[ 25.326371][ T246] ip (246) used greatest stack depth: 23920 bytes left [ 29.863332][ T296] 8021q: 802.1Q VLAN Support v1.8 [ 31.042571][ T307] gre: GRE over IPv4 demultiplexor driver [ 31.065031][ T307] ip_gre: GRE over IPv4 tunneling driver [ 38.046812][ T373] GACT probability NOT on [ 38.066837][ T371] tc (371) used greatest stack depth: 23360 bytes left [ 39.733181][ T389] [ 39.733320][ T389] ===================================================== [ 39.733499][ T389] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 39.733707][ T389] 6.9.0-rc1-virtme #1 Not tainted [ 39.733844][ T389] ----------------------------------------------------- [ 39.734024][ T389] sysctl/389 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 39.734232][ T389] ffff888008578968 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 39.734487][ T389] [ 39.734487][ T389] and this task is already holding: [ 39.734709][ T389] ffff8880065c6d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 39.734959][ T389] which would create a new lock dependency: [ 39.735126][ T389] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 39.735343][ T389] [ 39.735343][ T389] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 39.735574][ T389] (&ndev->lock){++--}-{2:2} [ 39.735577][ T389] [ 39.735577][ T389] ... which became SOFTIRQ-irq-safe at: [ 39.735925][ T389] __lock_acquire+0x797/0x1570 [ 39.736069][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.736212][ T389] _raw_write_lock+0x30/0x40 [ 39.736367][ T389] addrconf_rs_timer+0xa9/0x730 [ 39.736519][ T389] call_timer_fn+0x13b/0x230 [ 39.736671][ T389] __run_timers+0x545/0x810 [ 39.736821][ T389] timer_expire_remote+0x9b/0xe0 [ 39.736970][ T389] tmigr_handle_remote_cpu+0x270/0x430 [ 39.737137][ T389] tmigr_handle_remote_up+0x19f/0x2e0 [ 39.737287][ T389] tmigr_handle_remote+0x21d/0x3a0 [ 39.737492][ T389] __do_softirq+0x1f8/0x5df [ 39.737643][ T389] irq_exit_rcu+0x97/0xc0 [ 39.737791][ T389] sysvec_apic_timer_interrupt+0x75/0x80 [ 39.737942][ T389] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 39.738134][ T389] default_idle+0xf/0x20 [ 39.738248][ T389] default_idle_call+0x6d/0xb0 [ 39.738404][ T389] cpuidle_idle_call+0x1f4/0x280 [ 39.738560][ T389] do_idle+0xf9/0x160 [ 39.738672][ T389] cpu_startup_entry+0x54/0x60 [ 39.738822][ T389] rest_init+0x14f/0x260 [ 39.738940][ T389] start_kernel+0x318/0x3d0 [ 39.739090][ T389] x86_64_start_reservations+0x18/0x30 [ 39.739243][ T389] x86_64_start_kernel+0xba/0x110 [ 39.739398][ T389] common_startup_64+0x12c/0x138 [ 39.739556][ T389] [ 39.739556][ T389] to a SOFTIRQ-irq-unsafe lock: [ 39.739738][ T389] (&p->alloc_lock){+.+.}-{2:2} [ 39.739743][ T389] [ 39.739743][ T389] ... which became SOFTIRQ-irq-unsafe at: [ 39.740112][ T389] ... [ 39.740113][ T389] __lock_acquire+0x797/0x1570 [ 39.740347][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.740496][ T389] _raw_spin_lock+0x30/0x40 [ 39.740645][ T389] set_mems_allowed+0x1d/0x210 [ 39.740799][ T389] kernel_init_freeable+0x72/0x310 [ 39.740946][ T389] kernel_init+0x20/0x200 [ 39.741097][ T389] ret_from_fork+0x31/0x70 [ 39.741247][ T389] ret_from_fork_asm+0x1a/0x30 [ 39.741392][ T389] [ 39.741392][ T389] other info that might help us debug this: [ 39.741392][ T389] [ 39.741679][ T389] Possible interrupt unsafe locking scenario: [ 