[ 29.420411][ T297] 8021q: 802.1Q VLAN Support v1.8 [ 30.452029][ T308] gre: GRE over IPv4 demultiplexor driver [ 30.473684][ T308] ip_gre: GRE over IPv4 tunneling driver [ 30.773782][ T314] ip (314) used greatest stack depth: 23464 bytes left [ 37.323789][ T374] GACT probability NOT on [ 39.091266][ T390] [ 39.091384][ T390] ===================================================== [ 39.091564][ T390] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 39.091780][ T390] 6.9.0-rc1-virtme #1 Not tainted [ 39.091923][ T390] ----------------------------------------------------- [ 39.092093][ T390] sysctl/390 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 39.092294][ T390] ffff888005792c28 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 39.092546][ T390] [ 39.092546][ T390] and this task is already holding: [ 39.092746][ T390] ffff888005c05580 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 39.093000][ T390] which would create a new lock dependency: [ 39.093171][ T390] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 39.093385][ T390] [ 39.093385][ T390] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 39.093618][ T390] (&ndev->lock){++--}-{2:2} [ 39.093621][ T390] [ 39.093621][ T390] ... which became SOFTIRQ-irq-safe at: [ 39.093955][ T390] __lock_acquire+0x797/0x1570 [ 39.094105][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.094251][ T390] _raw_write_lock+0x30/0x40 [ 39.094398][ T390] addrconf_rs_timer+0xa9/0x730 [ 39.094537][ T390] call_timer_fn+0x13b/0x230 [ 39.094679][ T390] __run_timers+0x545/0x810 [ 39.094815][ T390] run_timer_softirq+0xe8/0x1b0 [ 39.094953][ T390] __do_softirq+0x1f8/0x5df [ 39.095088][ T390] irq_exit_rcu+0x97/0xc0 [ 39.095226][ T390] sysvec_apic_timer_interrupt+0x75/0x80 [ 39.095367][ T390] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 39.095540][ T390] default_idle+0xf/0x20 [ 39.095644][ T390] default_idle_call+0x6d/0xb0 [ 39.095779][ T390] cpuidle_idle_call+0x1f4/0x280 [ 39.095916][ T390] do_idle+0xf9/0x160 [ 39.096018][ T390] cpu_startup_entry+0x54/0x60 [ 39.096154][ T390] rest_init+0x14f/0x260 [ 39.096258][ T390] start_kernel+0x318/0x3d0 [ 39.096400][ T390] x86_64_start_reservations+0x18/0x30 [ 39.096543][ T390] x86_64_start_kernel+0xba/0x110 [ 39.096681][ T390] common_startup_64+0x12c/0x138 [ 39.096819][ T390] [ 39.096819][ T390] to a SOFTIRQ-irq-unsafe lock: [ 39.096988][ T390] (&p->alloc_lock){+.+.}-{2:2} [ 39.096992][ T390] [ 39.096992][ T390] ... which became SOFTIRQ-irq-unsafe at: [ 39.097322][ T390] ... [ 39.097323][ T390] __lock_acquire+0x797/0x1570 [ 39.097532][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.097665][ T390] _raw_spin_lock+0x30/0x40 [ 39.097799][ T390] set_mems_allowed+0x1d/0x210 [ 39.097938][ T390] kernel_init_freeable+0x72/0x310 [ 39.098073][ T390] kernel_init+0x20/0x200 [ 39.098208][ T390] ret_from_fork+0x31/0x70 [ 39.098342][ T390] ret_from_fork_asm+0x1a/0x30 [ 39.098478][ T390] [ 39.098478][ T390] other info that might help us debug this: [ 39.098478][ T390] [ 39.098747][ T390] Possible interrupt unsafe locking scenario: [ 39.098747][ T390] [ 39.098949][ T390] CPU0 CPU1 [ 39.099088][ T390] ---- ---- [ 39.099222][ T390] lock(&p->alloc_lock); [ 39.099336][ T390] local_irq_disable(); [ 39.099502][ T390] lock(&ndev->lock); [ 39.099680][ T390] lock(&p->alloc_lock); [ 39.099850][ T390] [ 39.099954][ T390] lock(&ndev->lock); [ 39.100060][ T390] [ 39.100060][ T390] *** DEADLOCK *** [ 39.100060][ T390] [ 39.100259][ T390] 3 locks held by sysctl/390: [ 39.100403][ T390] #0: ffff88800618c3f0 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0xf5/0x1e0 [ 39.100650][ T390] #1: ffffffff967969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_fixup_forwarding+0x20/0x460 [ 39.100935][ T390] #2: ffff888005c05580 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 39.101180][ T390] [ 39.101180][ T390] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 39.101451][ T390] -> (&ndev->lock){++--}-{2:2} { [ 39.101597][ T390] HARDIRQ-ON-W at: [ 39.101704][ T390] __lock_acquire+0x797/0x1570 [ 39.101888][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.102061][ T390] _raw_write_lock_bh+0x38/0x50 [ 39.102234][ T390] addrconf_permanent_addr+0x6e/0x670 [ 39.102407][ T390] addrconf_notify+0x749/0xd60 [ 39.102580][ T390] notifier_call_chain+0xcd/0x150 [ 39.102759][ T390] __dev_notify_flags+0xe6/0x250 [ 39.102939][ T390] dev_change_flags+0xec/0x160 [ 39.103112][ T390] do_setlink+0x7d6/0x21e0 [ 39.103287][ T390] __rtnl_newlink+0xaa7/0xd80 [ 39.103465][ T390] rtnl_newlink+0x63/0xa0 [ 39.103635][ T390] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 39.103810][ T390] netlink_rcv_skb+0x130/0x360 [ 39.103986][ T390] netlink_unicast+0x449/0x710 [ 39.104172][ T390] netlink_sendmsg+0x723/0xbe0 [ 39.104354][ T390] ____sys_sendmsg+0x7b2/0xa10 [ 39.104530][ T390] ___sys_sendmsg+0xee/0x170 [ 39.104705][ T390] __sys_sendmsg+0xcd/0x170 [ 39.104877][ T390] do_syscall_64+0xc6/0x1e0 [ 39.105051][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.105261][ T390] HARDIRQ-ON-R at: [ 39.105365][ T390] __lock_acquire+0x797/0x1570 [ 39.105537][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.105712][ T390] _raw_read_lock_bh+0x44/0x80 [ 39.105884][ T390] inet6_fill_ifla6_attrs+0x516/0x740 [ 39.106058][ T390] inet6_fill_link_af+0x5e/0xe0 [ 39.106233][ T390] rtnl_fill_ifinfo+0x1612/0x29e0 [ 39.106409][ T390] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 39.106580][ T390] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 39.106786][ T390] rtmsg_ifinfo+0x5b/0xa0 [ 39.106960][ T390] register_netdevice+0x1177/0x1690 [ 39.107132][ T390] register_netdev+0x20/0x40 [ 39.107306][ T390] sit_init_net+0x250/0x4f0 [ 39.107489][ T390] ops_init+0x9b/0x560 [ 39.107629][ T390] register_pernet_operations+0x2db/0x710 [ 39.107835][ T390] register_pernet_device+0x2a/0x60 [ 39.108007][ T390] sit_init+0x23/0xe0 [ 39.108147][ T390] do_one_initcall+0x8d/0x1e0 [ 39.108321][ T390] do_initcalls+0x1b2/0x3e0 [ 39.108497][ T390] kernel_init_freeable+0x232/0x310 [ 39.108671][ T390] kernel_init+0x20/0x200 [ 39.108843][ T390] ret_from_fork+0x31/0x70 [ 39.109016][ T390] ret_from_fork_asm+0x1a/0x30 [ 39.109190][ T390] IN-SOFTIRQ-W at: [ 39.109294][ T390] __lock_acquire+0x797/0x1570 [ 39.109465][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.109641][ T390] _raw_write_lock+0x30/0x40 [ 39.109814][ T390] addrconf_rs_timer+0xa9/0x730 [ 39.109984][ T390] call_timer_fn+0x13b/0x230 [ 39.110157][ T390] __run_timers+0x545/0x810 [ 39.110332][ T390] run_timer_softirq+0xe8/0x1b0 [ 39.110504][ T390] __do_softirq+0x1f8/0x5df [ 39.110674][ T390] irq_exit_rcu+0x97/0xc0 [ 39.110850][ T390] sysvec_apic_timer_interrupt+0x75/0x80 [ 39.111055][ T390] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 39.111262][ T390] default_idle+0xf/0x20 [ 39.111433][ T390] default_idle_call+0x6d/0xb0 [ 39.111608][ T390] cpuidle_idle_call+0x1f4/0x280 [ 39.111779][ T390] do_idle+0xf9/0x160 [ 39.111921][ T390] cpu_startup_entry+0x54/0x60 [ 39.112095][ T390] rest_init+0x14f/0x260 [ 39.112267][ T390] start_kernel+0x318/0x3d0 [ 39.112441][ T390] x86_64_start_reservations+0x18/0x30 [ 39.112614][ T390] x86_64_start_kernel+0xba/0x110 [ 39.112789][ T390] common_startup_64+0x12c/0x138 [ 39.112965][ T390] IN-SOFTIRQ-R at: [ 39.113068][ T390] __lock_acquire+0x797/0x1570 [ 39.113243][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.113412][ T390] _raw_read_lock_bh+0x44/0x80 [ 39.113582][ T390] ipv6_get_lladdr+0xa9/0x3e0 [ 39.113751][ T390] addrconf_rs_timer+0x24a/0x730 [ 39.113927][ T390] call_timer_fn+0x13b/0x230 [ 39.114101][ T390] __run_timers+0x545/0x810 [ 39.114279][ T390] run_timer_softirq+0xe8/0x1b0 [ 39.114455][ T390] __do_softirq+0x1f8/0x5df [ 39.114625][ T390] irq_exit_rcu+0x97/0xc0 [ 39.114796][ T390] sysvec_apic_timer_interrupt+0x75/0x80 [ 39.115001][ T390] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 39.115209][ T390] default_idle+0xf/0x20 [ 39.115381][ T390] default_idle_call+0x6d/0xb0 [ 39.115555][ T390] cpuidle_idle_call+0x1f4/0x280 [ 39.115730][ T390] do_idle+0xf9/0x160 [ 39.115868][ T390] cpu_startup_entry+0x54/0x60 [ 39.116040][ T390] rest_init+0x14f/0x260 [ 39.116214][ T390] start_kernel+0x318/0x3d0 [ 39.116392][ T390] x86_64_start_reservations+0x18/0x30 [ 39.116563][ T390] x86_64_start_kernel+0xba/0x110 [ 39.116732][ T390] common_startup_64+0x12c/0x138 [ 39.116908][ T390] INITIAL USE at: [ 39.117010][ T390] __lock_acquire+0x797/0x1570 [ 39.117179][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.117356][ T390] _raw_write_lock_bh+0x38/0x50 [ 39.117531][ T390] addrconf_permanent_addr+0x6e/0x670 [ 39.117700][ T390] addrconf_notify+0x749/0xd60 [ 39.117874][ T390] notifier_call_chain+0xcd/0x150 [ 39.118137][ T390] __dev_notify_flags+0xe6/0x250 [ 39.118307][ T390] dev_change_flags+0xec/0x160 [ 39.118478][ T390] do_setlink+0x7d6/0x21e0 [ 39.118732][ T390] __rtnl_newlink+0xaa7/0xd80 [ 39.118901][ T390] rtnl_newlink+0x63/0xa0 [ 39.119071][ T390] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 39.119244][ T390] netlink_rcv_skb+0x130/0x360 [ 39.119497][ T390] netlink_unicast+0x449/0x710 [ 39.119668][ T390] netlink_sendmsg+0x723/0xbe0 [ 39.119842][ T390] ____sys_sendmsg+0x7b2/0xa10 [ 39.120095][ T390] ___sys_sendmsg+0xee/0x170 [ 39.120265][ T390] __sys_sendmsg+0xcd/0x170 [ 39.120434][ T390] do_syscall_64+0xc6/0x1e0 [ 39.120605][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.120887][ T390] INITIAL READ USE at: [ 39.120989][ T390] __lock_acquire+0x797/0x1570 [ 39.121164][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.121414][ T390] _raw_read_lock_bh+0x44/0x80 [ 39.121584][ T390] inet6_fill_ifla6_attrs+0x516/0x740 [ 39.121790][ T390] inet6_fill_link_af+0x5e/0xe0 [ 39.122045][ T390] rtnl_fill_ifinfo+0x1612/0x29e0 [ 39.122215][ T390] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 39.122420][ T390] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 39.122707][ T390] rtmsg_ifinfo+0x5b/0xa0 [ 39.122874][ T390] register_netdevice+0x1177/0x1690 [ 39.123078][ T390] register_netdev+0x20/0x40 [ 39.123248][ T390] sit_init_net+0x250/0x4f0 [ 39.123504][ T390] ops_init+0x9b/0x560 [ 39.123673][ T390] register_pernet_operations+0x2db/0x710 [ 39.123878][ T390] register_pernet_device+0x2a/0x60 [ 39.124165][ T390] sit_init+0x23/0xe0 [ 39.124354][ T390] do_one_initcall+0x8d/0x1e0 [ 39.124529][ T390] do_initcalls+0x1b2/0x3e0 [ 39.124787][ T390] kernel_init_freeable+0x232/0x310 [ 39.124995][ T390] kernel_init+0x20/0x200 [ 39.125177][ T390] ret_from_fork+0x31/0x70 [ 39.125431][ T390] ret_from_fork_asm+0x1a/0x30 [ 39.125601][ T390] } [ 39.125672][ T390] ... key at: [] __key.37+0x0/0x40 [ 39.125875][ T390] [ 39.125875][ T390] the dependencies between the lock to be acquired [ 39.125876][ T390] and SOFTIRQ-irq-unsafe lock: [ 39.126318][ T390] -> (&p->alloc_lock){+.+.}-{2:2} { [ 39.126470][ T390] HARDIRQ-ON-W at: [ 39.126573][ T390] __lock_acquire+0x797/0x1570 [ 39.126828][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.127006][ T390] _raw_spin_lock+0x30/0x40 [ 39.127177][ T390] set_mems_allowed+0x1d/0x210 [ 39.127511][ T390] kernel_init_freeable+0x72/0x310 [ 39.127679][ T390] kernel_init+0x20/0x200 [ 39.127847][ T390] ret_from_fork+0x31/0x70 [ 39.128030][ T390] ret_from_fork_asm+0x1a/0x30 [ 39.128280][ T390] SOFTIRQ-ON-W at: [ 39.128381][ T390] __lock_acquire+0x797/0x1570 [ 39.128549][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.128802][ T390] _raw_spin_lock+0x30/0x40 [ 39.128971][ T390] set_mems_allowed+0x1d/0x210 [ 39.129140][ T390] kernel_init_freeable+0x72/0x310 [ 39.129308][ T390] kernel_init+0x20/0x200 [ 39.129557][ T390] ret_from_fork+0x31/0x70 [ 39.129724][ T390] ret_from_fork_asm+0x1a/0x30 [ 39.129894][ T390] INITIAL USE at: [ 39.129995][ T390] __lock_acquire+0x797/0x1570 [ 39.130246][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.130414][ T390] _raw_spin_lock+0x30/0x40 [ 39.130582][ T390] set_mems_allowed+0x1d/0x210 [ 39.130832][ T390] kernel_init_freeable+0x72/0x310 [ 39.130999][ T390] kernel_init+0x20/0x200 [ 39.131179][ T390] ret_from_fork+0x31/0x70 [ 39.131428][ T390] ret_from_fork_asm+0x1a/0x30 [ 39.131595][ T390] } [ 39.131666][ T390] ... key at: [] __key.387+0x0/0x40 [ 39.131868][ T390] ... acquired at: [ 39.131976][ T390] check_prev_add+0x194/0xce0 [ 39.132194][ T390] validate_chain+0x71d/0x9b0 [ 39.132327][ T390] __lock_acquire+0xaf0/0x1570 [ 39.132465][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.132599][ T390] _raw_spin_lock+0x30/0x40 [ 39.132814][ T390] __get_task_comm+0x27/0x70 [ 39.132949][ T390] ref_tracker_alloc+0x2ee/0x490 [ 39.133089][ T390] netdev_get_by_index+0x5e/0x80 [ 39.133225][ T390] fib6_nh_init+0x3d8/0x15b0 [ 39.133440][ T390] ip6_route_info_create+0xf18/0x17d0 [ 39.133575][ T390] addrconf_f6i_alloc+0x265/0x560 [ 39.133713][ T390] __ipv6_dev_ac_inc+0x25f/0xb10 [ 39.133849][ T390] addrconf_join_anycast+0x1c0/0x220 [ 39.134066][ T390] dev_forward_change+0x2a6/0x7b0 [ 39.134200][ T390] addrconf_fixup_forwarding+0x23f/0x460 [ 39.134483][ T390] addrconf_sysctl_forward+0x212/0x2b0 [ 39.134622][ T390] proc_sys_call_handler+0x403/0x5e0 [ 39.134845][ T390] vfs_write+0x9e5/0x10a0 [ 39.134987][ T390] ksys_write+0xf5/0x1e0 [ 39.135127][ T390] do_syscall_64+0xc6/0x1e0 [ 39.135265][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.135518][ T390] [ 39.135594][ T390] [ 39.135594][ T390] stack backtrace: [ 39.135763][ T390] CPU: 1 PID: 390 Comm: sysctl Not tainted 6.9.0-rc1-virtme #1 [ 39.135969][ T390] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 39.136278][ T390] Call Trace: [ 39.136384][ T390] [ 39.136456][ T390] dump_stack_lvl+0x82/0xd0 [ 39.136601][ T390] print_bad_irq_dependency+0x957/0xd40 [ 39.136821][ T390] ? hlock_class+0x4e/0x130 [ 39.136964][ T390] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 39.137135][ T390] ? __pfx_usage_skip+0x10/0x10 [ 39.137272][ T390] ? __bfs+0x246/0x650 [ 39.137459][ T390] ? __pfx_usage_match+0x10/0x10 [ 39.137600][ T390] check_irq_usage+0x596/0x850 [ 39.137742][ T390] ? __pfx_check_irq_usage+0x10/0x10 [ 39.137882][ T390] ? __bfs+0x246/0x650 [ 39.137988][ T390] ? __pfx_hlock_conflict+0x10/0x10 [ 39.138286][ T390] ? check_path.constprop.0+0x24/0x50 [ 39.138424][ T390] ? check_noncircular+0x14c/0x3e0 [ 39.138563][ T390] ? __pfx_check_noncircular+0x10/0x10 [ 39.138707][ T390] ? check_prev_add+0x194/0xce0 [ 39.138927][ T390] check_prev_add+0x194/0xce0 [ 39.139068][ T390] ? validate_chain+0x130/0x9b0 [ 39.139210][ T390] validate_chain+0x71d/0x9b0 [ 39.139350][ T390] ? mark_lock+0x38/0x3e0 [ 39.139456][ T390] ? __pfx_validate_chain+0x10/0x10 [ 39.139681][ T390] ? hlock_class+0x4e/0x130 [ 39.139820][ T390] ? mark_lock+0x38/0x3e0 [ 39.139926][ T390] __lock_acquire+0xaf0/0x1570 [ 39.140071][ T390] lock_acquire.part.0+0xeb/0x330 [ 39.140212][ T390] ? __get_task_comm+0x27/0x70 [ 39.140349][ T390] ? mark_lock+0x38/0x3e0 [ 39.140454][ T390] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 39.140593][ T390] ? trace_lock_acquire+0x135/0x1c0 [ 39.140734][ T390] ? __get_task_comm+0x27/0x70 [ 39.140958][ T390] ? lock_acquire+0x32/0xc0 [ 39.141096][ T390] ? __get_task_comm+0x27/0x70 [ 39.141236][ T390] _raw_spin_lock+0x30/0x40 [ 39.141378][ T390] ? __get_task_comm+0x27/0x70 [ 39.141599][ T390] __get_task_comm+0x27/0x70 [ 39.141736][ T390] ref_tracker_alloc+0x2ee/0x490 [ 39.141876][ T390] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 39.142015][ T390] ? dev_get_by_index+0x177/0x270 [ 39.142153][ T390] ? netdev_get_by_index+0x5e/0x80 [ 39.142293][ T390] ? fib6_nh_init+0x3d8/0x15b0 [ 39.142432][ T390] ? ip6_route_info_create+0xf18/0x17d0 [ 39.142570][ T390] ? addrconf_f6i_alloc+0x265/0x560 [ 39.142796][ T390] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 39.142940][ T390] ? addrconf_join_anycast+0x1c0/0x220 [ 39.143078][ T390] ? dev_forward_change+0x2a6/0x7b0 [ 39.143216][ T390] ? addrconf_fixup_forwarding+0x23f/0x460 [ 39.143468][ T390] ? addrconf_sysctl_forward+0x212/0x2b0 [ 39.143608][ T390] ? proc_sys_call_handler+0x403/0x5e0 [ 39.143746][ T390] ? vfs_write+0x9e5/0x10a0 [ 39.143889][ T390] ? ksys_write+0xf5/0x1e0 [ 39.144026][ T390] ? do_syscall_64+0xc6/0x1e0 [ 39.144249][ T390] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.144427][ T390] ? dev_get_by_index+0x177/0x270 [ 39.144565][ T390] netdev_get_by_index+0x5e/0x80 [ 39.144702][ T390] fib6_nh_init+0x3d8/0x15b0 [ 39.144923][ T390] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 39.145095][ T390] ? __pfx_fib6_nh_init+0x10/0x10 [ 39.145235][ T390] ? kasan_save_track+0x14/0x30 [ 39.145375][ T390] ? __kasan_kmalloc+0x7f/0x90 [ 39.145593][ T390] ? __kmalloc+0x1d7/0x3c0 [ 39.145731][ T390] ? fib6_get_table+0x116/0x290 [ 39.145873][ T390] ip6_route_info_create+0xf18/0x17d0 [ 39.146010][ T390] ? __lock_release+0x103/0x460 [ 39.146150][ T390] ? __pfx_ip6_route_info_create+0x10/0x10 [ 39.146323][ T390] ? addrconf_f6i_alloc+0x12d/0x560 [ 39.146464][ T390] addrconf_f6i_alloc+0x265/0x560 [ 39.146603][ T390] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 39.146828][ T390] ? do_raw_write_lock+0x122/0x3b0 [ 39.146964][ T390] ? __pfx_do_raw_write_lock+0x10/0x10 [ 39.147100][ T390] ? lock_acquire+0x32/0xc0 [ 39.147240][ T390] __ipv6_dev_ac_inc+0x25f/0xb10 [ 39.147460][ T390] addrconf_join_anycast+0x1c0/0x220 [ 39.147597][ T390] ? mark_lock+0x38/0x3e0 [ 39.147707][ T390] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 39.147879][ T390] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 39.148133][ T390] dev_forward_change+0x2a6/0x7b0 [ 39.148273][ T390] ? __pfx_dev_forward_change+0x10/0x10 [ 39.148414][ T390] addrconf_fixup_forwarding+0x23f/0x460 [ 39.148556][ T390] addrconf_sysctl_forward+0x212/0x2b0 [ 39.148858][ T390] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 39.149034][ T390] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 39.149207][ T390] ? trace_kmalloc+0x2a/0xe0 [ 39.149346][ T390] ? __kmalloc_node+0x220/0x400 [ 39.149570][ T390] ? proc_sys_call_handler+0x30b/0x5e0 [ 39.149709][ T390] proc_sys_call_handler+0x403/0x5e0 [ 39.149851][ T390] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 39.150023][ T390] ? __lock_acquire+0xaf0/0x1570 [ 39.150164][ T390] vfs_write+0x9e5/0x10a0 [ 39.150272][ T390] ? do_user_addr_fault+0x449/0xbe0 [ 39.150412][ T390] ? __pfx_vfs_write+0x10/0x10 [ 39.150549][ T390] ? find_held_lock+0x2c/0x110 [ 39.150691][ T390] ? __pfx___lock_release+0x10/0x10 [ 39.150914][ T390] ? __fget_light+0x53/0x1e0 [ 39.151055][ T390] ksys_write+0xf5/0x1e0 [ 39.151160][ T390] ? __pfx_ksys_write+0x10/0x10 [ 39.151298][ T390] ? do_user_addr_fault+0x4bd/0xbe0 [ 39.151520][ T390] do_syscall_64+0xc6/0x1e0 [ 39.151678][ T390] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 39.151852][ T390] RIP: 0033:0x7f83229fb957 [ 39.152000][ T390] 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 [ 39.152576][ T390] RSP: 002b:00007ffc082a0698 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.152876][ T390] RAX: ffffffffffffffda RBX: 0000556cd2a77360 RCX: 00007f83229fb957 [ 39.153084][ T390] RDX: 0000000000000002 RSI: 0000556cd2a773a0 RDI: 0000000000000005 [ 39.153291][ T390] RBP: 0000556cd2a794d0 R08: 0000000000000003 R09: 0000000000000077 [ 39.153590][ T390] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 [ 39.153799][ T390] R13: 0000000000000002 R14: 0000000000000002 R15: 00007f8322ab29c0 [ 39.154014][ T390]