[ 24.318131][ T235] ip (235) used greatest stack depth: 24088 bytes left [ 30.854350][ T313] gre: GRE over IPv4 demultiplexor driver [ 30.875190][ T313] ip_gre: GRE over IPv4 tunneling driver [ 30.937959][ T312] ip (312) used greatest stack depth: 23792 bytes left [ 33.149179][ T336] 8021q: 802.1Q VLAN Support v1.8 [ 37.195866][ T374] GACT probability NOT on [ 41.164712][ T411] [ 41.164823][ T411] ===================================================== [ 41.165001][ T411] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 41.165211][ T411] 6.9.0-rc1-virtme #1 Not tainted [ 41.165350][ T411] ----------------------------------------------------- [ 41.165534][ T411] sysctl/411 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 41.165740][ T411] ffff888007e08968 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 41.165998][ T411] [ 41.165998][ T411] and this task is already holding: [ 41.166200][ T411] ffff8880051ea580 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 41.166459][ T411] which would create a new lock dependency: [ 41.166636][ T411] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 41.166839][ T411] [ 41.166839][ T411] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 41.167070][ T411] (&ndev->lock){++--}-{2:2} [ 41.167074][ T411] [ 41.167074][ T411] ... which became SOFTIRQ-irq-safe at: [ 41.167409][ T411] __lock_acquire+0x797/0x1570 [ 41.167556][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.167693][ T411] _raw_write_lock+0x30/0x40 [ 41.167833][ T411] addrconf_rs_timer+0xa9/0x730 [ 41.167969][ T411] call_timer_fn+0x13b/0x230 [ 41.168106][ T411] __run_timers+0x545/0x810 [ 41.168243][ T411] run_timer_softirq+0xe8/0x1b0 [ 41.168377][ T411] __do_softirq+0x1f8/0x5df [ 41.168510][ T411] irq_exit_rcu+0x97/0xc0 [ 41.168645][ T411] sysvec_apic_timer_interrupt+0x75/0x80 [ 41.168783][ T411] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 41.168957][ T411] default_idle+0xf/0x20 [ 41.169059][ T411] default_idle_call+0x6d/0xb0 [ 41.169195][ T411] cpuidle_idle_call+0x1f4/0x280 [ 41.169331][ T411] do_idle+0xf9/0x160 [ 41.169432][ T411] cpu_startup_entry+0x54/0x60 [ 41.169568][ T411] rest_init+0x14f/0x260 [ 41.169668][ T411] start_kernel+0x318/0x3d0 [ 41.169804][ T411] x86_64_start_reservations+0x18/0x30 [ 41.169945][ T411] x86_64_start_kernel+0xba/0x110 [ 41.170080][ T411] common_startup_64+0x12c/0x138 [ 41.170217][ T411] [ 41.170217][ T411] to a SOFTIRQ-irq-unsafe lock: [ 41.170382][ T411] (&p->alloc_lock){+.+.}-{2:2} [ 41.170386][ T411] [ 41.170386][ T411] ... which became SOFTIRQ-irq-unsafe at: [ 41.170718][ T411] ... [ 41.170719][ T411] __lock_acquire+0x797/0x1570 [ 41.170922][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.171064][ T411] _raw_spin_lock+0x30/0x40 [ 41.171201][ T411] set_mems_allowed+0x1d/0x210 [ 41.171337][ T411] kernel_init_freeable+0x72/0x310 [ 41.171473][ T411] kernel_init+0x20/0x200 [ 41.171621][ T411] ret_from_fork+0x31/0x70 [ 41.171772][ T411] ret_from_fork_asm+0x1a/0x30 [ 41.171915][ T411] [ 41.171915][ T411] other info that might help us debug this: [ 41.171915][ T411] [ 41.172177][ T411] Possible interrupt unsafe locking scenario: [ 41.172177][ T411] [ 41.172382][ T411] CPU0 CPU1 [ 41.172515][ T411] ---- ---- [ 41.172648][ T411] lock(&p->alloc_lock); [ 41.172750][ T411] local_irq_disable(); [ 41.172916][ T411] lock(&ndev->lock); [ 41.173084][ T411] lock(&p->alloc_lock); [ 41.173255][ T411] [ 41.173366][ T411] lock(&ndev->lock); [ 41.173493][ T411] [ 41.173493][ T411] *** DEADLOCK *** [ 41.173493][ T411] [ 41.173693][ T411] 3 locks held by sysctl/411: [ 41.173829][ T411] #0: ffff8880061793f0 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0xf5/0x1e0 [ 41.174080][ T411] #1: ffffffff877969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_fixup_forwarding+0x20/0x460 [ 41.174360][ T411] #2: ffff8880051ea580 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 41.174606][ T411] [ 41.174606][ T411] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 41.174865][ T411] -> (&ndev->lock){++--}-{2:2} { [ 41.175011][ T411] HARDIRQ-ON-W at: [ 41.175116][ T411] __lock_acquire+0x797/0x1570 [ 41.175294][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.175469][ T411] _raw_write_lock_bh+0x38/0x50 [ 41.175642][ T411] addrconf_permanent_addr+0x6e/0x670 [ 41.175813][ T411] addrconf_notify+0x749/0xd60 [ 41.175981][ T411] notifier_call_chain+0xcd/0x150 [ 41.176152][ T411] __dev_notify_flags+0xe6/0x250 [ 41.176323][ T411] dev_change_flags+0xec/0x160 [ 41.176509][ T411] do_setlink+0x7d6/0x21e0 [ 41.176683][ T411] __rtnl_newlink+0xaa7/0xd80 [ 41.176858][ T411] rtnl_newlink+0x63/0xa0 [ 41.177113][ T411] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 41.177284][ T411] netlink_rcv_skb+0x130/0x360 [ 41.177471][ T411] netlink_unicast+0x449/0x710 [ 41.177812][ T411] netlink_sendmsg+0x723/0xbe0 [ 41.177989][ T411] ____sys_sendmsg+0x7b2/0xa10 [ 41.178163][ T411] ___sys_sendmsg+0xee/0x170 [ 41.178336][ T411] __sys_sendmsg+0xcd/0x170 [ 41.178597][ T411] do_syscall_64+0xc6/0x1e0 [ 41.178769][ T411] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 41.178977][ T411] HARDIRQ-ON-R at: [ 41.179167][ T411] __lock_acquire+0x797/0x1570 [ 41.179338][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.179509][ T411] _raw_read_lock_bh+0x44/0x80 [ 41.179696][ T411] inet6_fill_ifla6_attrs+0x516/0x740 [ 41.179949][ T411] inet6_fill_link_af+0x5e/0xe0 [ 41.180120][ T411] rtnl_fill_ifinfo+0x1612/0x29e0 [ 41.180294][ T411] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 41.180551][ T411] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 41.180756][ T411] rtmsg_ifinfo+0x5b/0xa0 [ 41.180926][ T411] register_netdevice+0x1177/0x1690 [ 41.181178][ T411] register_netdev+0x20/0x40 [ 41.181352][ T411] sit_init_net+0x250/0x4f0 [ 41.181529][ T411] ops_init+0x9b/0x560 [ 41.181673][ T411] register_pernet_operations+0x2db/0x710 [ 41.181958][ T411] register_pernet_device+0x2a/0x60 [ 41.182126][ T411] sit_init+0x23/0xe0 [ 41.182265][ T411] do_one_initcall+0x8d/0x1e0 [ 41.182522][ T411] do_initcalls+0x1b2/0x3e0 [ 41.182694][ T411] kernel_init_freeable+0x232/0x310 [ 41.182865][ T411] kernel_init+0x20/0x200 [ 41.183102][ T411] ret_from_fork+0x31/0x70 [ 41.183472][ T411] ret_from_fork_asm+0x1a/0x30 [ 41.183735][ T411] IN-SOFTIRQ-W at: [ 41.183895][ T411] __lock_acquire+0x797/0x1570 [ 41.184157][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.184571][ T411] _raw_write_lock+0x30/0x40 [ 41.184856][ T411] addrconf_rs_timer+0xa9/0x730 [ 