[ 52.719094][ T513] gre: GRE over IPv4 demultiplexor driver [ 52.735461][ T513] ip_gre: GRE over IPv4 tunneling driver [ 55.197599][ T536] 8021q: 802.1Q VLAN Support v1.8 [ 63.110602][ T608] [ 63.110761][ T608] ===================================================== [ 63.111025][ T608] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 63.111371][ T608] 6.9.0-rc1-virtme #1 Not tainted [ 63.111589][ T608] ----------------------------------------------------- [ 63.111867][ T608] sysctl/608 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 63.112176][ T608] ffff8880060a4ee8 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 63.112557][ T608] [ 63.112557][ T608] and this task is already holding: [ 63.112858][ T608] ffff88800281ed80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 63.113241][ T608] which would create a new lock dependency: [ 63.113517][ T608] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 63.113856][ T608] [ 63.113856][ T608] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 63.114228][ T608] (&ndev->lock){++--}-{2:2} [ 63.114236][ T608] [ 63.114236][ T608] ... which became SOFTIRQ-irq-safe at: [ 63.114771][ T608] __lock_acquire+0x797/0x1570 [ 63.114994][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.115217][ T608] _raw_write_lock+0x30/0x40 [ 63.115443][ T608] addrconf_rs_timer+0xa9/0x730 [ 63.115674][ T608] call_timer_fn+0x13b/0x230 [ 63.115896][ T608] __run_timers+0x545/0x810 [ 63.116106][ T608] run_timer_softirq+0xe8/0x1b0 [ 63.116328][ T608] __do_softirq+0x1f8/0x5df [ 63.116554][ T608] irq_exit_rcu+0x97/0xc0 [ 63.116786][ T608] sysvec_apic_timer_interrupt+0x75/0x80 [ 63.117009][ T608] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 63.117290][ T608] default_idle+0xf/0x20 [ 63.117462][ T608] default_idle_call+0x6d/0xb0 [ 63.117695][ T608] cpuidle_idle_call+0x1f4/0x280 [ 63.117922][ T608] do_idle+0xf9/0x160 [ 63.118084][ T608] cpu_startup_entry+0x54/0x60 [ 63.118296][ T608] rest_init+0x14f/0x260 [ 63.118456][ T608] start_kernel+0x318/0x3d0 [ 63.118683][ T608] x86_64_start_reservations+0x18/0x30 [ 63.118907][ T608] x86_64_start_kernel+0xba/0x110 [ 63.119121][ T608] common_startup_64+0x12c/0x138 [ 63.119343][ T608] [ 63.119343][ T608] to a SOFTIRQ-irq-unsafe lock: [ 63.119624][ T608] (&p->alloc_lock){+.+.}-{2:2} [ 63.119633][ T608] [ 63.119633][ T608] ... which became SOFTIRQ-irq-unsafe at: [ 63.120170][ T608] ... [ 63.120172][ T608] __lock_acquire+0x797/0x1570 [ 63.120500][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.120723][ T608] _raw_spin_lock+0x30/0x40 [ 63.120946][ T608] set_mems_allowed+0x1d/0x210 [ 63.121190][ T608] kernel_init_freeable+0x72/0x310 [ 63.121412][ T608] kernel_init+0x20/0x200 [ 63.121645][ T608] ret_from_fork+0x31/0x70 [ 63.121873][ T608] ret_from_fork_asm+0x1a/0x30 [ 63.122103][ T608] [ 63.122103][ T608] other info that might help us debug this: [ 63.122103][ T608] [ 63.122541][ T608] Possible interrupt unsafe locking scenario: [ 63.122541][ T608] [ 63.122876][ T608] CPU0 CPU1 [ 63.123100][ T608] ---- ---- [ 63.123321][ T608] lock(&p->alloc_lock); [ 63.123495][ T608] local_irq_disable(); [ 63.123762][ T608] lock(&ndev->lock); [ 63.124011][ T608] lock(&p->alloc_lock); [ 63.124187][ T608] [ 63.124313][ T608] lock(&ndev->lock); [ 63.124428][ T608] [ 63.124428][ T608] *** DEADLOCK *** [ 63.124428][ T608] [ 63.124641][ T608] 3 locks held by sysctl/608: [ 63.124786][ T608] #0: ffff8880060ac3f0 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0xf5/0x1e0 [ 63.125047][ T608] #1: ffffffff983969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_fixup_forwarding+0x20/0x460 [ 63.125354][ T608] #2: ffff88800281ed80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 63.125611][ T608] [ 63.125611][ T608] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 63.125889][ T608] -> (&ndev->lock){++--}-{2:2} { [ 63.126039][ T608] HARDIRQ-ON-W at: [ 63.126149][ T608] __lock_acquire+0x797/0x1570 [ 63.126344][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.126521][ T608] _raw_write_lock_bh+0x38/0x50 [ 63.126711][ T608] addrconf_permanent_addr+0x6e/0x670 [ 63.126889][ T608] addrconf_notify+0x749/0xd60 [ 63.127066][ T608] notifier_call_chain+0xcd/0x150 [ 63.127255][ T608] __dev_notify_flags+0xe6/0x250 [ 63.127430][ T608] dev_change_flags+0xec/0x160 [ 63.127605][ T608] do_setlink+0x7d6/0x21e0 [ 63.127793][ T608] __rtnl_newlink+0xaa7/0xd80 [ 63.127974][ T608] rtnl_newlink+0x63/0xa0 [ 63.128149][ T608] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 63.128336][ T608] netlink_rcv_skb+0x130/0x360 [ 63.128515][ T608] netlink_unicast+0x449/0x710 [ 63.128688][ T608] netlink_sendmsg+0x723/0xbe0 [ 63.128864][ T608] ____sys_sendmsg+0x7b2/0xa10 [ 63.129049][ T608] ___sys_sendmsg+0xee/0x170 [ 63.129242][ T608] __sys_sendmsg+0xcd/0x170 [ 63.129525][ T608] do_syscall_64+0xc6/0x1e0 [ 63.129814][ T608] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 63.130156][ T608] HARDIRQ-ON-R at: [ 63.130338][ T608] __lock_acquire+0x797/0x1570 [ 63.130625][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.130867][ T608] _raw_read_lock_bh+0x44/0x80 [ 63.131045][ T608] inet6_fill_ifla6_attrs+0x516/0x740 [ 63.131256][ T608] inet6_fill_link_af+0x5e/0xe0 [ 63.131438][ T608] rtnl_fill_ifinfo+0x1612/0x29e0 [ 63.131614][ T608] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 63.131794][ T608] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 63.132012][ T608] rtmsg_ifinfo+0x5b/0xa0 [ 63.132187][ T608] register_netdevice+0x1177/0x1690 [ 63.132378][ T608] register_netdev+0x20/0x40 [ 63.132563][ T608] sit_init_net+0x250/0x4f0 [ 63.132750][ T608] ops_init+0x9b/0x560 [ 63.132898][ T608] register_pernet_operations+0x2db/0x710 [ 63.133113][ T608] register_pernet_device+0x2a/0x60 [ 63.133296][ T608] sit_init+0x23/0xe0 [ 63.133443][ T608] do_one_initcall+0x8d/0x1e0 [ 63.133619][ T608] do_initcalls+0x1b2/0x3e0 [ 63.133801][ T608] kernel_init_freeable+0x232/0x310 [ 63.133983][ T608] kernel_init+0x20/0x200 [ 63.134161][ T608] ret_from_fork+0x31/0x70 [ 63.134359][ T608] ret_from_fork_asm+0x1a/0x30 [ 63.134539][ T608] IN-SOFTIRQ-W at: [ 63.134650][ T608] __lock_acquire+0x797/0x1570 [ 63.134825][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.135006][ T608] _raw_write_lock+0x30/0x40 [ 63.135289][ T608] addrconf_rs_timer+0xa9/0x730 [ 63.135472][ T608] call_timer_fn+0x13b/0x230 [ 63.135657][ T608] __run_timers+0x545/0x810 [ 63.135918][ T608] run_timer_softirq+0xe8/0x1b0 [ 63.136099][ T608] __do_softirq+0x1f8/0x5df [ 63.136292][ T608] irq_exit_rcu+0x97/0xc0 [ 63.136471][ T608] sysvec_apic_timer_interrupt+0x75/0x80 [ 63.136769][ T608] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 63.136990][ T608] default_idle+0xf/0x20 [ 63.137169][ T608] default_idle_call+0x6d/0xb0 [ 63.137435][ T608] cpuidle_idle_call+0x1f4/0x280 [ 63.137616][ T608] do_idle+0xf9/0x160 [ 63.137760][ T608] cpu_startup_entry+0x54/0x60 [ 63.138030][ T608] rest_init+0x14f/0x260 [ 63.138219][ T608] start_kernel+0x318/0x3d0 [ 63.138503][ T608] x86_64_start_reservations+0x18/0x30 [ 63.138782][ T608] x86_64_start_kernel+0xba/0x110 [ 63.139072][ T608] common_startup_64+0x12c/0x138 [ 63.139352][ T608] IN-SOFTIRQ-R at: [ 63.139525][ T608] __lock_acquire+0x797/0x1570 [ 63.139810][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.140098][ T608] _raw_read_lock_bh+0x44/0x80 [ 63.140377][ T608] ipv6_get_lladdr+0xa9/0x3e0 [ 63.140660][ T608] addrconf_rs_timer+0x24a/0x730 [ 63.141097][ T608] call_timer_fn+0x13b/0x230 [ 63.141389][ T608] __run_timers+0x545/0x810 [ 63.141579][ T608] run_timer_softirq+0xe8/0x1b0 [ 63.141851][ T608] __do_softirq+0x1f8/0x5df [ 63.142029][ T608] irq_exit_rcu+0x97/0xc0 [ 63.142215][ T608] sysvec_apic_timer_interrupt+0x75/0x80 [ 63.142438][ T608] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 63.142738][ T608] default_idle+0xf/0x20 [ 63.142919][ T608] default_idle_call+0x6d/0xb0 [ 63.143095][ T608] cpuidle_idle_call+0x1f4/0x280 [ 63.143376][ T608] do_idle+0xf9/0x160 [ 63.143517][ T608] cpu_startup_entry+0x54/0x60 [ 63.143695][ T608] rest_init+0x14f/0x260 [ 63.143955][ T608] start_kernel+0x318/0x3d0 [ 63.144132][ T608] x86_64_start_reservations+0x18/0x30 [ 63.144318][ T608] x86_64_start_kernel+0xba/0x110 [ 63.144499][ T608] common_startup_64+0x12c/0x138 [ 63.144759][ T608] INITIAL USE at: [ 63.144866][ T608] __lock_acquire+0x797/0x1570 [ 63.145042][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.145228][ T608] _raw_write_lock_bh+0x38/0x50 [ 63.145487][ T608] addrconf_permanent_addr+0x6e/0x670 [ 63.145669][ T608] addrconf_notify+0x749/0xd60 [ 63.145848][ T608] notifier_call_chain+0xcd/0x150 [ 63.146116][ T608] __dev_notify_flags+0xe6/0x250 [ 63.146301][ T608] dev_change_flags+0xec/0x160 [ 63.146475][ T608] do_setlink+0x7d6/0x21e0 [ 63.146651][ T608] __rtnl_newlink+0xaa7/0xd80 [ 63.146827][ T608] rtnl_newlink+0x63/0xa0 [ 63.147007][ T608] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 63.147182][ T608] netlink_rcv_skb+0x130/0x360 [ 63.147451][ T608] netlink_unicast+0x449/0x710 [ 63.147648][ T608] netlink_sendmsg+0x723/0xbe0 [ 63.147827][ T608] ____sys_sendmsg+0x7b2/0xa10 [ 63.148010][ T608] ___sys_sendmsg+0xee/0x170 [ 63.148188][ T608] __sys_sendmsg+0xcd/0x170 [ 63.148386][ T608] do_syscall_64+0xc6/0x1e0 [ 63.148565][ T608] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 63.148859][ T608] INITIAL READ USE at: [ 63.148967][ T608] __lock_acquire+0x797/0x1570 [ 63.149143][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.149421][ T608] _raw_read_lock_bh+0x44/0x80 [ 63.149607][ T608] inet6_fill_ifla6_attrs+0x516/0x740 [ 63.149821][ T608] inet6_fill_link_af+0x5e/0xe0 [ 63.150104][ T608] rtnl_fill_ifinfo+0x1612/0x29e0 [ 63.150292][ T608] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 63.150502][ T608] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 63.150720][ T608] rtmsg_ifinfo+0x5b/0xa0 [ 63.150912][ T608] register_netdevice+0x1177/0x1690 [ 63.151133][ T608] register_netdev+0x20/0x40 [ 63.151319][ T608] sit_init_net+0x250/0x4f0 [ 63.151498][ T608] ops_init+0x9b/0x560 [ 63.151675][ T608] register_pernet_operations+0x2db/0x710 [ 63.151891][ T608] register_pernet_device+0x2a/0x60 [ 63.152221][ T608] sit_init+0x23/0xe0 [ 63.152397][ T608] do_one_initcall+0x8d/0x1e0 [ 63.152575][ T608] do_initcalls+0x1b2/0x3e0 [ 63.152759][ T608] kernel_init_freeable+0x232/0x310 [ 63.152971][ T608] kernel_init+0x20/0x200 [ 63.153147][ T608] ret_from_fork+0x31/0x70 [ 63.153351][ T608] ret_from_fork_asm+0x1a/0x30 [ 63.153527][ T608] } [ 63.153601][ T608] ... key at: [] __key.37+0x0/0x40 [ 63.153818][ T608] [ 63.153818][ T608] the dependencies between the lock to be acquired [ 63.153820][ T608] and SOFTIRQ-irq-unsafe lock: [ 63.154196][ T608] -> (&p->alloc_lock){+.+.}-{2:2} { [ 63.154438][ T608] HARDIRQ-ON-W at: [ 63.154613][ T608] __lock_acquire+0x797/0x1570 [ 63.154919][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.155099][ T608] _raw_spin_lock+0x30/0x40 [ 63.155288][ T608] set_mems_allowed+0x1d/0x210 [ 63.155548][ T608] kernel_init_freeable+0x72/0x310 [ 63.155729][ T608] kernel_init+0x20/0x200 [ 63.155906][ T608] ret_from_fork+0x31/0x70 [ 63.156084][ T608] ret_from_fork_asm+0x1a/0x30 [ 63.156352][ T608] SOFTIRQ-ON-W at: [ 63.156459][ T608] __lock_acquire+0x797/0x1570 [ 63.156641][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.156897][ T608] _raw_spin_lock+0x30/0x40 [ 63.157070][ T608] set_mems_allowed+0x1d/0x210 [ 63.157263][ T608] kernel_init_freeable+0x72/0x310 [ 63.157436][ T608] kernel_init+0x20/0x200 [ 63.157702][ T608] ret_from_fork+0x31/0x70 [ 63.157875][ T608] ret_from_fork_asm+0x1a/0x30 [ 63.158050][ T608] INITIAL USE at: [ 63.158157][ T608] __lock_acquire+0x797/0x1570 [ 63.158429][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.158605][ T608] _raw_spin_lock+0x30/0x40 [ 63.158785][ T608] set_mems_allowed+0x1d/0x210 [ 63.159040][ T608] kernel_init_freeable+0x72/0x310 [ 63.159217][ T608] kernel_init+0x20/0x200 [ 63.159388][ T608] ret_from_fork+0x31/0x70 [ 63.159639][ T608] ret_from_fork_asm+0x1a/0x30 [ 63.159814][ T608] } [ 63.159890][ T608] ... key at: [] __key.387+0x0/0x40 [ 63.160096][ T608] ... acquired at: [ 63.160207][ T608] check_prev_add+0x194/0xce0 [ 63.160436][ T608] validate_chain+0x71d/0x9b0 [ 63.160572][ T608] __lock_acquire+0xaf0/0x1570 [ 63.160713][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.160848][ T608] _raw_spin_lock+0x30/0x40 [ 63.161068][ T608] __get_task_comm+0x27/0x70 [ 63.161231][ T608] ref_tracker_alloc+0x2ee/0x490 [ 63.161379][ T608] netdev_get_by_index+0x5e/0x80 [ 63.161516][ T608] fib6_nh_init+0x3d8/0x15b0 [ 63.161659][ T608] ip6_route_info_create+0xf18/0x17d0 [ 63.161798][ T608] addrconf_f6i_alloc+0x265/0x560 [ 63.161935][ T608] __ipv6_dev_ac_inc+0x25f/0xb10 [ 63.162072][ T608] addrconf_join_anycast+0x1c0/0x220 [ 63.162217][ T608] dev_forward_change+0x2a6/0x7b0 [ 63.162385][ T608] addrconf_fixup_forwarding+0x23f/0x460 [ 63.162558][ T608] addrconf_sysctl_forward+0x212/0x2b0 [ 63.162697][ T608] proc_sys_call_handler+0x403/0x5e0 [ 63.162922][ T608] vfs_write+0x9e5/0x10a0 [ 63.163060][ T608] ksys_write+0xf5/0x1e0 [ 63.163195][ T608] do_syscall_64+0xc6/0x1e0 [ 63.163343][ T608] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 63.163614][ T608] [ 63.163686][ T608] [ 63.163686][ T608] stack backtrace: [ 63.163854][ T608] CPU: 3 PID: 608 Comm: sysctl Not tainted 6.9.0-rc1-virtme #1 [ 63.164064][ T608] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 63.164447][ T608] Call Trace: [ 63.164555][ T608] [ 63.164626][ T608] dump_stack_lvl+0x82/0xd0 [ 63.164770][ T608] print_bad_irq_dependency+0x957/0xd40 [ 63.164997][ T608] ? hlock_class+0x4e/0x130 [ 63.165134][ T608] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 63.165315][ T608] ? __pfx_usage_skip+0x10/0x10 [ 63.165451][ T608] ? __bfs+0x246/0x650 [ 63.165637][ T608] ? __pfx_usage_match+0x10/0x10 [ 63.165783][ T608] check_irq_usage+0x596/0x850 [ 63.165920][ T608] ? __pfx_check_irq_usage+0x10/0x10 [ 63.166060][ T608] ? __bfs+0x246/0x650 [ 63.166170][ T608] ? __pfx_hlock_conflict+0x10/0x10 [ 63.166392][ T608] ? check_path.constprop.0+0x24/0x50 [ 63.166531][ T608] ? check_noncircular+0x14c/0x3e0 [ 63.166672][ T608] ? __pfx_check_noncircular+0x10/0x10 [ 63.166815][ T608] ? check_prev_add+0x194/0xce0 [ 63.167039][ T608] check_prev_add+0x194/0xce0 [ 63.167175][ T608] ? validate_chain+0x130/0x9b0 [ 63.167312][ T608] validate_chain+0x71d/0x9b0 [ 63.167455][ T608] ? mark_lock+0x38/0x3e0 [ 63.167563][ T608] ? __pfx_validate_chain+0x10/0x10 [ 63.167703][ T608] ? hlock_class+0x4e/0x130 [ 63.167843][ T608] ? mark_lock+0x38/0x3e0 [ 63.167948][ T608] __lock_acquire+0xaf0/0x1570 [ 63.168087][ T608] lock_acquire.part.0+0xeb/0x330 [ 63.168223][ T608] ? __get_task_comm+0x27/0x70 [ 63.168362][ T608] ? mark_lock+0x38/0x3e0 [ 63.168470][ T608] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 63.168614][ T608] ? trace_lock_acquire+0x135/0x1c0 [ 63.168753][ T608] ? __get_task_comm+0x27/0x70 [ 63.168898][ T608] ? lock_acquire+0x32/0xc0 [ 63.169034][ T608] ? __get_task_comm+0x27/0x70 [ 63.169173][ T608] _raw_spin_lock+0x30/0x40 [ 63.169313][ T608] ? __get_task_comm+0x27/0x70 [ 63.169533][ T608] __get_task_comm+0x27/0x70 [ 63.169670][ T608] ref_tracker_alloc+0x2ee/0x490 [ 63.169811][ T608] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 63.169954][ T608] ? dev_get_by_index+0x177/0x270 [ 63.170173][ T608] ? netdev_get_by_index+0x5e/0x80 [ 63.170314][ T608] ? fib6_nh_init+0x3d8/0x15b0 [ 63.170450][ T608] ? ip6_route_info_create+0xf18/0x17d0 [ 63.170586][ T608] ? addrconf_f6i_alloc+0x265/0x560 [ 63.170806][ T608] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 63.170943][ T608] ? addrconf_join_anycast+0x1c0/0x220 [ 63.171083][ T608] ? dev_forward_change+0x2a6/0x7b0 [ 63.171247][ T608] ? addrconf_fixup_forwarding+0x23f/0x460 [ 63.171500][ T608] ? addrconf_sysctl_forward+0x212/0x2b0 [ 63.171637][ T608] ? proc_sys_call_handler+0x403/0x5e0 [ 63.171779][ T608] ? vfs_write+0x9e5/0x10a0 [ 63.171915][ T608] ? ksys_write+0xf5/0x1e0 [ 63.172052][ T608] ? do_syscall_64+0xc6/0x1e0 [ 63.172271][ T608] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 