[ 24.072051][ T236] ip (236) used greatest stack depth: 24736 bytes left [ 26.007717][ T271] ip (271) used greatest stack depth: 24496 bytes left [ 30.238337][ T310] gre: GRE over IPv4 demultiplexor driver [ 30.297134][ T310] ip6_gre: GRE over IPv6 tunneling driver [ 30.440978][ T313] ip (313) used greatest stack depth: 24400 bytes left [ 32.353361][ T331] 8021q: 802.1Q VLAN Support v1.8 [ 36.358700][ T369] GACT probability NOT on [ 38.120241][ T385] ip (385) used greatest stack depth: 24240 bytes left [ 39.935691][ T402] [ 39.935797][ T402] ===================================================== [ 39.935988][ T402] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 39.936203][ T402] 6.9.0-rc1-virtme #1 Not tainted [ 39.936344][ T402] ----------------------------------------------------- [ 39.936524][ T402] sysctl/402 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 39.936730][ T402] ffff888005e84ee8 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 39.936986][ T402] [ 39.936986][ T402] and this task is already holding: [ 39.937186][ T402] ffff88800236bd80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 39.937434][ T402] which would create a new lock dependency: [ 39.937606][ T402] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 39.937811][ T402] [ 39.937811][ T402] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 39.938046][ T402] (&ndev->lock){++--}-{2:2} [ 39.938050][ T402] [ 39.938050][ T402] ... which became SOFTIRQ-irq-safe at: [ 39.938385][ T402] __lock_acquire+0x797/0x1570 [ 39.938532][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.938671][ T402] _raw_write_lock+0x30/0x40 [ 39.938808][ T402] addrconf_rs_timer+0xa9/0x730 [ 39.938945][ T402] call_timer_fn+0x13b/0x230 [ 39.939086][ T402] __run_timers+0x545/0x810 [ 39.939221][ T402] run_timer_softirq+0xe8/0x1b0 [ 39.939357][ T402] __do_softirq+0x1f8/0x5df [ 39.939493][ T402] irq_exit_rcu+0x97/0xc0 [ 39.939633][ T402] sysvec_apic_timer_interrupt+0x75/0x80 [ 39.939771][ T402] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 39.939948][ T402] default_idle+0xf/0x20 [ 39.940052][ T402] default_idle_call+0x6d/0xb0 [ 39.940189][ T402] cpuidle_idle_call+0x1f4/0x280 [ 39.940330][ T402] do_idle+0xf9/0x160 [ 39.940434][ T402] cpu_startup_entry+0x54/0x60 [ 39.940570][ T402] rest_init+0x14f/0x260 [ 39.940672][ T402] start_kernel+0x318/0x3d0 [ 39.940815][ T402] x86_64_start_reservations+0x18/0x30 [ 39.940951][ T402] x86_64_start_kernel+0xba/0x110 [ 39.941092][ T402] common_startup_64+0x12c/0x138 [ 39.941244][ T402] [ 39.941244][ T402] to a SOFTIRQ-irq-unsafe lock: [ 39.941417][ T402] (&p->alloc_lock){+.+.}-{2:2} [ 39.941421][ T402] [ 39.941421][ T402] ... which became SOFTIRQ-irq-unsafe at: [ 39.941751][ T402] ... [ 39.941753][ T402] __lock_acquire+0x797/0x1570 [ 39.941959][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.942101][ T402] _raw_spin_lock+0x30/0x40 [ 39.942240][ T402] set_mems_allowed+0x1d/0x210 [ 39.942381][ T402] kernel_init_freeable+0x72/0x310 [ 39.942517][ T402] kernel_init+0x20/0x200 [ 39.942655][ T402] ret_from_fork+0x31/0x70 [ 39.942792][ T402] ret_from_fork_asm+0x1a/0x30 [ 39.942927][ T402] [ 39.942927][ T402] other info that might help us debug this: [ 39.942927][ T402] [ 39.943197][ T402] Possible interrupt unsafe locking scenario: [ 39.943197][ T402] [ 39.943408][ T402] CPU0 CPU1 [ 39.943542][ T402] ---- ---- [ 39.943677][ T402] lock(&p->alloc_lock); [ 39.943783][ T402] local_irq_disable(); [ 39.943952][ T402] lock(&ndev->lock); [ 39.944120][ T402] lock(&p->alloc_lock); [ 39.944293][ T402] [ 39.944399][ T402] lock(&ndev->lock); [ 39.944504][ T402] [ 39.944504][ T402] *** DEADLOCK *** [ 39.944504][ T402] [ 39.944704][ T402] 3 locks held by sysctl/402: [ 39.944840][ T402] #0: ffff88803a5a93f0 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0xf5/0x1e0 [ 39.945093][ T402] #1: ffffffff857969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_fixup_forwarding+0x20/0x460 [ 39.945376][ T402] #2: ffff88800236bd80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 39.945619][ T402] [ 39.945619][ T402] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 39.945884][ T402] -> (&ndev->lock){++--}-{2:2} { [ 39.946033][ T402] HARDIRQ-ON-W at: [ 39.946145][ T402] __lock_acquire+0x797/0x1570 [ 39.946322][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.946497][ T402] _raw_write_lock_bh+0x38/0x50 [ 39.946669][ T402] addrconf_permanent_addr+0x6e/0x670 [ 39.946843][ T402] addrconf_notify+0x749/0xd60 [ 39.947016][ T402] notifier_call_chain+0xcd/0x150 [ 39.947190][ T402] __dev_notify_flags+0xe6/0x250 [ 39.947365][ T402] dev_change_flags+0xec/0x160 [ 39.947542][ T402] do_setlink+0x7d6/0x21e0 [ 39.947714][ T402] __rtnl_newlink+0xaa7/0xd80 [ 39.947891][ T402] rtnl_newlink+0x63/0xa0 [ 39.948063][ T402] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 39.948235][ T402] netlink_rcv_skb+0x130/0x360 [ 39.948411][ T402] netlink_unicast+0x449/0x710 [ 39.948584][ T402] netlink_sendmsg+0x723/0xbe0 [ 39.948760][ T402] ____sys_sendmsg+0x7b2/0xa10 [ 39.948934][ T402] ___sys_sendmsg+0xee/0x170 [ 39.949108][ T402] __sys_sendmsg+0xcd/0x170 [ 39.949281][ T402] do_syscall_64+0xc6/0x1e0 [ 39.949455][ T402] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.949665][ T402] HARDIRQ-ON-R at: [ 39.949769][ T402] __lock_acquire+0x797/0x1570 [ 39.949945][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.950116][ T402] _raw_read_lock_bh+0x44/0x80 [ 39.950288][ T402] inet6_fill_ifla6_attrs+0x516/0x740 [ 39.950460][ T402] inet6_fill_link_af+0x5e/0xe0 [ 39.950630][ T402] rtnl_fill_ifinfo+0x1612/0x29e0 [ 39.950800][ T402] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 39.950981][ T402] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 39.951195][ T402] rtmsg_ifinfo+0x5b/0xa0 [ 39.951371][ T402] register_netdevice+0x1177/0x1690 [ 39.951544][ T402] register_netdev+0x20/0x40 [ 39.951719][ T402] sit_init_net+0x250/0x4f0 [ 39.951892][ T402] ops_init+0x9b/0x560 [ 39.952038][ T402] register_pernet_operations+0x2db/0x710 [ 39.952244][ T402] register_pernet_device+0x2a/0x60 [ 39.952418][ T402] sit_init+0x23/0xe0 [ 39.952558][ T402] do_one_initcall+0x8d/0x1e0 [ 39.952736][ T402] do_initcalls+0x1b2/0x3e0 [ 39.952908][ T402] kernel_init_freeable+0x232/0x310 [ 39.953086][ T402] kernel_init+0x20/0x200 [ 39.953261][ T402] ret_from_fork+0x31/0x70 [ 39.953436][ T402] ret_from_fork_asm+0x1a/0x30 [ 39.953612][ T402] IN-SOFTIRQ-W at: [ 39.953717][ T402] __lock_acquire+0x797/0x1570 [ 39.953891][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.954064][ T402] _raw_write_lock+0x30/0x40 [ 39.954243][ T402] addrconf_rs_timer+0xa9/0x730 [ 39.954418][ T402] call_timer_fn+0x13b/0x230 [ 39.954593][ T402] __run_timers+0x545/0x810 [ 39.954767][ T402] run_timer_softirq+0xe8/0x1b0 [ 39.954939][ T402] __do_softirq+0x1f8/0x5df [ 39.955113][ T402] irq_exit_rcu+0x97/0xc0 [ 39.955285][ T402] sysvec_apic_timer_interrupt+0x75/0x80 [ 39.955495][ T402] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 39.955705][ T402] default_idle+0xf/0x20 [ 39.955876][ T402] default_idle_call+0x6d/0xb0 [ 39.956049][ T402] cpuidle_idle_call+0x1f4/0x280 [ 39.956226][ T402] do_idle+0xf9/0x160 [ 39.956364][ T402] cpu_startup_entry+0x54/0x60 [ 39.956539][ T402] rest_init+0x14f/0x260 [ 39.956711][ T402] start_kernel+0x318/0x3d0 [ 39.956886][ T402] x86_64_start_reservations+0x18/0x30 [ 39.957059][ T402] x86_64_start_kernel+0xba/0x110 [ 39.957228][ T402] common_startup_64+0x12c/0x138 [ 39.957403][ T402] IN-SOFTIRQ-R at: [ 39.957511][ T402] __lock_acquire+0x797/0x1570 [ 39.957683][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.957856][ T402] _raw_read_lock_bh+0x44/0x80 [ 39.958030][ T402] ipv6_get_lladdr+0xa9/0x3e0 [ 39.958203][ T402] addrconf_rs_timer+0x24a/0x730 [ 39.958373][ T402] call_timer_fn+0x13b/0x230 [ 39.958548][ T402] __run_timers+0x545/0x810 [ 39.958810][ T402] run_timer_softirq+0xe8/0x1b0 [ 39.958983][ T402] __do_softirq+0x1f8/0x5df [ 39.959154][ T402] irq_exit_rcu+0x97/0xc0 [ 39.959412][ T402] sysvec_apic_timer_interrupt+0x75/0x80 [ 39.959616][ T402] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 39.959823][ T402] default_idle+0xf/0x20 [ 39.960084][ T402] default_idle_call+0x6d/0xb0 [ 39.960261][ T402] cpuidle_idle_call+0x1f4/0x280 [ 39.960433][ T402] do_idle+0xf9/0x160 [ 39.960573][ T402] cpu_startup_entry+0x54/0x60 [ 39.960913][ T402] rest_init+0x14f/0x260 [ 39.961087][ T402] start_kernel+0x318/0x3d0 [ 39.961267][ T402] x86_64_start_reservations+0x18/0x30 [ 39.961528][ T402] x86_64_start_kernel+0xba/0x110 [ 39.961703][ T402] common_startup_64+0x12c/0x138 [ 39.961874][ T402] INITIAL USE at: [ 39.961978][ T402] __lock_acquire+0x797/0x1570 [ 39.962232][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.962405][ T402] _raw_write_lock_bh+0x38/0x50 [ 39.962582][ T402] addrconf_permanent_addr+0x6e/0x670 [ 39.962835][ T402] addrconf_notify+0x749/0xd60 [ 39.963008][ T402] notifier_call_chain+0xcd/0x150 [ 39.963180][ T402] __dev_notify_flags+0xe6/0x250 [ 39.963352][ T402] dev_change_flags+0xec/0x160 [ 39.963603][ T402] do_setlink+0x7d6/0x21e0 [ 39.963777][ T402] __rtnl_newlink+0xaa7/0xd80 [ 39.963953][ T402] rtnl_newlink+0x63/0xa0 [ 39.964210][ T402] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 39.964384][ T402] netlink_rcv_skb+0x130/0x360 [ 39.964559][ T402] netlink_unicast+0x449/0x710 [ 39.964816][ T402] netlink_sendmsg+0x723/0xbe0 [ 39.964989][ T402] ____sys_sendmsg+0x7b2/0xa10 [ 39.965175][ T402] ___sys_sendmsg+0xee/0x170 [ 39.965344][ T402] __sys_sendmsg+0xcd/0x170 [ 39.965595][ T402] do_syscall_64+0xc6/0x1e0 [ 39.965764][ T402] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.965964][ T402] INITIAL READ USE at: [ 39.966152][ T402] __lock_acquire+0x797/0x1570 [ 39.966322][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.966497][ T402] _raw_read_lock_bh+0x44/0x80 [ 39.966667][ T402] inet6_fill_ifla6_attrs+0x516/0x740 [ 39.966953][ T402] inet6_fill_link_af+0x5e/0xe0 [ 39.967125][ T402] rtnl_fill_ifinfo+0x1612/0x29e0 [ 39.967293][ T402] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 39.967580][ T402] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 39.967780][ T402] rtmsg_ifinfo+0x5b/0xa0 [ 39.967948][ T402] register_netdevice+0x1177/0x1690 [ 39.968236][ T402] register_netdev+0x20/0x40 [ 39.968404][ T402] sit_init_net+0x250/0x4f0 [ 39.968573][ T402] ops_init+0x9b/0x560 [ 39.968829][ T402] register_pernet_operations+0x2db/0x710 [ 39.969034][ T402] register_pernet_device+0x2a/0x60 [ 39.969236][ T402] sit_init+0x23/0xe0 [ 39.969487][ T402] do_one_initcall+0x8d/0x1e0 [ 39.969657][ T402] do_initcalls+0x1b2/0x3e0 [ 39.969824][ T402] kernel_init_freeable+0x232/0x310 [ 39.970121][ T402] kernel_init+0x20/0x200 [ 39.970289][ T402] ret_from_fork+0x31/0x70 [ 39.970459][ T402] ret_from_fork_asm+0x1a/0x30 [ 39.970627][ T402] } [ 39.970779][ T402] ... key at: [] __key.37+0x0/0x40 [ 39.970986][ T402] [ 39.970986][ T402] the dependencies between the lock to be acquired [ 39.970988][ T402] and SOFTIRQ-irq-unsafe lock: [ 39.971516][ T402] -> (&p->alloc_lock){+.+.}-{2:2} { [ 39.971656][ T402] HARDIRQ-ON-W at: [ 39.971759][ T402] __lock_acquire+0x797/0x1570 [ 39.971930][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.972182][ T402] _raw_spin_lock+0x30/0x40 [ 39.972352][ T402] set_mems_allowed+0x1d/0x210 [ 39.972520][ T402] kernel_init_freeable+0x72/0x310 [ 39.972692][ T402] kernel_init+0x20/0x200 [ 39.972944][ T402] ret_from_fork+0x31/0x70 [ 39.973116][ T402] ret_from_fork_asm+0x1a/0x30 [ 39.973283][ T402] SOFTIRQ-ON-W at: [ 39.973384][ T402] __lock_acquire+0x797/0x1570 [ 39.973637][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.973804][ T402] _raw_spin_lock+0x30/0x40 [ 39.973980][ T402] set_mems_allowed+0x1d/0x210 [ 39.974230][ T402] kernel_init_freeable+0x72/0x310 [ 39.974398][ T402] kernel_init+0x20/0x200 [ 39.974566][ T402] ret_from_fork+0x31/0x70 [ 39.974822][ T402] ret_from_fork_asm+0x1a/0x30 [ 39.974994][ T402] INITIAL USE at: [ 39.975094][ T402] __lock_acquire+0x797/0x1570 [ 39.975267][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.975436][ T402] _raw_spin_lock+0x30/0x40 [ 39.975604][ T402] set_mems_allowed+0x1d/0x210 [ 39.975775][ T402] kernel_init_freeable+0x72/0x310 [ 39.975944][ T402] kernel_init+0x20/0x200 [ 39.976194][ T402] ret_from_fork+0x31/0x70 [ 39.976368][ T402] ret_from_fork_asm+0x1a/0x30 [ 39.976536][ T402] } [ 39.976607][ T402] ... key at: [] __key.387+0x0/0x40 [ 39.976899][ T402] ... acquired at: [ 39.977001][ T402] check_prev_add+0x194/0xce0 [ 39.977137][ T402] validate_chain+0x71d/0x9b0 [ 39.977271][ T402] __lock_acquire+0xaf0/0x1570 [ 39.977487][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.977627][ T402] _raw_spin_lock+0x30/0x40 [ 39.977768][ T402] __get_task_comm+0x27/0x70 [ 39.977906][ T402] ref_tracker_alloc+0x2ee/0x490 [ 39.978126][ T402] netdev_get_by_index+0x5e/0x80 [ 39.978261][ T402] fib6_nh_init+0x3d8/0x15b0 [ 39.978398][ T402] ip6_route_info_create+0xf18/0x17d0 [ 39.978533][ T402] addrconf_f6i_alloc+0x265/0x560 [ 39.978750][ T402] __ipv6_dev_ac_inc+0x25f/0xb10 [ 39.978890][ T402] addrconf_join_anycast+0x1c0/0x220 [ 39.979025][ T402] dev_forward_change+0x2a6/0x7b0 [ 39.979160][ T402] addrconf_fixup_forwarding+0x23f/0x460 [ 39.979409][ T402] addrconf_sysctl_forward+0x212/0x2b0 [ 39.979544][ T402] proc_sys_call_handler+0x403/0x5e0 [ 39.979683][ T402] vfs_write+0x9e5/0x10a0 [ 39.979819][ T402] ksys_write+0xf5/0x1e0 [ 39.980042][ T402] do_syscall_64+0xc6/0x1e0 [ 39.980181][ T402] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.980349][ T402] [ 39.980418][ T402] [ 39.980418][ T402] stack backtrace: [ 39.980583][ T402] CPU: 1 PID: 402 Comm: sysctl Not tainted 6.9.0-rc1-virtme #1 [ 39.980868][ T402] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 39.981174][ T402] Call Trace: [ 39.981365][ T402] [ 39.981436][ T402] dump_stack_lvl+0x82/0xd0 [ 39.981578][ T402] print_bad_irq_dependency+0x957/0xd40 [ 39.981717][ T402] ? hlock_class+0x4e/0x130 [ 39.981854][ T402] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 39.982184][ T402] ? __pfx_usage_skip+0x10/0x10 [ 39.982321][ T402] ? __bfs+0x246/0x650 [ 39.982423][ T402] ? __pfx_usage_match+0x10/0x10 [ 39.982558][ T402] check_irq_usage+0x596/0x850 [ 39.982787][ T402] ? __pfx_check_irq_usage+0x10/0x10 [ 39.982932][ T402] ? __bfs+0x246/0x650 [ 39.983044][ T402] ? __pfx_hlock_conflict+0x10/0x10 [ 39.983181][ T402] ? check_path.constprop.0+0x24/0x50 [ 39.983319][ T402] ? check_noncircular+0x14c/0x3e0 [ 39.983537][ T402] ? __pfx_check_noncircular+0x10/0x10 [ 39.983675][ T402] ? check_prev_add+0x194/0xce0 [ 39.983811][ T402] check_prev_add+0x194/0xce0 [ 39.983951][ T402] ? validate_chain+0x130/0x9b0 [ 39.984168][ T402] validate_chain+0x71d/0x9b0 [ 39.984304][ T402] ? mark_lock+0x38/0x3e0 [ 39.984407][ T402] ? __pfx_validate_chain+0x10/0x10 [ 39.984543][ T402] ? hlock_class+0x4e/0x130 [ 39.984680][ T402] ? mark_lock+0x38/0x3e0 [ 39.984864][ T402] __lock_acquire+0xaf0/0x1570 [ 39.985001][ T402] lock_acquire.part.0+0xeb/0x330 [ 39.985134][ T402] ? __get_task_comm+0x27/0x70 [ 39.985272][ T402] ? mark_lock+0x38/0x3e0 [ 39.985462][ T402] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 39.985600][ T402] ? trace_lock_acquire+0x135/0x1c0 [ 39.985738][ T402] ? __get_task_comm+0x27/0x70 [ 39.985871][ T402] ? lock_acquire+0x32/0xc0 [ 39.986005][ T402] ? __get_task_comm+0x27/0x70 [ 39.986223][ T402] _raw_spin_lock+0x30/0x40 [ 39.986363][ T402] ? __get_task_comm+0x27/0x70 [ 39.986496][ T402] __get_task_comm+0x27/0x70 [ 39.986638][ T402] ref_tracker_alloc+0x2ee/0x490 [ 39.986856][ T402] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 39.986989][ T402] ? dev_get_by_index+0x177/0x270 [ 39.987122][ T402] ? netdev_get_by_index+0x5e/0x80 [ 39.987255][ T402] ? fib6_nh_init+0x3d8/0x15b0 [ 39.987471][ T402] ? ip6_route_info_create+0xf18/0x17d0 [ 39.987608][ T402] ? addrconf_f6i_alloc+0x265/0x560 [ 39.987742][ T402] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 39.987882][ T402] ? addrconf_join_anycast+0x1c0/0x220 [ 39.988099][ T402] ? dev_forward_change+0x2a6/0x7b0 [ 39.988233][ T402] ? addrconf_fixup_forwarding+0x23f/0x460 [ 39.988398][ T402] ? addrconf_sysctl_forward+0x212/0x2b0 [ 39.988536][ T402] ? proc_sys_call_handler+0x403/0x5e0 [ 39.988753][ T402] ? vfs_write+0x9e5/0x10a0 [ 39.988887][ T402] ? ksys_write+0xf5/0x1e0 [ 39.989025][ T402] ? do_syscall_64+0xc6/0x1e0 [ 39.989160][ T402] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.989414][ T402] ? dev_get_by_index+0x177/0x270 [ 39.989553][ T402] netdev_get_by_index+0x5e/0x80 [ 39.989686][ T402] fib6_nh_init+0x3d8/0x15b0 [ 39.989820][ T402] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 39.990069][ T402] ? __pfx_fib6_nh_init+0x10/0x10 [ 39.990202][ T402] ? kasan_save_track+0x14/0x30 [ 39.990342][ T402] ? __kasan_kmalloc+0x7f/0x90 [ 39.990479][ T402] ? __kmalloc+0x1d7/0x3c0 [ 39.990615][ T402] ? fib6_get_table+0x116/0x290 [ 39.990830][ T402] ip6_route_info_create+0xf18/0x17d0 [ 39.990964][ T402] ? __lock_release+0x103/0x460 [ 39.991099][ T402] ? __pfx_ip6_route_info_create+0x10/0x10 [ 39.991276][ T402] ? addrconf_f6i_alloc+0x12d/0x560 [ 39.991498][ T402] addrconf_f6i_alloc+0x265/0x560 [ 39.991633][ T402] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 39.991778][ T402] ? do_raw_write_lock+0x122/0x3b0 [ 39.991913][ T402] ? __pfx_do_raw_write_lock+0x10/0x10 [ 39.992131][ T402] ? lock_acquire+0x32/0xc0 [ 39.992267][ T402] __ipv6_dev_ac_inc+0x25f/0xb10 [ 39.992403][ T402] addrconf_join_anycast+0x1c0/0x220 [ 39.992540][ T402] ? mark_lock+0x38/0x3e0 [ 39.992804][ T402] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 39.992976][ T402] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 39.993143][ T402] dev_forward_change+0x2a6/0x7b0 [ 39.993278][ T402] ? __pfx_dev_forward_change+0x10/0x10 [ 39.993499][ T402] addrconf_fixup_forwarding+0x23f/0x460 [ 39.993639][ T402] addrconf_sysctl_forward+0x212/0x2b0 [ 39.993773][ T402] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 39.993941][ T402] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 39.994192][ T402] ? trace_kmalloc+0x2a/0xe0 [ 39.994330][ T402] ? __kmalloc_node+0x220/0x400 [ 39.994473][ T402] ? proc_sys_call_handler+0x30b/0x5e0 [ 39.994608][ T402] proc_sys_call_handler+0x403/0x5e0 [ 39.994825][ T402] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 39.994994][ T402] ? __lock_acquire+0xaf0/0x1570 [ 39.995130][ T402] vfs_write+0x9e5/0x10a0 [ 39.995232][ T402] ? do_user_addr_fault+0x449/0xbe0 [ 39.995459][ T402] ? __pfx_vfs_write+0x10/0x10 [ 39.995604][ T402] ? find_held_lock+0x2c/0x110 [ 39.995740][ T402] ? __pfx___lock_release+0x10/0x10 [ 39.995874][ T402] ? __fget_light+0x53/0x1e0 [ 39.996011][ T402] ksys_write+0xf5/0x1e0 [ 39.996194][ T402] ? __pfx_ksys_write+0x10/0x10 [ 39.996328][ T402] ? do_user_addr_fault+0x4bd/0xbe0 [ 39.996466][ T402] do_syscall_64+0xc6/0x1e0 [ 39.996600][ T402] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.996850][ T402] RIP: 0033:0x7f47c217f957 [ 39.996995][ T402] 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 [ 39.997562][ T402] RSP: 002b:00007fffcd211f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.997767][ T402] RAX: ffffffffffffffda RBX: 0000562fda3e7360 RCX: 00007f47c217f957 [ 39.997976][ T402] RDX: 0000000000000002 RSI: 0000562fda3e73a0 RDI: 0000000000000005 [ 39.998257][ T402] RBP: 0000562fda3e94d0 R08: 0000000000000003 R09: 0000000000000077 [ 39.998461][ T402] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 [ 39.998668][ T402] R13: 0000000000000002 R14: 0000000000000002 R15: 00007f47c22369c0 [ 39.998953][ T402]