[ 70.662240][ T851] [ 70.662411][ T851] ===================================================== [ 70.662604][ T851] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 70.662823][ T851] 6.9.0-rc1-virtme #1 Not tainted [ 70.662972][ T851] ----------------------------------------------------- [ 70.663157][ T851] ip/851 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 70.663339][ T851] ffff888003cfac28 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 70.663610][ T851] [ 70.663610][ T851] and this task is already holding: [ 70.663833][ T851] ffff8880065d0d80 (&ndev->lock){++--}-{2:2}, at: addrconf_permanent_addr+0x6e/0x670 [ 70.664101][ T851] which would create a new lock dependency: [ 70.664284][ T851] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 70.664508][ T851] [ 70.664508][ T851] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 70.664757][ T851] (&ndev->lock){++--}-{2:2} [ 70.664761][ T851] [ 70.664761][ T851] ... which became SOFTIRQ-irq-safe at: [ 70.665119][ T851] __lock_acquire+0x797/0x1570 [ 70.665272][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.665419][ T851] _raw_write_lock+0x30/0x40 [ 70.665568][ T851] addrconf_rs_timer+0xa9/0x730 [ 70.665716][ T851] call_timer_fn+0x13b/0x230 [ 70.665867][ T851] __run_timers+0x545/0x810 [ 70.666015][ T851] run_timer_softirq+0xe8/0x1b0 [ 70.666165][ T851] __do_softirq+0x1f8/0x5df [ 70.666313][ T851] irq_exit_rcu+0x97/0xc0 [ 70.666460][ T851] sysvec_apic_timer_interrupt+0x75/0x80 [ 70.666608][ T851] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 70.666792][ T851] _raw_spin_unlock_irqrestore+0x43/0x70 [ 70.666939][ T851] get_partial_node.part.0+0x1c5/0x3a0 [ 70.667092][ T851] ___slab_alloc+0xb70/0x10a0 [ 70.667238][ T851] __kmalloc+0x34c/0x3c0 [ 70.667354][ T851] p9_fcall_init+0x7d/0x1b0 [ 70.667501][ T851] p9_tag_alloc+0x1bd/0x700 [ 70.667650][ T851] p9_client_prepare_req+0xe6/0x290 [ 70.667796][ T851] p9_client_rpc+0x18d/0x930 [ 70.667942][ T851] p9_client_clunk+0x74/0xe0 [ 70.668088][ T851] v9fs_dir_release+0x25f/0x320 [ 70.668234][ T851] __fput+0x1fc/0xa80 [ 70.668345][ T851] task_work_run+0x132/0x220 [ 70.668495][ T851] syscall_exit_to_user_mode+0x1d7/0x1e0 [ 70.668642][ T851] do_syscall_64+0xd6/0x1e0 [ 70.668796][ T851] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 70.668981][ T851] [ 70.668981][ T851] to a SOFTIRQ-irq-unsafe lock: [ 70.669160][ T851] (&p->alloc_lock){+.+.}-{2:2} [ 70.669164][ T851] [ 70.669164][ T851] ... which became SOFTIRQ-irq-unsafe at: [ 70.669524][ T851] ... [ 70.669525][ T851] __lock_acquire+0x797/0x1570 [ 70.669751][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.669897][ T851] _raw_spin_lock+0x30/0x40 [ 70.670044][ T851] set_mems_allowed+0x1d/0x210 [ 70.670192][ T851] kernel_init_freeable+0x72/0x310 [ 70.670339][ T851] kernel_init+0x20/0x200 [ 70.670484][ T851] ret_from_fork+0x31/0x70 [ 70.670636][ T851] ret_from_fork_asm+0x1a/0x30 [ 70.670785][ T851] [ 70.670785][ T851] other info that might help us debug this: [ 70.670785][ T851] [ 70.671071][ T851] Possible interrupt unsafe locking scenario: [ 70.671071][ T851] [ 70.671286][ T851] CPU0 CPU1 [ 70.671433][ T851] ---- ---- [ 70.671579][ T851] lock(&p->alloc_lock); [ 70.671691][ T851] local_irq_disable(); [ 70.671872][ T851] lock(&ndev->lock); [ 70.672058][ T851] lock(&p->alloc_lock); [ 70.672238][ T851] [ 70.672351][ T851] lock(&ndev->lock); [ 70.672462][ T851] [ 70.672462][ T851] *** DEADLOCK *** [ 70.672462][ T851] [ 70.672676][ T851] 2 locks held by ip/851: [ 70.672786][ T851] #0: ffffffffb51b7208 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2af/0xbf0 [ 70.673052][ T851] #1: ffff8880065d0d80 (&ndev->lock){++--}-{2:2}, at: addrconf_permanent_addr+0x6e/0x670 [ 70.673316][ T851] [ 70.673316][ T851] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 70.673600][ T851] -> (&ndev->lock){++--}-{2:2} { [ 70.673763][ T851] HARDIRQ-ON-W at: [ 70.673876][ T851] __lock_acquire+0x797/0x1570 [ 70.674064][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.674252][ T851] _raw_write_lock_bh+0x38/0x50 [ 70.674435][ T851] addrconf_permanent_addr+0x6e/0x670 [ 70.674621][ T851] addrconf_notify+0x749/0xd60 [ 70.674806][ T851] notifier_call_chain+0xcd/0x150 [ 70.674991][ T851] __dev_notify_flags+0xe6/0x250 [ 70.675178][ T851] dev_change_flags+0xec/0x160 [ 70.675365][ T851] do_setlink+0x7d6/0x21e0 [ 70.675549][ T851] __rtnl_newlink+0xaa7/0xd80 [ 70.675735][ T851] rtnl_newlink+0x63/0xa0 [ 70.675920][ T851] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 70.676102][ T851] netlink_rcv_skb+0x130/0x360 [ 70.676289][ T851] netlink_unicast+0x449/0x710 [ 70.676475][ T851] netlink_sendmsg+0x723/0xbe0 [ 70.676663][ T851] ____sys_sendmsg+0x7b2/0xa10 [ 70.676849][ T851] ___sys_sendmsg+0xee/0x170 [ 70.677035][ T851] __sys_sendmsg+0xcd/0x170 [ 70.677221][ T851] do_syscall_64+0xc6/0x1e0 [ 70.677405][ T851] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 70.677626][ T851] HARDIRQ-ON-R at: [ 70.677831][ T851] __lock_acquire+0x797/0x1570 [ 70.678019][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.678203][ T851] _raw_read_lock_bh+0x44/0x80 [ 70.678482][ T851] inet6_fill_ifla6_attrs+0x516/0x740 [ 70.678667][ T851] inet6_fill_link_af+0x5e/0xe0 [ 70.678858][ T851] rtnl_fill_ifinfo+0x1615/0x2a90 [ 70.679042][ T851] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 70.679321][ T851] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 70.679540][ T851] rtmsg_ifinfo+0x5b/0xa0 [ 70.679726][ T851] register_netdevice+0x1177/0x1690 [ 70.680005][ T851] register_netdev+0x20/0x40 [ 70.680188][ T851] vti6_init_net+0x25d/0x380 [ 70.680375][ T851] ops_init+0x9b/0x560 [ 70.680526][ T851] register_pernet_operations+0x2db/0x710 [ 70.680840][ T851] register_pernet_device+0x2a/0x60 [ 70.681024][ T851] vti6_tunnel_init+0x18/0x110 [ 70.681210][ T851] do_one_initcall+0x8d/0x1e0 [ 70.681486][ T851] do_initcalls+0x1b2/0x3e0 [ 70.681670][ T851] kernel_init_freeable+0x232/0x310 [ 70.681854][ T851] kernel_init+0x20/0x200 [ 70.682143][ T851] ret_from_fork+0x31/0x70 [ 70.682333][ T851] ret_from_fork_asm+0x1a/0x30 [ 70.682519][ T851] IN-SOFTIRQ-W at: [ 70.682629][ T851] __lock_acquire+0x797/0x1570 [ 70.682814][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.683001][ T851] _raw_write_lock+0x30/0x40 [ 70.683186][ T851] addrconf_rs_timer+0xa9/0x730 [ 70.683469][ T851] call_timer_fn+0x13b/0x230 [ 70.683654][ T851] __run_timers+0x545/0x810 [ 70.683839][ T851] run_timer_softirq+0xe8/0x1b0 [ 70.684024][ T851] __do_softirq+0x1f8/0x5df [ 70.684300][ T851] irq_exit_rcu+0x97/0xc0 [ 70.684484][ T851] sysvec_apic_timer_interrupt+0x75/0x80 [ 70.684707][ T851] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 70.685023][ T851] _raw_spin_unlock_irqrestore+0x43/0x70 [ 70.685244][ T851] get_partial_node.part.0+0x1c5/0x3a0 [ 70.685430][ T851] ___slab_alloc+0xb70/0x10a0 [ 70.685800][ T851] __kmalloc+0x34c/0x3c0 [ 70.685986][ T851] p9_fcall_init+0x7d/0x1b0 [ 70.686172][ T851] p9_tag_alloc+0x1bd/0x700 [ 70.686449][ T851] p9_client_prepare_req+0xe6/0x290 [ 70.686633][ T851] p9_client_rpc+0x18d/0x930 [ 70.686818][ T851] p9_client_clunk+0x74/0xe0 [ 70.687003][ T851] v9fs_dir_release+0x25f/0x320 [ 70.687283][ T851] __fput+0x1fc/0xa80 [ 70.687432][ T851] task_work_run+0x132/0x220 [ 70.687619][ T851] syscall_exit_to_user_mode+0x1d7/0x1e0 [ 70.687930][ T851] do_syscall_64+0xd6/0x1e0 [ 70.688114][ T851] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 70.688333][ T851] IN-SOFTIRQ-R at: [ 70.688444][ T851] __lock_acquire+0x797/0x1570 [ 70.688721][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.688917][ T851] _raw_read_lock_bh+0x44/0x80 [ 70.689102][ T851] ipv6_get_lladdr+0xa9/0x3e0 [ 70.689379][ T851] addrconf_rs_timer+0x24a/0x730 [ 70.689563][ T851] call_timer_fn+0x13b/0x230 [ 70.689747][ T851] __run_timers+0x545/0x810 [ 70.689931][ T851] run_timer_softirq+0xe8/0x1b0 [ 70.690223][ T851] __do_softirq+0x1f8/0x5df [ 70.690410][ T851] irq_exit_rcu+0x97/0xc0 [ 70.690594][ T851] sysvec_apic_timer_interrupt+0x75/0x80 [ 70.690817][ T851] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 70.691037][ T851] _raw_spin_unlock_irqrestore+0x43/0x70 [ 70.691258][ T851] get_partial_node.part.0+0x1c5/0x3a0 [ 70.691443][ T851] ___slab_alloc+0xb70/0x10a0 [ 70.691629][ T851] __kmalloc+0x34c/0x3c0 [ 70.691813][ T851] p9_fcall_init+0x7d/0x1b0 [ 70.692092][ T851] p9_tag_alloc+0x1bd/0x700 [ 70.692276][ T851] p9_client_prepare_req+0xe6/0x290 [ 70.692461][ T851] p9_client_rpc+0x18d/0x930 [ 70.692645][ T851] p9_client_clunk+0x74/0xe0 [ 70.692831][ T851] v9fs_dir_release+0x25f/0x320 [ 70.693015][ T851] __fput+0x1fc/0xa80 [ 70.693163][ T851] task_work_run+0x132/0x220 [ 70.693440][ T851] syscall_exit_to_user_mode+0x1d7/0x1e0 [ 70.693658][ T851] do_syscall_64+0xd6/0x1e0 [ 70.693843][ T851] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 70.694155][ T851] INITIAL USE at: [ 70.694268][ T851] __lock_acquire+0x797/0x1570 [ 70.694452][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.694635][ T851] _raw_write_lock_bh+0x38/0x50 [ 70.694912][ T851] addrconf_permanent_addr+0x6e/0x670 [ 70.695098][ T851] addrconf_notify+0x749/0xd60 [ 70.695283][ T851] notifier_call_chain+0xcd/0x150 [ 70.695562][ T851] __dev_notify_flags+0xe6/0x250 [ 70.695747][ T851] dev_change_flags+0xec/0x160 [ 70.695932][ T851] do_setlink+0x7d6/0x21e0 [ 70.696115][ T851] __rtnl_newlink+0xaa7/0xd80 [ 70.696390][ T851] rtnl_newlink+0x63/0xa0 [ 70.696573][ T851] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 70.696756][ T851] netlink_rcv_skb+0x130/0x360 [ 70.697041][ T851] netlink_unicast+0x449/0x710 [ 70.697225][ T851] netlink_sendmsg+0x723/0xbe0 [ 70.697408][ T851] ____sys_sendmsg+0x7b2/0xa10 [ 70.697593][ T851] ___sys_sendmsg+0xee/0x170 [ 70.697777][ T851] __sys_sendmsg+0xcd/0x170 [ 70.697962][ T851] do_syscall_64+0xc6/0x1e0 [ 70.698146][ T851] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 70.698462][ T851] INITIAL READ USE at: [ 70.698572][ T851] __lock_acquire+0x797/0x1570 [ 70.698757][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.698946][ T851] _raw_read_lock_bh+0x44/0x80 [ 70.699229][ T851] inet6_fill_ifla6_attrs+0x516/0x740 [ 70.699452][ T851] inet6_fill_link_af+0x5e/0xe0 [ 70.699638][ T851] rtnl_fill_ifinfo+0x1615/0x2a90 [ 70.699823][ T851] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 70.700042][ T851] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 70.700260][ T851] rtmsg_ifinfo+0x5b/0xa0 [ 70.700537][ T851] register_netdevice+0x1177/0x1690 [ 70.700760][ T851] register_netdev+0x20/0x40 [ 70.700944][ T851] vti6_init_net+0x25d/0x380 [ 70.701221][ T851] ops_init+0x9b/0x560 [ 70.701404][ T851] register_pernet_operations+0x2db/0x710 [ 70.701622][ T851] register_pernet_device+0x2a/0x60 [ 70.701933][ T851] vti6_tunnel_init+0x18/0x110 [ 70.702119][ T851] do_one_initcall+0x8d/0x1e0 [ 70.702303][ T851] do_initcalls+0x1b2/0x3e0 [ 70.702579][ T851] kernel_init_freeable+0x232/0x310 [ 70.702798][ T851] kernel_init+0x20/0x200 [ 70.702981][ T851] ret_from_fork+0x31/0x70 [ 70.703167][ T851] ret_from_fork_asm+0x1a/0x30 [ 70.703447][ T851] } [ 70.703522][ T851] ... key at: [] __key.37+0x0/0x40 [ 70.703745][ T851] [ 70.703745][ T851] the dependencies between the lock to be acquired [ 70.703746][ T851] and SOFTIRQ-irq-unsafe lock: [ 70.704243][ T851] -> (&p->alloc_lock){+.+.