63.172449][ T608] ? dev_get_by_index+0x177/0x270 [ 63.172589][ T608] netdev_get_by_index+0x5e/0x80 [ 63.172728][ T608] fib6_nh_init+0x3d8/0x15b0 [ 63.173032][ T608] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 63.173202][ T608] ? __pfx_fib6_nh_init+0x10/0x10 [ 63.173340][ T608] ? kasan_save_track+0x14/0x30 [ 63.173478][ T608] ? __kasan_kmalloc+0x7f/0x90 [ 63.173697][ T608] ? __kmalloc+0x1d7/0x3c0 [ 63.173839][ T608] ? fib6_get_table+0x116/0x290 [ 63.173979][ T608] ip6_route_info_create+0xf18/0x17d0 [ 63.174115][ T608] ? __lock_release+0x103/0x460 [ 63.174334][ T608] ? __pfx_ip6_route_info_create+0x10/0x10 [ 63.174509][ T608] ? addrconf_f6i_alloc+0x12d/0x560 [ 63.174646][ T608] addrconf_f6i_alloc+0x265/0x560 [ 63.174789][ T608] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 63.175014][ T608] ? do_raw_write_lock+0x122/0x3b0 [ 63.175153][ T608] ? __pfx_do_raw_write_lock+0x10/0x10 [ 63.175289][ T608] ? lock_acquire+0x32/0xc0 [ 63.175433][ T608] __ipv6_dev_ac_inc+0x25f/0xb10 [ 63.175654][ T608] addrconf_join_anycast+0x1c0/0x220 [ 63.175803][ T608] ? mark_lock+0x38/0x3e0 [ 63.175908][ T608] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 63.176083][ T608] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 63.176335][ T608] dev_forward_change+0x2a6/0x7b0 [ 63.176487][ T608] ? __pfx_dev_forward_change+0x10/0x10 [ 63.176626][ T608] addrconf_fixup_forwarding+0x23f/0x460 [ 63.176767][ T608] addrconf_sysctl_forward+0x212/0x2b0 [ 63.176987][ T608] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 63.177161][ T608] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 63.177333][ T608] ? trace_kmalloc+0x2a/0xe0 [ 63.177472][ T608] ? __kmalloc_node+0x220/0x400 [ 63.177697][ T608] ? proc_sys_call_handler+0x30b/0x5e0 [ 63.177838][ T608] proc_sys_call_handler+0x403/0x5e0 [ 63.177979][ T608] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 63.178148][ T608] ? __lock_acquire+0xaf0/0x1570 [ 63.178369][ T608] vfs_write+0x9e5/0x10a0 [ 63.178473][ T608] ? do_user_addr_fault+0x449/0xbe0 [ 63.178610][ T608] ? __pfx_vfs_write+0x10/0x10 [ 63.178749][ T608] ? find_held_lock+0x2c/0x110 [ 63.178893][ T608] ? __pfx___lock_release+0x10/0x10 [ 63.179117][ T608] ? __fget_light+0x53/0x1e0 [ 63.179258][ T608] ksys_write+0xf5/0x1e0 [ 63.179365][ T608] ? __pfx_ksys_write+0x10/0x10 [ 63.179501][ T608] ? do_user_addr_fault+0x4bd/0xbe0 [ 63.179639][ T608] do_syscall_64+0xc6/0x1e0 [ 63.179779][ T608] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 63.179951][ T608] RIP: 0033:0x7f60aba57957 [ 63.180095][ T608] 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 [ 63.180588][ T608] RSP: 002b:00007ffffd0c6298 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 63.180798][ T608] RAX: ffffffffffffffda RBX: 00005592c173b360 RCX: 00007f60aba57957 [ 63.181006][ T608] RDX: 0000000000000002 RSI: 00005592c173b3a0 RDI: 0000000000000005 [ 63.181232][ T608] RBP: 00005592c173d4d0 R08: 0000000000000003 R09: 0000000000000077 [ 63.181521][ T608] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 [ 63.181730][ T608] R13: 0000000000000002 R14: 0000000000000002 R15: 00007f60abb0e9c0 [ 63.181942][ T608] WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr