[ 29.436462][ T287] br1: port 1(veth1) entered blocking state [ 29.436916][ T287] br1: port 1(veth1) entered disabled state [ 29.437444][ T287] veth1: entered allmulticast mode [ 29.439405][ T287] veth1: entered promiscuous mode [ 29.681796][ T290] br1: port 2(veth2) entered blocking state [ 29.682218][ T290] br1: port 2(veth2) entered disabled state [ 29.682587][ T290] veth2: entered allmulticast mode [ 29.684542][ T290] veth2: entered promiscuous mode [ 29.909033][ T292] br1: port 2(veth2) entered blocking state [ 29.909402][ T292] br1: port 2(veth2) entered forwarding state [ 29.910116][ T292] br1: port 1(veth1) entered blocking state [ 29.910362][ T292] br1: port 1(veth1) entered forwarding state [ 36.871703][ T317] GACT probability NOT on [ 45.375292][ C1] [ 45.375402][ C1] ======================================================== [ 45.375613][ C1] WARNING: possible irq lock inversion dependency detected [ 45.375810][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 45.375941][ C1] -------------------------------------------------------- [ 45.376138][ C1] swapper/1/0 just changed the state of lock: [ 45.376311][ C1] ffff8880077eac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.376657][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 45.376869][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 45.376874][ C1] [ 45.376874][ C1] [ 45.376874][ C1] and interrupts could create inverse lock ordering between them. [ 45.376874][ C1] [ 45.377363][ C1] [ 45.377363][ C1] other info that might help us debug this: [ 45.377557][ C1] Chain exists of: [ 45.377557][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 45.377557][ C1] [ 45.377860][ C1] Possible interrupt unsafe locking scenario: [ 45.377860][ C1] [ 45.378057][ C1] CPU0 CPU1 [ 45.378202][ C1] ---- ---- [ 45.378338][ C1] lock(&p->alloc_lock); [ 45.378438][ C1] local_irq_disable(); [ 45.378609][ C1] lock(&br->lock); [ 45.378777][ C1] lock(lweventlist_lock); [ 45.378944][ C1] [ 45.379049][ C1] lock(&br->lock); [ 45.379153][ C1] [ 45.379153][ C1] *** DEADLOCK *** [ 45.379153][ C1] [ 45.379356][ C1] 1 lock held by swapper/1/0: [ 45.379527][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 45.379866][ C1] [ 45.379866][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 45.380114][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 45.380265][ C1] HARDIRQ-ON-W at: [ 45.380381][ C1] __lock_acquire+0x797/0x1570 [ 45.380593][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.380782][ C1] _raw_spin_lock+0x30/0x40 [ 45.381012][ C1] set_mems_allowed+0x1d/0x210 [ 45.381217][ C1] kernel_init_freeable+0x72/0x310 [ 45.381454][ C1] kernel_init+0x20/0x200 [ 45.381652][ C1] ret_from_fork+0x31/0x70 [ 45.381854][ C1] ret_from_fork_asm+0x1a/0x30 [ 45.382067][ C1] SOFTIRQ-ON-W at: [ 45.382194][ C1] __lock_acquire+0x797/0x1570 [ 45.382394][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.382607][ C1] _raw_spin_lock+0x30/0x40 [ 45.382834][ C1] set_mems_allowed+0x1d/0x210 [ 45.383020][ C1] kernel_init_freeable+0x72/0x310 [ 45.383220][ C1] kernel_init+0x20/0x200 [ 45.383401][ C1] ret_from_fork+0x31/0x70 [ 45.383594][ C1] ret_from_fork_asm+0x1a/0x30 [ 45.383790][ C1] INITIAL USE at: [ 45.383919][ C1] __lock_acquire+0x797/0x1570 [ 45.384114][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.384323][ C1] _raw_spin_lock+0x30/0x40 [ 45.384508][ C1] set_mems_allowed+0x1d/0x210 [ 45.384700][ C1] kernel_init_freeable+0x72/0x310 [ 45.384885][ C1] kernel_init+0x20/0x200 [ 45.385076][ C1] ret_from_fork+0x31/0x70 [ 45.385269][ C1] ret_from_fork_asm+0x1a/0x30 [ 45.385452][ C1] } [ 45.385548][ C1] ... key