[ 29.272607][ T305] br1: port 1(veth1) entered blocking state [ 29.273097][ T305] br1: port 1(veth1) entered disabled state [ 29.273453][ T305] veth1: entered allmulticast mode [ 29.275469][ T305] veth1: entered promiscuous mode [ 29.283163][ T305] ip (305) used greatest stack depth: 23992 bytes left [ 29.387707][ T51] br1: port 1(veth1) entered blocking state [ 29.388086][ T51] br1: port 1(veth1) entered forwarding state [ 29.517374][ T307] br1: port 2(veth2) entered blocking state [ 29.519629][ T307] br1: port 2(veth2) entered disabled state [ 29.520039][ T307] veth2: entered allmulticast mode [ 29.523147][ T307] veth2: entered promiscuous mode [ 29.652949][ T49] br1: port 2(veth2) entered blocking state [ 29.653240][ T49] br1: port 2(veth2) entered forwarding state [ 30.026140][ T311] 8021q: 802.1Q VLAN Support v1.8 [ 31.017468][ T321] GACT probability NOT on [ 39.617895][ T362] Mirror/redirect action on [ 44.861146][ C1] [ 44.861306][ C1] ======================================================== [ 44.861515][ C1] WARNING: possible irq lock inversion dependency detected [ 44.861710][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 44.861841][ C1] -------------------------------------------------------- [ 44.862035][ C1] swapper/1/0 just changed the state of lock: [ 44.862218][ C1] ffff888006a12c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.862617][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.862814][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 44.862818][ C1] [ 44.862818][ C1] [ 44.862818][ C1] and interrupts could create inverse lock ordering between them. [ 44.862818][ C1] [ 44.863300][ C1] [ 44.863300][ C1] other info that might help us debug this: [ 44.863500][ C1] Chain exists of: [ 44.863500][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.863500][ C1] [ 44.863798][ C1] Possible interrupt unsafe locking scenario: [ 44.863798][ C1] [ 44.864001][ C1] CPU0 CPU1 [ 44.864136][ C1] ---- ---- [ 44.864267][ C1] lock(&p->alloc_lock); [ 44.864377][ C1] local_irq_disable(); [ 44.864540][ C1] lock(&br->lock); [ 44.864708][ C1] lock(lweventlist_lock); [ 44.864878][ C1] [ 44.864982][ C1] lock(&br->lock); [ 44.865090][ C1] [ 44.865090][ C1] *** DEADLOCK *** [ 44.865090][ C1] [ 44.865286][ C1] 1 lock held by swapper/1/0: [ 44.865425][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.865703][ C1] [ 44.865703][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 44.865940][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.866083][ C1] HARDIRQ-ON-W at: [ 44.866187][ C1] __lock_acquire+0x797/0x1570 [ 44.866369][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.866545][ C1] _raw_spin_lock+0x30/0x40 [ 44.866715][ C1] set_mems_allowed+0x1d/0x210 [ 44.866888][ C1] kernel_init_freeable+0x72/0x310 [ 44.867061][ C1] kernel_init+0x20/0x200 [ 44.867235][ C1] ret_from_fork+0x31/0x70 [ 44.867405][ C1] ret_from_fork_asm+0x1a/0x30 [ 44.867574][ C1] SOFTIRQ-ON-W at: [ 44.867678][ C1] __lock_acquire+0x797/0x1570 [ 44.867847][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.868021][ C1] _raw_spin_lock+0x30/0x40 [ 44.868188][ C1] set_mems_allowed+0x1d/0x210 [ 44.868354][ C1] kernel_init_freeable+0x72/0x310 [ 44.868528][ C1] kernel_init+0x20/0x200 [ 44.868700][ C1] ret_from_fork+0x31/0x70 [ 44.868873][ C1] ret_from_fork_asm+0x1a/0x30 [ 44.869041][ C1] INITIAL USE at: [ 44.869143][ C1] __lock_acquire+0x797/0x1570 [ 44.869309][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.869486][ C1] _raw_spin_lock+0x30/0x40 [ 44.869652][ C1] set_mems_allowed+0x1d/0x210 [ 44.869820][ C1] kernel_init_freeable+0x72/0x310 [ 44.869993][ C1] kernel_init+0x20/0x200 [ 44.870158][ C1] ret_from_fork+0x31/0x70 [ 44.870327][ C1] ret_from_fork_asm+0x1a/0x30 [ 44.870501][ C1] } [ 44.870570][ C1] ... key at: [] __key.387+0x0/0x40 [ 44.870778][ C1] ... acquired at: [ 44.870888][ C1] __lock_acquire+0xaf0/0x1570 [ 44.871023][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.871158][ C1] _raw_spin_lock+0x30/0x40 [ 44.871290][ C1] __get_task_comm+0x27/0x70 [ 44.871425][ C1] ref_tracker_alloc+0x2ee/0x490 [ 44.871567][ C1] linkwatch_fire_event+0x196/0x200 [ 44.871706][ C1] veth_newlink+0x367/0x830 [veth] [ 44.871845][ C1] rtnl_newlink_create+0x341/0x850 [ 44.871980][ C1] __rtnl_newlink+0xac9/0xd80 [ 44.872112][ C1] rtnl_newlink+0x63/0xa0 [ 44.872250][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.872381][ C1] netlink_rcv_skb+0x130/0x360 [ 44.872527][ C1] netlink_unicast+0x449/0x710 [ 44.872668][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.872802][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 44.872947][ C1] ___sys_sendmsg+0xee/0x170 [ 44.873081][ C1] __sys_sendmsg+0xcd/0x170 [ 44.873213][ C1] do_syscall_64+0xc6/0x1e0 [ 44.873354][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.873522][ C1] [ 44.873592][ C1] -> (lweventlist_lock){....}-{2:2} { [ 44.873732][ C1] INITIAL USE at: [ 44.873838][ C1] __lock_acquire+0x797/0x1570 [ 44.874010][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.874182][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.874356][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 44.874526][ C1] rtnl_getlink+0x4c9/0x970 [ 44.874692][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.874868][ C1] netlink_rcv_skb+0x130/0x360 [ 44.875035][ C1] netlink_unicast+0x449/0x710 [ 44.875203][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.875368][ C1] __sys_sendto+0x37d/0x410 [ 44.875533][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 44.875702][ C1] do_syscall_64+0xc6/0x1e0 [ 44.875877][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.876078][ C1] } [ 44.876145][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.876349][ C1] ... acquired at: [ 44.876452][ C1] __lock_acquire+0xaf0/0x1570 [ 44.876586][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.876726][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.876866][ C1] linkwatch_fire_event+0x74/0x200 [ 44.877011][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.877220][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.877417][ C1] dev_set_mac_address+0x28a/0x410 [ 44.877551][ C1] dev_set_mac_address_user+0x31/0x50 [ 44.877683][ C1] do_setlink+0x17b4/0x21e0 [ 44.877813][ C1] rtnl_setlink+0x1f7/0x310 [ 44.877944][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.878083][ C1] netlink_rcv_skb+0x130/0x360 [ 44.878221][ C1] netlink_unicast+0x449/0x710 [ 44.878358][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.878493][ C1] __sys_sendto+0x37d/0x410 [ 44.878626][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 44.878760][ C1] do_syscall_64+0xc6/0x1e0 [ 44.878895][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.879061][ C1] [ 44.879128][ C1] -> (&br->lock){+.-.}-{2:2} { [ 44.879272][ C1] HARDIRQ-ON-W at: [ 44.879375][ C1] __lock_acquire+0x797/0x1570 [ 44.879543][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.879714][ C1] _raw_spin_lock_bh+0x38/0x50 [ 44.879885][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 44.880122][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.880359][ C1] br_changelink+0x36c/0x1360 [bridge] [ 44.880567][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 44.880781][ C1] rtnl_newlink_create+0x341/0x850 [ 44.880951][ C1] __rtnl_newlink+0xac9/0xd80 [ 44.881119][ C1] rtnl_newlink+0x63/0xa0 [ 44.881286][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.881452][ C1] netlink_rcv_skb+0x130/0x360 [ 44.881631][ C1] netlink_unicast+0x449/0x710 [ 