[ 26.956533][ T282] 8021q: 802.1Q VLAN Support v1.8 [ 30.798845][ T324] GACT probability NOT on [ 32.165246][ T339] br10: port 1(veth1.10) entered blocking state [ 32.165601][ T339] br10: port 1(veth1.10) entered disabled state [ 32.165900][ T339] veth1.10: entered allmulticast mode [ 32.166170][ T339] veth1: entered allmulticast mode [ 32.168125][ T339] veth1.10: entered promiscuous mode [ 32.168483][ T339] veth1: entered promiscuous mode [ 32.684792][ T344] br11: port 1(veth1.11) entered blocking state [ 32.685142][ T344] br11: port 1(veth1.11) entered disabled state [ 32.685383][ T344] veth1.11: entered allmulticast mode [ 32.687350][ T344] veth1.11: entered promiscuous mode [ 33.496239][ T354] br10: port 2(veth2.10) entered blocking state [ 33.496530][ T354] br10: port 2(veth2.10) entered disabled state [ 33.496771][ T354] veth2.10: entered allmulticast mode [ 33.496930][ T354] veth2: entered allmulticast mode [ 33.499256][ T354] veth2.10: entered promiscuous mode [ 33.499440][ T354] veth2: entered promiscuous mode [ 33.976042][ T359] br11: port 2(veth2.11) entered blocking state [ 33.976379][ T359] br11: port 2(veth2.11) entered disabled state [ 33.976619][ T359] veth2.11: entered allmulticast mode [ 33.978450][ T359] veth2.11: entered promiscuous mode [ 34.460229][ T363] br10: port 2(veth2.10) entered blocking state [ 34.460662][ T363] br10: port 2(veth2.10) entered forwarding state [ 34.461282][ T363] br10: port 1(veth1.10) entered blocking state [ 34.461514][ T363] br10: port 1(veth1.10) entered forwarding state [ 34.603685][ T364] br11: port 2(veth2.11) entered blocking state [ 34.603939][ T364] br11: port 2(veth2.11) entered forwarding state [ 34.604382][ T364] br11: port 1(veth1.11) entered blocking state [ 34.604618][ T364] br11: port 1(veth1.11) entered forwarding state [ 49.960155][ C1] [ 49.960301][ C1] ======================================================== [ 49.960555][ C1] WARNING: possible irq lock inversion dependency detected [ 49.960782][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 49.960950][ C1] -------------------------------------------------------- [ 49.961192][ C1] swapper/1/0 just changed the state of lock: [ 49.961380][ C1] ffff88800623ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.961798][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 49.962030][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 49.962034][ C1] [ 49.962034][ C1] [ 49.962034][ C1] and interrupts could create inverse lock ordering between them. [ 49.962034][ C1] [ 49.962600][ C1] [ 49.962600][ C1] other info that might help us debug this: [ 49.962836][ C1] Chain exists of: [ 49.962836][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 49.962836][ C1] [ 49.963205][ C1] Possible interrupt unsafe locking scenario: [ 49.963205][ C1] [ 49.963423][ C1] CPU0 CPU1 [ 49.963595][ C1] ---- ---- [ 49.963751][ C1] lock(&p->alloc_lock); [ 49.963867][ C1] local_irq_disable(); [ 49.964067][ C1] lock(&br->lock); [ 49.964271][ C1] lock(lweventlist_lock); [ 49.964454][ C1] [ 49.964581][ C1] lock(&br->lock); [ 49.964693][ C1] [ 49.964693][ C1] *** DEADLOCK *** [ 49.964693][ C1] [ 49.964912][ C1] 1 lock held by swapper/1/0: [ 49.965064][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 49.965368][ C1] [ 49.965368][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 49.965620][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 49.965774][ C1] HARDIRQ-ON-W at: [ 49.965896][ C1] __lock_acquire+0x797/0x1570 [ 49.966090][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.966277][ C1] _raw_spin_lock+0x30/0x40 [ 49.966455][ C1] set_mems_allowed+0x1d/0x210 [ 49.966645][ C1] kernel_init_freeable+0x72/0x310 [ 49.966835][ C1] kernel_init+0x20/0x200 [ 49.967028][ C1] ret_from_fork+0x31/0x70 [ 49.967214][ C1] ret_from_fork_asm+0x1a/0x30 [ 49.967397][ C1] SOFTIRQ-ON-W at: [ 49.967506][ C1] __lock_acquire+0x797/0x1570 [ 49.967689][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.967877][ C1] _raw_spin_lock+0x30/0x40 [ 49.968064][ C1] set_mems_allowed+0x1d/0x210 [ 49.968252][ C1] kernel_init_freeable+0x72/0x310 [ 49.968436][ C1] kernel_init+0x20/0x200 [ 49.968620][ C1] ret_from_fork+0x31/0x70 [ 49.968801][ C1] ret_from_fork_asm+0x1a/0x30 [ 49.968986][ C1] INITIAL USE at: [ 49.969100][ C1] __lock_acquire+0x797/0x1570 [ 49.969292][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.969478][ C1] _raw_spin_lock+0x30/0x40 [ 49.969663][ C1] set_mems_allowed+0x1d/0x210 [ 49.969843][ C1] kernel_init_freeable+0x72/0x310 [ 49.970028][ C1] kernel_init+0x20/0x200 [ 49.970209][ C1] ret_from_fork+0x31/0x70 [ 49.970403][ C1] ret_from_fork_asm+0x1a/0x30 [ 49.970603][ C1] } [ 49.970677][ C1] ... key at: [] __key.387+0x0/0x40 [ 49.970927][ C1] ... acquired at: [ 49.971037][ C1] __lock_acquire+0xaf0/0x1570 [ 49.971188][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.971355][ C1] _raw_spin_lock+0x30/0x40 [ 49.971504][ C1] __get_task_comm+0x27/0x70 [ 49.971667][ C1] ref_tracker_alloc+0x2ee/0x490 [ 49.971819][ C1] linkwatch_fire_event+0x196/0x200 [ 49.971966][ C1] veth_newlink+0x367/0x830 [veth] [ 49.972138][ C1] rtnl_newlink_create+0x341/0x850 [ 49.972296][ C1] __rtnl_newlink+0xac9/0xd80 [ 49.972458][ C1] rtnl_newlink+0x63/0xa0 [ 49.972617][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.972777][ C1] netlink_rcv_skb+0x130/0x360 [ 49.972926][ C1] netlink_unicast+0x449/0x710 [ 49.973084][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.973230][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 49.973384][ C1] ___sys_sendmsg+0xee/0x170 [ 49.973552][ C1] __sys_sendmsg+0xcd/0x170 [ 49.973696][ C1] do_syscall_64+0xc6/0x1e0 [ 49.973862][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.974050][ C1] [ 49.974123][ C1] -> (lweventlist_lock){....}-{2:2} { [ 49.974375][ C1] INITIAL USE at: [ 49.974492][ C1] __lock_acquire+0x797/0x1570 [ 49.974686][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.974881][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 49.975167][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 49.975348][ C1] rtnl_getlink+0x4c9/0x970 [ 49.975535][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.975717][ C1] netlink_rcv_skb+0x130/0x360 [ 49.976006][ C1] netlink_unicast+0x449/0x710 [ 49.976186][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.976377][ C1] __sys_sendto+0x37d/0x410 [ 49.976670][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 49.976871][ C1] do_syscall_64+0xc6/0x1e0 [ 49.977058][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.977374][ C1] } [ 49.977452][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 49.977682][ C1] ... acquired at: [ 49.977800][ C1] __lock_acquire+0xaf0/0x1570 [ 49.977958][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.978097][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 49.978250][ C1] linkwatch_fire_event+0x74/0x200 [ 49.978386][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 49.978709][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 49.978921][ C1] dev_set_mac_address+0x28a/0x410 [ 49.979064][ C1] dev_set_mac_address_user+0x31/0x50 [ 49.979210][ C1] do_setlink+0x17b4/0x21e0 [ 49.979441][ C1] rtnl_setlink+0x1f7/0x310 [ 49.979575][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.979723][ C1] netlink_rcv_skb+0x130/0x360 [ 49.979854][ C1] netlink_unicast+0x449/0x710 [ 49.980092][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.980229][ C1] __sys_sendto+0x37d/0x410 [ 49.980379][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 49.980514][ C1] do_syscall_64+0xc6/0x1e0 [ 49.980659][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.980934][ C1] [ 49.981004][ C1] -> (&br->lock){+.-.