at: [] __key.387+0x0/0x40 [ 45.385755][ C1] ... acquired at: [ 45.385857][ C1] __lock_acquire+0xaf0/0x1570 [ 45.386001][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.386143][ C1] _raw_spin_lock+0x30/0x40 [ 45.386278][ C1] __get_task_comm+0x27/0x70 [ 45.386415][ C1] ref_tracker_alloc+0x2ee/0x490 [ 45.386551][ C1] linkwatch_fire_event+0x196/0x200 [ 45.386690][ C1] veth_newlink+0x367/0x830 [veth] [ 45.386847][ C1] rtnl_newlink_create+0x341/0x850 [ 45.386995][ C1] __rtnl_newlink+0xac9/0xd80 [ 45.387133][ C1] rtnl_newlink+0x63/0xa0 [ 45.387270][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.387412][ C1] netlink_rcv_skb+0x130/0x360 [ 45.387554][ C1] netlink_unicast+0x449/0x710 [ 45.387696][ C1] netlink_sendmsg+0x723/0xbe0 [ 45.387832][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 45.387974][ C1] ___sys_sendmsg+0xee/0x170 [ 45.388113][ C1] __sys_sendmsg+0xcd/0x170 [ 45.388251][ C1] do_syscall_64+0xc6/0x1e0 [ 45.388392][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.388562][ C1] [ 45.388632][ C1] -> (lweventlist_lock){....}-{2:2} { [ 45.388773][ C1] INITIAL USE at: [ 45.388874][ C1] __lock_acquire+0x797/0x1570 [ 45.389044][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.389214][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.389465][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 45.389634][ C1] rtnl_getlink+0x4c9/0x970 [ 45.389805][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.389985][ C1] netlink_rcv_skb+0x130/0x360 [ 45.390261][ C1] netlink_unicast+0x449/0x710 [ 45.390447][ C1] netlink_sendmsg+0x723/0xbe0 [ 45.390714][ C1] __sys_sendto+0x37d/0x410 [ 45.390895][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 45.391080][ C1] do_syscall_64+0xc6/0x1e0 [ 45.391265][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.391579][ C1] } [ 45.391654][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 45.391869][ C1] ... acquired at: [ 45.391979][ C1] __lock_acquire+0xaf0/0x1570 [ 45.392129][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.392355][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 45.392514][ C1] linkwatch_fire_event+0x74/0x200 [ 45.392655][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 45.392874][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 45.393185][ C1] dev_set_mac_address+0x28a/0x410 [ 45.393342][ C1] dev_set_mac_address_user+0x31/0x50 [ 45.393485][ C1] do_setlink+0x17b4/0x21e0 [ 45.393669][ C1] rtnl_setlink+0x1f7/0x310 [ 45.393898][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.394041][ C1] netlink_rcv_skb+0x130/0x360 [ 45.394202][ C1] netlink_unicast+0x449/0x710 [ 45.394341][ C1] netlink_sendmsg+0x723/0xbe0 [ 45.394586][ C1] __sys_sendto+0x37d/0x410 [ 45.394725][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 45.394864][ C1] do_syscall_64+0xc6/0x1e0 [ 45.395000][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.395251][ C1] [ 45.395338][ C1] -> (&br->lock){+.-.}-{2:2} { [ 45.395477][ C1] HARDIRQ-ON-W at: [ 45.395585][ C1] __lock_acquire+0x797/0x1570 [ 45.395770][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.396053][ C1] _raw_spin_lock_bh+0x38/0x50 [ 45.396259][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 45.396570][ C1] dev_set_mac_address+0x28a/0x410 [ 45.396860][ C1] dev_set_mac_address_user+0x31/0x50 [ 45.397061][ C1] do_setlink+0x17b4/0x21e0 [ 45.397260][ C1] rtnl_setlink+0x1f7/0x310 [ 45.397543][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.397734][ C1] netlink_rcv_skb+0x130/0x360 [ 45.397951][ C1] netlink_unicast+0x449/0x710 [ 45.398244][ C1] netlink_sendmsg+0x723/0xbe0 [ 45.398514][ C1] __sys_sendto+0x37d/0x410 [ 