[ 25.348948][ T264] ip (264) used greatest stack depth: 23696 bytes left [ 26.471962][ T275] 8021q: 802.1Q VLAN Support v1.8 [ 28.008921][ T290] br0: port 1(veth1) entered blocking state [ 28.009280][ T290] br0: port 1(veth1) entered disabled state [ 28.009584][ T290] veth1: entered allmulticast mode [ 28.012057][ T290] veth1: entered promiscuous mode [ 28.138536][ T292] br0: port 2(veth2) entered blocking state [ 28.138789][ T292] br0: port 2(veth2) entered disabled state [ 28.139272][ T292] veth2: entered allmulticast mode [ 28.141996][ T292] veth2: entered promiscuous mode [ 28.365632][ T49] br0: port 1(veth1) entered blocking state [ 28.365981][ T49] br0: port 1(veth1) entered forwarding state [ 28.482566][ T49] br0: port 2(veth2) entered blocking state [ 28.482890][ T49] br0: port 2(veth2) entered forwarding state [ 43.818987][ C1] [ 43.819140][ C1] ======================================================== [ 43.819352][ C1] WARNING: possible irq lock inversion dependency detected [ 43.819561][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 43.819707][ C1] -------------------------------------------------------- [ 43.819908][ C1] swapper/1/0 just changed the state of lock: [ 43.820071][ C1] ffff888007b2ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.820448][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 43.820645][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 43.820651][ C1] [ 43.820651][ C1] [ 43.820651][ C1] and interrupts could create inverse lock ordering between them. [ 43.820651][ C1] [ 43.821287][ C1] [ 43.821287][ C1] other info that might help us debug this: [ 43.821501][ C1] Chain exists of: [ 43.821501][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 43.821501][ C1] [ 43.821821][ C1] Possible interrupt unsafe locking scenario: [ 43.821821][ C1] [ 43.822042][ C1] CPU0 CPU1 [ 43.822184][ C1] ---- ---- [ 43.822323][ C1] lock(&p->alloc_lock); [ 43.822429][ C1] local_irq_disable(); [ 43.822601][ C1] lock(&br->lock); [ 43.822791][ C1] lock(lweventlist_lock); [ 43.822956][ C1] [ 43.823063][ C1] lock(&br->lock); [ 43.823165][ C1] [ 43.823165][ C1] *** DEADLOCK *** [ 43.823165][ C1] [ 43.823368][ C1] 1 lock held by swapper/1/0: [ 43.823513][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 43.823816][ C1] [ 43.823816][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 43.824063][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 43.824210][ C1] HARDIRQ-ON-W at: [ 43.824313][ C1] __lock_acquire+0x797/0x1570 [ 43.824496][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.824682][ C1] _raw_spin_lock+0x30/0x40 [ 43.824853][ C1] set_mems_allowed+0x1d/0x210 [ 43.825033][ C1] kernel_init_freeable+0x72/0x310 [ 43.825205][ C1] kernel_init+0x20/0x200 [ 43.825381][ C1] ret_from_fork+0x31/0x70 [ 43.825555][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.825736][ C1] SOFTIRQ-ON-W at: [ 43.825855][ C1] __lock_acquire+0x797/0x1570 [ 43.826022][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.826200][ C1] _raw_spin_lock+0x30/0x40 [ 43.826373][ C1] set_mems_allowed+0x1d/0x210 [ 43.826544][ C1] kernel_init_freeable+0x72/0x310 [ 43.826739][ C1] kernel_init+0x20/0x200 [ 43.826924][ C1] ret_from_fork+0x31/0x70 [ 43.827096][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.827271][ C1] INITIAL USE at: [ 43.827372][ C1] __lock_acquire+0x797/0x1570 [ 43.827549][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.827764][ C1] _raw_spin_lock+0x30/0x40 [ 43.827932][ C1] set_mems_allowed+0x1d/0x210 [ 43.828097][ C1] kernel_init_freeable+0x72/0x310 [ 43.828265][ C1] kernel_init+0x20/0x200 [ 43.828432][ C1] ret_from_fork+0x31/0x70 [ 43.828598][ C1] ret_from_fork_asm+0x1a/0x30 [ 43.828773][ C1] } [ 43.828844][ C1] ... key at: [] __key.387+0x0/0x40 [ 43.829044][ C1] ... acquired at: [ 43.829144][ C1] __lock_acquire+0xaf0/0x1570 [ 43.829279][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.829413][ C1] _raw_spin_lock+0x30/0x40 [ 43.829547][ C1] __get_task_comm+0x27/0x70 [ 43.829691][ C1] ref_tracker_alloc+0x2ee/0x490 [ 43.829836][ C1] linkwatch_fire_event+0x196/0x200 [ 43.829974][ C1] veth_newlink+0x367/0x830 [veth] [ 43.830117][ C1] rtnl_newlink_create+0x341/0x850 [ 43.830249][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.830384][ C1] rtnl_newlink+0x63/0xa0 [ 43.830517][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.830658][ C1] netlink_rcv_skb+0x130/0x360 [ 43.830804][ C1] netlink_unicast+0x449/0x710 [ 43.830937][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.831075][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.831211][ C1] ___sys_sendmsg+0xee/0x170 [ 43.831345][ C1] __sys_sendmsg+0xcd/0x170 [ 43.831478][ C1] do_syscall_64+0xc6/0x1e0 [ 43.831611][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.831814][ C1] [ 43.831883][ C1] -> (lweventlist_lock){....}-{2:2} { [ 43.832020][ C1] INITIAL USE at: [ 43.832120][ C1] __lock_acquire+0x797/0x1570 [ 43.832292][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.832462][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.832631][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 43.832806][ C1] rtnl_getlink+0x4c9/0x970 [ 43.832973][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.833142][ C1] netlink_rcv_skb+0x130/0x360 [ 43.833308][ C1] netlink_unicast+0x449/0x710 [ 43.833477][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.833663][ C1] __sys_sendto+0x37d/0x410 [ 43.833832][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.834014][ C1] do_syscall_64+0xc6/0x1e0 [ 43.834201][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.834401][ C1] } [ 43.834478][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 43.834699][ C1] ... acquired at: [ 43.834798][ C1] __lock_acquire+0xaf0/0x1570 [ 43.834940][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.835078][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 43.835211][ C1] linkwatch_fire_event+0x74/0x200 [ 43.835360][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 43.835576][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 43.835809][ C1] dev_set_mac_address+0x28a/0x410 [ 43.835943][ C1] dev_set_mac_address_user+0x31/0x50 [ 43.836089][ C1] do_setlink+0x17b4/0x21e0 [ 43.836222][ C1] rtnl_setlink+0x1f7/0x310 [ 43.836366][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.836503][ C1] netlink_rcv_skb+0x130/0x360 [ 43.836655][ C1] netlink_unicast+0x449/0x710 [ 43.836804][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.836936][ C1] __sys_sendto+0x37d/0x410 [ 43.837069][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 43.837210][ C1] do_syscall_64+0xc6/0x1e0 [ 43.837349][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.837528][ C1] [ 43.837595][ C1] -> (&br->lock){+.-.}-{2:2} { [ 43.837763][ C1] HARDIRQ-ON-W at: [ 43.837865][ C1] __lock_acquire+0x797/0x1570 [ 43.838043][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.838211][ C1] _raw_spin_lock_bh+0x38/0x50 [ 43.838392][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 43.838646][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 43.838903][ C1] br_changelink+0x36c/0x1360 [bridge] [ 43.839113][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 43.839330][ C1] rtnl_newlink_create+0x341/0x850 [ 43.839505][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.839689][ C1] rtnl_newlink+0x63/0xa0 [ 43.839889][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.840056][ C1] netlink_rcv_skb+0x130/0x360 [ 43.840226][ C1] netlink_unicast+0x449/0x710 [ 43.840393][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.840557][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.840745][ C1] ___sys_sendmsg+0xee/0x170 [ 43.840916][ C1] __sys_sendmsg+0xcd/0x170 [ 43.841086][ C1] do_syscall_64+0xc6/0x1e0 [ 43.841254][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.841458][ C1] IN-SOFTIRQ-W at: [ 43.841561][ C1] __lock_acquire+0x797/0x1570 [ 43.841742][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.841919][ C1] _raw_spin_lock+0x30/0x40 [ 43.842086][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.842337][ C1] call_timer_fn+0x13b/0x230 [ 43.842510][ C1] __run_timers+0x545/0x810 [ 43.842695][ C1] run_timer_softirq+0xe8/0x1b0 [ 43.842883][ C1] __do_softirq+0x1f8/0x5df [ 43.843057][ C1] irq_exit_rcu+0x97/0xc0 [ 43.843269][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.843553][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.843863][ C1] default_idle+0xf/0x20 [ 43.844125][ C1] default_idle_call+0x6d/0xb0 [ 43.844387][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.844642][ C1] do_idle+0xf9/0x160 [ 43.844853][ C1] cpu_startup_entry+0x54/0x60 [ 43.845119][ C1] start_secondary+0x21c/0x2b0 [ 43.845377][ C1] common_startup_64+0x12c/0x138 [ 43.845577][ C1] INITIAL USE at: [ 43.845696][ C1] __lock_acquire+0x797/0x1570 [ 43.845865][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.846044][ C1] _raw_spin_lock_bh+0x38/0x50 [ 43.846212][ C1] recalculate_group_addr+0x55/0x130 [bridge] [ 43.846464][ C1] br_vlan_filter_toggle+0x77/0x130 [bridge] [ 43.846817][ C1] br_changelink+0x36c/0x1360 [bridge] [ 43.847021][ C1] br_dev_newlink+0xa5/0x100 [bridge] [ 43.847224][ C1] rtnl_newlink_create+0x341/0x850 [ 43.847468][ C1] __rtnl_newlink+0xac9/0xd80 [ 43.847633][ C1] rtnl_newlink+0x63/0xa0 [ 43.847831][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 43.848000][ C1] netlink_rcv_skb+0x130/0x360 [ 43.848242][ C1] netlink_unicast+0x449/0x710 [ 43.848407][ C1] netlink_sendmsg+0x723/0xbe0 [ 43.848572][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 43.848822][ C1] ___sys_sendmsg+0xee/0x170 [ 43.848989][ C1] __sys_sendmsg+0xcd/0x170 [ 43.849155][ C1] do_syscall_64+0xc6/0x1e0 [ 43.849400][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 43.849611][ C1] } [ 43.849691][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 43.849965][ C1] ... acquired at: [ 43.850140][ C1] mark_lock+0x28d/0x3e0 [ 43.850272][ C1] mark_usage+0xd9/0x2a0 [ 43.850403][ C1] __lock_acquire+0x797/0x1570 [ 43.850535][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.850754][ C1] _raw_spin_lock+0x30/0x40 [ 43.850887][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.851089][ C1] call_timer_fn+0x13b/0x230 [ 43.851222][ C1] __run_timers+0x545/0x810 [ 43.851430][ C1] run_timer_softirq+0xe8/0x1b0 [ 43.851563][ C1] __do_softirq+0x1f8/0x5df [ 43.851710][ C1] irq_exit_rcu+0x97/0xc0 [ 43.851848][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.852094][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.852258][ C1] default_idle+0xf/0x20 [ 43.852389][ C1] default_idle_call+0x6d/0xb0 [ 43.852520][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.852928][ C1] do_idle+0xf9/0x160 [ 43.853089][ C1] cpu_startup_entry+0x54/0x60 [ 43.853299][ C1] start_secondary+0x21c/0x2b0 [ 43.853511][ C1] common_startup_64+0x12c/0x138 [ 43.853676][ C1] [ 43.853824][ C1] [ 43.853824][ C1] stack backtrace: [ 43.853989][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 43.854189][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.854561][ C1] Call Trace: [ 43.854670][ C1] [ 43.854741][ C1] dump_stack_lvl+0x82/0xd0 [ 43.854882][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 43.855125][ C1] ? common_startup_64+0x12c/0x138 [ 43.855261][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 43.855425][ C1] ? __pfx_usage_skip+0x10/0x10 [ 43.855556][ C1] ? __pfx_usage_match+0x10/0x10 [ 43.855769][ C1] ? arch_stack_walk+0x8c/0xf0 [ 43.855904][ C1] mark_lock_irq+0x4cd/0xa10 [ 43.856037][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 43.856169][ C1] ? stack_trace_save+0x94/0xd0 [ 43.856307][ C1] ? add_chain_cache+0x248/0x8b0 [ 43.856516][ C1] ? save_trace+0x8f/0x5b0 [ 43.856656][ C1] mark_lock+0x28d/0x3e0 [ 43.856765][ C1] mark_usage+0xd9/0x2a0 [ 43.856866][ C1] __lock_acquire+0x797/0x1570 [ 43.857074][ C1] ? __lock_acquire+0xaf0/0x1570 [ 43.857206][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.857438][ C1] lock_acquire.part.0+0xeb/0x330 [ 43.857573][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.857864][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.857997][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 43.858128][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.858327][ C1] ? lock_acquire+0x32/0xc0 [ 43.858534][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.858742][ C1] _raw_spin_lock+0x30/0x40 [ 43.858878][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.859091][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 43.859380][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.859623][ C1] call_timer_fn+0x13b/0x230 [ 43.859764][ C1] ? call_timer_fn+0xe8/0x230 [ 43.859984][ C1] ? call_timer_fn+0xe8/0x230 [ 43.860119][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 43.860254][ C1] ? mark_lock+0x38/0x3e0 [ 43.860358][ C1] __run_timers+0x545/0x810 [ 43.860490][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 43.860736][ C1] ? __pfx___run_timers+0x10/0x10 [ 43.860871][ C1] ? do_raw_spin_lock+0x131/0x270 [ 43.861003][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 43.861209][ C1] ? lock_acquire+0x32/0xc0 [ 43.861339][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 43.861475][ C1] run_timer_softirq+0xe8/0x1b0 [ 43.861607][ C1] __do_softirq+0x1f8/0x5df [ 43.861760][ C1] irq_exit_rcu+0x97/0xc0 [ 43.861938][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 43.862070][ C1] [ 43.862139][ C1] [ 43.862207][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.862371][ C1] RIP: 0010:default_idle+0xf/0x20 [ 43.862587][ 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 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 [ 43.863062][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 43.863310][ C1] RAX: 000000000007d44d RBX: 1ffff92000029fc1 RCX: ffffffff8a10e9d5 [ 43.863508][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff87aaa4a4 [ 43.863713][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 43.864069][ C1] R10: ffff8880360b84e3 R11: ffff8880360ad9b0 R12: 0000000000000000 [ 43.864267][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 43.864543][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 43.864687][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 43.864823][ C1] default_idle_call+0x6d/0xb0 [ 43.864955][ C1] cpuidle_idle_call+0x1f4/0x280 [ 43.865089][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 43.865297][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 43.865430][ C1] do_idle+0xf9/0x160 [ 43.865529][ C1] cpu_startup_entry+0x54/0x60 [ 43.865669][ C1] start_secondary+0x21c/0x2b0 [ 43.865880][ C1] ? __pfx_start_secondary+0x10/0x10 [ 43.866013][ C1] common_startup_64+0x12c/0x138 [ 43.866148][ C1] [ 57.636210][ T352] GACT probability NOT on [ 88.263618][ T530] br1: port 1(veth0) entered blocking state [ 88.263861][ T530] br1: port 1(veth0) entered disabled state [ 88.264053][ T530] veth0: entered allmulticast mode [ 88.265510][ T530] veth0: entered promiscuous mode [ 88.371498][ T532] br1: port 1(veth0) entered blocking state [ 88.371776][ T532] br1: port 1(veth0) entered forwarding state [ 90.747199][ T536] veth0: left allmulticast mode [ 90.747371][ T536] veth0: left promiscuous mode [ 90.747623][ T536] br1: port 1(veth0) entered disabled state [ 103.307196][ T621] br0: vlan filtering disabled, automatically disabling multicast vlan snooping [ 103.701686][ T628] br0: port 2(veth2) entered disabled state [ 103.802766][ T629] br0: port 1(veth1) entered disabled state [ 103.902552][ T630] veth2: left allmulticast mode [ 103.902730][ T630] veth2: left promiscuous mode [ 103.903314][ T630] br0: port 2(veth2) entered disabled state [ 103.904461][ T630] veth1: left allmulticast mode [ 103.904607][ T630] veth1: left promiscuous mode [ 103.904852][ T630] br0: port 1(veth1) entered disabled state