41.185130][ T411] call_timer_fn+0x13b/0x230 [ 41.185557][ T411] __run_timers+0x545/0x810 [ 41.185826][ T411] run_timer_softirq+0xe8/0x1b0 [ 41.186097][ T411] __do_softirq+0x1f8/0x5df [ 41.186487][ T411] irq_exit_rcu+0x97/0xc0 [ 41.186671][ T411] sysvec_apic_timer_interrupt+0x75/0x80 [ 41.186878][ T411] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 41.187168][ T411] default_idle+0xf/0x20 [ 41.187340][ T411] default_idle_call+0x6d/0xb0 [ 41.187511][ T411] cpuidle_idle_call+0x1f4/0x280 [ 41.187681][ T411] do_idle+0xf9/0x160 [ 41.187899][ T411] cpu_startup_entry+0x54/0x60 [ 41.188076][ T411] rest_init+0x14f/0x260 [ 41.188248][ T411] start_kernel+0x318/0x3d0 [ 41.188506][ T411] x86_64_start_reservations+0x18/0x30 [ 41.188680][ T411] x86_64_start_kernel+0xba/0x110 [ 41.188852][ T411] common_startup_64+0x12c/0x138 [ 41.189030][ T411] IN-SOFTIRQ-R at: [ 41.189218][ T411] __lock_acquire+0x797/0x1570 [ 41.189391][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.189562][ T411] _raw_read_lock_bh+0x44/0x80 [ 41.189734][ T411] ipv6_get_lladdr+0xa9/0x3e0 [ 41.190071][ T411] addrconf_rs_timer+0x24a/0x730 [ 41.190242][ T411] call_timer_fn+0x13b/0x230 [ 41.190412][ T411] __run_timers+0x545/0x810 [ 41.190668][ T411] run_timer_softirq+0xe8/0x1b0 [ 41.190838][ T411] __do_softirq+0x1f8/0x5df [ 41.191006][ T411] irq_exit_rcu+0x97/0xc0 [ 41.191257][ T411] sysvec_apic_timer_interrupt+0x75/0x80 [ 41.191460][ T411] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 41.191664][ T411] default_idle+0xf/0x20 [ 41.191925][ T411] default_idle_call+0x6d/0xb0 [ 41.192097][ T411] cpuidle_idle_call+0x1f4/0x280 [ 41.192309][ T411] do_idle+0xf9/0x160 [ 41.192445][ T411] cpu_startup_entry+0x54/0x60 [ 41.192734][ T411] rest_init+0x14f/0x260 [ 41.192903][ T411] start_kernel+0x318/0x3d0 [ 41.193072][ T411] x86_64_start_reservations+0x18/0x30 [ 41.193327][ T411] x86_64_start_kernel+0xba/0x110 [ 41.193497][ T411] common_startup_64+0x12c/0x138 [ 41.193669][ T411] INITIAL USE at: [ 41.193772][ T411] __lock_acquire+0x797/0x1570 [ 41.194023][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.194192][ T411] _raw_write_lock_bh+0x38/0x50 [ 41.194365][ T411] addrconf_permanent_addr+0x6e/0x670 [ 41.194557][ T411] addrconf_notify+0x749/0xd60 [ 41.194812][ T411] notifier_call_chain+0xcd/0x150 [ 41.194984][ T411] __dev_notify_flags+0xe6/0x250 [ 41.195156][ T411] dev_change_flags+0xec/0x160 [ 41.195408][ T411] do_setlink+0x7d6/0x21e0 [ 41.195583][ T411] __rtnl_newlink+0xaa7/0xd80 [ 41.195754][ T411] rtnl_newlink+0x63/0xa0 [ 41.196005][ T411] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 41.196175][ T411] netlink_rcv_skb+0x130/0x360 [ 41.196347][ T411] netlink_unicast+0x449/0x710 [ 41.196525][ T411] netlink_sendmsg+0x723/0xbe0 [ 41.196780][ T411] ____sys_sendmsg+0x7b2/0xa10 [ 41.196955][ T411] ___sys_sendmsg+0xee/0x170 [ 41.197125][ T411] __sys_sendmsg+0xcd/0x170 [ 41.197376][ T411] do_syscall_64+0xc6/0x1e0 [ 41.197544][ T411] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 41.197745][ T411] INITIAL READ USE at: [ 41.197846][ T411] __lock_acquire+0x797/0x1570 [ 41.198098][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.198276][ T411] _raw_read_lock_bh+0x44/0x80 [ 41.198448][ T411] inet6_fill_ifla6_attrs+0x516/0x740 [ 41.198738][ T411] inet6_fill_link_af+0x5e/0xe0 [ 41.198908][ T411] rtnl_fill_ifinfo+0x1612/0x29e0 [ 41.199075][ T411] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 41.199365][ T411] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 41.199575][ T411] rtmsg_ifinfo+0x5b/0xa0 [ 41.199745][ T411] register_netdevice+0x1177/0x1690 [ 41.200030][ T411] register_netdev+0x20/0x40 [ 41.200198][ T411] sit_init_net+0x250/0x4f0 [ 41.200368][ T411] ops_init+0x9b/0x560 [ 41.200543][ T411] register_pernet_operations+0x2db/0x710 [ 41.200908][ T411] register_pernet_device+0x2a/0x60 [ 41.201109][ T411] sit_init+0x23/0xe0 [ 41.201283][ T411] do_one_initcall+0x8d/0x1e0 [ 41.201538][ T411] do_initcalls+0x1b2/0x3e0 [ 41.201708][ T411] kernel_init_freeable+0x232/0x310 [ 41.201919][ T411] kernel_init+0x20/0x200 [ 41.202172][ T411] ret_from_fork+0x31/0x70 [ 41.202345][ T411] ret_from_fork_asm+0x1a/0x30 [ 41.202515][ T411] } [ 41.202593][ T411] ... key at: [] __key.37+0x0/0x40 [ 41.202883][ T411] [ 41.202883][ T411] the dependencies between the lock to be acquired [ 41.202885][ T411] and SOFTIRQ-irq-unsafe lock: [ 41.203252][ T411] -> (&p->alloc_lock){+.+.}-{2:2} { [ 41.203477][ T411] HARDIRQ-ON-W at: [ 41.203590][ T411] __lock_acquire+0x797/0x1570 [ 41.203765][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.203936][ T411] _raw_spin_lock+0x30/0x40 [ 41.204191][ T411] set_mems_allowed+0x1d/0x210 [ 41.204361][ T411] kernel_init_freeable+0x72/0x310 [ 41.204536][ T411] kernel_init+0x20/0x200 [ 41.204784][ T411] ret_from_fork+0x31/0x70 [ 41.204957][ T411] ret_from_fork_asm+0x1a/0x30 [ 41.205130][ T411] SOFTIRQ-ON-W at: [ 41.205231][ T411] __lock_acquire+0x797/0x1570 [ 41.205483][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.205656][ T411] _raw_spin_lock+0x30/0x40 [ 41.205824][ T411] set_mems_allowed+0x1d/0x210 [ 41.206077][ T411] kernel_init_freeable+0x72/0x310 [ 41.206278][ T411] kernel_init+0x20/0x200 [ 41.206452][ T411] ret_from_fork+0x31/0x70 [ 41.206627][ T411] ret_from_fork_asm+0x1a/0x30 [ 41.206875][ T411] INITIAL USE at: [ 41.206987][ T411] __lock_acquire+0x797/0x1570 [ 41.207156][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.207329][ T411] _raw_spin_lock+0x30/0x40 [ 41.207592][ T411] set_mems_allowed+0x1d/0x210 [ 41.207770][ T411] kernel_init_freeable+0x72/0x310 [ 41.207946][ T411] kernel_init+0x20/0x200 [ 41.208201][ T411] ret_from_fork+0x31/0x70 [ 41.208478][ T411] ret_from_fork_asm+0x1a/0x30 [ 41.208647][ T411] } [ 41.208722][ T411] ... key at: [] __key.387+0x0/0x40 [ 41.209011][ T411] ... acquired at: [ 41.209116][ T411] check_prev_add+0x194/0xce0 [ 41.209253][ T411] validate_chain+0x71d/0x9b0 [ 41.209387][ T411] __lock_acquire+0xaf0/0x1570 [ 41.209608][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.209748][ T411] _raw_spin_lock+0x30/0x40 [ 41.209882][ T411] __get_task_comm+0x27/0x70 [ 41.210021][ T411] ref_tracker_alloc+0x2ee/0x490 [ 41.210237][ T411] netdev_get_by_index+0x5e/0x80 [ 41.210374][ T411] fib6_nh_init+0x3d8/0x15b0 [ 41.210509][ T411] ip6_route_info_create+0xf18/0x17d0 [ 41.210643][ T411] addrconf_f6i_alloc+0x265/0x560 [ 41.210778][ T411] __ipv6_dev_ac_inc+0x25f/0xb10 [ 41.210999][ T411] addrconf_join_anycast+0x1c0/0x220 [ 41.211136][ T411] dev_forward_change+0x2a6/0x7b0 [ 41.211270][ T411] addrconf_fixup_forwarding+0x23f/0x460 [ 41.211437][ T411] addrconf_sysctl_forward+0x212/0x2b0 [ 41.211738][ T411] proc_sys_call_handler+0x403/0x5e0 [ 41.211873][ T411] vfs_write+0x9e5/0x10a0 [ 41.212008][ T411] ksys_write+0xf5/0x1e0 [ 41.212148][ T411] do_syscall_64+0xc6/0x1e0 [ 41.212362][ T411] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 41.212527][ T411] [ 41.212601][ T411] [ 41.212601][ T411] stack backtrace: [ 41.212764][ T411] CPU: 2 PID: 411 Comm: sysctl Not tainted 6.9.0-rc1-virtme #1 [ 41.213053][ T411] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 41.213346][ T411] Call Trace: [ 41.213458][ T411] [ 41.213609][ T411] dump_stack_lvl+0x82/0xd0 [ 41.213749][ T411] print_bad_irq_dependency+0x957/0xd40 [ 41.213883][ T411] ? hlock_class+0x4e/0x130 [ 41.214025][ T411] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 41.214272][ T411] ? __pfx_usage_skip+0x10/0x10 [ 41.214405][ T411] ? __bfs+0x246/0x650 [ 41.214506][ T411] ? __pfx_usage_match+0x10/0x10 [ 41.214639][ T411] check_irq_usage+0x596/0x850 [ 41.214779][ T411] ? __pfx_check_irq_usage+0x10/0x10 [ 41.214997][ T411] ? __bfs+0x246/0x650 [ 41.215097][ T411] ? __pfx_hlock_conflict+0x10/0x10 [ 41.215230][ T411] ? check_path.constprop.0+0x24/0x50 [ 41.215362][ T411] ? check_noncircular+0x14c/0x3e0 [ 41.215575][ T411] ? __pfx_check_noncircular+0x10/0x10 [ 41.215714][ T411] ? check_prev_add+0x194/0xce0 [ 41.215847][ T411] check_prev_add+0x194/0xce0 [ 41.215991][ T411] ? validate_chain+0x130/0x9b0 [ 41.216125][ T411] validate_chain+0x71d/0x9b0 [ 41.216343][ T411] ? mark_lock+0x38/0x3e0 [ 41.216456][ T411] ? __pfx_validate_chain+0x10/0x10 [ 41.216590][ T411] ? hlock_class+0x4e/0x130 [ 41.216721][ T411] ? mark_lock+0x38/0x3e0 [ 41.216905][ T411] __lock_acquire+0xaf0/0x1570 [ 41.217045][ T411] lock_acquire.part.0+0xeb/0x330 [ 41.217178][ T411] ? __get_task_comm+0x27/0x70 [ 41.217315][ T411] ? mark_lock+0x38/0x3e0 [ 41.217417][ T411] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 41.217634][ T411] ? trace_lock_acquire+0x135/0x1c0 [ 41.217767][ T411] ? __get_task_comm+0x27/0x70 [ 41.217904][ T411] ? lock_acquire+0x32/0xc0 [ 41.218036][ T411] ? __get_task_comm+0x27/0x70 [ 41.218254][ T411] _raw_spin_lock+0x30/0x40 [ 41.218388][ T411] ? __get_task_comm+0x27/0x70 [ 41.218524][ T411] __get_task_comm+0x27/0x70 [ 41.218657][ T411] ref_tracker_alloc+0x2ee/0x490 [ 41.218874][ T411] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 41.219007][ T411] ? dev_get_by_index+0x177/0x270 [ 41.219139][ T411] ? netdev_get_by_index+0x5e/0x80 [ 41.219272][ T411] ? fib6_nh_init+0x3d8/0x15b0 [ 41.219405][ T411] ? ip6_route_info_create+0xf18/0x17d0 [ 41.219618][ T411] ? addrconf_f6i_alloc+0x265/0x560 [ 41.219755][ T411] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 41.219894][ T411] ? addrconf_join_anycast+0x1c0/0x220 [ 41.220026][ T411] ? dev_forward_change+0x2a6/0x7b0 [ 41.220238][ T411] ? addrconf_fixup_forwarding+0x23f/0x460 [ 41.220403][ T411] ? addrconf_sysctl_forward+0x212/0x2b0 [ 41.220540][ T411] ? proc_sys_call_handler+0x403/0x5e0 [ 41.220672][ T411] ? vfs_write+0x9e5/0x10a0 [ 41.220888][ T411] ? ksys_write+0xf5/0x1e0 [ 41.221025][ T411] ? do_syscall_64+0xc6/0x1e0 [ 41.221159][ T411] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 41.221324][ T411] ? dev_get_by_index+0x177/0x270 [ 41.221539][ T411] netdev_get_by_index+0x5e/0x80 [ 41.221671][ T411] fib6_nh_init+0x3d8/0x15b0 [ 41.221807][ T411] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 41.221976][ T411] ? __pfx_fib6_nh_init+0x10/0x10 [ 41.222271][ T411] ? kasan_save_track+0x14/0x30 [ 41.222409][ T411] ? __kasan_kmalloc+0x7f/0x90 [ 41.222542][ T411] ? __kmalloc+0x1d7/0x3c0 [ 41.222676][ T411] ? fib6_get_table+0x116/0x290 [ 41.222895][ T411] ip6_route_info_create+0xf18/0x17d0 [ 41.223028][ T411] ? __lock_release+0x103/0x460 [ 41.223163][ T411] ? __pfx_ip6_route_info_create+0x10/0x10 [ 41.223329][ T411] ? addrconf_f6i_alloc+0x12d/0x560 [ 41.223544][ T411] addrconf_f6i_alloc+0x265/0x560 [ 41.223683][ T411] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 41.223822][ T411] ? do_raw_write_lock+0x122/0x3b0 [ 41.223956][ T411] ? __pfx_do_raw_write_lock+0x10/0x10 [ 41.224170][ T411] ? lock_acquire+0x32/0xc0 [ 41.224305][ T411] __ipv6_dev_ac_inc+0x25f/0xb10 [ 41.224441][ T411] addrconf_join_anycast+0x1c0/0x220 [ 41.224573][ T411] ? mark_lock+0x38/0x3e0 [ 41.224677][ T411] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 41.224933][ T411] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 41.225099][ T411] dev_forward_change+0x2a6/0x7b0 [ 41.225234][ T411] ? __pfx_dev_forward_change+0x10/0x10 [ 41.225369][ T411] addrconf_fixup_forwarding+0x23f/0x460 [ 41.225589][ T411] addrconf_sysctl_forward+0x212/0x2b0 [ 41.225725][ T411] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 41.225890][ T411] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 41.226143][ T411] ? trace_kmalloc+0x2a/0xe0 [ 41.226277][ T411] ? __kmalloc_node+0x220/0x400 [ 41.226414][ T411] ? proc_sys_call_handler+0x30b/0x5e0 [ 41.226551][ T411] proc_sys_call_handler+0x403/0x5e0 [ 41.226688][ T411] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 41.226934][ T411] ? __lock_acquire+0xaf0/0x1570 [ 41.227071][ T411] vfs_write+0x9e5/0x10a0 [ 41.227173][ T411] ? do_user_addr_fault+0x449/0xbe0 [ 41.227311][ T411] ? __pfx_vfs_write+0x10/0x10 [ 41.227526][ T411] ? find_held_lock+0x2c/0x110 [ 41.227664][ T411] ? __pfx___lock_release+0x10/0x10 [ 41.227797][ T411] ? __fget_light+0x53/0x1e0 [ 41.227933][ T411] ksys_write+0xf5/0x1e0 [ 41.228114][ T411] ? __pfx_ksys_write+0x10/0x10 [ 41.228247][ T411] ? do_user_addr_fault+0x4bd/0xbe0 [ 41.228379][ T411] do_syscall_64+0xc6/0x1e0 [ 41.228515][ T411] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 41.228766][ T411] RIP: 0033:0x7f837e012957 [ 41.228915][ T411] 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 [ 41.229475][ T411] RSP: 002b:00007ffdc9ab1cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 41.229681][ T411] RAX: ffffffffffffffda RBX: 000055b8987b2360 RCX: 00007f837e012957 [ 41.229884][ T411] RDX: 0000000000000002 RSI: 000055b8987b23a0 RDI: 0000000000000005 [ 41.230168][ T411] RBP: 000055b8987b44d0 R08: 0000000000000003 R09: 0000000000000077 [ 41.230367][ T411] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 [ 41.230575][ T411] R13: 0000000000000002 R14: 0000000000000002 R15: 00007f837e0c99c0 [ 41.230866][ T411] WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr