[ 28.525059][ T293] br1: port 1(veth1) entered blocking state [ 28.525425][ T293] br1: port 1(veth1) entered disabled state [ 28.525711][ T293] veth1: entered allmulticast mode [ 28.527954][ T293] veth1: entered promiscuous mode [ 28.646563][ T7] br1: port 1(veth1) entered blocking state [ 28.646903][ T7] br1: port 1(veth1) entered forwarding state [ 28.754556][ T295] br1: port 2(veth2) entered blocking state [ 28.754796][ T295] br1: port 2(veth2) entered disabled state [ 28.755205][ T295] veth2: entered allmulticast mode [ 28.756962][ T295] veth2: entered promiscuous mode [ 28.864517][ T49] br1: port 2(veth2) entered blocking state [ 28.864757][ T49] br1: port 2(veth2) entered forwarding state [ 38.231930][ T327] GACT probability NOT on [ 43.827170][ C2] [ 43.827289][ C2] ======================================================== [ 43.827496][ C2] WARNING: possible irq lock inversion dependency detected [ 43.827706][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 43.827853][ C2] -------------------------------------------------------- [ 43.828056][ C2] swapper/2/0 just changed the state of lock: [ 43.828238][ C2] ffff888008aaac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.828606][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.828822][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 43.828826][ C2] [ 43.828826][ C2] [ 43.828826][ C2] and interrupts could create inverse lock ordering between them. [ 43.828826][ C2] [ 43.829331][ C2] [ 43.829331][ C2] other info that might help us debug this: [ 43.829533][ C2] Chain exists of: [ 43.829533][ C2] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 43.829533][ C2] [ 43.829865][ C2] Possible interrupt unsafe locking scenario: [ 43.829865][ C2] [ 43.830077][ C2] CPU0 CPU1 [ 43.830215][ C2] ---- ---- [ 43.830361][ C2] lock(&p->alloc_lock); [ 43.830466][ C2] local_irq_disable(); [ 43.830659][ C2] lock(&br->lock); [ 43.830850][ C2] lock(lweventlist_lock); [ 43.831024][ C2] [ 43.831130][ C2] lock(&br->lock); [ 43.831241][ C2] [ 43.831241][ C2] *** DEADLOCK *** [ 43.831241][ C2] [ 43.831464][ C2] 1 lock held by swapper/2/0: [ 43.831608][ C2] #0: ffffc90000230b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 43.831899][ C2] [ 43.831899][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 43.832134][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.832278][ C2] HARDIRQ-ON-W at: [ 43.832383][ C2] __lock_acquire+0x797/0x1570 [ 43.832576][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.832755][ C2] _raw_spin_lock+0x30/0x40 [ 43.832937][ C2] set_mems_allowed+0x1d/0x210 [ 43.833115][ C2] kernel_init_freeable+0x72/0x310 [ 43.833298][ C2] kernel_init+0x20/0x200 [ 43.833478][ C2] ret_from_fork+0x31/0x70 [ 43.833669][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.833856][ C2] SOFTIRQ-ON-W at: [ 43.833959][ C2] __lock_acquire+0x797/0x1570 [ 43.834137][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.834313][ C2] _raw_spin_lock+0x30/0x40 [ 43.834484][ C2] set_mems_allowed+0x1d/0x210 [ 43.834666][ C2] kernel_init_freeable+0x72/0x310 [ 43.834846][ C2] kernel_init+0x20/0x200 [ 43.835018][ C2] ret_from_fork+0x31/0x70 [ 43.835194][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.835372][ C2] INITIAL USE at: [ 43.835476][ C2] __lock_acquire+0x797/0x1570 [ 43.835661][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.835840][ C2] _raw_spin_lock+0x30/0x40 [ 43.836023][ C2] set_mems_allowed+0x1d/0x210 [ 43.836195][ C2] kernel_init_freeable+0x72/0x310 [ 43.836370][ C2] kernel_init+0x20/0x200 [ 43.836548][ C2] ret_from_fork+0x31/0x70 [ 43.836727][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.836903][ C2] } [ 43.836982][ C2] ... key at: [] __key.387+0x0/0x40 [ 43.837190][ C2] ... acquired at: [ 43.837294][ C2] __lock_acquire+0xaf0/0x1570 [ 43.837437][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.837578][ C2] _raw_spin_lock+0x30/0x40 [ 43.837718][ C2] __get_task_comm+0x27/0x70 [ 43.837864][ C2] ref_tracker_alloc+0x2ee/0x490 [ 43.838009][ C2] linkwatch_fire_event+0x196/0x200 [ 43.838149][ C2] veth_newlink+0x367/0x830 [veth] [ 43.838296][ C2] rtnl_newlink_create+0x341/0x850 [ 43.838432][ C2] __rtnl_newlink+0xac9/0xd80 [ 43.838570][ C2] rtnl_newlink+0x63/0xa0 [ 43.838713][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.838850][ C2] netlink_rcv_skb+0x130/0x360 [ 43.838995][ C2] netlink_unicast+0x449/0x710 [ 43.839132][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.839272][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.839417][ C2] ___sys_sendmsg+0xee/0x170 [ 43.839559][ C2] __sys_sendmsg+0xcd/0x170 [ 43.839702][ C2] do_syscall_64+0xc6/0x1e0 [ 43.839844][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.840015][ C2] [ 43.840088][ C2] -> (lweventlist_lock){....}-{2:2} { [ 43.840234][ C2] INITIAL USE at: [ 43.840338][ C2] __lock_acquire+0x797/0x1570 [ 43.840512][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.840698][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.840869][ C2] linkwatch_sync_dev+0x29/0x1f0 [ 43.841040][ C2] rtnl_getlink+0x4c9/0x970 [ 43.841210][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.841398][ C2] netlink_rcv_skb+0x130/0x360 [ 43.841573][ C2] netlink_unicast+0x449/0x710 [ 43.841754][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.841932][ C2] __sys_sendto+0x37d/0x410 [ 43.842115][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.842295][ C2] do_syscall_64+0xc6/0x1e0 [ 43.842467][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.842679][ C2] } [ 43.842749][ C2] ... key at: [] lweventlist_lock+0x18/0x60 [ 43.842964][ C2] ... acquired at: [ 43.843071][ C2] __lock_acquire+0xaf0/0x1570 [ 43.843208][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.843346][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.843490][ C2] linkwatch_fire_event+0x74/0x200 [ 43.843629][ C2] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 43.843849][ C2] br_set_mac_address+0x1f3/0x260 [bridge] [ 43.844064][ C2] dev_set_mac_address+0x28a/0x410 [ 43.844211][ C2] dev_set_mac_address_user+0x31/0x50 [ 43.844351][ C2] do_setlink+0x17b4/0x21e0 [ 43.844491][ C2] rtnl_setlink+0x1f7/0x310 [ 43.844674][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.844811][ C2] netlink_rcv_skb+0x130/0x360 [ 43.844952][ C2] netlink_unicast+0x449/0x710 [ 43.845091][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.845229][ C2] __sys_sendto+0x37d/0x410 [ 43.845397][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.845537][ C2] do_syscall_64+0xc6/0x1e0 [ 43.845675][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.845861][ C2] [ 43.845935][ C2] -> (&br->lock){+.-.}-{2:2} { [ 43.846085][ C2] HARDIRQ-ON-W at: [ 43.846189][ C2] __lock_acquire+0x797/0x1570 [ 43.846368][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.846547][ C2] _raw_spin_lock_bh+0x38/0x50 [ 43.846721][ C2] recalculate_group_addr+0x55/0x130 [bridge] [ 43.846975][ C2] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 43.847228][ C2] br_changelink+0x36c/0x1360 [bridge] [ 43.847438][ C2] br_dev_newlink+0xa5/0x100 [bridge] [ 43.847655][ C2] rtnl_newlink_create+0x341/0x850 [ 43.847826][ C2] __rtnl_newlink+0xac9/0xd80 [ 43.847998][ C2] rtnl_newlink+0x63/0xa0 [ 43.848192][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.848372][ C2] netlink_rcv_skb+0x130/0x360 [ 43.848544][ C2] netlink_unicast+0x449/0x710 [ 43.848719][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.848999][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.849180][ C2] ___sys_sendmsg+0xee/0x170 [ 43.849357][ C2] __sys_sendmsg+0xcd/0x170 [ 43.849536][ C2] do_syscall_64+0xc6/0x1e0 [ 43.849715][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.849927][ C2] IN-SOFTIRQ-W at: [ 43.850031][ C2] __lock_acquire+0x797/0x1570 [ 43.850298][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.850472][ C2] _raw_spin_lock+0x30/0x40 [ 43.850651][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.850991][ C2] call_timer_fn+0x13b/0x230 [ 43.851174][ C2] __run_timers+0x545/0x810 [ 43.851370][ C2] timer_expire_remote+0x9b/0xe0 [ 43.851554][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 43.851728][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.851898][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 43.852073][ C2] __do_softirq+0x1f8/0x5df [ 43.852326][ C2] irq_exit_rcu+0x97/0xc0 [ 43.852500][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.852705][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.853006][ C2] default_idle+0xf/0x20 [ 43.853178][ C2] default_idle_call+0x6d/0xb0 [ 43.853348][ C2] cpuidle_idle_call+0x1f4/0x280 [ 43.853526][ C2] do_idle+0xf9/0x160 [ 43.853663][ C2] cpu_startup_entry+0x54/0x60 [ 43.853835][ C2] start_secondary+0x21c/0x2b0 [ 43.854008][ C2] common_startup_64+0x12c/0x138 [ 43.854262][ C2] INITIAL USE at: [ 43.854366][ C2] __lock_acquire+0x797/0x1570 [ 43.854546][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.854719][ C2] _raw_spin_lock_bh+0x38/0x50 [ 43.854974][ C2] recalculate_group_addr+0x55/0x130 [bridge] [ 43.855219][ C2] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 43.855462][ C2] br_changelink+0x36c/0x1360 [bridge] [ 43.855672][ C2] br_dev_newlink+0xa5/0x100 [bridge] [ 43.855884][ C2] rtnl_newlink_create+0x341/0x850 [ 43.856054][ C2] __rtnl_newlink+0xac9/0xd80 [ 43.856308][ C2] rtnl_newlink+0x63/0xa0 [ 43.856478][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.856648][ C2] netlink_rcv_skb+0x130/0x360 [ 43.856820][ C2] netlink_unicast+0x449/0x710 [ 43.857079][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.857255][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.857426][ C2] ___sys_sendmsg+0xee/0x170 [ 43.857597][ C2] __sys_sendmsg+0xcd/0x170 [ 43.857768][ C2] do_syscall_64+0xc6/0x1e0 [ 43.857940][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.858224][ C2] } [ 43.858293][ C2] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 43.858572][ C2] ... acquired at: [ 43.858676][ C2] mark_lock+0x28d/0x3e0 [ 43.858899][ C2] mark_usage+0xd9/0x2a0 [ 43.859035][ C2] __lock_acquire+0x797/0x1570 [ 43.859171][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.859307][ C2] _raw_spin_lock+0x30/0x40 [ 43.859452][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.859663][ C2] call_timer_fn+0x13b/0x230 [ 43.859801][ C2] __run_timers+0x545/0x810 [ 43.859936][ C2] timer_expire_remote+0x9b/0xe0 [ 43.860073][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 43.860291][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.860427][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 43.860563][ C2] __do_softirq+0x1f8/0x5df [ 43.860700][ C2] irq_exit_rcu+0x97/0xc0 [ 43.860923][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.861091][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.861263][ C2] default_idle+0xf/0x20 [ 43.861415][ C2] default_idle_call+0x6d/0xb0 [ 43.861636][ C2] cpuidle_idle_call+0x1f4/0x280 [ 43.861773][ C2] do_idle+0xf9/0x160 [ 43.861875][ C2] cpu_startup_entry+0x54/0x60 [ 43.862011][ C2] start_secondary+0x21c/0x2b0 [ 43.862227][ C2] common_startup_64+0x12c/0x138 [ 43.862373][ C2] [ 43.862441][ C2] [ 43.862441][ C2] stack backtrace: [ 43.862609][ C2] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.9.0-rc1-virtme #1 [ 43.862906][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.863206][ C2] Call Trace: [ 43.863310][ C2] [ 43.863383][ C2] dump_stack_lvl+0x82/0xd0 [ 43.863530][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.863700][ C2] ? common_startup_64+0x12c/0x138 [ 43.863840][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.864009][ C2] ? __pfx_usage_skip+0x10/0x10 [ 43.864224][ C2] ? __pfx_usage_match+0x10/0x10 [ 43.864364][ C2] ? arch_stack_walk+0x8c/0xf0 [ 43.864502][ C2] mark_lock_irq+0x4cd/0xa10 [ 43.864638][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.864860][ C2] ? stack_trace_save+0x94/0xd0 [ 43.865003][ C2] ? add_chain_cache+0x248/0x8b0 [ 43.865140][ C2] ? save_trace+0x8f/0x5b0 [ 43.865276][ C2] mark_lock+0x28d/0x3e0 [ 43.865460][ C2] mark_usage+0xd9/0x2a0 [ 43.865563][ C2] __lock_acquire+0x797/0x1570 [ 43.865700][ C2] ? __lock_acquire+0xaf0/0x1570 [ 43.865838][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.866170][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.866308][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.866515][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.866653][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 43.866791][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.866997][ C2] ? lock_acquire+0x32/0xc0 [ 43.867132][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.867342][ C2] _raw_spin_lock+0x30/0x40 [ 43.867559][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.867764][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.867970][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.868286][ C2] call_timer_fn+0x13b/0x230 [ 43.868422][ C2] ? call_timer_fn+0xe8/0x230 [ 43.868562][ C2] ? call_timer_fn+0xe8/0x230 [ 43.868702][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 43.868839][ C2] ? mark_lock+0x38/0x3e0 [ 43.869030][ C2] __run_timers+0x545/0x810 [ 43.869172][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.869410][ C2] ? __pfx___run_timers+0x10/0x10 [ 43.869550][ C2] ? __lock_release+0x103/0x460 [ 43.869687][ C2] ? do_raw_spin_lock+0x131/0x270 [ 43.869827][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.869968][ C2] ? lock_acquire+0x32/0xc0 [ 43.870107][ C2] ? timer_expire_remote+0x93/0xe0 [ 43.870330][ C2] timer_expire_remote+0x9b/0xe0 [ 43.870471][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 43.870609][ C2] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 43.870781][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.871011][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 43.871153][ C2] ? do_raw_spin_lock+0x131/0x270 [ 43.871294][ C2] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 43.871446][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.871583][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 43.871756][ C2] __do_softirq+0x1f8/0x5df [ 43.871897][ C2] irq_exit_rcu+0x97/0xc0 [ 43.872001][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.872305][ C2] [ 43.872387][ C2] [ 43.872470][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.872640][ C2] RIP: 0010:default_idle+0xf/0x20 [ 43.872784][ C2] 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 [ 43.873356][ C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000242 [ 43.873544][ C2] RAX: 0000000000108a3d RBX: 1ffff9200002bfc1 RCX: ffffffffafd0e9d5 [ 43.873834][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffad6aa4a4 [ 43.874037][ C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2709c [ 43.874240][ C2] R10: ffff8880361384e3 R11: ffff88803613dc80 R12: 0000000000000000 [ 43.874525][ C2] R13: ffff888001b7c5c0 R14: dffffc0000000000 R15: 0000000000000000 [ 43.874733][ C2] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 43.874871][ C2] ? cpuidle_idle_call+0x1f4/0x280 [ 43.875099][ C2] default_idle_call+0x6d/0xb0 [ 43.875235][ C2] cpuidle_idle_call+0x1f4/0x280 [ 43.875371][ C2] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 43.875508][ C2] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 43.875725][ C2] do_idle+0xf9/0x160 [ 43.875828][ C2] cpu_startup_entry+0x54/0x60 [ 43.875967][ C2] start_secondary+0x21c/0x2b0 [ 43.876104][ C2] ? __pfx_start_secondary+0x10/0x10 [ 43.876241][ C2] common_startup_64+0x12c/0x138 [ 43.876460][ C2] [ 134.056193][ T1618] br1: port 2(veth2) entered disabled state [ 134.156319][ T1619] veth2: left allmulticast mode [ 134.156518][ T1619] veth2: left promiscuous mode [ 134.156788][ T1619] br1: port 2(veth2) entered disabled state [ 134.288825][ T1620] br1: port 1(veth1) entered disabled state [ 134.380030][ T1621] veth1: left allmulticast mode [ 134.380221][ T1621] veth1: left promiscuous mode [ 134.380484][ T1621] br1: port 1(veth1) entered disabled state