[ 30.519212][ T313] gre: GRE over IPv4 demultiplexor driver [ 30.579390][ T313] ip6_gre: GRE over IPv6 tunneling driver [ 30.848138][ T318] ip (318) used greatest stack depth: 23104 bytes left [ 32.745342][ T335] 8021q: 802.1Q VLAN Support v1.8 [ 36.881116][ T373] GACT probability NOT on [ 40.840445][ T410] [ 40.840554][ T410] ===================================================== [ 40.840734][ T410] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 40.840955][ T410] 6.9.0-rc1-virtme #1 Not tainted [ 40.841095][ T410] ----------------------------------------------------- [ 40.841265][ T410] sysctl/410 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 40.841476][ T410] ffff888005758968 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 40.841723][ T410] [ 40.841723][ T410] and this task is already holding: [ 40.841932][ T410] ffff888002848d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 40.842179][ T410] which would create a new lock dependency: [ 40.842352][ T410] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 40.842569][ T410] [ 40.842569][ T410] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 40.842800][ T410] (&ndev->lock){++--}-{2:2} [ 40.842804][ T410] [ 40.842804][ T410] ... which became SOFTIRQ-irq-safe at: [ 40.843138][ T410] __lock_acquire+0x797/0x1570 [ 40.843281][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.843416][ T410] _raw_write_lock+0x30/0x40 [ 40.843552][ T410] addrconf_rs_timer+0xa9/0x730 [ 40.843693][ T410] call_timer_fn+0x13b/0x230 [ 40.843837][ T410] __run_timers+0x545/0x810 [ 40.843973][ T410] run_timer_softirq+0xe8/0x1b0 [ 40.844108][ T410] __do_softirq+0x1f8/0x5df [ 40.844251][ T410] irq_exit_rcu+0x97/0xc0 [ 40.844389][ T410] sysvec_apic_timer_interrupt+0x75/0x80 [ 40.844526][ T410] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 40.844696][ T410] default_idle+0xf/0x20 [ 40.844800][ T410] default_idle_call+0x6d/0xb0 [ 40.844953][ T410] cpuidle_idle_call+0x1f4/0x280 [ 40.845093][ T410] do_idle+0xf9/0x160 [ 40.845195][ T410] cpu_startup_entry+0x54/0x60 [ 40.845330][ T410] rest_init+0x14f/0x260 [ 40.845433][ T410] start_kernel+0x318/0x3d0 [ 40.845573][ T410] x86_64_start_reservations+0x18/0x30 [ 40.845709][ T410] x86_64_start_kernel+0xba/0x110 [ 40.845846][ T410] common_startup_64+0x12c/0x138 [ 40.845988][ T410] [ 40.845988][ T410] to a SOFTIRQ-irq-unsafe lock: [ 40.846158][ T410] (&p->alloc_lock){+.+.}-{2:2} [ 40.846162][ T410] [ 40.846162][ T410] ... which became SOFTIRQ-irq-unsafe at: [ 40.846490][ T410] ... [ 40.846492][ T410] __lock_acquire+0x797/0x1570 [ 40.846701][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.846842][ T410] _raw_spin_lock+0x30/0x40 [ 40.846980][ T410] set_mems_allowed+0x1d/0x210 [ 40.847123][ T410] kernel_init_freeable+0x72/0x310 [ 40.847260][ T410] kernel_init+0x20/0x200 [ 40.847400][ T410] ret_from_fork+0x31/0x70 [ 40.847546][ T410] ret_from_fork_asm+0x1a/0x30 [ 40.847680][ T410] [ 40.847680][ T410] other info that might help us debug this: [ 40.847680][ T410] [ 40.847947][ T410] Possible interrupt unsafe locking scenario: [ 40.847947][ T410] [ 40.848148][ T410] CPU0 CPU1 [ 40.848285][ T410] ---- ---- [ 40.848427][ T410] lock(&p->alloc_lock); [ 40.848533][ T410] local_irq_disable(); [ 