45.398703][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 45.398894][ C1] do_syscall_64+0xc6/0x1e0 [ 45.399189][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.399429][ C1] IN-SOFTIRQ-W at: [ 45.399544][ C1] __lock_acquire+0x797/0x1570 [ 45.399729][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.400011][ C1] _raw_spin_lock+0x30/0x40 [ 45.400205][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.400488][ C1] call_timer_fn+0x13b/0x230 [ 45.400861][ C1] __run_timers+0x545/0x810 [ 45.401049][ C1] run_timer_softirq+0xe8/0x1b0 [ 45.401238][ C1] __do_softirq+0x1f8/0x5df [ 45.401499][ C1] irq_exit_rcu+0x97/0xc0 [ 45.401693][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.401914][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.402252][ C1] default_idle+0xf/0x20 [ 45.402452][ C1] default_idle_call+0x6d/0xb0 [ 45.402645][ C1] cpuidle_idle_call+0x1f4/0x280 [ 45.402817][ C1] do_idle+0xf9/0x160 [ 45.403041][ C1] cpu_startup_entry+0x54/0x60 [ 45.403205][ C1] start_secondary+0x21c/0x2b0 [ 45.403467][ C1] common_startup_64+0x12c/0x138 [ 45.403636][ C1] INITIAL USE at: [ 45.403742][ C1] __lock_acquire+0x797/0x1570 [ 45.403913][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.404090][ C1] _raw_spin_lock_bh+0x38/0x50 [ 45.404365][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 45.404640][ C1] dev_set_mac_address+0x28a/0x410 [ 45.404808][ C1] dev_set_mac_address_user+0x31/0x50 [ 45.404983][ C1] do_setlink+0x17b4/0x21e0 [ 45.405155][ C1] rtnl_setlink+0x1f7/0x310 [ 45.405321][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.405583][ C1] netlink_rcv_skb+0x130/0x360 [ 45.405772][ C1] netlink_unicast+0x449/0x710 [ 45.405940][ C1] netlink_sendmsg+0x723/0xbe0 [ 45.406111][ C1] __sys_sendto+0x37d/0x410 [ 45.406368][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 45.406535][ C1] do_syscall_64+0xc6/0x1e0 [ 45.406732][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.406953][ C1] } [ 45.407021][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 45.407369][ C1] ... acquired at: [ 45.407466][ C1] mark_lock+0x28d/0x3e0 [ 45.407601][ C1] mark_usage+0xd9/0x2a0 [ 45.407736][ C1] __lock_acquire+0x797/0x1570 [ 45.407949][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.408098][ C1] _raw_spin_lock+0x30/0x40 [ 45.408236][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.408542][ C1] call_timer_fn+0x13b/0x230 [ 45.408721][ C1] __run_timers+0x545/0x810 [ 45.408871][ C1] run_timer_softirq+0xe8/0x1b0 [ 45.409033][ C1] __do_softirq+0x1f8/0x5df [ 45.409263][ C1] irq_exit_rcu+0x97/0xc0 [ 45.409415][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.409599][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.409874][ C1] default_idle+0xf/0x20 [ 45.410023][ C1] default_idle_call+0x6d/0xb0 [ 45.410174][ C1] cpuidle_idle_call+0x1f4/0x280 [ 45.410318][ C1] do_idle+0xf9/0x160 [ 45.410438][ C1] cpu_startup_entry+0x54/0x60 [ 45.410648][ C1] start_secondary+0x21c/0x2b0 [ 45.410783][ C1] common_startup_64+0x12c/0x138 [ 45.410918][ C1] [ 45.410989][ C1] [ 45.410989][ C1] stack backtrace: [ 45.411155][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 45.411444][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.411736][ C1] Call Trace: [ 45.411837][ C1] [ 45.411914][ C1] dump_stack_lvl+0x82/0xd0 [ 45.412087][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 45.412253][ C1] ? common_startup_64+0x12c/0x138 [ 45.412408][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 45.412595][ C1] ? __pfx_usage_skip+0x10/0x10 [ 45.412745][ C1] ? __pfx_usage_match+0x10/0x10 [ 45.412897][ C1] ? arch_stack_walk+0x8c/0xf0 [ 45.413066][ C1] mark_lock_irq+0x4cd/0xa10 [ 45.413373][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 45.413508][ C1] ? stack_trace_save+0x94/0xd0 [ 45.413641][ C1] ? add_chain_cache+0x248/0x8b0 [ 45.413774][ C1] ? save_trace+0x8f/0x5b0 [ 45.413907][ C1] mark_lock+0x28d/0x3e0 [ 45.414014][ C1] mark_usage+0xd9/0x2a0 [ 45.414115][ C1] __lock_acquire+0x797/0x1570 [ 45.414250][ C1] ? __lock_acquire+0xaf0/0x1570 [ 45.414388][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.414643][ C1] lock_acquire.part.0+0xeb/0x330 [ 45.414780][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.415071][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 45.415213][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 45.415366][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.415632][ C1] ? lock_acquire+0x32/0xc0 [ 45.415791][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.416083][ C1] _raw_spin_lock+0x30/0x40 [ 45.416229][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.416523][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 45.416730][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.417103][ C1] call_timer_fn+0x13b/0x230 [ 45.417240][ C1] ? call_timer_fn+0xe8/0x230 [ 45.417379][ C1] ? call_timer_fn+0xe8/0x230 [ 45.417515][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 45.417736][ C1] ? mark_lock+0x38/0x3e0 [ 45.417846][ C1] __run_timers+0x545/0x810 [ 45.417995][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 45.418239][ C1] ? __pfx___run_timers+0x10/0x10 [ 45.418452][ C1] ? do_raw_spin_lock+0x131/0x270 [ 45.418595][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 45.418815][ C1] ? lock_acquire+0x32/0xc0 [ 45.418954][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 45.419098][ C1] run_timer_softirq+0xe8/0x1b0 [ 45.419237][ C1] __do_softirq+0x1f8/0x5df [ 45.419458][ C1] irq_exit_rcu+0x97/0xc0 [ 45.419565][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.419703][ C1] [ 45.419777][ C1] [ 45.419845][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.420005][ C1] RIP: 0010:default_idle+0xf/0x20 [ 45.420152][ 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 [ 45.420733][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000242 [ 45.420910][ C1] RAX: 00000000000a7101 RBX: 1ffff92000029fc1 RCX: ffffffff9350e9d5 [ 45.421200][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff90eaa4a4 [ 45.421414][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 45.421612][ C1] R10: ffff8880360b84e3 R11: ffff8880360bdc80 R12: 0000000000000000 [ 45.421899][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 45.422104][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 45.422241][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 45.422539][ C1] default_idle_call+0x6d/0xb0 [ 45.422673][ C1] cpuidle_idle_call+0x1f4/0x280 [ 45.422814][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 45.422949][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 45.423180][ C1] do_idle+0xf9/0x160 [ 45.423292][ C1] cpu_startup_entry+0x54/0x60 [ 45.423453][ C1] start_secondary+0x21c/0x2b0 [ 45.423592][ C1] ? __pfx_start_secondary+0x10/0x10 [ 45.423788][ C1] common_startup_64+0x12c/0x138 [ 45.424011][ C1] [ 52.337404][ T551] br1: port 2(veth2) entered disabled state [ 52.338199][ T551] br1: port 1(veth1) entered disabled state [ 52.555354][ T553] veth2: left allmulticast mode [ 52.555560][ T553] veth2: left promiscuous mode [ 52.555852][ T553] br1: port 2(veth2) entered disabled state [ 52.748085][ T555] veth1: left allmulticast mode [ 52.749071][ T555] veth1: left promiscuous mode [ 52.749559][ T555] br1: port 1(veth1) entered disabled state