[ 24.814752][ T235] ip (235) used greatest stack depth: 23200 bytes left [ 27.388814][ T272] 8021q: 802.1Q VLAN Support v1.8 [ 30.163173][ T299] br1: port 1(veth1) entered blocking state [ 30.163551][ T299] br1: port 1(veth1) entered disabled state [ 30.164781][ T299] veth1: entered allmulticast mode [ 30.166651][ T299] veth1: entered promiscuous mode [ 30.294114][ T49] br1: port 1(veth1) entered blocking state [ 30.294543][ T49] br1: port 1(veth1) entered forwarding state [ 35.651086][ C3] [ 35.651250][ C3] ======================================================== [ 35.651482][ C3] WARNING: possible irq lock inversion dependency detected [ 35.651701][ C3] 6.9.0-rc1-virtme #1 Not tainted [ 35.651836][ C3] -------------------------------------------------------- [ 35.652099][ C3] swapper/3/0 just changed the state of lock: [ 35.652282][ C3] ffff888007db8d80 (&ndev->lock){++-.}-{2:2}, at: addrconf_rs_timer+0xa9/0x730 [ 35.652546][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 35.652748][ C3] (&p->alloc_lock){+.+.}-{2:2} [ 35.652752][ C3] [ 35.652752][ C3] [ 35.652752][ C3] and interrupts could create inverse lock ordering between them. [ 35.652752][ C3] [ 35.653273][ C3] [ 35.653273][ C3] other info that might help us debug this: [ 35.653479][ C3] Possible interrupt unsafe locking scenario: [ 35.653479][ C3] [ 35.653683][ C3] CPU0 CPU1 [ 35.653840][ C3] ---- ---- [ 35.653984][ C3] lock(&p->alloc_lock); [ 35.654104][ C3] local_irq_disable(); [ 35.654273][ C3] lock(&ndev->lock); [ 35.654466][ C3] lock(&p->alloc_lock); [ 35.654647][ C3] [ 35.654760][ C3] lock(&ndev->lock); [ 35.654875][ C3] [ 35.654875][ C3] *** DEADLOCK *** [ 35.654875][ C3] [ 35.655089][ C3] 1 lock held by swapper/3/0: [ 35.655229][ C3] #0: ffffc90000288d68 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 35.655487][ C3] [ 35.655487][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 35.655723][ C3] -> (&p->alloc_lock){+.+.}-{2:2} { [ 35.655872][ C3] HARDIRQ-ON-W at: [ 35.655990][ C3] __lock_acquire+0x797/0x1570 [ 35.656166][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.656350][ C3] _raw_spin_lock+0x30/0x40 [ 35.656524][ C3] set_mems_allowed+0x1d/0x210 [ 35.656714][ C3] kernel_init_freeable+0x72/0x310 [ 35.656890][ C3] kernel_init+0x20/0x200 [ 35.657080][ C3] ret_from_fork+0x31/0x70 [ 35.657249][ C3] ret_from_fork_asm+0x1a/0x30 [ 35.657448][ C3] SOFTIRQ-ON-W at: [ 35.657548][ C3] __lock_acquire+0x797/0x1570 [ 35.657733][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.657900][ C3] _raw_spin_lock+0x30/0x40 [ 35.658112][ C3] set_mems_allowed+0x1d/0x210 [ 35.658282][ C3] kernel_init_freeable+0x72/0x310 [ 35.658448][ C3] kernel_init+0x20/0x200 [ 35.658612][ C3] ret_from_fork+0x31/0x70 [ 35.658786][ C3] ret_from_fork_asm+0x1a/0x30 [ 35.658951][ C3] INITIAL USE at: [ 35.659058][ C3] __lock_acquire+0x797/0x1570 [ 35.659245][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.659421][ C3] _raw_spin_lock+0x30/0x40 [ 35.659596][ C3] set_mems_allowed+0x1d/0x210 [ 35.659771][ C3] kernel_init_freeable+0x72/0x310 [ 35.659954][ C3] kernel_init+0x20/0x200 [ 35.660120][ C3] ret_from_fork+0x31/0x70 [ 35.660327][ C3] ret_from_fork_asm+0x1a/0x30 [ 35.660492][ C3] } [ 35.660582][ C3] ... key at: [] __key.387+0x0/0x40 [ 35.660785][ C3] ... acquired at: [ 35.660901][ C3] __lock_acquire+0xaf0/0x1570 [ 35.661039][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.661188][ C3] _raw_spin_lock+0x30/0x40 [ 35.661322][ C3] __get_task_comm+0x27/0x70 [ 35.661468][ C3] ref_tracker_alloc+0x2ee/0x490 [ 35.661611][ C3] netdev_get_by_index+0x5e/0x80 [ 35.661748][ C3] fib6_nh_init+0x3d8/0x15b0 [ 35.661890][ C3] ip6_route_info_create+0xf18/0x17d0 [ 35.662045][ C3] addrconf_f6i_alloc+0x265/0x560 [ 35.662178][ C3] __ipv6_dev_ac_inc+0x25f/0xb10 [ 35.662313][ C3] addrconf_join_anycast+0x1c0/0x220 [ 35.662473][ C3] dev_forward_change+0x2a6/0x7b0 [ 35.662606][ C3] addrconf_fixup_forwarding+0x23f/0x460 [ 35.662777][ C3] addrconf_sysctl_forward+0x212/0x2b0 [ 35.662918][ C3] proc_sys_call_handler+0x403/0x5e0 [ 35.663058][ C3] vfs_write+0x9e5/0x10a0 [ 35.663199][ C3] ksys_write+0xf5/0x1e0 [ 35.663333][ C3] do_syscall_64+0xc6/0x1e0 [ 35.663466][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.663637][ C3] [ 35.663710][ C3] -> (&ndev->lock){++-.}-{2:2} { [ 35.663870][ C3] HARDIRQ-ON-W at: [ 35.663972][ C3] __lock_acquire+0x797/0x1570 [ 35.664145][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.664325][ C3] _raw_write_lock_bh+0x38/0x50 [ 35.664499][ C3] addrconf_permanent_addr+0x6e/0x670 [ 35.664668][ C3] addrconf_notify+0x749/0xd60 [ 35.664853][ C3] notifier_call_chain+0xcd/0x150 [ 35.665020][ C3] __dev_notify_flags+0xe6/0x250 [ 35.665187][ C3] dev_change_flags+0xec/0x160 [ 35.665356][ C3] do_setlink+0x7d6/0x21e0 [ 35.665522][ C3] __rtnl_newlink+0xaa7/0xd80 [ 35.665690][ C3] rtnl_newlink+0x63/0xa0 [ 35.665861][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 35.666027][ C3] netlink_rcv_skb+0x130/0x360 [ 35.666196][ C3] netlink_unicast+0x449/0x710 [ 35.666361][ C3] netlink_sendmsg+0x723/0xbe0 [ 35.666528][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 35.666698][ C3] ___sys_sendmsg+0xee/0x170 [ 35.666870][ C3] __sys_sendmsg+0xcd/0x170 [ 35.667041][ C3] do_syscall_64+0xc6/0x1e0 [ 35.667210][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.667411][ C3] HARDIRQ-ON-R at: [ 35.667511][ C3] __lock_acquire+0x797/0x1570 [ 35.667683][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.667849][ C3] _raw_read_lock_bh+0x44/0x80 [ 35.668016][ C3] inet6_fill_ifla6_attrs+0x516/0x740 [ 35.668202][ C3] inet6_fill_link_af+0x5e/0xe0 [ 35.668371][ C3] rtnl_fill_ifinfo+0x1612/0x29e0 [ 35.668536][ C3] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 35.668704][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 35.668905][ C3] rtmsg_ifinfo+0x5b/0xa0 [ 35.669075][ C3] register_netdevice+0x1177/0x1690 [ 35.669240][ C3] register_netdev+0x20/0x40 [ 35.669408][ C3] sit_init_net+0x250/0x4f0 [ 35.669575][ C3] ops_init+0x9b/0x560 [ 35.669713][ C3] register_pernet_operations+0x2db/0x710 [ 35.669911][ C3] register_pernet_device+0x2a/0x60 [ 35.670080][ C3] sit_init+0x23/0xe0 [ 35.670215][ C3] do_one_initcall+0x8d/0x1e0 [ 35.670380][ C3] do_initcalls+0x1b2/0x3e0 [ 35.670549][ C3] kernel_init_freeable+0x232/0x310 [ 35.670718][ C3] kernel_init+0x20/0x200 [ 35.670908][ C3] ret_from_fork+0x31/0x70 [ 35.671080][ C3] ret_from_fork_asm+0x1a/0x30 [ 35.671279][ C3] IN-SOFTIRQ-W at: [ 35.671378][ C3] __lock_acquire+0x797/0x1570 [ 35.671561][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.671732][ C3] _raw_write_lock+0x30/0x40 [ 35.671917][ C3] addrconf_rs_timer+0xa9/0x730 [ 35.672107][ C3] call_timer_fn+0x13b/0x230 [ 35.672275][ C3] __run_timers+0x545/0x810 [ 35.672444][ C3] run_timer_softirq+0xe8/0x1b0 [ 35.672610][ C3] __do_softirq+0x1f8/0x5df [ 35.672799][ C3] irq_exit_rcu+0x97/0xc0 [ 35.672971][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 35.673187][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 35.673392][ C3] default_idle+0xf/0x20 [ 35.673566][ C3] default_idle_call+0x6d/0xb0 [ 35.673733][ C3] cpuidle_idle_call+0x1f4/0x280 [ 35.673899][ C3] do_idle+0xf9/0x160 [ 35.674030][ C3] cpu_startup_entry+0x54/0x60 [ 35.674197][ C3] start_secondary+0x21c/0x2b0 [ 35.674363][ C3] common_startup_64+0x12c/0x138 [ 35.674530][ C3] INITIAL USE at: [ 35.674629][ C3] __lock_acquire+0x797/0x1570 [ 35.674813][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.674978][ C3] _raw_write_lock_bh+0x38/0x50 [ 35.675162][ C3] addrconf_permanent_addr+0x6e/0x670 [ 35.675360][ C3] addrconf_notify+0x749/0xd60 [ 35.675526][ C3] notifier_call_chain+0xcd/0x150 [ 35.675712][ C3] __dev_notify_flags+0xe6/0x250 [ 35.675877][ C3] dev_change_flags+0xec/0x160 [ 35.676062][ C3] do_setlink+0x7d6/0x21e0 [ 35.676248][ C3] __rtnl_newlink+0xaa7/0xd80 [ 35.676418][ C3] rtnl_newlink+0x63/0xa0 [ 35.676584][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 35.676753][ C3] netlink_rcv_skb+0x130/0x360 [ 35.676919][ C3] netlink_unicast+0x449/0x710 [ 35.677086][ C3] netlink_sendmsg+0x723/0xbe0 [ 35.677251][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 35.677416][ C3] ___sys_sendmsg+0xee/0x170 [ 35.677582][ C3] __sys_sendmsg+0xcd/0x170 [ 35.677755][ C3] do_syscall_64+0xc6/0x1e0 [ 35.677922][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 35.678184][ C3] INITIAL READ USE at: [ 35.678286][ C3] __lock_acquire+0x797/0x1570 [ 35.678454][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.678637][ C3] _raw_read_lock_bh+0x44/0x80 [ 35.678808][ C3] inet6_fill_ifla6_attrs+0x516/0x740 [ 35.679013][ C3] inet6_fill_link_af+0x5e/0xe0 [ 35.679177][ C3] rtnl_fill_ifinfo+0x1612/0x29e0 [ 35.679341][ C3] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 35.679541][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 35.679745][ C3] rtmsg_ifinfo+0x5b/0xa0 [ 35.679910][ C3] register_netdevice+0x1177/0x1690 [ 35.680126][ C3] register_netdev+0x20/0x40 [ 35.680303][ C3] sit_init_net+0x250/0x4f0 [ 35.680470][ C3] ops_init+0x9b/0x560 [ 35.680635][ C3] register_pernet_operations+0x2db/0x710 [ 35.680834][ C3] register_pernet_device+0x2a/0x60 [ 35.681029][ C3] sit_init+0x23/0xe0 [ 35.681199][ C3] do_one_initcall+0x8d/0x1e0 [ 35.681381][ C3] do_initcalls+0x1b2/0x3e0 [ 35.681547][ C3] kernel_init_freeable+0x232/0x310 [ 35.681751][ C3] kernel_init+0x20/0x200 [ 35.681917][ C3] ret_from_fork+0x31/0x70 [ 35.682084][ C3] ret_from_fork_asm+0x1a/0x30 [ 35.682253][ C3] } [ 35.682324][ C3] ... key at: [] __key.37+0x0/0x40 [ 35.682523][ C3] ... acquired at: [ 35.682636][ C3] mark_lock+0x28d/0x3e0 [ 35.682775][ C3] mark_usage+0xd9/0x2a0 [ 35.682909][ C3] __lock_acquire+0x797/0x1570 [ 35.683043][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.683175][ C3] _raw_write_lock+0x30/0x40 [ 35.683306][ C3] addrconf_rs_timer+0xa9/0x730 [ 35.683444][ C3] call_timer_fn+0x13b/0x230 [ 35.683576][ C3] __run_timers+0x545/0x810 [ 35.683718][ C3] run_timer_softirq+0xe8/0x1b0 [ 35.683868][ C3] __do_softirq+0x1f8/0x5df [ 35.683999][ C3] irq_exit_rcu+0x97/0xc0 [ 35.684149][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 35.684312][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 35.684484][ C3] default_idle+0xf/0x20 [ 35.684622][ C3] default_idle_call+0x6d/0xb0 [ 35.684778][ C3] cpuidle_idle_call+0x1f4/0x280 [ 35.684910][ C3] do_idle+0xf9/0x160 [ 35.685030][ C3] cpu_startup_entry+0x54/0x60 [ 35.685163][ C3] start_secondary+0x21c/0x2b0 [ 35.685335][ C3] common_startup_64+0x12c/0x138 [ 35.685467][ C3] [ 35.685535][ C3] [ 35.685535][ C3] stack backtrace: [ 35.685698][ C3] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 6.9.0-rc1-virtme #1 [ 35.685926][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.686233][ C3] Call Trace: [ 35.686333][ C3] [ 35.686419][ C3] dump_stack_lvl+0x82/0xd0 [ 35.686566][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 35.686751][ C3] ? kernel_text_address+0x17/0xe0 [ 35.686886][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 35.687072][ C3] ? __pfx_usage_skip+0x10/0x10 [ 35.687205][ C3] ? __pfx_usage_match+0x10/0x10 [ 35.687346][ C3] ? arch_stack_walk+0x8c/0xf0 [ 35.687497][ C3] mark_lock_irq+0x4cd/0xa10 [ 35.687631][ C3] ? common_startup_64+0x12c/0x138 [ 35.687793][ C3] ? __pfx_mark_lock_irq+0x10/0x10 [ 35.687932][ C3] ? __pfx_stack_trace_save+0x10/0x10 [ 35.688086][ C3] ? save_trace+0x8f/0x5b0 [ 35.688229][ C3] mark_lock+0x28d/0x3e0 [ 35.688332][ C3] ? __pfx_stack_trace_save+0x10/0x10 [ 35.688479][ C3] mark_usage+0xd9/0x2a0 [ 35.688579][ C3] __lock_acquire+0x797/0x1570 [ 35.688717][ C3] ? __pfx_validate_chain+0x10/0x10 [ 35.688849][ C3] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 35.688982][ C3] lock_acquire.part.0+0xeb/0x330 [ 35.689115][ C3] ? addrconf_rs_timer+0xa9/0x730 [ 35.689252][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 35.689383][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 