40.848703][ T410] lock(&ndev->lock); [ 40.848881][ T410] lock(&p->alloc_lock); [ 40.849053][ T410] [ 40.849160][ T410] lock(&ndev->lock); [ 40.849268][ T410] [ 40.849268][ T410] *** DEADLOCK *** [ 40.849268][ T410] [ 40.849466][ T410] 3 locks held by sysctl/410: [ 40.849605][ T410] #0: ffff888005c893f0 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0xf5/0x1e0 [ 40.849858][ T410] #1: ffffffffa69969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_fixup_forwarding+0x20/0x460 [ 40.850138][ T410] #2: ffff888002848d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 40.850390][ T410] [ 40.850390][ T410] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 40.850655][ T410] -> (&ndev->lock){++--}-{2:2} { [ 40.850798][ T410] HARDIRQ-ON-W at: [ 40.850912][ T410] __lock_acquire+0x797/0x1570 [ 40.851091][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.851264][ T410] _raw_write_lock_bh+0x38/0x50 [ 40.851443][ T410] addrconf_permanent_addr+0x6e/0x670 [ 40.851617][ T410] addrconf_notify+0x749/0xd60 [ 40.851790][ T410] notifier_call_chain+0xcd/0x150 [ 40.851968][ T410] __dev_notify_flags+0xe6/0x250 [ 40.852144][ T410] dev_change_flags+0xec/0x160 [ 40.852319][ T410] do_setlink+0x7d6/0x21e0 [ 40.852497][ T410] __rtnl_newlink+0xaa7/0xd80 [ 40.852679][ T410] rtnl_newlink+0x63/0xa0 [ 40.852852][ T410] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 40.853024][ T410] netlink_rcv_skb+0x130/0x360 [ 40.853197][ T410] netlink_unicast+0x449/0x710 [ 40.853374][ T410] netlink_sendmsg+0x723/0xbe0 [ 40.853545][ T410] ____sys_sendmsg+0x7b2/0xa10 [ 40.853726][ T410] ___sys_sendmsg+0xee/0x170 [ 40.853905][ T410] __sys_sendmsg+0xcd/0x170 [ 40.854077][ T410] do_syscall_64+0xc6/0x1e0 [ 40.854262][ T410] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 40.854472][ T410] HARDIRQ-ON-R at: [ 40.854575][ T410] __lock_acquire+0x797/0x1570 [ 40.854749][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.854927][ T410] _raw_read_lock_bh+0x44/0x80 [ 40.855100][ T410] inet6_fill_ifla6_attrs+0x516/0x740 [ 40.855270][ T410] inet6_fill_link_af+0x5e/0xe0 [ 40.855447][ T410] rtnl_fill_ifinfo+0x1612/0x29e0 [ 40.855620][ T410] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 40.855793][ T410] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 40.856010][ T410] rtmsg_ifinfo+0x5b/0xa0 [ 40.856180][ T410] register_netdevice+0x1177/0x1690 [ 40.856358][ T410] register_netdev+0x20/0x40 [ 40.856528][ T410] sit_init_net+0x250/0x4f0 [ 40.856709][ T410] ops_init+0x9b/0x560 [ 40.856852][ T410] register_pernet_operations+0x2db/0x710 [ 40.857066][ T410] register_pernet_device+0x2a/0x60 [ 40.857239][ T410] sit_init+0x23/0xe0 [ 40.857379][ T410] do_one_initcall+0x8d/0x1e0 [ 40.857559][ T410] do_initcalls+0x1b2/0x3e0 [ 40.857738][ T410] kernel_init_freeable+0x232/0x310 [ 40.857913][ T410] kernel_init+0x20/0x200 [ 40.858090][ T410] ret_from_fork+0x31/0x70 [ 40.858262][ T410] ret_from_fork_asm+0x1a/0x30 [ 40.858433][ T410] IN-SOFTIRQ-W at: [ 40.858535][ T410] __lock_acquire+0x797/0x1570 [ 40.858710][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.858888][ T410] _raw_write_lock+0x30/0x40 [ 40.859061][ T410] addrconf_rs_timer+0xa9/0x730 [ 40.859239][ T410] call_timer_fn+0x13b/0x230 [ 40.859428][ T410] __run_timers+0x545/0x810 [ 40.859602][ T410] run_timer_softirq+0xe8/0x1b0 [ 40.859774][ T410] __do_softirq+0x1f8/0x5df [ 40.859953][ T410] irq_exit_rcu+0x97/0xc0 [ 40.860128][ T410] sysvec_apic_timer_interrupt+0x75/0x80 [ 40.860331][ T410] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 40.860543][ T410] default_idle+0xf/0x20 [ 40.860714][ T410] default_idle_call+0x6d/0xb0 [ 40.860888][ T410] cpuidle_idle_call+0x1f4/0x280 [ 40.861061][ T410] do_idle+0xf9/0x160 [ 40.861200][ T410] cpu_startup_entry+0x54/0x60 [ 40.861382][ T410] rest_init+0x14f/0x260 [ 40.861559][ T410] start_kernel+0x318/0x3d0 [ 40.861731][ T410] x86_64_start_reservations+0x18/0x30 [ 40.861910][ T410] x86_64_start_kernel+0xba/0x110 [ 40.862083][ T410] common_startup_64+0x12c/0x138 [ 40.862258][ T410] IN-SOFTIRQ-R at: [ 40.862367][ T410] __lock_acquire+0x797/0x1570 [ 40.862543][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.862715][ T410] _raw_read_lock_bh+0x44/0x80 [ 40.862891][ T410] ipv6_get_lladdr+0xa9/0x3e0 [ 40.863064][ T410] addrconf_rs_timer+0x24a/0x730 [ 40.863237][ T410] call_timer_fn+0x13b/0x230 [ 40.863410][ T410] __run_timers+0x545/0x810 [ 40.863582][ T410] run_timer_softirq+0xe8/0x1b0 [ 40.863758][ T410] __do_softirq+0x1f8/0x5df [ 40.863939][ T410] irq_exit_rcu+0x97/0xc0 [ 40.864117][ T410] sysvec_apic_timer_interrupt+0x75/0x80 [ 40.864337][ T410] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 40.864543][ T410] default_idle+0xf/0x20 [ 40.864799][ T410] default_idle_call+0x6d/0xb0 [ 40.864990][ T410] cpuidle_idle_call+0x1f4/0x280 [ 40.865163][ T410] do_idle+0xf9/0x160 [ 40.865385][ T410] cpu_startup_entry+0x54/0x60 [ 40.865561][ T410] rest_init+0x14f/0x260 [ 40.865731][ T410] start_kernel+0x318/0x3d0 [ 40.865908][ T410] x86_64_start_reservations+0x18/0x30 [ 40.866160][ T410] x86_64_start_kernel+0xba/0x110 [ 40.866333][ T410] common_startup_64+0x12c/0x138 [ 40.866505][ T410] INITIAL USE at: [ 40.866607][ T410] __lock_acquire+0x797/0x1570 [ 40.866858][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.867032][ T410] _raw_write_lock_bh+0x38/0x50 [ 40.867205][ T410] addrconf_permanent_addr+0x6e/0x670 [ 40.867461][ T410] addrconf_notify+0x749/0xd60 [ 40.867632][ T410] notifier_call_chain+0xcd/0x150 [ 40.867804][ T410] __dev_notify_flags+0xe6/0x250 [ 40.868141][ T410] dev_change_flags+0xec/0x160 [ 40.868320][ T410] do_setlink+0x7d6/0x21e0 [ 40.868493][ T410] __rtnl_newlink+0xaa7/0xd80 [ 40.868664][ T410] rtnl_newlink+0x63/0xa0 [ 40.868925][ T410] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 40.869096][ T410] netlink_rcv_skb+0x130/0x360 [ 40.869267][ T410] netlink_unicast+0x449/0x710 [ 40.869444][ T410] netlink_sendmsg+0x723/0xbe0 [ 40.869615][ T410] ____sys_sendmsg+0x7b2/0xa10 [ 40.869787][ T410] ___sys_sendmsg+0xee/0x170 [ 40.869968][ T410] __sys_sendmsg+0xcd/0x170 [ 40.870227][ T410] do_syscall_64+0xc6/0x1e0 [ 40.870402][ T410] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 40.870612][ T410] INITIAL READ USE at: [ 40.870797][ T410] __lock_acquire+0x797/0x1570 [ 40.870981][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.871155][ T410] _raw_read_lock_bh+0x44/0x80 [ 40.871334][ T410] inet6_fill_ifla6_attrs+0x516/0x740 [ 40.871621][ T410] inet6_fill_link_af+0x5e/0xe0 [ 40.871795][ T410] rtnl_fill_ifinfo+0x1612/0x29e0 [ 40.871971][ T410] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 40.872269][ T410] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 40.872480][ T410] rtmsg_ifinfo+0x5b/0xa0 [ 40.872651][ T410] register_netdevice+0x1177/0x1690 [ 40.872942][ T410] register_netdev+0x20/0x40 [ 40.873113][ T410] sit_init_net+0x250/0x4f0 [ 40.873284][ T410] ops_init+0x9b/0x560 [ 40.873545][ T410] register_pernet_operations+0x2db/0x710 [ 40.873760][ T410] register_pernet_device+0x2a/0x60 [ 40.873964][ T410] sit_init+0x23/0xe0 [ 40.874227][ T410] do_one_initcall+0x8d/0x1e0 [ 40.874400][ T410] do_initcalls+0x1b2/0x3e0 [ 40.874571][ T410] kernel_init_freeable+0x232/0x310 [ 40.874860][ T410] kernel_init+0x20/0x200 [ 40.875035][ T410] ret_from_fork+0x31/0x70 [ 40.875208][ T410] ret_from_fork_asm+0x1a/0x30 [ 40.875380][ T410] } [ 40.875452][ T410] ... key at: [] __key.37+0x0/0x40 [ 40.875660][ T410] [ 40.875660][ T410] the dependencies between the lock to be acquired [ 40.875661][ T410] and SOFTIRQ-irq-unsafe lock: [ 40.876112][ T410] -> (&p->alloc_lock){+.+.}-{2:2} { [ 40.876261][ T410] HARDIRQ-ON-W at: [ 40.876366][ T410] __lock_acquire+0x797/0x1570 [ 40.876541][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.876794][ T410] _raw_spin_lock+0x30/0x40 [ 40.876966][ T410] set_mems_allowed+0x1d/0x210 [ 40.877136][ T410] kernel_init_freeable+0x72/0x310 [ 40.877309][ T410] kernel_init+0x20/0x200 [ 40.877566][ T410] ret_from_fork+0x31/0x70 [ 40.877738][ T410] ret_from_fork_asm+0x1a/0x30 [ 40.877910][ T410] SOFTIRQ-ON-W at: [ 40.878099][ T410] __lock_acquire+0x797/0x1570 [ 40.878277][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.878448][ T410] _raw_spin_lock+0x30/0x40 [ 40.878618][ T410] set_mems_allowed+0x1d/0x210 [ 40.878965][ T410] kernel_init_freeable+0x72/0x310 [ 40.879136][ T410] kernel_init+0x20/0x200 [ 40.879306][ T410] ret_from_fork+0x31/0x70 [ 40.879481][ T410] ret_from_fork_asm+0x1a/0x30 [ 40.879657][ T410] INITIAL USE at: [ 40.879761][ T410] __lock_acquire+0x797/0x1570 [ 40.879934][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.880112][ T410] _raw_spin_lock+0x30/0x40 [ 40.880284][ T410] set_mems_allowed+0x1d/0x210 [ 40.880456][ T410] kernel_init_freeable+0x72/0x310 [ 40.880710][ T410] kernel_init+0x20/0x200 [ 40.880883][ T410] ret_from_fork+0x31/0x70 [ 40.881057][ T410] ret_from_fork_asm+0x1a/0x30 [ 40.881234][ T410] } [ 40.881387][ T410] ... key at: [] __key.387+0x0/0x40 [ 40.881597][ T410] ... acquired at: [ 40.881708][ T410] check_prev_add+0x194/0xce0 [ 40.881848][ T410] validate_chain+0x71d/0x9b0 [ 40.882065][ T410] __lock_acquire+0xaf0/0x1570 [ 40.882204][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.882341][ T410] _raw_spin_lock+0x30/0x40 [ 40.882481][ T410] __get_task_comm+0x27/0x70 [ 40.882625][ T410] ref_tracker_alloc+0x2ee/0x490 [ 40.882845][ T410] netdev_get_by_index+0x5e/0x80 [ 40.882985][ T410] fib6_nh_init+0x3d8/0x15b0 [ 40.883125][ T410] ip6_route_info_create+0xf18/0x17d0 [ 40.883263][ T410] addrconf_f6i_alloc+0x265/0x560 [ 40.883486][ T410] __ipv6_dev_ac_inc+0x25f/0xb10 [ 40.883627][ T410] addrconf_join_anycast+0x1c0/0x220 [ 40.883771][ T410] dev_forward_change+0x2a6/0x7b0 [ 