[ 28.403402][ T281] 8021q: 802.1Q VLAN Support v1.8 [ 32.555229][ T323] GACT probability NOT on [ 34.120914][ T338] br10: port 1(veth1.10) entered blocking state [ 34.121528][ T338] br10: port 1(veth1.10) entered disabled state [ 34.122048][ T338] veth1.10: entered allmulticast mode [ 34.122306][ T338] veth1: entered allmulticast mode [ 34.125836][ T338] veth1.10: entered promiscuous mode [ 34.126147][ T338] veth1: entered promiscuous mode [ 34.672551][ T343] br11: port 1(veth1.11) entered blocking state [ 34.672847][ T343] br11: port 1(veth1.11) entered disabled state [ 34.673147][ T343] veth1.11: entered allmulticast mode [ 34.676183][ T343] veth1.11: entered promiscuous mode [ 35.609356][ T353] br10: port 2(veth2.10) entered blocking state [ 35.609624][ T353] br10: port 2(veth2.10) entered disabled state [ 35.609916][ T353] veth2.10: entered allmulticast mode [ 35.610080][ T353] veth2: entered allmulticast mode [ 35.613024][ T353] veth2.10: entered promiscuous mode [ 35.613203][ T353] veth2: entered promiscuous mode [ 36.167252][ T358] br11: port 2(veth2.11) entered blocking state [ 36.167626][ T358] br11: port 2(veth2.11) entered disabled state [ 36.167898][ T358] veth2.11: entered allmulticast mode [ 36.169898][ T358] veth2.11: entered promiscuous mode [ 36.664600][ T362] br10: port 2(veth2.10) entered blocking state [ 36.665013][ T362] br10: port 2(veth2.10) entered forwarding state [ 36.665960][ T362] br10: port 1(veth1.10) entered blocking state [ 36.666227][ T362] br10: port 1(veth1.10) entered forwarding state [ 36.807279][ T363] br11: port 2(veth2.11) entered blocking state [ 36.807560][ T363] br11: port 2(veth2.11) entered forwarding state [ 36.808062][ T363] br11: port 1(veth1.11) entered blocking state [ 36.808518][ T363] br11: port 1(veth1.11) entered forwarding state [ 52.009512][ C1] [ 52.009734][ C1] ======================================================== [ 52.010103][ C1] WARNING: possible irq lock inversion dependency detected [ 52.010461][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 52.010697][ C1] -------------------------------------------------------- [ 52.011038][ C1] swapper/1/0 just changed the state of lock: [ 52.011324][ C1] ffff8880074fac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.011927][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 52.012264][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 52.012271][ C1] [ 52.012271][ C1] [ 52.012271][ C1] and interrupts could create inverse lock ordering between them. [ 52.012271][ C1] [ 52.013181][ C1] [ 52.013181][ C1] other info that might help us debug this: [ 52.013500][ C1] Chain exists of: [ 52.013500][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 52.013500][ C1] [ 52.014013][ C1] Possible interrupt unsafe locking scenario: [ 52.014013][ C1] [ 52.014341][ C1] CPU0 CPU1 [ 52.014560][ C1] ---- ---- [ 52.014768][ C1] lock(&p->alloc_lock); [ 52.014937][ C1] local_irq_disable(); [ 52.015170][ C1] lock(&br->lock); [ 52.015378][ C1] lock(lweventlist_lock); [ 52.015568][ C1] [ 52.015681][ C1] lock(&br->lock); [ 52.015834][ C1] [ 52.015834][ C1] *** DEADLOCK *** [ 52.015834][ C1] [ 52.016174][ C1] 1 lock held by swapper/1/0: [ 52.016391][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 52.016841][ C1] [ 52.016841][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 52.017214][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 52.017435][ C1] HARDIRQ-ON-W at: [ 52.017605][ C1] __lock_acquire+0x797/0x1570 [ 52.017893][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.018182][ C1] _raw_spin_lock+0x30/0x40 [ 52.018408][ C1] set_mems_allowed+0x1d/0x210 [ 52.018611][ C1] kernel_init_freeable+0x72/0x310 [ 52.018805][ C1] kernel_init+0x20/0x200 [ 52.018982][ C1] ret_from_fork+0x31/0x70 [ 52.019167][ C1] ret_from_fork_asm+0x1a/0x30 [ 52.019377][ C1] SOFTIRQ-ON-W at: [ 52.019505][ C1] __lock_acquire+0x797/0x1570 [ 52.019838][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.020052][ C1] _raw_spin_lock+0x30/0x40 [ 52.020320][ C1] set_mems_allowed+0x1d/0x210 [ 52.020591][ C1] kernel_init_freeable+0x72/0x310 [ 52.020871][ C1] kernel_init+0x20/0x200 [ 52.021165][ C1] ret_from_fork+0x31/0x70 [ 52.021421][ C1] ret_from_fork_asm+0x1a/0x30 [ 52.021640][ C1] INITIAL USE at: [ 52.021770][ C1] __lock_acquire+0x797/0x1570 [ 52.021979][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.022195][ C1] _raw_spin_lock+0x30/0x40 [ 52.022398][ C1] set_mems_allowed+0x1d/0x210 [ 52.022575][ C1] kernel_init_freeable+0x72/0x310 [ 52.022752][ C1] kernel_init+0x20/0x200 [ 52.022925][ C1] ret_from_fork+0x31/0x70 [ 52.023101][ C1] ret_from_fork_asm+0x1a/0x30 [ 52.023276][ C1] } [ 52.023352][ C1] ... key at: [] __key.387+0x0/0x40 [ 52.023580][ C1] ... acquired at: [ 52.023697][ C1] __lock_acquire+0xaf0/0x1570 [ 52.023852][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.024000][ C1] _raw_spin_lock+0x30/0x40 [ 52.024140][ C1] __get_task_comm+0x27/0x70 [ 52.024287][ C1] ref_tracker_alloc+0x2ee/0x490 [ 52.024458][ C1] linkwatch_fire_event+0x196/0x200 [ 52.024608][ C1] veth_newlink+0x367/0x830 [veth] [ 52.024767][ C1] rtnl_newlink_create+0x341/0x850 [ 52.024906][ C1] __rtnl_newlink+0xac9/0xd80 [ 52.025049][ C1] rtnl_newlink+0x63/0xa0 [ 52.025188][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.025334][ C1] netlink_rcv_skb+0x130/0x360 [ 52.025489][ C1] netlink_unicast+0x449/0x710 [ 52.025632][ C1] netlink_sendmsg+0x723/0xbe0 [ 52.025775][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 52.025910][ C1] ___sys_sendmsg+0xee/0x170 [ 52.026055][ C1] __sys_sendmsg+0xcd/0x170 [ 52.026190][ C1] do_syscall_64+0xc6/0x1e0 [ 52.026341][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.026528][ C1] [ 52.026604][ C1] -> (lweventlist_lock){....}-{2:2} { [ 52.026755][ C1] INITIAL USE at: [ 52.026867][ C1] __lock_acquire+0x797/0x1570 [ 52.027047][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.027225][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 52.027393][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 52.027566][ C1] rtnl_getlink+0x4c9/0x970 [ 52.027740][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.027910][ C1] netlink_rcv_skb+0x130/0x360 [ 52.028080][ C1] netlink_unicast+0x449/0x710 [ 52.028251][ C1] netlink_sendmsg+0x723/0xbe0 [ 52.028425][ C1] __sys_sendto+0x37d/0x410 [ 52.028598][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 52.028775][ C1] do_syscall_64+0xc6/0x1e0 [ 52.028944][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.029150][ C1] } [ 52.029224][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 52.029448][ C1] ... acquired at: [ 52.029554][ C1] __lock_acquire+0xaf0/0x1570 [ 52.029746][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.029910][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 52.030060][ C1] linkwatch_fire_event+0x74/0x200 [ 52.030194][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 52.030418][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 52.030630][ C1] dev_set_mac_address+0x28a/0x410 [ 52.030774][ C1] dev_set_mac_address_user+0x31/0x50 [ 52.030909][ C1] do_setlink+0x17b4/0x21e0 [ 52.031060][ C1] rtnl_setlink+0x1f7/0x310 [ 52.031298][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.031440][ C1] netlink_rcv_skb+0x130/0x360 [ 52.031573][ C1] netlink_unicast+0x449/0x710 [ 52.031716][ C1] netlink_sendmsg+0x723/0xbe0 [ 52.031860][ C1] __sys_sendto+0x37d/0x410 [ 52.032074][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 52.032229][ C1] do_syscall_64+0xc6/0x1e0 [ 52.032382][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.032566][ C1] [ 52.032638][ C1] -> (&br->lock){+.-.}-{2:2} { [ 52.032784][ C1] HARDIRQ-ON-W at: [ 52.032896][ C1] __lock_acquire+0x797/0x1570 [ 52.033065][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.033413][ C1] _raw_spin_lock_bh+0x38/0x50 [ 52.033581][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 52.033813][ C1] dev_set_mac_address+0x28a/0x410 [ 52.033989][ C1] dev_set_mac_address_user+0x31/0x50 [ 52.034159][ C1] do_setlink+0x17b4/0x21e0 [ 52.034366][ C1] rtnl_setlink+0x1f7/0x310 [ 52.034550][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.034817][ C1] netlink_rcv_skb+0x130/0x360 [ 52.035007][ C1] netlink_unicast+0x449/0x710 [ 52.035197][ C1] netlink_sendmsg+0x723/0xbe0 [ 52.035490][ C1] __sys_sendto+0x37d/0x410 [ 52.035680][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 52.035868][ C1] do_syscall_64+0xc6/0x1e0 [ 52.036044][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.036333][ C1] IN-SOFTIRQ-W at: [ 52.036444][ C1] __lock_acquire+0x797/0x1570 [ 52.036620][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.036808][ C1] _raw_spin_lock+0x30/0x40 [ 52.036980][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.037223][ C1] call_timer_fn+0x13b/0x230 [ 52.037504][ C1] __run_timers+0x545/0x810 [ 52.037674][ C1] run_timer_softirq+0xe8/0x1b0 [ 52.037858][ C1] __do_softirq+0x1f8/0x5df [ 52.038039][ C1] irq_exit_rcu+0x97/0xc0 [ 52.038232][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.038454][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.038798][ C1] default_idle+0xf/0x20 [ 52.039069][ C1] default_idle_call+0x6d/0xb0 [ 52.039263][ C1] cpuidle_idle_call+0x1f4/0x280 [ 52.039438][ C1] do_idle+0xf9/0x160 [ 52.039581][ C1] cpu_startup_entry+0x54/0x60 [ 52.039782][ C1] start_secondary+0x21c/0x2b0 [ 52.039961][ C1] common_startup_64+0x12c/0x138 [ 52.040233][ C1] INITIAL USE at: [ 52.040334][ C1] __lock_acquire+0x797/0x1570 [ 52.040515][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.040694][ C1] _raw_spin_lock_bh+0x38/0x50 [ 52.040891][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 52.041330][ C1] dev_set_mac_address+0x28a/0x410 [ 52.041529][ C1] dev_set_mac_address_user+0x31/0x50 [ 52.041745][ C1] do_setlink+0x17b4/0x21e0 [ 52.042074][ C1] rtnl_setlink+0x1f7/0x310 [ 52.042277][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 52.042511][ C1] netlink_rcv_skb+0x130/0x360 [ 52.042940][ C1] netlink_unicast+0x449/0x710 [ 52.043209][ C1] netlink_sendmsg+0x723/0xbe0 [ 52.043482][ C1] __sys_sendto+0x37d/0x410 [ 52.043723][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 52.043949][ C1] do_syscall_64+0xc6/0x1e0 [ 52.044280][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 52.044552][ C1] } [ 52.044822][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 52.045256][ C1] ... acquired at: [ 52.045421][ C1] mark_lock+0x28d/0x3e0 [ 52.045637][ C1] mark_usage+0xd9/0x2a0 [ 52.045956][ C1] __lock_acquire+0x797/0x1570 [ 52.046123][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.046291][ C1] _raw_spin_lock+0x30/0x40 [ 52.046457][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.046726][ C1] call_timer_fn+0x13b/0x230 [ 52.047002][ C1] __run_timers+0x545/0x810 [ 52.047187][ C1] run_timer_softirq+0xe8/0x1b0 [ 52.047356][ C1] __do_softirq+0x1f8/0x5df [ 52.047587][ C1] irq_exit_rcu+0x97/0xc0 [ 52.047733][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.047936][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.048138][ C1] default_idle+0xf/0x20 [ 52.048417][ C1] default_idle_call+0x6d/0xb0 [ 52.048591][ C1] cpuidle_idle_call+0x1f4/0x280 [ 52.048810][ C1] do_idle+0xf9/0x160 [ 52.048981][ C1] cpu_startup_entry+0x54/0x60 [ 52.049193][ C1] start_secondary+0x21c/0x2b0 [ 52.049420][ C1] common_startup_64+0x12c/0x138 [ 52.049832][ C1] [ 52.049904][ C1] [ 52.049904][ C1] stack backtrace: [ 52.050078][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 52.050292][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 52.050596][ C1] Call Trace: [ 52.050702][ C1] [ 52.050869][ C1] dump_stack_lvl+0x82/0xd0 [ 52.051005][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 52.051170][ C1] ? common_startup_64+0x12c/0x138 [ 52.051305][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 52.051561][ C1] ? __pfx_usage_skip+0x10/0x10 [ 52.051697][ C1] ? __pfx_usage_match+0x10/0x10 [ 52.051828][ C1] ? arch_stack_walk+0x8c/0xf0 [ 52.051961][ C1] mark_lock_irq+0x4cd/0xa10 [ 52.052099][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 52.052231][ C1] ? stack_trace_save+0x94/0xd0 [ 52.052450][ C1] ? save_trace+0x8f/0x5b0 [ 52.052594][ C1] mark_lock+0x28d/0x3e0 [ 52.052704][ C1] mark_usage+0xd9/0x2a0 [ 52.052813][ C1] __lock_acquire+0x797/0x1570 [ 52.052962][ C1] ? __lock_acquire+0xaf0/0x1570 [ 52.053119][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 52.053364][ C1] lock_acquire.part.0+0xeb/0x330 [ 52.053578][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.053871][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 52.054004][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 52.054137][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.054341][ C1] ? lock_acquire+0x32/0xc0 [ 52.054473][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.054680][ C1] _raw_spin_lock+0x30/0x40 [ 52.054814][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.055096][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 52.055309][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 52.055556][ C1] call_timer_fn+0x13b/0x230 [ 52.055795][ C1] ? call_timer_fn+0xe8/0x230 [ 52.055939][ C1] ? call_timer_fn+0xe8/0x230 [ 52.056085][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 52.056226][ C1] ? mark_lock+0x38/0x3e0 [ 52.056333][ C1] __run_timers+0x545/0x810 [ 52.056559][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 52.056797][ C1] ? __pfx___run_timers+0x10/0x10 [ 52.056932][ C1] ? do_raw_spin_lock+0x131/0x270 [ 52.057156][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 52.057289][ C1] ? lock_acquire+0x32/0xc0 [ 52.057426][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 52.057564][ C1] run_timer_softirq+0xe8/0x1b0 [ 52.057698][ C1] __do_softirq+0x1f8/0x5df [ 52.057913][ C1] irq_exit_rcu+0x97/0xc0 [ 52.058016][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 52.058149][ C1] [ 52.058217][ C1] [ 52.058289][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 52.058569][ C1] RIP: 0010:default_idle+0xf/0x20 [ 52.058733][ 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 [ 52.059372][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 52.059556][ C1] RAX: 00000000000ceb7b RBX: 1ffff92000029fc1 RCX: ffffffff92f0e9d5 [ 52.059932][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff908aa4a4 [ 52.060156][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 52.060371][ C1] R10: ffff8880360b84e3 R11: ffff8880360bdc80 R12: 0000000000000000 [ 52.060669][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 52.060982][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 52.061129][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 52.061285][ C1] default_idle_call+0x6d/0xb0 [ 52.061450][ C1] cpuidle_idle_call+0x1f4/0x280 [ 52.061605][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 52.061762][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 52.062010][ C1] do_idle+0xf9/0x160 [ 52.062124][ C1] cpu_startup_entry+0x54/0x60 [ 52.062270][ C1] start_secondary+0x21c/0x2b0 [ 52.062419][ C1] ? __pfx_start_secondary+0x10/0x10 [ 52.062565][ C1] common_startup_64+0x12c/0x138 [ 52.062720][ C1] [ 118.145973][ T612] br11: port 2(veth2.11) entered disabled state [ 118.146466][ T612] br11: port 1(veth1.11) entered disabled state [ 118.255449][ T613] br10: port 2(veth2.10) entered disabled state [ 118.255896][ T613] br10: port 1(veth1.10) entered disabled state [ 118.464654][ T615] veth2.11: left allmulticast mode [ 118.464852][ T615] veth2.11: left promiscuous mode [ 118.465153][ T615] br11: port 2(veth2.11) entered disabled state [ 118.708300][ T617] veth2: left allmulticast mode [ 118.708541][ T617] veth2: left promiscuous mode [ 118.811787][ T620] veth2.10: left allmulticast mode [ 118.811977][ T620] veth2.10: left promiscuous mode [ 118.812269][ T620] br10: port 2(veth2.10) entered disabled state [ 119.390492][ T625] veth1.11: left allmulticast mode [ 119.390720][ T625] veth1.11: left promiscuous mode [ 119.391059][ T625] br11: port 1(veth1.11) entered disabled state [ 119.623274][ T627] veth1: left allmulticast mode [ 119.623474][ T627] veth1: left promiscuous mode [ 119.725820][ T628] veth1.10: left allmulticast mode [ 119.726020][ T628] veth1.10: left promiscuous mode [ 119.726272][ T628] br10: port 1(veth1.10) entered disabled state