35.689516][ C3] ? addrconf_rs_timer+0xa9/0x730 [ 35.689646][ C3] ? lock_acquire+0x32/0xc0 [ 35.689782][ C3] ? addrconf_rs_timer+0xa9/0x730 [ 35.689914][ C3] _raw_write_lock+0x30/0x40 [ 35.690057][ C3] ? addrconf_rs_timer+0xa9/0x730 [ 35.690206][ C3] addrconf_rs_timer+0xa9/0x730 [ 35.690340][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 35.690508][ C3] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 35.690641][ C3] ? call_timer_fn+0xe8/0x230 [ 35.690801][ C3] ? lock_acquire+0x32/0xc0 [ 35.690933][ C3] ? call_timer_fn+0xe8/0x230 [ 35.691066][ C3] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 35.691214][ C3] call_timer_fn+0x13b/0x230 [ 35.691347][ C3] ? call_timer_fn+0xe8/0x230 [ 35.691498][ C3] ? call_timer_fn+0xe8/0x230 [ 35.691633][ C3] ? __pfx_call_timer_fn+0x10/0x10 [ 35.691777][ C3] ? mark_lock+0x38/0x3e0 [ 35.691883][ C3] __run_timers+0x545/0x810 [ 35.692030][ C3] ? __pfx_addrconf_rs_timer+0x10/0x10 [ 35.692162][ C3] ? __pfx___run_timers+0x10/0x10 [ 35.692311][ C3] ? do_raw_spin_lock+0x131/0x270 [ 35.692444][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 35.692605][ C3] ? lock_acquire+0x32/0xc0 [ 35.692746][ C3] ? run_timer_softirq+0xe0/0x1b0 [ 35.692896][ C3] run_timer_softirq+0xe8/0x1b0 [ 35.693029][ C3] __do_softirq+0x1f8/0x5df [ 35.693184][ C3] irq_exit_rcu+0x97/0xc0 [ 35.693285][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 35.693415][ C3] [ 35.693507][ C3] [ 35.693574][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 35.693745][ C3] RIP: 0010:default_idle+0xf/0x20 [ 35.693889][ C3] 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 93 20 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 [ 35.694375][ C3] RSP: 0018:ffffc9000016fdf8 EFLAGS: 00000246 [ 35.694543][ C3] RAX: 00000000000818b1 RBX: 1ffff9200002dfc1 RCX: ffffffffa670f9e5 [ 35.694761][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa40aa4a4 [ 35.694972][ C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c3709c [ 35.695169][ C3] R10: ffff8880361b84e3 R11: ffff8880361ad9b0 R12: 0000000000000000 [ 35.695384][ C3] R13: ffff888001b88040 R14: dffffc0000000000 R15: 0000000000000000 [ 35.695601][ C3] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 35.695761][ C3] ? cpuidle_idle_call+0x1f4/0x280 [ 35.695909][ C3] default_idle_call+0x6d/0xb0 [ 35.696041][ C3] cpuidle_idle_call+0x1f4/0x280 [ 35.696191][ C3] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 35.696323][ C3] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 35.696481][ C3] do_idle+0xf9/0x160 [ 35.696582][ C3] cpu_startup_entry+0x54/0x60 [ 35.696715][ C3] start_secondary+0x21c/0x2b0 [ 35.696847][ C3] ? __pfx_start_secondary+0x10/0x10 [ 35.696980][ C3] common_startup_64+0x12c/0x138 [ 35.697118][ C3] [ 48.662540][ T375] br1: port 1(veth1) entered disabled state [ 48.761572][ T376] veth1: left allmulticast mode [ 48.761744][ T376] veth1: left promiscuous mode [ 48.762865][ T376] br1: port 1(veth1) entered disabled state