39.741679][ T389] [ 39.741897][ T389] CPU0 CPU1 [ 39.742046][ T389] ---- ---- [ 39.742191][ T389] lock(&p->alloc_lock); [ 39.742314][ T389] local_irq_disable(); [ 39.742498][ T389] lock(&ndev->lock); [ 39.742682][ T389] lock(&p->alloc_lock); [ 39.742869][ T389] [ 39.742980][ T389] lock(&ndev->lock); [ 39.743097][ T389] [ 39.743097][ T389] *** DEADLOCK *** [ 39.743097][ T389] [ 39.743311][ T389] 3 locks held by sysctl/389: [ 39.743458][ T389] #0: ffff888004f943f0 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0xf5/0x1e0 [ 39.743726][ T389] #1: ffffffff881969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_fixup_forwarding+0x20/0x460 [ 39.744029][ T389] #2: ffff8880065c6d80 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 39.744297][ T389] [ 39.744297][ T389] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 39.744590][ T389] -> (&ndev->lock){++--}-{2:2} { [ 39.744745][ T389] HARDIRQ-ON-W at: [ 39.744861][ T389] __lock_acquire+0x797/0x1570 [ 39.745051][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.745239][ T389] _raw_write_lock_bh+0x38/0x50 [ 39.745429][ T389] addrconf_permanent_addr+0x6e/0x670 [ 39.745616][ T389] addrconf_notify+0x749/0xd60 [ 39.745802][ T389] notifier_call_chain+0xcd/0x150 [ 39.745991][ T389] __dev_notify_flags+0xe6/0x250 [ 39.746186][ T389] dev_change_flags+0xec/0x160 [ 39.746382][ T389] do_setlink+0x7d6/0x21e0 [ 39.746589][ T389] __rtnl_newlink+0xaa7/0xd80 [ 39.746786][ T389] rtnl_newlink+0x63/0xa0 [ 39.746978][ T389] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 39.747168][ T389] netlink_rcv_skb+0x130/0x360 [ 39.747374][ T389] netlink_unicast+0x449/0x710 [ 39.747567][ T389] netlink_sendmsg+0x723/0xbe0 [ 39.747754][ T389] ____sys_sendmsg+0x7b2/0xa10 [ 39.747950][ T389] ___sys_sendmsg+0xee/0x170 [ 39.748140][ T389] __sys_sendmsg+0xcd/0x170 [ 39.748341][ T389] do_syscall_64+0xc6/0x1e0 [ 39.748532][ T389] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.748758][ T389] HARDIRQ-ON-R at: [ 39.748874][ T389] __lock_acquire+0x797/0x1570 [ 39.749065][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.749260][ T389] _raw_read_lock_bh+0x44/0x80 [ 39.749452][ T389] inet6_fill_ifla6_attrs+0x516/0x740 [ 39.749645][ T389] inet6_fill_link_af+0x5e/0xe0 [ 39.749837][ T389] rtnl_fill_ifinfo+0x1612/0x29e0 [ 39.750026][ T389] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 39.750217][ T389] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 39.750454][ T389] rtmsg_ifinfo+0x5b/0xa0 [ 39.750642][ T389] register_netdevice+0x1177/0x1690 [ 39.750833][ T389] register_netdev+0x20/0x40 [ 39.751023][ T389] sit_init_net+0x250/0x4f0 [ 39.751214][ T389] ops_init+0x9b/0x560 [ 39.751367][ T389] register_pernet_operations+0x2db/0x710 [ 39.751602][ T389] register_pernet_device+0x2a/0x60 [ 39.751792][ T389] sit_init+0x23/0xe0 [ 39.751945][ T389] do_one_initcall+0x8d/0x1e0 [ 39.752142][ T389] do_initcalls+0x1b2/0x3e0 [ 39.752335][ T389] kernel_init_freeable+0x232/0x310 [ 39.752528][ T389] kernel_init+0x20/0x200 [ 39.752723][ T389] ret_from_fork+0x31/0x70 [ 39.752914][ T389] ret_from_fork_asm+0x1a/0x30 [ 39.753103][ T389] IN-SOFTIRQ-W at: [ 39.753217][ T389] __lock_acquire+0x797/0x1570 [ 39.753411][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.753599][ T389] _raw_write_lock+0x30/0x40 [ 39.753796][ T389] addrconf_rs_timer+0xa9/0x730 [ 39.753996][ T389] call_timer_fn+0x13b/0x230 [ 39.754190][ T389] __run_timers+0x545/0x810 [ 39.754381][ T389] timer_expire_remote+0x9b/0xe0 [ 39.754571][ T389] tmigr_handle_remote_cpu+0x270/0x430 [ 39.754773][ T389] tmigr_handle_remote_up+0x19f/0x2e0 [ 39.754963][ T389] tmigr_handle_remote+0x21d/0x3a0 [ 39.755167][ T389] __do_softirq+0x1f8/0x5df [ 39.755363][ T389] irq_exit_rcu+0x97/0xc0 [ 39.755556][ T389] sysvec_apic_timer_interrupt+0x75/0x80 [ 39.755783][ T389] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 39.756008][ T389] default_idle+0xf/0x20 [ 39.756201][ T389] default_idle_call+0x6d/0xb0 [ 39.756394][ T389] cpuidle_idle_call+0x1f4/0x280 [ 39.756589][ T389] do_idle+0xf9/0x160 [ 39.756828][ T389] cpu_startup_entry+0x54/0x60 [ 39.757026][ T389] rest_init+0x14f/0x260 [ 39.757216][ T389] start_kernel+0x318/0x3d0 [ 39.757418][ T389] x86_64_start_reservations+0x18/0x30 [ 39.757689][ T389] x86_64_start_kernel+0xba/0x110 [ 39.757889][ T389] common_startup_64+0x12c/0x138 [ 39.758078][ T389] IN-SOFTIRQ-R at: [ 39.758190][ T389] __lock_acquire+0x797/0x1570 [ 39.758465][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.758656][ T389] _raw_read_lock_bh+0x44/0x80 [ 39.758844][ T389] ipv6_get_lladdr+0xa9/0x3e0 [ 39.759212][ T389] addrconf_rs_timer+0x24a/0x730 [ 39.759404][ T389] call_timer_fn+0x13b/0x230 [ 39.759594][ T389] __run_timers+0x545/0x810 [ 39.759783][ T389] timer_expire_remote+0x9b/0xe0 [ 39.759973][ T389] tmigr_handle_remote_cpu+0x270/0x430 [ 39.760159][ T389] tmigr_handle_remote_up+0x19f/0x2e0 [ 39.760355][ T389] tmigr_handle_remote+0x21d/0x3a0 [ 39.760550][ T389] __do_softirq+0x1f8/0x5df [ 39.760738][ T389] irq_exit_rcu+0x97/0xc0 [ 39.760928][ T389] sysvec_apic_timer_interrupt+0x75/0x80 [ 39.761257][ T389] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 39.761463][ T389] default_idle+0xf/0x20 [ 39.761645][ T389] default_idle_call+0x6d/0xb0 [ 39.761902][ T389] cpuidle_idle_call+0x1f4/0x280 [ 39.762081][ T389] do_idle+0xf9/0x160 [ 39.762217][ T389] cpu_startup_entry+0x54/0x60 [ 39.762389][ T389] rest_init+0x14f/0x260 [ 39.762643][ T389] start_kernel+0x318/0x3d0 [ 39.762814][ T389] x86_64_start_reservations+0x18/0x30 [ 39.762988][ T389] x86_64_start_kernel+0xba/0x110 [ 39.763241][ T389] common_startup_64+0x12c/0x138 [ 39.763412][ T389] INITIAL USE at: [ 39.763517][ T389] __lock_acquire+0x797/0x1570 [ 39.763691][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.763945][ T389] _raw_write_lock_bh+0x38/0x50 [ 39.764117][ T389] addrconf_permanent_addr+0x6e/0x670 [ 39.764292][ T389] addrconf_notify+0x749/0xd60 [ 39.764543][ T389] notifier_call_chain+0xcd/0x150 [ 39.764716][ T389] __dev_notify_flags+0xe6/0x250 [ 39.764887][ T389] dev_change_flags+0xec/0x160 [ 39.765058][ T389] do_setlink+0x7d6/0x21e0 [ 39.765312][ T389] __rtnl_newlink+0xaa7/0xd80 [ 39.765491][ T389] rtnl_newlink+0x63/0xa0 [ 39.765662][ T389] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 39.765914][ T389] netlink_rcv_skb+0x130/0x360 [ 39.766086][ T389] netlink_unicast+0x449/0x710 [ 39.766259][ T389] netlink_sendmsg+0x723/0xbe0 [ 39.766432][ T389] ____sys_sendmsg+0x7b2/0xa10 [ 39.766688][ T389] ___sys_sendmsg+0xee/0x170 [ 39.766867][ T389] __sys_sendmsg+0xcd/0x170 [ 39.767039][ T389] do_syscall_64+0xc6/0x1e0 [ 39.767301][ T389] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.767551][ T389] INITIAL READ USE at: [ 39.767684][ T389] __lock_acquire+0x797/0x1570 [ 39.767906][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.768178][ T389] _raw_read_lock_bh+0x44/0x80 [ 39.768352][ T389] inet6_fill_ifla6_attrs+0x516/0x740 [ 39.768562][ T389] inet6_fill_link_af+0x5e/0xe0 [ 39.768736][ T389] rtnl_fill_ifinfo+0x1612/0x29e0 [ 39.768920][ T389] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 39.769127][ T389] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 39.769339][ T389] rtmsg_ifinfo+0x5b/0xa0 [ 39.769511][ T389] register_netdevice+0x1177/0x1690 [ 39.769724][ T389] register_netdev+0x20/0x40 [ 39.770066][ T389] sit_init_net+0x250/0x4f0 [ 39.770240][ T389] ops_init+0x9b/0x560 [ 39.770412][ T389] register_pernet_operations+0x2db/0x710 [ 39.770740][ T389] register_pernet_device+0x2a/0x60 [ 39.770946][ T389] sit_init+0x23/0xe0 [ 39.771117][ T389] do_one_initcall+0x8d/0x1e0 [ 39.771368][ T389] do_initcalls+0x1b2/0x3e0 [ 39.771540][ T389] kernel_init_freeable+0x232/0x310 [ 39.771752][ T389] kernel_init+0x20/0x200 [ 39.771929][ T389] ret_from_fork+0x31/0x70 [ 39.772195][ T389] ret_from_fork_asm+0x1a/0x30 [ 39.772366][ T389] } [ 39.772440][ T389] ... key at: [] __key.37+0x0/0x40 [ 39.772647][ T389] [ 39.772647][ T389] the dependencies between the lock to be acquired [ 39.772649][ T389] and SOFTIRQ-irq-unsafe lock: [ 39.773019][ T389] -> (&p->alloc_lock){+.+.}-{2:2} { [ 39.773167][ T389] HARDIRQ-ON-W at: [ 39.773272][ T389] __lock_acquire+0x797/0x1570 [ 39.773447][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.773626][ T389] _raw_spin_lock+0x30/0x40 [ 39.773799][ T389] set_mems_allowed+0x1d/0x210 [ 39.774052][ T389] kernel_init_freeable+0x72/0x310 [ 39.774233][ T389] kernel_init+0x20/0x200 [ 39.774405][ T389] ret_from_fork+0x31/0x70 [ 39.774656][ T389] ret_from_fork_asm+0x1a/0x30 [ 39.774826][ T389] SOFTIRQ-ON-W at: [ 39.774929][ T389] __lock_acquire+0x797/0x1570 [ 39.775101][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.775365][ T389] _raw_spin_lock+0x30/0x40 [ 39.775542][ T389] set_mems_allowed+0x1d/0x210 [ 39.775714][ T389] kernel_init_freeable+0x72/0x310 [ 39.775972][ T389] kernel_init+0x20/0x200 [ 39.776157][ T389] ret_from_fork+0x31/0x70 [ 39.776330][ T389] ret_from_fork_asm+0x1a/0x30 [ 39.776524][ T389] INITIAL USE at: [ 39.776719][ T389] __lock_acquire+0x797/0x1570 [ 39.776903][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.777084][ T389] _raw_spin_lock+0x30/0x40 [ 39.777369][ T389] set_mems_allowed+0x1d/0x210 [ 39.777551][ T389] kernel_init_freeable+0x72/0x310 [ 39.777729][ T389] kernel_init+0x20/0x200 [ 39.777902][ T389] ret_from_fork+0x31/0x70 [ 39.778185][ T389] ret_from_fork_asm+0x1a/0x30 [ 39.778367][ T389] } [ 39.778440][ T389] ... key at: [] __key.387+0x0/0x40 [ 39.778648][ T389] ... acquired at: [ 39.778751][ T389] check_prev_add+0x194/0xce0 [ 39.778894][ T389] validate_chain+0x71d/0x9b0 [ 39.779032][ T389] __lock_acquire+0xaf0/0x1570 [ 39.779169][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.779307][ T389] _raw_spin_lock+0x30/0x40 [ 39.779459][ T389] __get_task_comm+0x27/0x70 [ 39.779598][ T389] ref_tracker_alloc+0x2ee/0x490 [ 39.779737][ T389] netdev_get_by_index+0x5e/0x80 [ 39.779965][ T389] fib6_nh_init+0x3d8/0x15b0 [ 39.780105][ T389] ip6_route_info_create+0xf18/0x17d0 [ 39.780243][ T389] addrconf_f6i_alloc+0x265/0x560 [ 39.780380][ T389] __ipv6_dev_ac_inc+0x25f/0xb10 [ 39.780527][ T389] addrconf_join_anycast+0x1c0/0x220 [ 39.780832][ T389] dev_forward_change+0x2a6/0x7b0 [ 39.780971][ T389] addrconf_fixup_forwarding+0x23f/0x460 [ 39.781141][ T389] addrconf_sysctl_forward+0x212/0x2b0 [ 39.781280][ T389] proc_sys_call_handler+0x403/0x5e0 [ 39.781498][ T389] vfs_write+0x9e5/0x10a0 [ 39.781634][ T389] ksys_write+0xf5/0x1e0 [ 39.781777][ T389] do_syscall_64+0xc6/0x1e0 [ 39.781914][ T389] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.782185][ T389] [ 39.782257][ T389] [ 39.782257][ T389] stack backtrace: [ 39.782426][ T389] CPU: 1 PID: 389 Comm: sysctl Not tainted 6.9.0-rc1-virtme #1 [ 39.782631][ T389] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 39.782930][ T389] Call Trace: [ 39.783034][ T389] [ 39.783106][ T389] dump_stack_lvl+0x82/0xd0 [ 39.783252][ T389] print_bad_irq_dependency+0x957/0xd40 [ 39.783390][ T389] ? hlock_class+0x4e/0x130 [ 39.783528][ T389] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 39.783697][ T389] ? __pfx_usage_skip+0x10/0x10 [ 39.783922][ T389] ? __bfs+0x246/0x650 [ 39.784027][ T389] ? __pfx_usage_match+0x10/0x10 [ 39.784165][ T389] check_irq_usage+0x596/0x850 [ 39.784311][ T389] ? __pfx_check_irq_usage+0x10/0x10 [ 39.784455][ T389] ? __bfs+0x246/0x650 [ 39.784649][ T389] ? __pfx_hlock_conflict+0x10/0x10 [ 39.784788][ T389] ? check_path.constprop.0+0x24/0x50 [ 39.784939][ T389] ? check_noncircular+0x14c/0x3e0 [ 39.785088][ T389] ? __pfx_check_noncircular+0x10/0x10 [ 39.785311][ T389] ? check_prev_add+0x194/0xce0 [ 39.785447][ T389] check_prev_add+0x194/0xce0 [ 39.785582][ T389] ? validate_chain+0x130/0x9b0 [ 39.785723][ T389] validate_chain+0x71d/0x9b0 [ 39.785862][ T389] ? mark_lock+0x38/0x3e0 [ 39.786047][ T389] ? __pfx_validate_chain+0x10/0x10 [ 39.786185][ T389] ? hlock_class+0x4e/0x130 [ 39.786322][ T389] ? mark_lock+0x38/0x3e0 [ 39.786437][ T389] __lock_acquire+0xaf0/0x1570 [ 39.786659][ T389] lock_acquire.part.0+0xeb/0x330 [ 39.786797][ T389] ? __get_task_comm+0x27/0x70 [ 39.786935][ T389] ? mark_lock+0x38/0x3e0 [ 39.787045][ T389] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 39.787188][ T389] ? trace_lock_acquire+0x135/0x1c0 [ 39.787424][ T389] ? __get_task_comm+0x27/0x70 [ 39.787559][ T389] ? lock_acquire+0x32/0xc0 [ 39.787703][ T389] ? __get_task_comm+0x27/0x70 [ 39.787839][ T389] _raw_spin_lock+0x30/0x40 [ 39.788072][ T389] ? __get_task_comm+0x27/0x70 [ 39.788208][ T389] __get_task_comm+0x27/0x70 [ 39.788356][ T389] ref_tracker_alloc+0x2ee/0x490 [ 39.788497][ T389] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 39.788650][ T389] ? dev_get_by_index+0x177/0x270 [ 39.788794][ T389] ? netdev_get_by_index+0x5e/0x80 [ 39.788928][ T389] ? fib6_nh_init+0x3d8/0x15b0 [ 39.789064][ T389] ? ip6_route_info_create+0xf18/0x17d0 [ 39.789204][ T389] ? addrconf_f6i_alloc+0x265/0x560 [ 39.789377][ T389] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 39.789538][ T389] ? addrconf_join_anycast+0x1c0/0x220 [ 39.789684][ T389] ? dev_forward_change+0x2a6/0x7b0 [ 39.789819][ T389] ? addrconf_fixup_forwarding+0x23f/0x460 [ 39.790075][ T389] ? addrconf_sysctl_forward+0x212/0x2b0 [ 39.790219][ T389] ? proc_sys_call_handler+0x403/0x5e0 [ 39.790360][ T389] ? vfs_write+0x9e5/0x10a0 [ 39.790497][ T389] ? ksys_write+0xf5/0x1e0 [ 39.790717][ T389] ? do_syscall_64+0xc6/0x1e0 [ 39.790857][ T389] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.791033][ T389] ? dev_get_by_index+0x177/0x270 [ 39.791173][ T389] netdev_get_by_index+0x5e/0x80 [ 39.791469][ T389] fib6_nh_init+0x3d8/0x15b0 [ 39.791605][ T389] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 39.791774][ T389] ? __pfx_fib6_nh_init+0x10/0x10 [ 39.791910][ T389] ? kasan_save_track+0x14/0x30 [ 39.792140][ T389] ? __kasan_kmalloc+0x7f/0x90 [ 39.792283][ T389] ? __kmalloc+0x1d7/0x3c0 [ 39.792420][ T389] ? fib6_get_table+0x116/0x290 [ 39.792556][ T389] ip6_route_info_create+0xf18/0x17d0 [ 39.792691][ T389] ? __lock_release+0x103/0x460 [ 39.792827][ T389] ? __pfx_ip6_route_info_create+0x10/0x10 [ 39.792997][ T389] ? addrconf_f6i_alloc+0x12d/0x560 [ 39.793136][ T389] addrconf_f6i_alloc+0x265/0x560 [ 39.793280][ T389] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 39.793424][ T389] ? do_raw_write_lock+0x122/0x3b0 [ 39.793562][ T389] ? __pfx_do_raw_write_lock+0x10/0x10 [ 39.793697][ T389] ? lock_acquire+0x32/0xc0 [ 39.793913][ T389] __ipv6_dev_ac_inc+0x25f/0xb10 [ 39.794055][ T389] addrconf_join_anycast+0x1c0/0x220 [ 39.794192][ T389] ? mark_lock+0x38/0x3e0 [ 39.794296][ T389] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 39.794465][ T389] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 39.794725][ T389] dev_forward_change+0x2a6/0x7b0 [ 39.794862][ T389] ? __pfx_dev_forward_change+0x10/0x10 [ 39.795007][ T389] addrconf_fixup_forwarding+0x23f/0x460 [ 39.795145][ T389] addrconf_sysctl_forward+0x212/0x2b0 [ 39.795373][ T389] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 39.795543][ T389] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 39.795746][ T389] ? trace_kmalloc+0x2a/0xe0 [ 39.795970][ T389] ? __kmalloc_node+0x220/0x400 [ 39.796109][ T389] ? proc_sys_call_handler+0x30b/0x5e0 [ 39.796249][ T389] proc_sys_call_handler+0x403/0x5e0 [ 39.796385][ T389] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 39.796640][ T389] ? __lock_acquire+0xaf0/0x1570 [ 39.796794][ T389] vfs_write+0x9e5/0x10a0 [ 39.796915][ T389] ? do_user_addr_fault+0x449/0xbe0 [ 39.797066][ T389] ? __pfx_vfs_write+0x10/0x10 [ 39.797217][ T389] ? find_held_lock+0x2c/0x110 [ 39.797465][ T389] ? __pfx___lock_release+0x10/0x10 [ 39.797618][ T389] ? __fget_light+0x53/0x1e0 [ 39.797768][ T389] ksys_write+0xf5/0x1e0 [ 39.797881][ T389] ? __pfx_ksys_write+0x10/0x10 [ 39.798119][ T389] ? do_user_addr_fault+0x4bd/0xbe0 [ 39.798271][ T389] do_syscall_64+0xc6/0x1e0 [ 39.798420][ T389] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.798610][ T389] RIP: 0033:0x7f471e9dc957 [ 39.798781][ T389] 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 [ 39.799316][ T389] RSP: 002b:00007ffe4f7154a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.799549][ T389] RAX: ffffffffffffffda RBX: 0000561944f88360 RCX: 00007f471e9dc957 [ 39.799780][ T389] RDX: 0000000000000002 RSI: 0000561944f883a0 RDI: 0000000000000005 [ 39.799983][ T389] RBP: 0000561944f8a4d0 R08: 0000000000000003 R09: 0000000000000077 [ 39.800275][ T389] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 [ 39.800478][ T389] R13: 0000000000000002 R14: 0000000000000002 R15: 00007f471ea939c0 [ 39.800688][ T389]