[ 24.025057][ T236] ip (236) used greatest stack depth: 23968 bytes left [ 27.123778][ T282] 8021q: 802.1Q VLAN Support v1.8 [ 30.906818][ T324] GACT probability NOT on [ 32.124780][ T338] ip (338) used greatest stack depth: 23760 bytes left [ 32.219005][ T340] br10: port 1(veth1.10) entered blocking state [ 32.219411][ T340] br10: port 1(veth1.10) entered disabled state [ 32.219895][ T340] veth1.10: entered allmulticast mode [ 32.220053][ T340] veth1: entered allmulticast mode [ 32.223459][ T340] veth1.10: entered promiscuous mode [ 32.223635][ T340] veth1: entered promiscuous mode [ 32.689764][ T345] br11: port 1(veth1.11) entered blocking state [ 32.690182][ T345] br11: port 1(veth1.11) entered disabled state [ 32.690434][ T345] veth1.11: entered allmulticast mode [ 32.692415][ T345] veth1.11: entered promiscuous mode [ 33.512659][ T355] br10: port 2(veth2.10) entered blocking state [ 33.512931][ T355] br10: port 2(veth2.10) entered disabled state [ 33.513214][ T355] veth2.10: entered allmulticast mode [ 33.513395][ T355] veth2: entered allmulticast mode [ 33.515469][ T355] veth2.10: entered promiscuous mode [ 33.515680][ T355] veth2: entered promiscuous mode [ 34.046718][ T360] br11: port 2(veth2.11) entered blocking state [ 34.047006][ T360] br11: port 2(veth2.11) entered disabled state [ 34.047295][ T360] veth2.11: entered allmulticast mode [ 34.049132][ T360] veth2.11: entered promiscuous mode [ 34.533676][ T364] br10: port 2(veth2.10) entered blocking state [ 34.534026][ T364] br10: port 2(veth2.10) entered forwarding state [ 34.534792][ T364] br10: port 1(veth1.10) entered blocking state [ 34.535020][ T364] br10: port 1(veth1.10) entered forwarding state [ 34.548665][ T364] ip (364) used greatest stack depth: 23664 bytes left [ 34.668918][ T365] br11: port 2(veth2.11) entered blocking state [ 34.669206][ T365] br11: port 2(veth2.11) entered forwarding state [ 34.669628][ T365] br11: port 1(veth1.11) entered blocking state [ 34.669850][ T365] br11: port 1(veth1.11) entered forwarding state [ 49.961230][ C1] [ 49.961334][ C1] ======================================================== [ 49.961548][ C1] WARNING: possible irq lock inversion dependency detected [ 49.961761][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 49.961895][ C1] -------------------------------------------------------- [ 49.962095][ C1] swapper/1/0 just changed the state of lock: [ 49.962266][ C1] ffff888006102c38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.962628][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 49.962839][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 49.962843][ C1] [ 49.962843][ C1] [ 49.962843][ C1] and interrupts could create inverse lock ordering between them. [ 49.962843][ C1] [ 49.963347][ C1] [ 49.963347][ C1] other info that might help us debug this: [ 49.963552][ C1] Chain exists of: [ 49.963552][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 49.963552][ C1] [ 49.963849][ C1] Possible interrupt unsafe locking scenario: [ 49.963849][ C1] [ 49.964051][ C1] CPU0 CPU1 [ 49.964185][ C1] ---- ---- [ 49.964326][ C1] lock(&p->alloc_lock); [ 49.964429][ C1] local_irq_disable(); [ 49.964589][ C1] lock(&br->lock); [ 49.964762][ C1] lock(lweventlist_lock); [ 49.964937][ C1] [ 49.965051][ C1] lock(&br->lock); [ 49.965157][ C1] [ 49.965157][ C1] *** DEADLOCK *** [ 49.965157][ C1] [ 49.965355][ C1] 1 lock held by swapper/1/0: [ 49.965490][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 49.965780][ C1] [ 49.965780][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 49.966013][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 49.966163][ C1] HARDIRQ-ON-W at: [ 49.966268][ C1] __lock_acquire+0x797/0x1570 [ 49.966450][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.966628][ C1] _raw_spin_lock+0x30/0x40 [ 49.966801][ C1] set_mems_allowed+0x1d/0x210 [ 49.966972][ C1] kernel_init_freeable+0x72/0x310 [ 49.967153][ C1] kernel_init+0x20/0x200 [ 49.967324][ C1] ret_from_fork+0x31/0x70 [ 49.967499][ C1] ret_from_fork_asm+0x1a/0x30 [ 49.967681][ C1] SOFTIRQ-ON-W at: [ 49.967783][ C1] __lock_acquire+0x797/0x1570 [ 49.967954][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.968123][ C1] _raw_spin_lock+0x30/0x40 [ 49.968295][ C1] set_mems_allowed+0x1d/0x210 [ 49.968467][ C1] kernel_init_freeable+0x72/0x310 [ 49.968639][ C1] kernel_init+0x20/0x200 [ 49.968815][ C1] ret_from_fork+0x31/0x70 [ 49.968987][ C1] ret_from_fork_asm+0x1a/0x30 [ 49.969159][ C1] INITIAL USE at: [ 49.969264][ C1] __lock_acquire+0x797/0x1570 [ 49.969434][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.969608][ C1] _raw_spin_lock+0x30/0x40 [ 49.969778][ C1] set_mems_allowed+0x1d/0x210 [ 49.969951][ C1] kernel_init_freeable+0x72/0x310 [ 49.970128][ C1] kernel_init+0x20/0x200 [ 49.970297][ C1] ret_from_fork+0x31/0x70 [ 49.970470][ C1] ret_from_fork_asm+0x1a/0x30 [ 49.970646][ C1] } [ 49.970717][ C1] ... key at: [] __key.387+0x0/0x40 [ 49.970921][ C1] ... acquired at: [ 49.971024][ C1] __lock_acquire+0xaf0/0x1570 [ 49.971162][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.971380][ C1] _raw_spin_lock+0x30/0x40 [ 49.971526][ C1] __get_task_comm+0x27/0x70 [ 49.971663][ C1] ref_tracker_alloc+0x2ee/0x490 [ 49.971802][ C1] linkwatch_fire_event+0x196/0x200 [ 49.971948][ C1] veth_newlink+0x367/0x830 [veth] [ 49.972098][ C1] rtnl_newlink_create+0x341/0x850 [ 49.972327][ C1] __rtnl_newlink+0xac9/0xd80 [ 49.972462][ C1] rtnl_newlink+0x63/0xa0 [ 49.972599][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.972735][ C1] netlink_rcv_skb+0x130/0x360 [ 49.972870][ C1] netlink_unicast+0x449/0x710 [ 49.973002][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.973221][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 49.973447][ C1] ___sys_sendmsg+0xee/0x170 [ 49.973659][ C1] __sys_sendmsg+0xcd/0x170 [ 49.973879][ C1] do_syscall_64+0xc6/0x1e0 [ 49.974097][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.974350][ C1] [ 49.974422][ C1] -> (lweventlist_lock){....}-{2:2} { [ 49.974562][ C1] INITIAL USE at: [ 49.974665][ C1] __lock_acquire+0x797/0x1570 [ 49.974926][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.975102][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 49.975274][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 49.975447][ C1] rtnl_getlink+0x4c9/0x970 [ 49.975699][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.975880][ C1] netlink_rcv_skb+0x130/0x360 [ 49.976051][ C1] netlink_unicast+0x449/0x710 [ 49.976304][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.976474][ C1] __sys_sendto+0x37d/0x410 [ 49.976647][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 49.976820][ C1] do_syscall_64+0xc6/0x1e0 [ 49.977071][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.977275][ C1] } [ 49.977422][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 49.977630][ C1] ... acquired at: [ 49.977818][ C1] __lock_acquire+0xaf0/0x1570 [ 49.977963][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.978097][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 49.978233][ C1] linkwatch_fire_event+0x74/0x200 [ 49.978453][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 49.978676][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 49.978876][ C1] dev_set_mac_address+0x28a/0x410 [ 49.979100][ C1] dev_set_mac_address_user+0x31/0x50 [ 49.979237][ C1] do_setlink+0x17b4/0x21e0 [ 49.979373][ C1] rtnl_setlink+0x1f7/0x310 [ 49.979506][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.979639][ C1] netlink_rcv_skb+0x130/0x360 [ 49.979855][ C1] netlink_unicast+0x449/0x710 [ 49.980000][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.980135][ C1] __sys_sendto+0x37d/0x410 [ 49.980269][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 49.980485][ C1] do_syscall_64+0xc6/0x1e0 [ 49.980616][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.980786][ C1] [ 49.980850][ C1] -> (&br->lock){+.-.