40.883911][ T410] addrconf_fixup_forwarding+0x23f/0x460 [ 40.884162][ T410] addrconf_sysctl_forward+0x212/0x2b0 [ 40.884309][ T410] proc_sys_call_handler+0x403/0x5e0 [ 40.884449][ T410] vfs_write+0x9e5/0x10a0 [ 40.884589][ T410] ksys_write+0xf5/0x1e0 [ 40.884807][ T410] do_syscall_64+0xc6/0x1e0 [ 40.884947][ T410] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 40.885122][ T410] [ 40.885194][ T410] [ 40.885194][ T410] stack backtrace: [ 40.885443][ T410] CPU: 1 PID: 410 Comm: sysctl Not tainted 6.9.0-rc1-virtme #1 [ 40.885648][ T410] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 40.885955][ T410] Call Trace: [ 40.886139][ T410] [ 40.886210][ T410] dump_stack_lvl+0x82/0xd0 [ 40.886360][ T410] print_bad_irq_dependency+0x957/0xd40 [ 40.886499][ T410] ? hlock_class+0x4e/0x130 [ 40.886636][ T410] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 40.886890][ T410] ? __pfx_usage_skip+0x10/0x10 [ 40.887025][ T410] ? __bfs+0x246/0x650 [ 40.887131][ T410] ? __pfx_usage_match+0x10/0x10 [ 40.887268][ T410] check_irq_usage+0x596/0x850 [ 40.887406][ T410] ? __pfx_check_irq_usage+0x10/0x10 [ 40.887551][ T410] ? __bfs+0x246/0x650 [ 40.887657][ T410] ? __pfx_hlock_conflict+0x10/0x10 [ 40.887794][ T410] ? check_path.constprop.0+0x24/0x50 [ 40.887931][ T410] ? check_noncircular+0x14c/0x3e0 [ 40.888068][ T410] ? __pfx_check_noncircular+0x10/0x10 [ 40.888205][ T410] ? check_prev_add+0x194/0xce0 [ 40.888338][ T410] check_prev_add+0x194/0xce0 [ 40.888474][ T410] ? validate_chain+0x130/0x9b0 [ 40.888612][ T410] validate_chain+0x71d/0x9b0 [ 40.888754][ T410] ? mark_lock+0x38/0x3e0 [ 40.888857][ T410] ? __pfx_validate_chain+0x10/0x10 [ 40.888993][ T410] ? hlock_class+0x4e/0x130 [ 40.889130][ T410] ? mark_lock+0x38/0x3e0 [ 40.889234][ T410] __lock_acquire+0xaf0/0x1570 [ 40.889374][ T410] lock_acquire.part.0+0xeb/0x330 [ 40.889509][ T410] ? __get_task_comm+0x27/0x70 [ 40.889645][ T410] ? mark_lock+0x38/0x3e0 [ 40.889749][ T410] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 40.889887][ T410] ? trace_lock_acquire+0x135/0x1c0 [ 40.890022][ T410] ? __get_task_comm+0x27/0x70 [ 40.890155][ T410] ? lock_acquire+0x32/0xc0 [ 40.890291][ T410] ? __get_task_comm+0x27/0x70 [ 40.890427][ T410] _raw_spin_lock+0x30/0x40 [ 40.890568][ T410] ? __get_task_comm+0x27/0x70 [ 40.890701][ T410] __get_task_comm+0x27/0x70 [ 40.890838][ T410] ref_tracker_alloc+0x2ee/0x490 [ 40.890981][ T410] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 40.891115][ T410] ? dev_get_by_index+0x177/0x270 [ 40.891250][ T410] ? netdev_get_by_index+0x5e/0x80 [ 40.891385][ T410] ? fib6_nh_init+0x3d8/0x15b0 [ 40.891529][ T410] ? ip6_route_info_create+0xf18/0x17d0 [ 40.891666][ T410] ? addrconf_f6i_alloc+0x265/0x560 [ 40.891802][ T410] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 40.891939][ T410] ? addrconf_join_anycast+0x1c0/0x220 [ 40.892082][ T410] ? dev_forward_change+0x2a6/0x7b0 [ 40.892218][ T410] ? addrconf_fixup_forwarding+0x23f/0x460 [ 40.892387][ T410] ? addrconf_sysctl_forward+0x212/0x2b0 [ 40.892523][ T410] ? proc_sys_call_handler+0x403/0x5e0 [ 40.892662][ T410] ? vfs_write+0x9e5/0x10a0 [ 40.892798][ T410] ? ksys_write+0xf5/0x1e0 [ 40.892938][ T410] ? do_syscall_64+0xc6/0x1e0 [ 40.893074][ T410] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 40.893250][ T410] ? dev_get_by_index+0x177/0x270 [ 40.893388][ T410] netdev_get_by_index+0x5e/0x80 [ 40.893524][ T410] fib6_nh_init+0x3d8/0x15b0 [ 40.893659][ T410] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 40.893829][ T410] ? __pfx_fib6_nh_init+0x10/0x10 [ 40.893964][ T410] ? kasan_save_track+0x14/0x30 [ 40.894102][ T410] ? __kasan_kmalloc+0x7f/0x90 [ 40.894245][ T410] ? __kmalloc+0x1d7/0x3c0 [ 40.894390][ T410] ? fib6_get_table+0x116/0x290 [ 40.894527][ T410] ip6_route_info_create+0xf18/0x17d0 [ 40.894662][ T410] ? __lock_release+0x103/0x460 [ 40.894801][ T410] ? __pfx_ip6_route_info_create+0x10/0x10 [ 40.894970][ T410] ? addrconf_f6i_alloc+0x12d/0x560 [ 40.895106][ T410] addrconf_f6i_alloc+0x265/0x560 [ 40.895242][ T410] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 40.895382][ T410] ? do_raw_write_lock+0x122/0x3b0 [ 40.895525][ T410] ? __pfx_do_raw_write_lock+0x10/0x10 [ 40.895659][ T410] ? lock_acquire+0x32/0xc0 [ 40.895796][ T410] __ipv6_dev_ac_inc+0x25f/0xb10 [ 40.895936][ T410] addrconf_join_anycast+0x1c0/0x220 [ 40.896070][ T410] ? mark_lock+0x38/0x3e0 [ 40.896173][ T410] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 40.896349][ T410] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 40.896529][ T410] dev_forward_change+0x2a6/0x7b0 [ 40.896668][ T410] ? __pfx_dev_forward_change+0x10/0x10 [ 40.896809][ T410] addrconf_fixup_forwarding+0x23f/0x460 [ 40.896955][ T410] addrconf_sysctl_forward+0x212/0x2b0 [ 40.897094][ T410] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 40.897262][ T410] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 40.897431][ T410] ? trace_kmalloc+0x2a/0xe0 [ 40.897573][ T410] ? __kmalloc_node+0x220/0x400 [ 40.897715][ T410] ? proc_sys_call_handler+0x30b/0x5e0 [ 40.897852][ T410] proc_sys_call_handler+0x403/0x5e0 [ 40.897990][ T410] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 40.898160][ T410] ? __lock_acquire+0xaf0/0x1570 [ 40.898298][ T410] vfs_write+0x9e5/0x10a0 [ 40.898401][ T410] ? do_user_addr_fault+0x449/0xbe0 [ 40.898546][ T410] ? __pfx_vfs_write+0x10/0x10 [ 40.898683][ T410] ? find_held_lock+0x2c/0x110 [ 40.898826][ T410] ? __pfx___lock_release+0x10/0x10 [ 40.898963][ T410] ? __fget_light+0x53/0x1e0 [ 40.899102][ T410] ksys_write+0xf5/0x1e0 [ 40.899206][ T410] ? __pfx_ksys_write+0x10/0x10 [ 40.899342][ T410] ? do_user_addr_fault+0x4bd/0xbe0 [ 40.899478][ T410] do_syscall_64+0xc6/0x1e0 [ 40.899616][ T410] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 40.899784][ T410] RIP: 0033:0x7f2793dd5957 [ 40.899935][ T410] 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 [ 40.900412][ T410] RSP: 002b:00007fff8aaa33f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 40.900632][ T410] RAX: ffffffffffffffda RBX: 00005577f1dad360 RCX: 00007f2793dd5957 [ 40.900834][ T410] RDX: 0000000000000002 RSI: 00005577f1dad3a0 RDI: 0000000000000005 [ 40.901041][ T410] RBP: 00005577f1daf4d0 R08: 0000000000000003 R09: 0000000000000077 [ 40.901242][ T410] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 [ 40.901527][ T410] R13: 0000000000000002 R14: 0000000000000002 R15: 00007f2793e8c9c0 [ 40.901730][ T410] WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr