[ 26.561267][ T275] 8021q: 802.1Q VLAN Support v1.8 [ 28.131882][ T291] br0: port 1(veth1) entered blocking state [ 28.133111][ T291] br0: port 1(veth1) entered disabled state [ 28.133667][ T291] veth1: entered allmulticast mode [ 28.135545][ T291] veth1: entered promiscuous mode [ 28.269319][ T293] br0: port 2(veth2) entered blocking state [ 28.269671][ T293] br0: port 2(veth2) entered disabled state [ 28.269902][ T293] veth2: entered allmulticast mode [ 28.272388][ T293] veth2: entered promiscuous mode [ 28.516028][ T49] br0: port 1(veth1) entered blocking state [ 28.516436][ T49] br0: port 1(veth1) entered forwarding state [ 28.637847][ T51] br0: port 2(veth2) entered blocking state [ 28.638096][ T51] br0: port 2(veth2) entered forwarding state [ 43.817352][ C2] [ 43.817564][ C2] ======================================================== [ 43.817782][ C2] WARNING: possible irq lock inversion dependency detected [ 43.817989][ C2] 6.9.0-rc1-virtme #1 Not tainted [ 43.818134][ C2] -------------------------------------------------------- [ 43.818336][ C2] swapper/2/0 just changed the state of lock: [ 43.818503][ C2] ffff888006342c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.818860][ C2] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.819062][ C2] (&p->alloc_lock){+.+.}-{2:2} [ 43.819066][ C2] [ 43.819066][ C2] [ 43.819066][ C2] and interrupts could create inverse lock ordering between them. [ 43.819066][ C2] [ 43.819566][ C2] [ 43.819566][ C2] other info that might help us debug this: [ 43.819772][ C2] Chain exists of: [ 43.819772][ C2] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 43.819772][ C2] [ 43.820090][ C2] Possible interrupt unsafe locking scenario: [ 43.820090][ C2] [ 43.820290][ C2] CPU0 CPU1 [ 43.820429][ C2] ---- ---- [ 43.820573][ C2] lock(&p->alloc_lock); [ 43.820679][ C2] local_irq_disable(); [ 43.820847][ C2] lock(&br->lock); [ 43.821017][ C2] lock(lweventlist_lock); [ 43.821188][ C2] [ 43.821291][ C2] lock(&br->lock); [ 43.821395][ C2] [ 43.821395][ C2] *** DEADLOCK *** [ 43.821395][ C2] [ 43.821598][ C2] 1 lock held by swapper/2/0: [ 43.821736][ C2] #0: ffffc90000230b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 43.822023][ C2] [ 43.822023][ C2] the shortest dependencies between 2nd lock and 1st lock: [ 43.822260][ C2] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.822403][ C2] HARDIRQ-ON-W at: [ 43.822508][ C2] __lock_acquire+0x797/0x1570 [ 43.822686][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.822860][ C2] _raw_spin_lock+0x30/0x40 [ 43.823040][ C2] set_mems_allowed+0x1d/0x210 [ 43.823224][ C2] kernel_init_freeable+0x72/0x310 [ 43.823405][ C2] kernel_init+0x20/0x200 [ 43.823577][ C2] ret_from_fork+0x31/0x70 [ 43.823762][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.823941][ C2] SOFTIRQ-ON-W at: [ 43.824046][ C2] __lock_acquire+0x797/0x1570 [ 43.824224][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.824396][ C2] _raw_spin_lock+0x30/0x40 [ 43.824585][ C2] set_mems_allowed+0x1d/0x210 [ 43.824766][ C2] kernel_init_freeable+0x72/0x310 [ 43.824936][ C2] kernel_init+0x20/0x200 [ 43.825113][ C2] ret_from_fork+0x31/0x70 [ 43.825294][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.825465][ C2] INITIAL USE at: [ 43.825567][ C2] __lock_acquire+0x797/0x1570 [ 43.825748][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.825921][ C2] _raw_spin_lock+0x30/0x40 [ 43.826093][ C2] set_mems_allowed+0x1d/0x210 [ 43.826271][ C2] kernel_init_freeable+0x72/0x310 [ 43.826446][ C2] kernel_init+0x20/0x200 [ 43.826631][ C2] ret_from_fork+0x31/0x70 [ 43.826806][ C2] ret_from_fork_asm+0x1a/0x30 [ 43.826983][ C2] } [ 43.827057][ C2] ... key at: [] __key.387+0x0/0x40 [ 43.827271][ C2] ... acquired at: [ 43.827374][ C2] __lock_acquire+0xaf0/0x1570 [ 43.827522][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.827661][ C2] _raw_spin_lock+0x30/0x40 [ 43.827801][ C2] __get_task_comm+0x27/0x70 [ 43.827943][ C2] ref_tracker_alloc+0x2ee/0x490 [ 43.828080][ C2] linkwatch_fire_event+0x196/0x200 [ 43.828218][ C2] veth_newlink+0x367/0x830 [veth] [ 