[ 27.677691][ T284] 8021q: 802.1Q VLAN Support v1.8 [ 31.717947][ T326] GACT probability NOT on [ 33.058277][ T339] ip (339) used greatest stack depth: 23800 bytes left [ 33.176344][ T341] br10: port 1(veth1.10) entered blocking state [ 33.176758][ T341] br10: port 1(veth1.10) entered disabled state [ 33.177834][ T341] veth1.10: entered allmulticast mode [ 33.178011][ T341] veth1: entered allmulticast mode [ 33.179978][ T341] veth1.10: entered promiscuous mode [ 33.180160][ T341] veth1: entered promiscuous mode [ 33.649597][ T346] br11: port 1(veth1.11) entered blocking state [ 33.650888][ T346] br11: port 1(veth1.11) entered disabled state [ 33.651286][ T346] veth1.11: entered allmulticast mode [ 33.658967][ T346] veth1.11: entered promiscuous mode [ 34.489736][ T355] br10: port 2(veth2.10) entered blocking state [ 34.490038][ T355] br10: port 2(veth2.10) entered disabled state [ 34.490330][ T355] veth2.10: entered allmulticast mode [ 34.490507][ T355] veth2: entered allmulticast mode [ 34.492529][ T355] veth2.10: entered promiscuous mode [ 34.492724][ T355] veth2: entered promiscuous mode [ 34.992752][ T361] br11: port 2(veth2.11) entered blocking state [ 34.993498][ T361] br11: port 2(veth2.11) entered disabled state [ 34.993792][ T361] veth2.11: entered allmulticast mode [ 34.995798][ T361] veth2.11: entered promiscuous mode [ 35.465159][ T365] br10: port 2(veth2.10) entered blocking state [ 35.465542][ T365] br10: port 2(veth2.10) entered forwarding state [ 35.466249][ T365] br10: port 1(veth1.10) entered blocking state [ 35.466484][ T365] br10: port 1(veth1.10) entered forwarding state [ 35.589164][ T366] br11: port 2(veth2.11) entered blocking state [ 35.589542][ T366] br11: port 2(veth2.11) entered forwarding state [ 35.590040][ T366] br11: port 1(veth1.11) entered blocking state [ 35.590291][ T366] br11: port 1(veth1.11) entered forwarding state [ 50.471885][ C1] [ 50.472044][ C1] ======================================================== [ 50.472252][ C1] WARNING: possible irq lock inversion dependency detected [ 50.472449][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 50.472592][ C1] -------------------------------------------------------- [ 50.472798][ C1] swapper/1/0 just changed the state of lock: [ 50.472965][ C1] ffff88802af2ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.473299][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 50.473500][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 50.473504][ C1] [ 50.473504][ C1] [ 50.473504][ C1] and interrupts could create inverse lock ordering between them. [ 50.473504][ C1] [ 50.474010][ C1] [ 50.474010][ C1] other info that might help us debug this: [ 50.474210][ C1] Chain exists of: [ 50.474210][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 50.474210][ C1] [ 50.474520][ C1] Possible interrupt unsafe locking scenario: [ 50.474520][ C1] [ 50.474736][ C1] CPU0 CPU1 [ 50.474870][ C1] ---- ---- [ 50.475003][ C1] lock(&p->alloc_lock); [ 50.475104][ C1] local_irq_disable(); [ 50.475266][ C1] lock(&br->lock); [ 50.475441][ C1] lock(lweventlist_lock); [ 50.475613][ C1] [ 50.475718][ C1] lock(&br->lock); [ 50.475849][ C1] [ 50.475849][ C1] *** DEADLOCK *** [ 50.475849][ C1] [ 50.476063][ C1] 1 lock held by swapper/1/0: [ 50.476198][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 50.476480][ C1] [ 50.476480][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 50.476723][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 50.476880][ C1] HARDIRQ-ON-W at: [ 50.476987][ C1] __lock_acquire+0x797/0x1570 [ 50.477168][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.477345][ C1] _raw_spin_lock+0x30/0x40 [ 50.477516][ C1] set_mems_allowed+0x1d/0x210 [ 50.477694][ C1] kernel_init_freeable+0x72/0x310 [ 50.477879][ C1] kernel_init+0x20/0x200 [ 50.478055][ C1] ret_from_fork+0x31/0x70 [ 50.478230][ C1] ret_from_fork_asm+0x1a/0x30 [ 50.478416][ C1] SOFTIRQ-ON-W at: [ 50.478523][ C1] __lock_acquire+0x797/0x1570 [ 50.478698][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.478871][ C1] _raw_spin_lock+0x30/0x40 [ 50.479047][ C1] set_mems_allowed+0x1d/0x210 [ 50.479248][ C1] kernel_init_freeable+0x72/0x310 [ 50.479417][ C1] kernel_init+0x20/0x200 [ 50.479586][ C1] ret_from_fork+0x31/0x70 [ 50.479761][ C1] ret_from_fork_asm+0x1a/0x30 [ 50.479944][ C1] INITIAL USE at: [ 50.480044][ C1] __lock_acquire+0x797/0x1570 [ 50.480234][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.480404][ C1] _raw_spin_lock+0x30/0x40 [ 50.480577][ C1] set_mems_allowed+0x1d/0x210 [ 50.480746][ C1] kernel_init_freeable+0x72/0x310 [ 50.480916][ C1] kernel_init+0x20/0x200 [ 50.481083][ C1] ret_from_fork+0x31/0x70 [ 50.481256][ C1] ret_from_fork_asm+0x1a/0x30 [ 50.481421][ C1] } [ 50.481495][ C1] ... key at: [] __key.387+0x0/0x40 [ 50.481713][ C1] ... acquired at: [ 50.481823][ C1] __lock_acquire+0xaf0/0x1570 [ 50.481971][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.482123][ C1] _raw_spin_lock+0x30/0x40 [ 50.482271][ C1] __get_task_comm+0x27/0x70 [ 50.482428][ C1] ref_tracker_alloc+0x2ee/0x490 [ 50.482576][ C1] linkwatch_fire_event+0x196/0x200 [ 50.482728][ C1] veth_newlink+0x367/0x830 [veth] [ 50.482882][ C1] rtnl_newlink_create+0x341/0x850 [ 50.483029][ C1] __rtnl_newlink+0xac9/0xd80 [ 50.483173][ C1] rtnl_newlink+0x63/0xa0 [ 50.483320][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 50.483471][ C1] netlink_rcv_skb+0x130/0x360 [ 50.483625][ C1] netlink_unicast+0x449/0x710 [ 50.483773][ C1] netlink_sendmsg+0x723/0xbe0 [ 50.483920][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 50.484068][ C1] ___sys_sendmsg+0xee/0x170 [ 50.484204][ C1] __sys_sendmsg+0xcd/0x170 [ 50.484338][ C1] do_syscall_64+0xc6/0x1e0 [ 50.484473][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 50.484649][ C1] [ 50.484718][ C1] -> (lweventlist_lock){....}-{2:2} { [ 50.484861][ C1] INITIAL USE at: [ 50.484962][ C1] __lock_acquire+0x797/0x1570 [ 50.485132][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.485306][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 50.485475][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 50.485646][ C1] rtnl_getlink+0x4c9/0x970 [ 50.485820][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 50.485987][ C1] netlink_rcv_skb+0x130/0x360 [ 50.486158][ C1] netlink_unicast+0x449/0x710 [ 50.486328][ C1] netlink_sendmsg+0x723/0xbe0 [ 50.486497][ C1] __sys_sendto+0x37d/0x410 [ 50.486671][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 50.486858][ C1] do_syscall_64+0xc6/0x1e0 [ 50.487032][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 50.487234][ C1] } [ 50.487303][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 50.487509][ C1] ... acquired at: [ 50.487614][ C1] __lock_acquire+0xaf0/0x1570 [ 50.487753][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.487895][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 50.488029][ C1] linkwatch_fire_event+0x74/0x200 [ 50.488168][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 50.488383][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 50.488595][ C1] dev_set_mac_address+0x28a/0x410 [ 50.488745][ C1] dev_set_mac_address_user+0x31/0x50 [ 50.488897][ C1] do_setlink+0x17b4/0x21e0 [ 50.489044][ C1] rtnl_setlink+0x1f7/0x310 [ 50.489196][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 50.489332][ C1] netlink_rcv_skb+0x130/0x360 [ 50.489470][ C1] netlink_unicast+0x449/0x710 [ 50.489608][ C1] netlink_sendmsg+0x723/0xbe0 [ 50.489744][ C1] __sys_sendto+0x37d/0x410 [ 50.489880][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 50.490018][ C1] do_syscall_64+0xc6/0x1e0 [ 50.490153][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 50.490325][ C1] [ 50.490394][ C1] -> (&br->lock){+.-.}-{2:2} { [ 50.490537][ C1] HARDIRQ-ON-W at: [ 50.490643][ C1] __lock_acquire+0x797/0x1570 [ 50.490813][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.490999][ C1] _raw_spin_lock_bh+0x38/0x50 [ 50.491176][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 50.491410][ C1] dev_set_mac_address+0x28a/0x410 [ 50.491582][ C1] dev_set_mac_address_user+0x31/0x50 [ 50.491747][ C1] do_setlink+0x17b4/0x21e0 [ 50.491925][ C1] rtnl_setlink+0x1f7/0x310 [ 50.492114][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 50.492283][ C1] netlink_rcv_skb+0x130/0x360 [ 50.492543][ C1] netlink_unicast+0x449/0x710 [ 50.492731][ C1] netlink_sendmsg+0x723/0xbe0 [ 50.492916][ C1] __sys_sendto+0x37d/0x410 [ 50.493090][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 50.493365][ C1] do_syscall_64+0xc6/0x1e0 [ 50.493540][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 50.493749][ C1] IN-SOFTIRQ-W at: [ 50.493929][ C1] __lock_acquire+0x797/0x1570 [ 50.494110][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.494281][ C1] _raw_spin_lock+0x30/0x40 [ 50.494451][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.494771][ C1] call_timer_fn+0x13b/0x230 [ 50.494939][ C1] __run_timers+0x545/0x810 [ 50.495109][ C1] run_timer_softirq+0xe8/0x1b0 [ 50.495436][ C1] __do_softirq+0x1f8/0x5df [ 50.495605][ C1] irq_exit_rcu+0x97/0xc0 [ 50.495777][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 50.496059][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 50.496260][ C1] default_idle+0xf/0x20 [ 50.496429][ C1] default_idle_call+0x6d/0xb0 [ 50.496678][ C1] cpuidle_idle_call+0x1f4/0x280 [ 50.496866][ C1] do_idle+0xf9/0x160 [ 50.497004][ C1] cpu_startup_entry+0x54/0x60 [ 50.497172][ C1] start_secondary+0x21c/0x2b0 [ 50.497422][ C1] common_startup_64+0x12c/0x138 [ 50.497591][ C1] INITIAL USE at: [ 50.497695][ C1] __lock_acquire+0x797/0x1570 [ 50.497869][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.498119][ C1] _raw_spin_lock_bh+0x38/0x50 [ 50.498289][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 50.498525][ C1] dev_set_mac_address+0x28a/0x410 [ 50.498771][ C1] dev_set_mac_address_user+0x31/0x50 [ 50.498942][ C1] do_setlink+0x17b4/0x21e0 [ 50.499116][ C1] rtnl_setlink+0x1f7/0x310 [ 50.499365][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 50.499535][ C1] netlink_rcv_skb+0x130/0x360 [ 50.499707][ C1] netlink_unicast+0x449/0x710 [ 50.499878][ C1] netlink_sendmsg+0x723/0xbe0 [ 50.500127][ C1] __sys_sendto+0x37d/0x410 [ 50.500299][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 50.500473][ C1] do_syscall_64+0xc6/0x1e0 [ 50.500720][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 50.500923][ C1] } [ 50.500993][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 50.501340][ C1] ... acquired at: [ 50.501441][ C1] mark_lock+0x28d/0x3e0 [ 50.501576][ C1] mark_usage+0xd9/0x2a0 [ 50.501715][ C1] __lock_acquire+0x797/0x1570 [ 50.501858][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.502071][ C1] _raw_spin_lock+0x30/0x40 [ 50.502211][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.502418][ C1] call_timer_fn+0x13b/0x230 [ 50.502555][ C1] __run_timers+0x545/0x810 [ 50.502766][ C1] run_timer_softirq+0xe8/0x1b0 [ 50.502902][ C1] __do_softirq+0x1f8/0x5df [ 50.503039][ C1] irq_exit_rcu+0x97/0xc0 [ 50.503179][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 50.503425][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 50.503592][ C1] default_idle+0xf/0x20 [ 50.503728][ C1] default_idle_call+0x6d/0xb0 [ 50.503864][ C1] cpuidle_idle_call+0x1f4/0x280 [ 50.504075][ C1] do_idle+0xf9/0x160 [ 50.504178][ C1] cpu_startup_entry+0x54/0x60 [ 50.504312][ C1] start_secondary+0x21c/0x2b0 [ 50.504454][ C1] common_startup_64+0x12c/0x138 [ 50.504667][ C1] [ 50.504735][ C1] [ 50.504735][ C1] stack backtrace: [ 50.504905][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 50.505110][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 50.505498][ C1] Call Trace: [ 50.505600][ C1] [ 50.505678][ C1] dump_stack_lvl+0x82/0xd0 [ 50.505821][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 50.506140][ C1] ? common_startup_64+0x12c/0x138 [ 50.506274][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 50.506441][ C1] ? __pfx_usage_skip+0x10/0x10 [ 50.506573][ C1] ? __pfx_usage_match+0x10/0x10 [ 50.506784][ C1] ? arch_stack_walk+0x8c/0xf0 [ 50.506934][ C1] mark_lock_irq+0x4cd/0xa10 [ 50.507074][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 50.507205][ C1] ? stack_trace_save+0x94/0xd0 [ 50.507414][ C1] ? add_chain_cache+0x248/0x8b0 [ 50.507547][ C1] ? save_trace+0x8f/0x5b0 [ 50.507679][ C1] mark_lock+0x28d/0x3e0 [ 50.507786][ C1] mark_usage+0xd9/0x2a0 [ 50.507897][ C1] __lock_acquire+0x797/0x1570 [ 50.508126][ C1] ? __lock_acquire+0xaf0/0x1570 [ 50.508272][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 50.508531][ C1] lock_acquire.part.0+0xeb/0x330 [ 50.508676][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.508985][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 50.509133][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 50.509279][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.509497][ C1] ? lock_acquire+0x32/0xc0 [ 50.509648][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.509873][ C1] _raw_spin_lock+0x30/0x40 [ 50.510018][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.510318][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.510537][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 50.510791][ C1] call_timer_fn+0x13b/0x230 [ 50.510937][ C1] ? call_timer_fn+0xe8/0x230 [ 50.511157][ C1] ? call_timer_fn+0xe8/0x230 [ 50.511310][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 50.511454][ C1] ? mark_lock+0x38/0x3e0 [ 50.511568][ C1] __run_timers+0x545/0x810 [ 50.511795][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 50.512052][ C1] ? __pfx___run_timers+0x10/0x10 [ 50.512198][ C1] ? do_raw_spin_lock+0x131/0x270 [ 50.512348][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 50.512570][ C1] ? lock_acquire+0x32/0xc0 [ 50.512721][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 50.512868][ C1] run_timer_softirq+0xe8/0x1b0 [ 50.513013][ C1] __do_softirq+0x1f8/0x5df [ 50.513240][ C1] irq_exit_rcu+0x97/0xc0 [ 50.513351][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 50.513499][ C1] [ 50.513575][ C1] [ 50.513650][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 50.513909][ C1] RIP: 0010:default_idle+0xf/0x20 [ 50.514069][ 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 [ 50.514588][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000242 [ 50.514774][ C1] RAX: 00000000000fc33d RBX: 1ffff92000029fc1 RCX: ffffffff85b0e9d5 [ 50.514994][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff834aa4a4 [ 50.515305][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 50.515528][ C1] R10: ffff8880360b84e3 R11: ffff8880360bdc80 R12: 0000000000000000 [ 50.515747][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 50.516049][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 50.516196][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 50.516349][ C1] default_idle_call+0x6d/0xb0 [ 50.516498][ C1] cpuidle_idle_call+0x1f4/0x280 [ 50.516719][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 50.516876][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 50.517020][ C1] do_idle+0xf9/0x160 [ 50.517128][ C1] cpu_startup_entry+0x54/0x60 [ 50.517270][ C1] start_secondary+0x21c/0x2b0 [ 50.517571][ C1] ? __pfx_start_secondary+0x10/0x10 [ 50.517721][ C1] common_startup_64+0x12c/0x138 [ 50.517870][ C1] [ 116.953274][ T615] br11: port 2(veth2.11) entered disabled state [ 116.953749][ T615] br11: port 1(veth1.11) entered disabled state [ 117.057093][ T616] br10: port 2(veth2.10) entered disabled state [ 117.057551][ T616] br10: port 1(veth1.10) entered disabled state [ 117.301276][ T618] veth2.11: left allmulticast mode [ 117.301445][ T618] veth2.11: left promiscuous mode [ 117.301766][ T618] br11: port 2(veth2.11) entered disabled state [ 117.532819][ T620] veth2: left allmulticast mode [ 117.532996][ T620] veth2: left promiscuous mode [ 117.627315][ T623] veth2.10: left allmulticast mode [ 117.627495][ T623] veth2.10: left promiscuous mode [ 117.627758][ T623] br10: port 2(veth2.10) entered disabled state [ 118.169284][ T628] veth1.11: left allmulticast mode [ 118.169458][ T628] veth1.11: left promiscuous mode [ 118.169710][ T628] br11: port 1(veth1.11) entered disabled state [ 118.377769][ T630] veth1: left allmulticast mode [ 118.377969][ T630] veth1: left promiscuous mode [ 118.481809][ T631] veth1.10: left allmulticast mode [ 118.481985][ T631] veth1.10: left promiscuous mode [ 118.482247][ T631] br10: port 1(veth1.10) entered disabled state