}-{2:2} { [ 49.981070][ C1] HARDIRQ-ON-W at: [ 49.981184][ C1] __lock_acquire+0x797/0x1570 [ 49.981436][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.981603][ C1] _raw_spin_lock_bh+0x38/0x50 [ 49.981777][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 49.982094][ C1] dev_set_mac_address+0x28a/0x410 [ 49.982268][ C1] dev_set_mac_address_user+0x31/0x50 [ 49.982442][ C1] do_setlink+0x17b4/0x21e0 [ 49.982695][ C1] rtnl_setlink+0x1f7/0x310 [ 49.982865][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.983031][ C1] netlink_rcv_skb+0x130/0x360 [ 49.983282][ C1] netlink_unicast+0x449/0x710 [ 49.983469][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.983639][ C1] __sys_sendto+0x37d/0x410 [ 49.983817][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 49.983984][ C1] do_syscall_64+0xc6/0x1e0 [ 49.984152][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.984439][ C1] IN-SOFTIRQ-W at: [ 49.984540][ C1] __lock_acquire+0x797/0x1570 [ 49.984713][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.984881][ C1] _raw_spin_lock+0x30/0x40 [ 49.985048][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.985383][ C1] call_timer_fn+0x13b/0x230 [ 49.985548][ C1] __run_timers+0x545/0x810 [ 49.985889][ C1] run_timer_softirq+0xe8/0x1b0 [ 49.986058][ C1] __do_softirq+0x1f8/0x5df [ 49.986230][ C1] irq_exit_rcu+0x97/0xc0 [ 49.986488][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 49.986690][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 49.986975][ C1] default_idle+0xf/0x20 [ 49.987148][ C1] default_idle_call+0x6d/0xb0 [ 49.987336][ C1] cpuidle_idle_call+0x1f4/0x280 [ 49.987591][ C1] do_idle+0xf9/0x160 [ 49.987724][ C1] cpu_startup_entry+0x54/0x60 [ 49.987971][ C1] start_secondary+0x21c/0x2b0 [ 49.988144][ C1] common_startup_64+0x12c/0x138 [ 49.988313][ C1] INITIAL USE at: [ 49.988420][ C1] __lock_acquire+0x797/0x1570 [ 49.988670][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.988842][ C1] _raw_spin_lock_bh+0x38/0x50 [ 49.989015][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 49.989333][ C1] dev_set_mac_address+0x28a/0x410 [ 49.989501][ C1] dev_set_mac_address_user+0x31/0x50 [ 49.989668][ C1] do_setlink+0x17b4/0x21e0 [ 49.989849][ C1] rtnl_setlink+0x1f7/0x310 [ 49.990091][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 49.990338][ C1] netlink_rcv_skb+0x130/0x360 [ 49.990509][ C1] netlink_unicast+0x449/0x710 [ 49.990686][ C1] netlink_sendmsg+0x723/0xbe0 [ 49.990860][ C1] __sys_sendto+0x37d/0x410 [ 49.991115][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 49.991281][ C1] do_syscall_64+0xc6/0x1e0 [ 49.991451][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 49.991739][ C1] } [ 49.991807][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 49.992155][ C1] ... acquired at: [ 49.992264][ C1] mark_lock+0x28d/0x3e0 [ 49.992399][ C1] mark_usage+0xd9/0x2a0 [ 49.992542][ C1] __lock_acquire+0x797/0x1570 [ 49.992759][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.992895][ C1] _raw_spin_lock+0x30/0x40 [ 49.993032][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.993331][ C1] call_timer_fn+0x13b/0x230 [ 49.993467][ C1] __run_timers+0x545/0x810 [ 49.993686][ C1] run_timer_softirq+0xe8/0x1b0 [ 49.993823][ C1] __do_softirq+0x1f8/0x5df [ 49.993959][ C1] irq_exit_rcu+0x97/0xc0 [ 49.994181][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 49.994345][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 49.994515][ C1] default_idle+0xf/0x20 [ 49.994653][ C1] default_idle_call+0x6d/0xb0 [ 49.994873][ C1] cpuidle_idle_call+0x1f4/0x280 [ 49.995011][ C1] do_idle+0xf9/0x160 [ 49.995198][ C1] cpu_startup_entry+0x54/0x60 [ 49.995336][ C1] start_secondary+0x21c/0x2b0 [ 49.995469][ C1] common_startup_64+0x12c/0x138 [ 49.995689][ C1] [ 49.995758][ C1] [ 49.995758][ C1] stack backtrace: [ 49.995931][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 49.996143][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 49.996520][ C1] Call Trace: [ 49.996624][ C1] [ 49.996694][ C1] dump_stack_lvl+0x82/0xd0 [ 49.996842][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 49.997094][ C1] ? common_startup_64+0x12c/0x138 [ 49.997228][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 49.997395][ C1] ? __pfx_usage_skip+0x10/0x10 [ 49.997680][ C1] ? __pfx_usage_match+0x10/0x10 [ 49.997814][ C1] ? arch_stack_walk+0x8c/0xf0 [ 49.997946][ C1] mark_lock_irq+0x4cd/0xa10 [ 49.998074][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 49.998210][ C1] ? stack_trace_save+0x94/0xd0 [ 49.998349][ C1] ? add_chain_cache+0x248/0x8b0 [ 49.998569][ C1] ? save_trace+0x8f/0x5b0 [ 49.998705][ C1] mark_lock+0x28d/0x3e0 [ 49.998806][ C1] mark_usage+0xd9/0x2a0 [ 49.998912][ C1] __lock_acquire+0x797/0x1570 [ 49.999049][ C1] ? __lock_acquire+0xaf0/0x1570 [ 49.999266][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 49.999503][ C1] lock_acquire.part.0+0xeb/0x330 [ 49.999638][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 49.999847][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 49.999981][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 50.000199][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.000410][ C1] ? lock_acquire+0x32/0xc0 [ 50.000542][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.000745][ C1] _raw_spin_lock+0x30/0x40 [ 50.000879][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.001172][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 50.001378][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 50.001619][ C1] call_timer_fn+0x13b/0x230 [ 50.001765][ C1] ? call_timer_fn+0xe8/0x230 [ 50.001986][ C1] ? call_timer_fn+0xe8/0x230 [ 50.002121][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 50.002266][ C1] ? mark_lock+0x38/0x3e0 [ 50.002376][ C1] __run_timers+0x545/0x810 [ 50.002515][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 50.002830][ C1] ? __pfx___run_timers+0x10/0x10 [ 50.002966][ C1] ? do_raw_spin_lock+0x131/0x270 [ 50.003112][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 50.003249][ C1] ? lock_acquire+0x32/0xc0 [ 50.003479][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 50.003617][ C1] run_timer_softirq+0xe8/0x1b0 [ 50.003769][ C1] __do_softirq+0x1f8/0x5df [ 50.003904][ C1] irq_exit_rcu+0x97/0xc0 [ 50.004009][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 50.004230][ C1] [ 50.004302][ C1] [ 50.004367][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 50.004537][ C1] RIP: 0010:default_idle+0xf/0x20 [ 50.004678][ 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 [ 50.005247][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000242 [ 50.005425][ C1] RAX: 00000000000e4713 RBX: 1ffff92000029fc1 RCX: ffffffff8610e9d5 [ 50.005622][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83aaa4a4 [ 50.005911][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005f1709c [ 50.006201][ C1] R10: ffff88802f8b84e3 R11: ffff88802f8bdc80 R12: 0000000000000000 [ 50.006400][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 50.006611][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 50.006751][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 50.006973][ C1] default_idle_call+0x6d/0xb0 [ 50.007111][ C1] cpuidle_idle_call+0x1f4/0x280 [ 50.007248][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 50.007382][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 50.007514][ C1] do_idle+0xf9/0x160 [ 50.007616][ C1] cpu_startup_entry+0x54/0x60 [ 50.007824][ C1] start_secondary+0x21c/0x2b0 [ 50.007957][ C1] ? __pfx_start_secondary+0x10/0x10 [ 50.008101][ C1] common_startup_64+0x12c/0x138 [ 50.008240][ C1] [ 61.649711][ T448] br11: port 2(veth2.11) entered disabled state [ 61.650084][ T448] br11: port 1(veth1.11) entered disabled state [ 61.758370][ T449] br10: port 2(veth2.10) entered disabled state [ 61.758845][ T449] br10: port 1(veth1.10) entered disabled state [ 61.962258][ T451] veth2.11: left allmulticast mode [ 61.962435][ T451] veth2.11: left promiscuous mode [ 61.962700][ T451] br11: port 2(veth2.11) entered disabled state [ 62.197694][ T453] veth2: left allmulticast mode [ 62.197891][ T453] veth2: left promiscuous mode [ 62.299495][ T456] veth2.10: left allmulticast mode [ 62.299675][ T456] veth2.10: left promiscuous mode [ 62.299927][ T456] br10: port 2(veth2.10) entered disabled state [ 62.817343][ T461] veth1.11: left allmulticast mode [ 62.817523][ T461] veth1.11: left promiscuous mode [ 62.817771][ T461] br11: port 1(veth1.11) entered disabled state [ 63.065324][ T463] veth1: left allmulticast mode [ 63.065653][ T463] veth1: left promiscuous mode [ 63.168944][ T464] veth1.10: left allmulticast mode [ 63.170214][ T464] veth1.10: left promiscuous mode [ 63.170612][ T464] br10: port 1(veth1.10) entered disabled state