44.881801][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.881968][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 44.882134][ C1] ___sys_sendmsg+0xee/0x170 [ 44.882306][ C1] __sys_sendmsg+0xcd/0x170 [ 44.882482][ C1] do_syscall_64+0xc6/0x1e0 [ 44.882651][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.882859][ C1] IN-SOFTIRQ-W at: [ 44.882960][ C1] __lock_acquire+0x797/0x1570 [ 44.883127][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.883293][ C1] _raw_spin_lock+0x30/0x40 [ 44.883461][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.883695][ C1] call_timer_fn+0x13b/0x230 [ 44.883873][ C1] __run_timers+0x545/0x810 [ 44.884041][ C1] run_timer_softirq+0xe8/0x1b0 [ 44.884208][ C1] __do_softirq+0x1f8/0x5df [ 44.884379][ C1] irq_exit_rcu+0x97/0xc0 [ 44.884547][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.884746][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.884960][ C1] default_idle+0xf/0x20 [ 44.885125][ C1] default_idle_call+0x6d/0xb0 [ 44.885293][ C1] cpuidle_idle_call+0x1f4/0x280 [ 44.885460][ C1] do_idle+0xf9/0x160 [ 44.885593][ C1] cpu_startup_entry+0x54/0x60 [ 44.885759][ C1] start_secondary+0x21c/0x2b0 [ 44.885934][ C1] common_startup_64+0x12c/0x138 [ 44.886103][ C1] INITIAL USE at: [ 44.886202][ C1] __lock_acquire+0x797/0x1570 [ 44.886371][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.886539][ C1] _raw_spin_lock_bh+0x38/0x50 [ 44.886708][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 44.886948][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 44.887197][ C1] br_changelink+0x36c/0x1360 [bridge] [ 44.887407][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 44.887611][ C1] rtnl_newlink_create+0x341/0x850 [ 44.887789][ C1] __rtnl_newlink+0xac9/0xd80 [ 44.887959][ C1] rtnl_newlink+0x63/0xa0 [ 44.888129][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.888301][ C1] netlink_rcv_skb+0x130/0x360 [ 44.888470][ C1] netlink_unicast+0x449/0x710 [ 44.888638][ C1] netlink_sendmsg+0x723/0xbe0 [ 44.888809][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 44.888985][ C1] ___sys_sendmsg+0xee/0x170 [ 44.889158][ C1] __sys_sendmsg+0xcd/0x170 [ 44.889326][ C1] do_syscall_64+0xc6/0x1e0 [ 44.889579][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.889777][ C1] } [ 44.889846][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.890125][ C1] ... acquired at: [ 44.890307][ C1] mark_lock+0x28d/0x3e0 [ 44.890452][ C1] mark_usage+0xd9/0x2a0 [ 44.890598][ C1] __lock_acquire+0x797/0x1570 [ 44.890744][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.890974][ C1] _raw_spin_lock+0x30/0x40 [ 44.891122][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.891342][ C1] call_timer_fn+0x13b/0x230 [ 44.891491][ C1] __run_timers+0x545/0x810 [ 44.891637][ C1] run_timer_softirq+0xe8/0x1b0 [ 44.891781][ C1] __do_softirq+0x1f8/0x5df [ 44.891927][ C1] irq_exit_rcu+0x97/0xc0 [ 44.892072][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.892343][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.892537][ C1] default_idle+0xf/0x20 [ 44.892683][ C1] default_idle_call+0x6d/0xb0 [ 44.892828][ C1] cpuidle_idle_call+0x1f4/0x280 [ 44.893061][ C1] do_idle+0xf9/0x160 [ 44.893175][ C1] cpu_startup_entry+0x54/0x60 [ 44.893312][ C1] start_secondary+0x21c/0x2b0 [ 44.893445][ C1] common_startup_64+0x12c/0x138 [ 44.893585][ C1] [ 44.893652][ C1] [ 44.893652][ C1] stack backtrace: [ 44.893815][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 44.894023][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.894316][ C1] Call Trace: [ 44.894423][ C1] [ 44.894511][ C1] dump_stack_lvl+0x82/0xd0 [ 44.894707][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.894973][ C1] ? common_startup_64+0x12c/0x138 [ 44.895122][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.895304][ C1] ? __pfx_usage_skip+0x10/0x10 [ 44.895448][ C1] ? __pfx_usage_match+0x10/0x10 [ 44.895596][ C1] ? arch_stack_walk+0x8c/0xf0 [ 44.895742][ C1] mark_lock_irq+0x4cd/0xa10 [ 44.895888][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.896040][ C1] ? stack_trace_save+0x94/0xd0 [ 44.896192][ C1] ? save_trace+0x8f/0x5b0 [ 44.896345][ C1] mark_lock+0x28d/0x3e0 [ 44.896455][ C1] ? __pfx_validate_chain+0x10/0x10 [ 44.896603][ C1] mark_usage+0xd9/0x2a0 [ 44.896713][ C1] __lock_acquire+0x797/0x1570 [ 44.896940][ C1] ? __lock_acquire+0xaf0/0x1570 [ 44.897087][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.897345][ C1] lock_acquire.part.0+0xeb/0x330 [ 44.897497][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.897793][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.897940][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 44.898085][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.898306][ C1] ? lock_acquire+0x32/0xc0 [ 44.898534][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.898755][ C1] _raw_spin_lock+0x30/0x40 [ 44.898901][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.899192][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.899406][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.899656][ C1] call_timer_fn+0x13b/0x230 [ 44.899800][ C1] ? call_timer_fn+0xe8/0x230 [ 44.900022][ C1] ? call_timer_fn+0xe8/0x230 [ 44.900164][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 44.900313][ C1] ? mark_lock+0x38/0x3e0 [ 44.900427][ C1] __run_timers+0x545/0x810 [ 44.900572][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.900825][ C1] ? __pfx___run_timers+0x10/0x10 [ 44.900967][ C1] ? trace_rcu_dyntick+0x112/0x180 [ 44.901114][ C1] ? do_raw_spin_lock+0x131/0x270 [ 44.901261][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.901412][ C1] ? lock_acquire+0x32/0xc0 [ 44.901559][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 44.901707][ C1] run_timer_softirq+0xe8/0x1b0 [ 44.901931][ C1] __do_softirq+0x1f8/0x5df [ 44.902074][ C1] irq_exit_rcu+0x97/0xc0 [ 44.902185][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.902329][ C1] [ 44.902405][ C1] [ 44.902494][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.902761][ C1] RIP: 0010:default_idle+0xf/0x20 [ 44.902919][ 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 [ 44.903513][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000242 [ 44.903700][ C1] RAX: 0000000000095615 RBX: 1ffff92000029fc1 RCX: ffffffff9ad0f9e5 [ 44.903914][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff986aa4a4 [ 44.904213][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005f1709c [ 44.904428][ C1] R10: ffff88802f8b84e3 R11: ffff88802f8ad9b0 R12: 0000000000000000 [ 44.904643][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 44.904941][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.905083][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 44.905234][ C1] default_idle_call+0x6d/0xb0 [ 44.905456][ C1] cpuidle_idle_call+0x1f4/0x280 [ 44.905602][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.905750][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.905898][ C1] do_idle+0xf9/0x160 [ 44.906009][ C1] cpu_startup_entry+0x54/0x60 [ 44.906229][ C1] start_secondary+0x21c/0x2b0 [ 44.906375][ C1] ? __pfx_start_secondary+0x10/0x10 [ 44.906528][ C1] common_startup_64+0x12c/0x138 [ 44.906676][ C1] [ 75.648352][ T534] br1: port 1(veth1) entered disabled state [ 75.751776][ T535] br1: port 2(veth2) entered disabled state [ 75.860346][ T536] veth2: left allmulticast mode [ 75.860511][ T536] veth2: left promiscuous mode [ 75.860756][ T536] br1: port 2(veth2) entered disabled state [ 75.861803][ T536] veth1: left allmulticast mode [ 75.861946][ T536] veth1: left promiscuous mode [ 75.862182][ T536] br1: port 1(veth1) entered disabled state