[ 30.218358][ T290] [ 30.218528][ T290] ===================================================== [ 30.218698][ T290] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 30.218905][ T290] 6.9.0-rc1-virtme #1 Not tainted [ 30.219043][ T290] ----------------------------------------------------- [ 30.219215][ T290] sysctl/290 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 30.219419][ T290] ffff8880085c2c28 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 30.219673][ T290] [ 30.219673][ T290] and this task is already holding: [ 30.219878][ T290] ffff888008658d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 30.220128][ T290] which would create a new lock dependency: [ 30.220294][ T290] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 30.220502][ T290] [ 30.220502][ T290] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 30.220731][ T290] (&ndev->lock){++--}-{2:2} [ 30.220735][ T290] [ 30.220735][ T290] ... which became SOFTIRQ-irq-safe at: [ 30.221063][ T290] __lock_acquire+0x797/0x1570 [ 30.221206][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.221344][ T290] _raw_write_lock+0x30/0x40 [ 30.221485][ T290] addrconf_rs_timer+0xa9/0x730 [ 30.221631][ T290] call_timer_fn+0x13b/0x230 [ 30.221769][ T290] __run_timers+0x545/0x810 [ 30.221906][ T290] run_timer_softirq+0xe8/0x1b0 [ 30.222040][ T290] __do_softirq+0x1f8/0x5df [ 30.222175][ T290] irq_exit_rcu+0x97/0xc0 [ 30.222312][ T290] sysvec_apic_timer_interrupt+0x75/0x80 [ 30.222453][ T290] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 30.222623][ T290] default_idle+0xf/0x20 [ 30.222724][ T290] default_idle_call+0x6d/0xb0 [ 30.222859][ T290] cpuidle_idle_call+0x1f4/0x280 [ 30.222998][ T290] do_idle+0xf9/0x160 [ 30.223102][ T290] cpu_startup_entry+0x54/0x60 [ 30.223236][ T290] start_secondary+0x21c/0x2b0 [ 30.223375][ T290] common_startup_64+0x12c/0x138 [ 30.223516][ T290] [ 30.223516][ T290] to a SOFTIRQ-irq-unsafe lock: [ 30.223682][ T290] (&p->alloc_lock){+.+.}-{2:2} [ 30.223686][ T290] [ 30.223686][ T290] ... which became SOFTIRQ-irq-unsafe at: [ 30.224017][ T290] ... [ 30.224018][ T290] __lock_acquire+0x797/0x1570 [ 30.224224][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.224359][ T290] _raw_spin_lock+0x30/0x40 [ 30.224496][ T290] set_mems_allowed+0x1d/0x210 [ 30.224640][ T290] kernel_init_freeable+0x72/0x310 [ 30.224778][ T290] kernel_init+0x20/0x200 [ 30.224912][ T290] ret_from_fork+0x31/0x70 [ 30.225048][ T290] ret_from_fork_asm+0x1a/0x30 [ 30.225185][ T290] [ 30.225185][ T290] other info that might help us debug this: [ 30.225185][ T290] [ 30.225460][ T290] Possible interrupt unsafe locking scenario: [ 30.225460][ T290] [ 30.225660][ T290] CPU0 CPU1 [ 30.225800][ T290] ---- ---- [ 30.225934][ T290] lock(&p->alloc_lock); [ 30.226039][ T290] local_irq_disable(); [ 30.226207][ T290] lock(&ndev->lock); [ 30.226379][ T290] lock(&p->alloc_lock); [ 30.226552][ T290] [ 30.226655][ T290] lock(&ndev->lock); [ 30.226766][ T290] [ 30.226766][ T290] *** DEADLOCK *** [ 30.226766][ T290] [ 30.226967][ T290] 3 locks held by sysctl/290: [ 30.227104][ T290] #0: ffff8880062593f0 