43.828364][ C2] rtnl_newlink_create+0x341/0x850 [ 43.828507][ C2] __rtnl_newlink+0xac9/0xd80 [ 43.828643][ C2] rtnl_newlink+0x63/0xa0 [ 43.828787][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.828925][ C2] netlink_rcv_skb+0x130/0x360 [ 43.829068][ C2] netlink_unicast+0x449/0x710 [ 43.829203][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.829345][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.829485][ C2] ___sys_sendmsg+0xee/0x170 [ 43.829627][ C2] __sys_sendmsg+0xcd/0x170 [ 43.829765][ C2] do_syscall_64+0xc6/0x1e0 [ 43.829907][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.830084][ C2] [ 43.830154][ C2] -> (lweventlist_lock){....}-{2:2} { [ 43.830298][ C2] INITIAL USE at: [ 43.830406][ C2] __lock_acquire+0x797/0x1570 [ 43.830579][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.830757][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.830933][ C2] linkwatch_sync_dev+0x29/0x1f0 [ 43.831106][ C2] rtnl_getlink+0x4c9/0x970 [ 43.831285][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.831455][ C2] netlink_rcv_skb+0x130/0x360 [ 43.831629][ C2] netlink_unicast+0x449/0x710 [ 43.831804][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.831975][ C2] __sys_sendto+0x37d/0x410 [ 43.832152][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.832327][ C2] do_syscall_64+0xc6/0x1e0 [ 43.832500][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.832711][ C2] } [ 43.832779][ C2] ... key at: [] lweventlist_lock+0x18/0x60 [ 43.832987][ C2] ... acquired at: [ 43.833089][ C2] __lock_acquire+0xaf0/0x1570 [ 43.833232][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.833371][ C2] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.833508][ C2] linkwatch_fire_event+0x74/0x200 [ 43.833647][ C2] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 43.833861][ C2] br_set_mac_address+0x1f3/0x260 [bridge] [ 43.834064][ C2] dev_set_mac_address+0x28a/0x410 [ 43.834201][ C2] dev_set_mac_address_user+0x31/0x50 [ 43.834340][ C2] do_setlink+0x17b4/0x21e0 [ 43.834482][ C2] rtnl_setlink+0x1f7/0x310 [ 43.834639][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.834776][ C2] netlink_rcv_skb+0x130/0x360 [ 43.834921][ C2] netlink_unicast+0x449/0x710 [ 43.835061][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.835200][ C2] __sys_sendto+0x37d/0x410 [ 43.835342][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 43.835481][ C2] do_syscall_64+0xc6/0x1e0 [ 43.835621][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.835799][ C2] [ 43.835868][ C2] -> (&br->lock){+.-.}-{2:2} { [ 43.836015][ C2] HARDIRQ-ON-W at: [ 43.836121][ C2] __lock_acquire+0x797/0x1570 [ 43.836302][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.836474][ C2] _raw_spin_lock_bh+0x38/0x50 [ 43.836652][ C2] recalculate_group_addr+0x55/0x130 [bridge] [ 43.836897][ C2] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 43.837146][ C2] br_changelink+0x36c/0x1360 [bridge] [ 43.837356][ C2] br_dev_newlink+0xa5/0x100 [bridge] [ 43.837565][ C2] rtnl_newlink_create+0x341/0x850 [ 43.837736][ C2] __rtnl_newlink+0xac9/0xd80 [ 43.837908][ C2] rtnl_newlink+0x63/0xa0 [ 43.838082][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.838257][ C2] netlink_rcv_skb+0x130/0x360 [ 43.838429][ C2] netlink_unicast+0x449/0x710 [ 43.838603][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.838775][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.838949][ C2] ___sys_sendmsg+0xee/0x170 [ 43.839121][ C2] __sys_sendmsg+0xcd/0x170 [ 43.839296][ C2] do_syscall_64+0xc6/0x1e0 [ 43.839472][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.839680][ C2] IN-SOFTIRQ-W at: [ 43.839788][ C2] __lock_acquire+0x797/0x1570 [ 43.839967][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.840139][ C2] _raw_spin_lock+0x30/0x40 [ 43.840311][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.840555][ C2] call_timer_fn+0x13b/0x230 [ 43.840729][ C2] __run_timers+0x545/0x810 [ 43.840901][ C2] timer_expire_remote+0x9b/0xe0 [ 43.841076][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 43.841249][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.841482][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 43.841770][ C2] __do_softirq+0x1f8/0x5df [ 43.842061][ C2] irq_exit_rcu+0x97/0xc0 [ 43.842350][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.842693][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.843049][ C2] default_idle+0xf/0x20 [ 43.843340][ C2] default_idle_call+0x6d/0xb0 [ 43.843630][ C2] cpuidle_idle_call+0x1f4/0x280 [ 43.843931][ C2] do_idle+0xf9/0x160 [ 43.844164][ C2] cpu_startup_entry+0x54/0x60 [ 43.844447][ C2] start_secondary+0x21c/0x2b0 [ 43.844644][ C2] common_startup_64+0x12c/0x138 [ 43.844818][ C2] INITIAL USE at: [ 43.844926][ C2] __lock_acquire+0x797/0x1570 [ 43.845107][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.845282][ C2] _raw_spin_lock_bh+0x38/0x50 [ 43.845459][ C2] recalculate_group_addr+0x55/0x130 [bridge] [ 43.845710][ C2] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 43.846043][ C2] br_changelink+0x36c/0x1360 [bridge] [ 43.846258][ C2] br_dev_newlink+0xa5/0x100 [bridge] [ 43.846475][ C2] rtnl_newlink_create+0x341/0x850 [ 43.846648][ C2] __rtnl_newlink+0xac9/0xd80 [ 43.846902][ C2] rtnl_newlink+0x63/0xa0 [ 43.847080][ C2] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.847251][ C2] netlink_rcv_skb+0x130/0x360 [ 43.847511][ C2] netlink_unicast+0x449/0x710 [ 43.847685][ C2] netlink_sendmsg+0x723/0xbe0 [ 43.847863][ C2] ____sys_sendmsg+0x7b2/0xa10 [ 43.848035][ C2] ___sys_sendmsg+0xee/0x170 [ 43.848288][ C2] __sys_sendmsg+0xcd/0x170 [ 43.848461][ C2] do_syscall_64+0xc6/0x1e0 [ 43.848633][ C2] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.848924][ C2] } [ 43.848999][ C2] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 43.849279][ C2] ... acquired at: [ 43.849381][ C2] mark_lock+0x28d/0x3e0 [ 43.849678][ C2] mark_usage+0xd9/0x2a0 [ 43.849814][ C2] __lock_acquire+0x797/0x1570 [ 43.849950][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.850089][ C2] _raw_spin_lock+0x30/0x40 [ 43.850321][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.850539][ C2] call_timer_fn+0x13b/0x230 [ 43.850676][ C2] __run_timers+0x545/0x810 [ 43.850819][ C2] timer_expire_remote+0x9b/0xe0 [ 43.850956][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 43.851105][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.851248][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 43.851385][ C2] __do_softirq+0x1f8/0x5df [ 43.851521][ C2] irq_exit_rcu+0x97/0xc0 [ 43.851665][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.851839][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.852009][ C2] default_idle+0xf/0x20 [ 43.852233][ C2] default_idle_call+0x6d/0xb0 [ 43.852369][ C2] cpuidle_idle_call+0x1f4/0x280 [ 43.852513][ C2] do_idle+0xf9/0x160 [ 43.852616][ C2] cpu_startup_entry+0x54/0x60 [ 43.852756][ C2] start_secondary+0x21c/0x2b0 [ 43.852900][ C2] common_startup_64+0x12c/0x138 [ 43.853041][ C2] [ 43.853110][ C2] [ 43.853110][ C2] stack backtrace: [ 43.853284][ C2] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 6.9.0-rc1-virtme #1 [ 43.853493][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.853799][ C2] Call Trace: [ 43.853903][ C2] [ 43.854057][ C2] dump_stack_lvl+0x82/0xd0 [ 43.854199][ C2] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.854373][ C2] ? common_startup_64+0x12c/0x138 [ 43.854511][ C2] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.854767][ C2] ? __pfx_usage_skip+0x10/0x10 [ 43.854903][ C2] ? __pfx_usage_match+0x10/0x10 [ 43.855041][ C2] ? arch_stack_walk+0x8c/0xf0 [ 43.855178][ C2] mark_lock_irq+0x4cd/0xa10 [ 43.855401][ C2] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.855537][ C2] ? stack_trace_save+0x94/0xd0 [ 43.855674][ C2] ? add_chain_cache+0x248/0x8b0 [ 43.855812][ C2] ? save_trace+0x8f/0x5b0 [ 43.855950][ C2] mark_lock+0x28d/0x3e0 [ 43.856133][ C2] mark_usage+0xd9/0x2a0 [ 43.856236][ C2] __lock_acquire+0x797/0x1570 [ 43.856375][ C2] ? __lock_acquire+0xaf0/0x1570 [ 43.856511][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.856832][ C2] lock_acquire.part.0+0xeb/0x330 [ 