}-{2:2} { [ 49.981162][ C1] HARDIRQ-ON-W at: [ 49.981261][ C1] __lock_acquire+0x797/0x1570 [ 49.981521][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.981690][ C1] _raw_spin_lock_bh+0x38/0x50 [ 49.981872][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 49.982211][ C1] dev_set_mac_address+0x28a/0x410 [ 49.982402][ C1] dev_set_mac_address_user+0x31/0x50 [ 49.982583][ C1] do_setlink+0x17b4/0x21e0 [ 49.982766][ C1] rtnl_setlink+0x1f7/0x310 [ 49.983016][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.983182][ C1] netlink_rcv_skb+0x130/0x360 [ 49.983351][ C1] netlink_unicast+0x449/0x710 [ 49.983597][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.983765][ C1] __sys_sendto+0x37d/0x410 [ 49.983933][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 49.984108][ C1] do_syscall_64+0xc6/0x1e0 [ 49.984362][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.984582][ C1] IN-SOFTIRQ-W at: [ 49.984682][ C1] __lock_acquire+0x797/0x1570 [ 49.984954][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.985124][ C1] _raw_spin_lock+0x30/0x40 [ 49.985290][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.985531][ C1] call_timer_fn+0x13b/0x230 [ 49.985702][ C1] __run_timers+0x545/0x810 [ 49.985980][ C1] run_timer_softirq+0xe8/0x1b0 [ 49.986148][ C1] __do_softirq+0x1f8/0x5df [ 49.986346][ C1] irq_exit_rcu+0x97/0xc0 [ 49.986517][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 49.986726][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 49.987038][ C1] default_idle+0xf/0x20 [ 49.987325][ C1] default_idle_call+0x6d/0xb0 [ 49.987496][ C1] cpuidle_idle_call+0x1f4/0x280 [ 49.987692][ C1] do_idle+0xf9/0x160 [ 49.987846][ C1] cpu_startup_entry+0x54/0x60 [ 49.988019][ C1] start_secondary+0x21c/0x2b0 [ 49.988227][ C1] common_startup_64+0x12c/0x138 [ 49.988504][ C1] INITIAL USE at: [ 49.988606][ C1] __lock_acquire+0x797/0x1570 [ 49.988792][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.989009][ C1] _raw_spin_lock_bh+0x38/0x50 [ 49.989261][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 49.989605][ C1] dev_set_mac_address+0x28a/0x410 [ 49.989799][ C1] dev_set_mac_address_user+0x31/0x50 [ 49.989964][ C1] do_setlink+0x17b4/0x21e0 [ 49.990155][ C1] rtnl_setlink+0x1f7/0x310 [ 49.990336][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.990615][ C1] netlink_rcv_skb+0x130/0x360 [ 49.990826][ C1] netlink_unicast+0x449/0x710 [ 49.991004][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.991192][ C1] __sys_sendto+0x37d/0x410 [ 49.991458][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 49.991627][ C1] do_syscall_64+0xc6/0x1e0 [ 49.991807][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.992028][ C1] } [ 49.992100][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 49.992381][ C1] ... acquired at: [ 49.992488][ C1] mark_lock+0x28d/0x3e0 [ 49.992730][ C1] mark_usage+0xd9/0x2a0 [ 49.992885][ C1] __lock_acquire+0x797/0x1570 [ 49.993019][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.993151][ C1] _raw_spin_lock+0x30/0x40 [ 49.993292][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.993503][ C1] call_timer_fn+0x13b/0x230 [ 49.993636][ C1] __run_timers+0x545/0x810 [ 49.993772][ C1] run_timer_softirq+0xe8/0x1b0 [ 49.993993][ C1] __do_softirq+0x1f8/0x5df [ 49.994125][ C1] irq_exit_rcu+0x97/0xc0 [ 49.994261][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 49.994428][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 49.994608][ C1] default_idle+0xf/0x20 [ 49.994742][ C1] default_idle_call+0x6d/0xb0 [ 49.994876][ C1] cpuidle_idle_call+0x1f4/0x280 [ 49.995008][ C1] do_idle+0xf9/0x160 [ 49.995235][ C1] cpu_startup_entry+0x54/0x60 [ 49.995370][ C1] start_secondary+0x21c/0x2b0 [ 49.995535][ C1] common_startup_64+0x12c/0x138 [ 49.995673][ C1] [ 49.995741][ C1] [ 49.995741][ C1] stack backtrace: [ 49.995936][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 49.996159][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 49.996654][ C1] Call Trace: [ 49.996769][ C1] [ 49.996845][ C1] dump_stack_lvl+0x82/0xd0 [ 49.997023][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 49.997309][ C1] ? common_startup_64+0x12c/0x138 [ 49.997453][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 49.997649][ C1] ? __pfx_usage_skip+0x10/0x10 [ 49.997789][ C1] ? __pfx_usage_match+0x10/0x10 [ 49.997953][ C1] ? arch_stack_walk+0x8c/0xf0 [ 49.998112][ C1] mark_lock_irq+0x4cd/0xa10 [ 49.998252][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 49.998420][ C1] ? stack_trace_save+0x94/0xd0 [ 49.998556][ C1] ? add_chain_cache+0x248/0x8b0 [ 49.998794][ C1] ? save_trace+0x8f/0x5b0 [ 49.998929][ C1] mark_lock+0x28d/0x3e0 [ 49.999049][ C1] mark_usage+0xd9/0x2a0 [ 49.999149][ C1] __lock_acquire+0x797/0x1570 [ 49.999282][ C1] ? __lock_acquire+0xaf0/0x1570 [ 49.999417][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 49.999742][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.999873][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.000084][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 50.000317][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 50.000482][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.000682][ C1] ? lock_acquire+0x32/0xc0 [ 50.000816][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.001024][ C1] _raw_spin_lock+0x30/0x40 [ 50.001159][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.001364][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.001567][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 50.001804][ C1] call_timer_fn+0x13b/0x230 [ 50.001934][ C1] ? call_timer_fn+0xe8/0x230 [ 50.002065][ C1] ? call_timer_fn+0xe8/0x230 [ 50.002273][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 50.002490][ C1] ? mark_lock+0x38/0x3e0 [ 50.002594][ C1] __run_timers+0x545/0x810 [ 50.002733][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 50.002966][ C1] ? __pfx___run_timers+0x10/0x10 [ 50.003099][ C1] ? do_raw_spin_lock+0x131/0x270 [ 50.003230][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 50.003361][ C1] ? lock_acquire+0x32/0xc0 [ 50.003572][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 50.003708][ C1] run_timer_softirq+0xe8/0x1b0 [ 50.003853][ C1] __do_softirq+0x1f8/0x5df [ 50.003989][ C1] irq_exit_rcu+0x97/0xc0 [ 50.004092][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 50.004306][ C1] [ 50.004376][ C1] [ 50.004445][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 50.004622][ C1] RIP: 0010:default_idle+0xf/0x20 [ 50.004761][ 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 [ 50.005370][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000242 [ 50.005636][ C1] RAX: 0000000000132f89 RBX: 1ffff92000029fc1 RCX: ffffffffb630e9d5 [ 50.005856][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb3caa4a4 [ 50.006181][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 50.006392][ C1] R10: ffff8880360b84e3 R11: ffff8880360bdc80 R12: 0000000000000000 [ 50.006604][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 50.006820][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 50.007052][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 50.007276][ C1] default_idle_call+0x6d/0xb0 [ 50.007413][ C1] cpuidle_idle_call+0x1f4/0x280 [ 50.007549][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 50.007689][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 50.007837][ C1] do_idle+0xf9/0x160 [ 50.007952][ C1] cpu_startup_entry+0x54/0x60 [ 50.008085][ C1] start_secondary+0x21c/0x2b0 [ 50.008309][ C1] ? __pfx_start_secondary+0x10/0x10 [ 50.008455][ C1] common_startup_64+0x12c/0x138 [ 50.008621][ C1] [ 61.477523][ T447] br11: port 2(veth2.11) entered disabled state [ 61.478131][ T447] br11: port 1(veth1.11) entered disabled state [ 61.576909][ T448] br10: port 2(veth2.10) entered disabled state [ 61.577362][ T448] br10: port 1(veth1.10) entered disabled state [ 61.785541][ T450] veth2.11: left allmulticast mode [ 61.785707][ T450] veth2.11: left promiscuous mode [ 61.785969][ T450] br11: port 2(veth2.11) entered disabled state [ 61.991247][ T452] veth2: left allmulticast mode [ 61.991482][ T452] veth2: left promiscuous mode [ 62.095261][ T455] veth2.10: left allmulticast mode [ 62.095430][ T455] veth2.10: left promiscuous mode [ 62.095688][ T455] br10: port 2(veth2.10) entered disabled state [ 62.603918][ T460] veth1.11: left allmulticast mode [ 62.604107][ T460] veth1.11: left promiscuous mode [ 62.604356][ T460] br11: port 1(veth1.11) entered disabled state [ 62.808117][ T462] veth1: left allmulticast mode [ 62.808285][ T462] veth1: left promiscuous mode [ 62.924457][ T463] veth1.10: left allmulticast mode [ 62.924710][ T463] veth1.10: left promiscuous mode [ 62.925126][ T463] br10: port 1(veth1.10) entered disabled state