[ 29.656505][ T289] br1: port 1(veth1) entered blocking state [ 29.657089][ T289] br1: port 1(veth1) entered disabled state [ 29.657564][ T289] veth1: entered allmulticast mode [ 29.661429][ T289] veth1: entered promiscuous mode [ 29.787855][ T7] br1: port 1(veth1) entered blocking state [ 29.788198][ T7] br1: port 1(veth1) entered forwarding state [ 29.892594][ T291] br1: port 2(veth2) entered blocking state [ 29.892861][ T291] br1: port 2(veth2) entered disabled state [ 29.893107][ T291] veth2: entered allmulticast mode [ 29.894900][ T291] veth2: entered promiscuous mode [ 30.023288][ T51] br1: port 2(veth2) entered blocking state [ 30.023646][ T51] br1: port 2(veth2) entered forwarding state [ 44.847949][ C0] [ 44.848075][ C0] ======================================================== [ 44.848318][ C0] WARNING: possible irq lock inversion dependency detected [ 44.848547][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 44.848700][ C0] -------------------------------------------------------- [ 44.848940][ C0] swapper/0/0 just changed the state of lock: [ 44.849132][ C0] ffff888004fe2c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.849537][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.849766][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 44.849770][ C0] [ 44.849770][ C0] [ 44.849770][ C0] and interrupts could create inverse lock ordering between them. [ 44.849770][ C0] [ 44.850342][ C0] [ 44.850342][ C0] other info that might help us debug this: [ 44.850566][ C0] Chain exists of: [ 44.850566][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.850566][ C0] [ 44.850925][ C0] Possible interrupt unsafe locking scenario: [ 44.850925][ C0] [ 44.851157][ C0] CPU0 CPU1 [ 44.851305][ C0] ---- ---- [ 44.851458][ C0] lock(&p->alloc_lock); [ 44.851573][ C0] local_irq_disable(); [ 44.851767][ C0] lock(&br->lock); [ 44.851972][ C0] lock(lweventlist_lock); [ 44.852164][ C0] [ 44.852281][ C0] lock(&br->lock); [ 44.852396][ C0] [ 44.852396][ C0] *** DEADLOCK *** [ 44.852396][ C0] [ 44.852656][ C0] 1 lock held by swapper/0/0: [ 44.852836][ C0] #0: ffffc90000007d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.853168][ C0] [ 44.853168][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 44.853437][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.853601][ C0] HARDIRQ-ON-W at: [ 44.853720][ C0] __lock_acquire+0x797/0x1570 [ 44.853928][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.854123][ C0] _raw_spin_lock+0x30/0x40 [ 44.854327][ C0] set_mems_allowed+0x1d/0x210 [ 44.854516][ C0] kernel_init_freeable+0x72/0x310 [ 44.854727][ C0] kernel_init+0x20/0x200 [ 44.854930][ C0] ret_from_fork+0x31/0x70 [ 44.855128][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.855314][ C0] SOFTIRQ-ON-W at: [ 44.855434][ C0] __lock_acquire+0x797/0x1570 [ 44.855626][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.855817][ C0] _raw_spin_lock+0x30/0x40 [ 44.856016][ C0] set_mems_allowed+0x1d/0x210 [ 44.856204][ C0] kernel_init_freeable+0x72/0x310 [ 44.856396][ C0] kernel_init+0x20/0x200 [ 44.856592][ C0] ret_from_fork+0x31/0x70 [ 44.856789][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.856981][ C0] INITIAL USE at: [ 44.857096][ C0] __lock_acquire+0x797/0x1570 [ 44.857286][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.857484][ C0] _raw_spin_lock+0x30/0x40 [ 44.857680][ C0] set_mems_allowed+0x1d/0x210 [ 44.857876][ C0] kernel_init_freeable+0x72/0x310 [ 44.858070][ C0] kernel_init+0x20/0x200 [ 44.858262][ C0] ret_from_fork+0x31/0x70 [ 44.858460][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.858663][ C0] } [ 44.858744][ C0] ... key at: [] __key.387+0x0/0x40 [ 44.858984][ C0] ... acquired at: [ 44.859106][ C0] __lock_acquire+0xaf0/0x1570 [ 44.859264][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.859425][ C0] _raw_spin_lock+0x30/0x40 [ 44.859590][ C0] __get_task_comm+0x27/0x70 [ 44.859754][ C0] ref_tracker_alloc+0x2ee/0x490 [ 44.859913][ C0] linkwatch_fire_event+0x196/0x200 [ 44.860076][ C0] veth_newlink+0x367/0x830 [veth] [ 44.860249][ C0] rtnl_newlink_create+0x341/0x850 [ 44.860411][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.860570][ C0] rtnl_newlink+0x63/0xa0 [ 44.860726][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.860884][ C0] netlink_rcv_skb+0x130/0x360 [ 44.861047][ C0] netlink_unicast+0x449/0x710 [ 44.861204][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.861358][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.861607][ C0] ___sys_sendmsg+0xee/0x170 [ 44.861764][ C0] __sys_sendmsg+0xcd/0x170 [ 44.861917][ C0] do_syscall_64+0xc6/0x1e0 [ 44.862068][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.862347][ C0] [ 44.862438][ C0] -> (lweventlist_lock){....}-{2:2} { [ 44.862596][ C0] INITIAL USE at: [ 44.862710][ C0] __lock_acquire+0x797/0x1570 [ 44.862901][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.863185][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.863380][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 44.863582][ C0] rtnl_getlink+0x4c9/0x970 [ 44.863867][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.864057][ C0] netlink_rcv_skb+0x130/0x360 [ 44.864250][ C0] netlink_unicast+0x449/0x710 [ 44.864533][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.864733][ C0] __sys_sendto+0x37d/0x410 [ 44.864924][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.865114][ C0] do_syscall_64+0xc6/0x1e0 [ 44.865398][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.865626][ C0] } [ 44.865703][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.866032][ C0] ... acquired at: [ 44.866144][ C0] __lock_acquire+0xaf0/0x1570 [ 44.866308][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.866490][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.866643][ C0] linkwatch_fire_event+0x74/0x200 [ 44.866884][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.867127][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.867344][ C0] dev_set_mac_address+0x28a/0x410 [ 44.867494][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.867736][ C0] do_setlink+0x17b4/0x21e0 [ 44.867886][ C0] rtnl_setlink+0x1f7/0x310 [ 44.868033][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.868182][ C0] netlink_rcv_skb+0x130/0x360 [ 44.868423][ C0] netlink_unicast+0x449/0x710 [ 44.868571][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.868721][ C0] __sys_sendto+0x37d/0x410 [ 44.868872][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.869114][ C0] do_syscall_64+0xc6/0x1e0 [ 44.869261][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.869442][ C0] [ 44.869515][ C0] -> (&br->lock){+.-.}-{2:2} { [ 44.869764][ C0] HARDIRQ-ON-W at: [ 44.869878][ C0] __lock_acquire+0x797/0x1570 [ 44.870069][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.870260][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.870544][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 44.870802][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.871067][ C0] br_changelink+0x36c/0x1360 [bridge] [ 44.871389][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.871717][ C0] rtnl_newlink_create+0x341/0x850 [ 44.871903][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.872089][ C0] rtnl_newlink+0x63/0xa0 [ 44.872373][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.872587][ C0] netlink_rcv_skb+0x130/0x360 [ 44.872774][ C0] netlink_unicast+0x449/0x710 [ 44.873052][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.873242][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.873432][ C0] ___sys_sendmsg+0xee/0x170 [ 44.873621][ C0] __sys_sendmsg+0xcd/0x170 [ 44.873901][ C0] do_syscall_64+0xc6/0x1e0 [ 44.874089][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.874312][ C0] IN-SOFTIRQ-W at: [ 44.874519][ C0] __lock_acquire+0x797/0x1570 [ 44.874709][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.874896][ C0] _raw_spin_lock+0x30/0x40 [ 44.875183][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.875450][ C0] call_timer_fn+0x13b/0x230 [ 44.875646][ C0] __run_timers+0x545/0x810 [ 44.875830][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.876117][ C0] __do_softirq+0x1f8/0x5df [ 44.876300][ C0] irq_exit_rcu+0x97/0xc0 [ 44.876485][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.876795][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.877013][ C0] default_idle+0xf/0x20 [ 44.877196][ C0] default_idle_call+0x6d/0xb0 [ 44.877471][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.877671][ C0] do_idle+0xf9/0x160 [ 44.877819][ C0] cpu_startup_entry+0x54/0x60 [ 44.878006][ C0] rest_init+0x14f/0x260 [ 44.878288][ C0] start_kernel+0x318/0x3d0 [ 44.878473][ C0] x86_64_start_reservations+0x18/0x30 [ 44.878658][ C0] x86_64_start_kernel+0xba/0x110 [ 44.878944][ C0] common_startup_64+0x12c/0x138 [ 44.879131][ C0] INITIAL USE at: [ 44.879243][ C0] __lock_acquire+0x797/0x1570 [ 44.879427][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.879614][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.879798][ C0] recalculate_group_addr+0x55/0x130 [bridge] [ 44.880060][ C0] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.880315][ C0] br_changelink+0x36c/0x1360 [bridge] [ 44.880535][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.880765][ C0] rtnl_newlink_create+0x341/0x850 [ 44.881050][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.881244][ C0] rtnl_newlink+0x63/0xa0 [ 44.881428][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.881711][ C0] netlink_rcv_skb+0x130/0x360 [ 44.881894][ C0] netlink_unicast+0x449/0x710 [ 44.882078][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.882258][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.882619][ C0] ___sys_sendmsg+0xee/0x170 [ 44.882900][ C0] __sys_sendmsg+0xcd/0x170 [ 44.883188][ C0] do_syscall_64+0xc6/0x1e0 [ 44.883492][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.884014][ C0] } [ 44.884137][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.884617][ C0] ... acquired at: [ 44.884862][ C0] mark_lock+0x28d/0x3e0 [ 44.885018][ C0] mark_usage+0xd9/0x2a0 [ 44.885167][ C0] __lock_acquire+0x797/0x1570 [ 44.885314][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.885466][ C0] _raw_spin_lock+0x30/0x40 [ 44.885626][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.885854][ C0] call_timer_fn+0x13b/0x230 [ 44.886009][ C0] __run_timers+0x545/0x810 [ 44.886155][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.886300][ C0] __do_softirq+0x1f8/0x5df [ 44.886444][ C0] irq_exit_rcu+0x97/0xc0 [ 44.886619][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.886812][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.887114][ C0] default_idle+0xf/0x20 [ 44.887268][ C0] default_idle_call+0x6d/0xb0 [ 44.887422][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.887590][ C0] do_idle+0xf9/0x160 [ 44.887704][ C0] cpu_startup_entry+0x54/0x60 [ 44.887856][ C0] rest_init+0x14f/0x260 [ 44.888007][ C0] start_kernel+0x318/0x3d0 [ 44.888160][ C0] x86_64_start_reservations+0x18/0x30 [ 44.888408][ C0] x86_64_start_kernel+0xba/0x110 [ 44.888566][ C0] common_startup_64+0x12c/0x138 [ 44.888728][ C0] [ 44.888811][ C0] [ 44.888811][ C0] stack backtrace: [ 44.889001][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 44.889321][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.889730][ C0] Call Trace: [ 44.889922][ C0] [ 44.890052][ C0] dump_stack_lvl+0x82/0xd0 [ 44.890481][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.890740][ C0] ? common_startup_64+0x12c/0x138 [ 44.890897][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.891184][ C0] ? __pfx_usage_skip+0x10/0x10 [ 44.891340][ C0] ? __pfx_usage_match+0x10/0x10 [ 44.891496][ C0] ? arch_stack_walk+0x8c/0xf0 [ 44.891668][ C0] mark_lock_irq+0x4cd/0xa10 [ 44.891919][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.892079][ C0] ? stack_trace_save+0x94/0xd0 [ 44.892238][ C0] ? add_chain_cache+0x248/0x8b0 [ 44.892495][ C0] ? save_trace+0x8f/0x5b0 [ 44.892752][ C0] mark_lock+0x28d/0x3e0 [ 44.892871][ C0] mark_usage+0xd9/0x2a0 [ 44.892987][ C0] __lock_acquire+0x797/0x1570 [ 44.893141][ C0] ? __lock_acquire+0xaf0/0x1570 [ 44.893299][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.893699][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.893853][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.894081][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.894336][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 44.894490][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.894722][ C0] ? lock_acquire+0x32/0xc0 [ 44.894879][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.895207][ C0] _raw_spin_lock+0x30/0x40 [ 44.895356][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.895591][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.895823][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.896182][ C0] call_timer_fn+0x13b/0x230 [ 44.896337][ C0] ? call_timer_fn+0xe8/0x230 [ 44.896508][ C0] ? call_timer_fn+0xe8/0x230 [ 44.896665][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 44.896908][ C0] ? mark_lock+0x38/0x3e0 [ 44.897023][ C0] __run_timers+0x545/0x810 [ 44.897170][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.897430][ C0] ? __pfx___run_timers+0x10/0x10 [ 44.897684][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.897834][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.897990][ C0] ? lock_acquire+0x32/0xc0 [ 44.898135][ C0] ? run_timer_softirq+0xe0/0x1b0 [ 44.898387][ C0] run_timer_softirq+0xe8/0x1b0 [ 44.898537][ C0] __do_softirq+0x1f8/0x5df [ 44.898704][ C0] irq_exit_rcu+0x97/0xc0 [ 44.898815][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.899053][ C0] [ 44.899130][ C0] [ 44.899209][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.899488][ C0] RIP: 0010:default_idle+0xf/0x20 [ 44.899648][ 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 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 [ 44.900182][ C0] RSP: 0018:ffffffffac007e00 EFLAGS: 00000246 [ 44.900472][ C0] RAX: 00000000000b89c3 RBX: 1ffffffff5800fc2 RCX: ffffffffab10f9e5 [ 44.900707][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa8aaa4a4 [ 44.900928][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 44.901250][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 44.901478][ C0] R13: ffffffffac01d000 R14: dffffc0000000000 R15: 0000000000014770 [ 44.901728][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.901874][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 44.902209][ C0] default_idle_call+0x6d/0xb0 [ 44.902358][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.902519][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.902678][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.902930][ C0] do_idle+0xf9/0x160 [ 44.903046][ C0] cpu_startup_entry+0x54/0x60 [ 44.903193][ C0] rest_init+0x14f/0x260 [ 44.903308][ C0] start_kernel+0x318/0x3d0 [ 44.903459][ C0] x86_64_start_reservations+0x18/0x30 [ 44.903618][ C0] x86_64_start_kernel+0xba/0x110 [ 44.903771][ C0] common_startup_64+0x12c/0x138 [ 44.903925][ C0] [ 56.708747][ T627] br1: port 2(veth2) entered disabled state [ 56.808850][ T628] veth2: left allmulticast mode [ 56.809051][ T628] veth2: left promiscuous mode [ 56.809312][ T628] br1: port 2(veth2) entered disabled state [ 56.909447][ T629] br1: port 1(veth1) entered disabled state [ 57.005042][ T630] veth1: left allmulticast mode [ 57.005229][ T630] veth1: left promiscuous mode [ 57.005478][ T630] br1: port 1(veth1) entered disabled state