43.856969][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.857175][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.857312][ C2] ? trace_lock_acquire+0x135/0x1c0 [ 43.857530][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.857736][ C2] ? lock_acquire+0x32/0xc0 [ 43.857872][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.858084][ C2] _raw_spin_lock+0x30/0x40 [ 43.858303][ C2] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.858510][ C2] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.858716][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.858954][ C2] call_timer_fn+0x13b/0x230 [ 43.859090][ C2] ? call_timer_fn+0xe8/0x230 [ 43.859230][ C2] ? call_timer_fn+0xe8/0x230 [ 43.859376][ C2] ? __pfx_call_timer_fn+0x10/0x10 [ 43.859512][ C2] ? mark_lock+0x38/0x3e0 [ 43.859624][ C2] __run_timers+0x545/0x810 [ 43.859763][ C2] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.860006][ C2] ? __pfx___run_timers+0x10/0x10 [ 43.860320][ C2] ? __lock_release+0x103/0x460 [ 43.860466][ C2] ? do_raw_spin_lock+0x131/0x270 [ 43.860601][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.860740][ C2] ? lock_acquire+0x32/0xc0 [ 43.860877][ C2] ? timer_expire_remote+0x93/0xe0 [ 43.861020][ C2] timer_expire_remote+0x9b/0xe0 [ 43.861159][ C2] tmigr_handle_remote_cpu+0x270/0x430 [ 43.861300][ C2] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 43.861472][ C2] tmigr_handle_remote_up+0x19f/0x2e0 [ 43.861614][ C2] tmigr_handle_remote+0x21d/0x3a0 [ 43.861758][ C2] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 43.861898][ C2] __do_softirq+0x1f8/0x5df [ 43.862040][ C2] irq_exit_rcu+0x97/0xc0 [ 43.862225][ C2] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.862365][ C2] [ 43.862435][ C2] [ 43.862504][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.862679][ C2] RIP: 0010:default_idle+0xf/0x20 [ 43.862913][ 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 [ 43.863405][ C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000246 [ 43.863664][ C2] RAX: 00000000000d3969 RBX: 1ffff9200002bfc1 RCX: ffffffffa610e9d5 [ 43.863870][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa3aaa4a4 [ 43.864073][ C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2709c [ 43.864368][ C2] R10: ffff8880361384e3 R11: ffff88803612d9b0 R12: 0000000000000000 [ 43.864585][ C2] R13: ffff888001b7c5c0 R14: dffffc0000000000 R15: 0000000000000000 [ 43.864796][ C2] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 43.864933][ C2] ? cpuidle_idle_call+0x1f4/0x280 [ 43.865074][ C2] default_idle_call+0x6d/0xb0 [ 43.865212][ C2] cpuidle_idle_call+0x1f4/0x280 [ 43.865349][ C2] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 43.865485][ C2] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 43.865622][ C2] do_idle+0xf9/0x160 [ 43.865724][ C2] cpu_startup_entry+0x54/0x60 [ 43.865860][ C2] start_secondary+0x21c/0x2b0 [ 43.866078][ C2] ? __pfx_start_secondary+0x10/0x10 [ 43.866215][ C2] common_startup_64+0x12c/0x138 [ 43.866354][ C2] [ 57.736530][ T353] GACT probability NOT on [ 88.614542][ T530] br1: port 1(veth0) entered blocking state [ 88.614776][ T530] br1: port 1(veth0) entered disabled state [ 88.614977][ T530] veth0: entered allmulticast mode [ 88.616867][ T530] veth0: entered promiscuous mode [ 88.720403][ T533] br1: port 1(veth0) entered blocking state [ 88.720654][ T533] br1: port 1(veth0) entered forwarding state [ 91.086129][ T537] veth0: left allmulticast mode [ 91.086297][ T537] veth0: left promiscuous mode [ 91.086541][ T537] br1: port 1(veth0) entered disabled state [ 103.400828][ T621] br0: vlan filtering disabled, automatically disabling multicast vlan snooping [ 103.783801][ T627] br0: port 2(veth2) entered disabled state [ 103.879287][ T628] br0: port 1(veth1) entered disabled state [ 103.975902][ T629] veth2: left allmulticast mode [ 103.976069][ T629] veth2: left promiscuous mode [ 103.977351][ T629] br0: port 2(veth2) entered disabled state [ 103.978436][ T629] veth1: left allmulticast mode [ 103.978574][ T629] veth1: left promiscuous mode [ 103.978808][ T629] br0: port 1(veth1) entered disabled state