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0xf5/0x1e0 [ 30.227356][ T290] #1: ffffffff9e5b7208 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_fixup_forwarding+0x20/0x460 [ 30.227638][ T290] #2: ffff888008658d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 30.227881][ T290] [ 30.227881][ T290] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 30.228144][ T290] -> (&ndev->lock){++--}-{2:2} { [ 30.228287][ T290] HARDIRQ-ON-W at: [ 30.228395][ T290] __lock_acquire+0x797/0x1570 [ 30.228576][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.228749][ T290] _raw_write_lock_bh+0x38/0x50 [ 30.228927][ T290] addrconf_permanent_addr+0x6e/0x670 [ 30.229101][ T290] addrconf_notify+0x749/0xd60 [ 30.229273][ T290] notifier_call_chain+0xcd/0x150 [ 30.229447][ T290] __dev_notify_flags+0xe6/0x250 [ 30.229622][ T290] dev_change_flags+0xec/0x160 [ 30.229792][ T290] do_setlink+0x7d6/0x21e0 [ 30.229968][ T290] __rtnl_newlink+0xaa7/0xd80 [ 30.230139][ T290] rtnl_newlink+0x63/0xa0 [ 30.230309][ T290] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 30.230482][ T290] netlink_rcv_skb+0x130/0x360 [ 30.230655][ T290] netlink_unicast+0x449/0x710 [ 30.230825][ T290] netlink_sendmsg+0x723/0xbe0 [ 30.230997][ T290] ____sys_sendmsg+0x7b2/0xa10 [ 30.231176][ T290] ___sys_sendmsg+0xee/0x170 [ 30.231350][ T290] __sys_sendmsg+0xcd/0x170 [ 30.231522][ T290] do_syscall_64+0xc6/0x1e0 [ 30.231701][ T290] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 30.231905][ T290] HARDIRQ-ON-R at: [ 30.232008][ T290] __lock_acquire+0x797/0x1570 [ 30.232179][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.232355][ T290] _raw_read_lock_bh+0x44/0x80 [ 30.232527][ T290] inet6_fill_ifla6_attrs+0x516/0x740 [ 30.232697][ T290] inet6_fill_link_af+0x5e/0xe0 [ 30.232869][ T290] rtnl_fill_ifinfo+0x1615/0x2a90 [ 30.233040][ T290] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 30.233211][ T290] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 30.233420][ T290] rtmsg_ifinfo+0x5b/0xa0 [ 30.233589][ T290] register_netdevice+0x1177/0x1690 [ 30.233760][ T290] register_netdev+0x20/0x40 [ 30.233930][ T290] vti6_init_net+0x25d/0x380 [ 30.234104][ T290] ops_init+0x9b/0x560 [ 30.234241][ T290] register_pernet_operations+0x2db/0x710 [ 30.234449][ T290] register_pernet_device+0x2a/0x60 [ 30.234621][ T290] vti6_tunnel_init+0x18/0x110 [ 30.234794][ T290] do_one_initcall+0x8d/0x1e0 [ 30.234967][ T290] do_initcalls+0x1b2/0x3e0 [ 30.235139][ T290] kernel_init_freeable+0x232/0x310 [ 30.235309][ T290] kernel_init+0x20/0x200 [ 30.235481][ T290] ret_from_fork+0x31/0x70 [ 30.235653][ T290] ret_from_fork_asm+0x1a/0x30 [ 30.235824][ T290] IN-SOFTIRQ-W at: [ 30.235926][ T290] __lock_acquire+0x797/0x1570 [ 30.236097][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.236269][ T290] _raw_write_lock+0x30/0x40 [ 30.236444][ T290] addrconf_rs_timer+0xa9/0x730 [ 30.236619][ T290] call_timer_fn+0x13b/0x230 [ 30.236790][ T290] __run_timers+0x545/0x810 [ 30.236965][ T290] run_timer_softirq+0xe8/0x1b0 [ 30.237135][ T290] __do_softirq+0x1f8/0x5df [ 30.237307][ T290] irq_exit_rcu+0x97/0xc0 [ 30.237481][ T290] sysvec_apic_timer_interrupt+0x75/0x80 [ 30.237686][ T290] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 30.237893][ T290] default_idle+0xf/0x20 [ 30.238067][ T290] default_idle_call+0x6d/0xb0 [ 30.238238][ T290] cpuidle_idle_call+0x1f4/0x280 [ 30.238410][ T290] do_idle+0xf9/0x160 [ 30.238549][ T290] cpu_startup_entry+0x54/0x60 [ 30.238721][ T290] start_secondary+0x21c/0x2b0 [ 30.238897][ T290] common_startup_64+0x12c/0x138 [ 30.239068][ T290] IN-SOFTIRQ-R at: [ 30.239171][ T290] __lock_acquire+0x797/0x1570 [ 30.239344][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.239515][ T290] _raw_read_lock_bh+0x44/0x80 [ 30.239686][ T290] ipv6_get_lladdr+0xa9/0x3e0 [ 30.239857][ T290] addrconf_rs_timer+0x24a/0x730 [ 30.240029][ T290] call_timer_fn+0x13b/0x230 [ 30.240200][ T290] __run_timers+0x545/0x810 [ 30.240370][ T290] run_timer_softirq+0xe8/0x1b0 [ 30.240643][ T290] __do_softirq+0x1f8/0x5df [ 30.240814][ T290] irq_exit_rcu+0x97/0xc0 [ 30.240984][ T290] sysvec_apic_timer_interrupt+0x75/0x80 [ 30.241192][ T290] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 30.241395][ T290] default_idle+0xf/0x20 [ 30.241567][ T290] default_idle_call+0x6d/0xb0 [ 30.241745][ T290] cpuidle_idle_call+0x1f4/0x280 [ 30.241915][ T290] do_idle+0xf9/0x160 [ 30.242052][ T290] cpu_startup_entry+0x54/0x60 [ 30.242227][ T290] start_secondary+0x21c/0x2b0 [ 30.242485][ T290] common_startup_64+0x12c/0x138 [ 30.242655][ T290] INITIAL USE at: [ 30.242758][ T290] __lock_acquire+0x797/0x1570 [ 30.242928][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.243179][ T290] _raw_write_lock_bh+0x38/0x50 [ 30.243348][ T290] addrconf_permanent_addr+0x6e/0x670 [ 30.243521][ T290] addrconf_notify+0x749/0xd60 [ 30.243772][ T290] notifier_call_chain+0xcd/0x150 [ 30.243944][ T290] __dev_notify_flags+0xe6/0x250 [ 30.244115][ T290] dev_change_flags+0xec/0x160 [ 30.244367][ T290] do_setlink+0x7d6/0x21e0 [ 30.244542][ T290] __rtnl_newlink+0xaa7/0xd80 [ 30.244712][ T290] rtnl_newlink+0x63/0xa0 [ 30.244886][ T290] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 30.245139][ T290] netlink_rcv_skb+0x130/0x360 [ 30.245311][ T290] netlink_unicast+0x449/0x710 [ 30.245481][ T290] netlink_sendmsg+0x723/0xbe0 [ 30.245732][ T290] ____sys_sendmsg+0x7b2/0xa10 [ 30.245905][ T290] ___sys_sendmsg+0xee/0x170 [ 30.246080][ T290] __sys_sendmsg+0xcd/0x170 [ 30.246251][ T290] do_syscall_64+0xc6/0x1e0 [ 30.246504][ T290] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 30.246709][ T290] INITIAL READ USE at: [ 30.246811][ T290] __lock_acquire+0x797/0x1570 [ 30.247061][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.247233][ T290] _raw_read_lock_bh+0x44/0x80 [ 30.247406][ T290] inet6_fill_ifla6_attrs+0x516/0x740 [ 30.247772][ T290] inet6_fill_link_af+0x5e/0xe0 [ 30.247943][ T290] rtnl_fill_ifinfo+0x1615/0x2a90 [ 30.248112][ T290] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 30.248314][ T290] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 30.248606][ T290] rtmsg_ifinfo+0x5b/0xa0 [ 30.248777][ T290] register_netdevice+0x1177/0x1690 [ 30.248982][ T290] register_netdev+0x20/0x40 [ 30.249153][ T290] vti6_init_net+0x25d/0x380 [ 30.249324][ T290] ops_init+0x9b/0x560 [ 30.249495][ T290] register_pernet_operations+0x2db/0x710 [ 30.249703][ T290] register_pernet_device+0x2a/0x60 [ 30.249905][ T290] vti6_tunnel_init+0x18/0x110 [ 30.250077][ T290] do_one_initcall+0x8d/0x1e0 [ 30.250332][ T290] do_initcalls+0x1b2/0x3e0 [ 30.250502][ T290] kernel_init_freeable+0x232/0x310 [ 30.250705][ T290] kernel_init+0x20/0x200 [ 30.250961][ T290] ret_from_fork+0x31/0x70 [ 30.251133][ T290] ret_from_fork_asm+0x1a/0x30 [ 30.251304][ T290] } [ 30.251374][ T290] ... key at: [] __key.37+0x0/0x40 [ 30.251674][ T290] [ 30.251674][ T290] the dependencies between the lock to be acquired [ 30.251676][ T290] and SOFTIRQ-irq-unsafe lock: [ 30.252038][ T290] -> (&p->alloc_lock){+.+.}-{2:2} { [ 30.252183][ T290] HARDIRQ-ON-W at: [ 30.252288][ T290] __lock_acquire+0x797/0x1570 [ 30.252464][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.252636][ T290] _raw_spin_lock+0x30/0x40 [ 30.252889][ T290] set_mems_allowed+0x1d/0x210 [ 30.253061][ T290] kernel_init_freeable+0x72/0x310 [ 30.253233][ T290] kernel_init+0x20/0x200 [ 30.253412][ T290] ret_from_fork+0x31/0x70 [ 30.253680][ T290] ret_from_fork_asm+0x1a/0x30 [ 30.253851][ T290] SOFTIRQ-ON-W at: [ 30.253954][ T290] __lock_acquire+0x797/0x1570 [ 30.254127][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.254299][ T290] _raw_spin_lock+0x30/0x40 [ 30.254471][ T290] set_mems_allowed+0x1d/0x210 [ 30.254645][ T290] kernel_init_freeable+0x72/0x310 [ 30.254817][ T290] kernel_init+0x20/0x200 [ 30.254989][ T290] ret_from_fork+0x31/0x70 [ 30.255162][ T290] ret_from_fork_asm+0x1a/0x30 [ 30.255428][ T290] INITIAL USE at: [ 30.255536][ T290] __lock_acquire+0x797/0x1570 [ 30.255708][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.255882][ T290] _raw_spin_lock+0x30/0x40 [ 30.256135][ T290] set_mems_allowed+0x1d/0x210 [ 30.256306][ T290] kernel_init_freeable+0x72/0x310 [ 30.256477][ T290] kernel_init+0x20/0x200 [ 30.256729][ T290] ret_from_fork+0x31/0x70 [ 30.256903][ T290] ret_from_fork_asm+0x1a/0x30 [ 30.257077][ T290] } [ 30.257149][ T290] ... key at: [] __key.388+0x0/0x40 [ 30.257435][ T290] ... acquired at: [ 30.257537][ T290] check_prev_add+0x194/0xce0 [ 30.257677][ T290] validate_chain+0x71d/0x9b0 [ 30.257814][ T290] __lock_acquire+0xaf0/0x1570 [ 30.257952][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.258251][ T290] _raw_spin_lock+0x30/0x40 [ 30.258388][ T290] __get_task_comm+0x27/0x70 [ 30.258530][ T290] ref_tracker_alloc+0x2ee/0x490 [ 30.258669][ T290] netdev_get_by_index+0x5e/0x80 [ 30.258887][ T290] fib6_nh_init+0x3d8/0x1580 [ 30.259028][ T290] ip6_route_info_create+0xf18/0x17d0 [ 30.259166][ T290] addrconf_f6i_alloc+0x265/0x560 [ 30.259304][ T290] __ipv6_dev_ac_inc+0x25f/0xb10 [ 30.259551][ T290] addrconf_join_anycast+0x1c0/0x220 [ 30.259691][ T290] dev_forward_change+0x2a6/0x7b0 [ 30.259830][ T290] addrconf_fixup_forwarding+0x23f/0x460 [ 30.260001][ T290] addrconf_sysctl_forward+0x212/0x2b0 [ 30.260140][ T290] proc_sys_call_handler+0x403/0x5e0 [ 30.260281][ T290] vfs_write+0x9e5/0x10a0 [ 30.260419][ T290] ksys_write+0xf5/0x1e0 [ 30.260558][ T290] do_syscall_64+0xc6/0x1e0 [ 30.260696][ T290] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 30.260869][ T290] [ 30.260939][ T290] [ 30.260939][ T290] stack backtrace: [ 30.261108][ T290] CPU: 3 PID: 290 Comm: sysctl Not tainted 6.9.0-rc1-virtme #1 [ 30.261396][ T290] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 30.261700][ T290] Call Trace: [ 30.261807][ T290] [ 30.261878][ T290] dump_stack_lvl+0x82/0xd0 [ 30.262102][ T290] print_bad_irq_dependency+0x957/0xd40 [ 30.262239][ T290] ? hlock_class+0x4e/0x130 [ 30.262380][ T290] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 30.262548][ T290] ? __pfx_usage_skip+0x10/0x10 [ 30.262762][ T290] ? __bfs+0x246/0x650 [ 30.262865][ T290] ? __pfx_usage_match+0x10/0x10 [ 30.262999][ T290] check_irq_usage+0x596/0x850 [ 30.263136][ T290] ? __pfx_check_irq_usage+0x10/0x10 [ 30.263355][ T290] ? __bfs+0x246/0x650 [ 30.263458][ T290] ? __pfx_hlock_conflict+0x10/0x10 [ 30.263594][ T290] ? check_path.constprop.0+0x24/0x50 [ 30.263728][ T290] ? check_noncircular+0x14c/0x3e0 [ 30.263863][ T290] ? __pfx_check_noncircular+0x10/0x10 [ 30.264081][ T290] ? check_prev_add+0x194/0xce0 [ 30.264215][ T290] check_prev_add+0x194/0xce0 [ 30.264353][ T290] ? validate_chain+0x130/0x9b0 [ 30.264491][ T290] validate_chain+0x71d/0x9b0 [ 30.264706][ T290] ? mark_lock+0x38/0x3e0 [ 30.264809][ T290] ? __pfx_validate_chain+0x10/0x10 [ 30.264945][ T290] ? hlock_class+0x4e/0x130 [ 30.265079][ T290] ? mark_lock+0x38/0x3e0 [ 30.265183][ T290] __lock_acquire+0xaf0/0x1570 [ 30.265402][ T290] lock_acquire.part.0+0xeb/0x330 [ 30.265539][ T290] ? __get_task_comm+0x27/0x70 [ 30.265674][ T290] ? mark_lock+0x38/0x3e0 [ 30.265779][ T290] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 30.265992][ T290] ? trace_lock_acquire+0x135/0x1c0 [ 30.266128][ T290] ? __get_task_comm+0x27/0x70 [ 30.266265][ T290] ? lock_acquire+0x32/0xc0 [ 30.266400][ T290] ? __get_task_comm+0x27/0x70 [ 30.266536][ T290] _raw_spin_lock+0x30/0x40 [ 30.266751][ T290] ? __get_task_comm+0x27/0x70 [ 30.266886][ T290] __get_task_comm+0x27/0x70 [ 30.267021][ T290] ref_tracker_alloc+0x2ee/0x490 [ 30.267160][ T290] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 30.267373][ T290] ? dev_get_by_index+0x177/0x270 [ 30.267507][ T290] ? netdev_get_by_index+0x5e/0x80 [ 30.267641][ T290] ? fib6_nh_init+0x3d8/0x1580 [ 30.267775][ T290] ? ip6_route_info_create+0xf18/0x17d0 [ 30.267988][ T290] ? addrconf_f6i_alloc+0x265/0x560 [ 30.268123][ T290] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 30.268261][ T290] ? addrconf_join_anycast+0x1c0/0x220 [ 30.268399][ T290] ? dev_forward_change+0x2a6/0x7b0 [ 30.268692][ T290] ? addrconf_fixup_forwarding+0x23f/0x460 [ 30.268860][ T290] ? addrconf_sysctl_forward+0x212/0x2b0 [ 30.268995][ T290] ? proc_sys_call_handler+0x403/0x5e0 [ 30.269129][ T290] ? vfs_write+0x9e5/0x10a0 [ 30.269345][ T290] ? ksys_write+0xf5/0x1e0 [ 30.269481][ T290] ? do_syscall_64+0xc6/0x1e0 [ 30.269622][ T290] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 30.269791][ T290] ? dev_get_by_index+0x177/0x270 [ 30.270004][ T290] netdev_get_by_index+0x5e/0x80 [ 30.270139][ T290] fib6_nh_init+0x3d8/0x1580 [ 30.270276][ T290] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 30.270444][ T290] ? __pfx_fib6_nh_init+0x10/0x10 [ 30.270657][ T290] ? kasan_save_track+0x14/0x30 [ 30.270794][ T290] ? __kasan_kmalloc+0x7f/0x90 [ 30.270929][ T290] ? __kmalloc+0x1d7/0x3c0 [ 30.271068][ T290] ? fib6_get_table+0x116/0x290 [ 30.271207][ T290] ip6_route_info_create+0xf18/0x17d0 [ 30.271420][ T290] ? __lock_release+0x103/0x460 [ 30.271561][ T290] ? __pfx_ip6_route_info_create+0x10/0x10 [ 30.271743][ T290] ? addrconf_f6i_alloc+0x12d/0x560 [ 30.271879][ T290] addrconf_f6i_alloc+0x265/0x560 [ 30.272092][ T290] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 30.272232][ T290] ? do_raw_write_lock+0x122/0x3b0 [ 30.272372][ T290] ? __pfx_do_raw_write_lock+0x10/0x10 [ 30.272507][ T290] ? lock_acquire+0x32/0xc0 [ 30.272722][ T290] __ipv6_dev_ac_inc+0x25f/0xb10 [ 30.272860][ T290] addrconf_join_anycast+0x1c0/0x220 [ 30.272995][ T290] ? mark_lock+0x38/0x3e0 [ 30.273100][ T290] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 30.273347][ T290] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 30.273518][ T290] dev_forward_change+0x2a6/0x7b0 [ 30.273655][ T290] ? __pfx_dev_forward_change+0x10/0x10 [ 30.273791][ T290] addrconf_fixup_forwarding+0x23f/0x460 [ 30.274008][ T290] addrconf_sysctl_forward+0x212/0x2b0 [ 30.274146][ T290] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 30.274315][ T290] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 30.274483][ T290] ? trace_kmalloc+0x2a/0xe0 [ 30.274697][ T290] ? __kmalloc_node+0x220/0x400 [ 30.274837][ T290] ? proc_sys_call_handler+0x30b/0x5e0 [ 30.274972][ T290] proc_sys_call_handler+0x403/0x5e0 [ 30.275110][ T290] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 30.275355][ T290] ? __lock_acquire+0xaf0/0x1570 [ 30.275494][ T290] vfs_write+0x9e5/0x10a0 [ 30.275596][ T290] ? do_user_addr_fault+0x449/0xbe0 [ 30.275733][ T290] ? __pfx_vfs_write+0x10/0x10 [ 30.275949][ T290] ? find_held_lock+0x2c/0x110 [ 30.276091][ T290] ? __pfx___lock_release+0x10/0x10 [ 30.276227][ T290] ? __fget_light+0x53/0x1e0 [ 30.276366][ T290] ksys_write+0xf5/0x1e0 [ 30.276470][ T290] ? __pfx_ksys_write+0x10/0x10 [ 30.276686][ T290] ? do_user_addr_fault+0x4bd/0xbe0 [ 30.276822][ T290] do_syscall_64+0xc6/0x1e0 [ 30.276960][ T290] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 30.277132][ T290] RIP: 0033:0x7fb358b43957 [ 30.277359][ T290] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 [ 30.277835][ T290] RSP: 002b:00007fff2fa26518 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 30.278126][ T290] RAX: ffffffffffffffda RBX: 000055cdaadb6360 RCX: 00007fb358b43957 [ 30.278328][ T290] RDX: 0000000000000002 RSI: 000055cdaadb63a0 RDI: 0000000000000005 [ 30.278616][ T290] RBP: 000055cdaadb84d0 R08: 0000000000000003 R09: 0000000000000077 [ 30.278817][ T290] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 [ 30.279021][ T290] R13: 0000000000000002 R14: 0000000000000002 R15: 00007fb358bfa9c0 [ 30.279385][ T290] [ 32.540149][ T312] Mirror/redirect action on