire+0x797/0x1570 [ 46.408955][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.409217][ C1] _raw_spin_lock+0x30/0x40 [ 46.409482][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.409855][ C1] call_timer_fn+0x13b/0x230 [ 46.410107][ C1] __run_timers+0x545/0x810 [ 46.410358][ C1] run_timer_softirq+0xe8/0x1b0 [ 46.410752][ C1] __do_softirq+0x1f8/0x5df [ 46.411005][ C1] irq_exit_rcu+0x97/0xc0 [ 46.411260][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.411699][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.411997][ C1] default_idle+0xf/0x20 [ 46.412246][ C1] default_idle_call+0x6d/0xb0 [ 46.412505][ C1] cpuidle_idle_call+0x1f4/0x280 [ 46.412898][ C1] do_idle+0xf9/0x160 [ 46.413118][ C1] cpu_startup_entry+0x54/0x60 [ 46.413393][ C1] start_secondary+0x21c/0x2b0 [ 46.413811][ C1] common_startup_64+0x12c/0x138 [ 46.414098][ C1] INITIAL USE at: [ 46.414269][ C1] __lock_acquire+0x797/0x1570 [ 46.414567][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.414840][ C1] _raw_spin_lock_bh+0x38/0x50 [ 46.415104][ C1] br_stp_enable_bridge+0x1f/0x2f0 [bridge] [ 46.415503][ C1] br_dev_open+0xa2/0x120 [bridge] [ 46.415956][ C1] __dev_open+0x221/0x430 [ 46.416219][ C1] __dev_change_flags+0x469/0x6c0 [ 46.416494][ C1] rtnl_configure_link+0x118/0x200 [ 46.416894][ C1] rtnl_newlink_create+0x36e/0x850 [ 46.417133][ C1] __rtnl_newlink+0xac9/0xd80 [ 46.417393][ C1] rtnl_newlink+0x63/0xa0 [ 46.417661][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 46.418064][ C1] netlink_rcv_skb+0x130/0x360 [ 46.418343][ C1] netlink_unicast+0x449/0x710 [ 46.418632][ C1] netlink_sendmsg+0x723/0xbe0 [ 46.419019][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 46.419290][ C1] ___sys_sendmsg+0xee/0x170 [ 46.419556][ C1] __sys_sendmsg+0xcd/0x170 [ 46.419966][ C1] do_syscall_64+0xc6/0x1e0 [ 46.420242][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 46.420562][ C1] } [ 46.420666][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 46.421224][ C1] ... acquired at: [ 46.421384][ C1] mark_lock+0x28d/0x3e0 [ 46.421598][ C1] mark_usage+0xd9/0x2a0 [ 46.421811][ C1] __lock_acquire+0x797/0x1570 [ 46.422171][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.422388][ C1] _raw_spin_lock+0x30/0x40 [ 46.422606][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.422938][ C1] call_timer_fn+0x13b/0x230 [ 46.423287][ C1] __run_timers+0x545/0x810 [ 46.423501][ C1] run_timer_softirq+0xe8/0x1b0 [ 46.423714][ C1] __do_softirq+0x1f8/0x5df [ 46.423928][ C1] irq_exit_rcu+0x97/0xc0 [ 46.424141][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.424409][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.424680][ C1] default_idle+0xf/0x20 [ 46.424889][ C1] default_idle_call+0x6d/0xb0 [ 46.425236][ C1] cpuidle_idle_call+0x1f4/0x280 [ 46.425455][ C1] do_idle+0xf9/0x160 [ 46.425616][ C1] cpu_startup_entry+0x54/0x60 [ 46.425829][ C1] start_secondary+0x21c/0x2b0 [ 46.426044][ C1] common_startup_64+0x12c/0x138 [ 46.426397][ C1] [ 46.426504][ C1] [ 46.426504][ C1] stack backtrace: [ 46.426776][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 46.427089][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 46.427589][ C1] Call Trace: [ 46.427763][ C1] [ 46.427878][ C1] dump_stack_lvl+0x82/0xd0 [ 46.428108][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 46.428392][ C1] ? common_startup_64+0x12c/0x138 [ 46.428619][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 46.428903][ C1] ? __pfx_usage_skip+0x10/0x10 [ 46.429276][ C1] ? __pfx_usage_match+0x10/0x10 [ 46.429501][ C1] ? arch_stack_walk+0x8c/0xf0 [ 46.429719][ C1] mark_lock_irq+0x4cd/0xa10 [ 46.429946][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 46.430316][ C1] ? stack_trace_save+0x94/0xd0 [ 46.430546][ C1] ? add_chain_cache+0x248/0x8b0 [ 46.430792][ C1] ? save_trace+0x8f/0x5b0 [ 46.431009][ C1] mark_lock+0x28d/0x3e0 [ 46.431180][ C1] mark_usage+0xd9/0x2a0 [ 46.431349][ C1] __lock_acquire+0x797/0x1570 [ 46.431556][ C1] ? __lock_acquire+0xaf0/0x1570 [ 46.431768][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.432146][ C1] lock_acquire.part.0+0xeb/0x330 [ 46.432370][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.432705][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 46.432918][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 46.433158][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.433644][ C1] ? lock_acquire+0x32/0xc0 [ 46.433872][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.434215][ C1] _raw_spin_lock+0x30/0x40 [ 46.434447][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.434797][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 46.435140][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.435533][ C1] call_timer_fn+0x13b/0x230 [ 46.435885][ C1] ? call_timer_fn+0xe8/0x230 [ 46.436100][ C1] ? call_timer_fn+0xe8/0x230 [ 46.436321][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 46.436534][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 46.436896][ C1] __run_timers+0x545/0x810 [ 46.437117][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 46.437502][ C1] ? __pfx___run_timers+0x10/0x10 [ 46.437722][ C1] ? do_raw_spin_lock+0x131/0x270 [ 46.437930][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 46.438144][ C1] ? lock_acquire+0x32/0xc0 [ 46.438364][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 46.438586][ C1] run_timer_softirq+0xe8/0x1b0 [ 46.438884][ C1] __do_softirq+0x1f8/0x5df [ 46.439046][ C1] irq_exit_rcu+0x97/0xc0 [ 46.439160][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 46.439307][ C1] [ 46.439470][ C1] [ 46.439547][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 46.439731][ C1] RIP: 0010:default_idle+0xf/0x20 [ 46.439891][ C1] 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 [ 46.440491][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000242 [ 46.440676][ C1] RAX: 0000000000121c31 RBX: 1ffff92000029fc1 RCX: ffffffff9dd0f9e5 [ 46.440889][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9b6aa4a4 [ 46.441105][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 46.441328][ C1] R10: ffff8880360b84e3 R11: ffff8880360bdc80 R12: 0000000000000000 [ 46.441623][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 46.441846][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 46.441990][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 46.442140][ C1] default_idle_call+0x6d/0xb0 [ 46.442366][ C1] cpuidle_idle_call+0x1f4/0x280 [ 46.442517][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 46.442661][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 46.442810][ C1] do_idle+0xf9/0x160 [ 46.442922][ C1] cpu_startup_entry+0x54/0x60 [ 46.443145][ C1] start_secondary+0x21c/0x2b0 [ 46.443289][ C1] ? __pfx_start_secondary+0x10/0x10 [ 46.443436][ C1] common_startup_64+0x12c/0x138 [ 46.443585][ C1] [ 128.364721][ T656] Mirror/redirect action on [ 166.291898][ T800] br: port 3(veth4) entered disabled state [ 166.293516][ T800] veth4: left allmulticast mode [ 166.293670][ T800] veth4: left promiscuous mode [ 166.293918][ T800] br: port 3(veth4) entered disabled state [ 166.400957][ T802] br: port 2(veth3) entered disabled state [ 166.401526][ T802] veth3: left allmulticast mode [ 166.401670][ T802] veth3: left promiscuous mode [ 166.401920][ T802] br: port 2(veth3) entered disabled state [ 166.510803][ T803] br: port 1(veth1) entered disabled state [ 166.511352][ T803] veth1: left allmulticast mode [ 166.511490][ T803] veth1: left promiscuous mode [ 166.511729][ T803] br: port 1(veth1) entered disabled state