}-{2:2} { [ 70.704397][ T851] HARDIRQ-ON-W at: [ 70.704510][ T851] __lock_acquire+0x797/0x1570 [ 70.704701][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.704887][ T851] _raw_spin_lock+0x30/0x40 [ 70.705073][ T851] set_mems_allowed+0x1d/0x210 [ 70.705258][ T851] kernel_init_freeable+0x72/0x310 [ 70.705442][ T851] kernel_init+0x20/0x200 [ 70.705628][ T851] ret_from_fork+0x31/0x70 [ 70.705818][ T851] ret_from_fork_asm+0x1a/0x30 [ 70.706119][ T851] SOFTIRQ-ON-W at: [ 70.706232][ T851] __lock_acquire+0x797/0x1570 [ 70.706418][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.706605][ T851] _raw_spin_lock+0x30/0x40 [ 70.706791][ T851] set_mems_allowed+0x1d/0x210 [ 70.706977][ T851] kernel_init_freeable+0x72/0x310 [ 70.707161][ T851] kernel_init+0x20/0x200 [ 70.707351][ T851] ret_from_fork+0x31/0x70 [ 70.707537][ T851] ret_from_fork_asm+0x1a/0x30 [ 70.707722][ T851] INITIAL USE at: [ 70.707834][ T851] __lock_acquire+0x797/0x1570 [ 70.708119][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.708305][ T851] _raw_spin_lock+0x30/0x40 [ 70.708491][ T851] set_mems_allowed+0x1d/0x210 [ 70.708683][ T851] kernel_init_freeable+0x72/0x310 [ 70.708874][ T851] kernel_init+0x20/0x200 [ 70.709059][ T851] ret_from_fork+0x31/0x70 [ 70.709244][ T851] ret_from_fork_asm+0x1a/0x30 [ 70.709523][ T851] } [ 70.709599][ T851] ... key at: [] __key.388+0x0/0x40 [ 70.709821][ T851] ... acquired at: [ 70.709936][ T851] check_prev_add+0x194/0xce0 [ 70.710178][ T851] validate_chain+0x71d/0x9b0 [ 70.710326][ T851] __lock_acquire+0xaf0/0x1570 [ 70.710472][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.710620][ T851] _raw_spin_lock+0x30/0x40 [ 70.710859][ T851] __get_task_comm+0x27/0x70 [ 70.711007][ T851] ref_tracker_alloc+0x2ee/0x490 [ 70.711155][ T851] netdev_get_by_index+0x5e/0x80 [ 70.711305][ T851] fib6_nh_init+0x3d8/0x1580 [ 70.711454][ T851] ip6_route_info_create+0xf18/0x17d0 [ 70.711692][ T851] ip6_route_add+0x1c/0x140 [ 70.711838][ T851] addrconf_prefix_route+0x2a6/0x430 [ 70.711985][ T851] addrconf_permanent_addr+0x32f/0x670 [ 70.712133][ T851] addrconf_notify+0x749/0xd60 [ 70.712372][ T851] notifier_call_chain+0xcd/0x150 [ 70.712519][ T851] __dev_notify_flags+0xe6/0x250 [ 70.712670][ T851] dev_change_flags+0xec/0x160 [ 70.712817][ T851] do_setlink+0x7d6/0x21e0 [ 70.713061][ T851] __rtnl_newlink+0xaa7/0xd80 [ 70.713208][ T851] rtnl_newlink+0x63/0xa0 [ 70.713354][ T851] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 70.713502][ T851] netlink_rcv_skb+0x130/0x360 [ 70.713650][ T851] netlink_unicast+0x449/0x710 [ 70.713797][ T851] netlink_sendmsg+0x723/0xbe0 [ 70.713945][ T851] ____sys_sendmsg+0x7b2/0xa10 [ 70.714097][ T851] ___sys_sendmsg+0xee/0x170 [ 70.714245][ T851] __sys_sendmsg+0xcd/0x170 [ 70.714483][ T851] do_syscall_64+0xc6/0x1e0 [ 70.714630][ T851] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 70.714815][ T851] [ 70.714896][ T851] [ 70.714896][ T851] stack backtrace: [ 70.715167][ T851] CPU: 0 PID: 851 Comm: ip Not tainted 6.9.0-rc1-virtme #1 [ 70.715388][ T851] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 70.715806][ T851] Call Trace: [ 70.715920][ T851] [ 70.715998][ T851] dump_stack_lvl+0x82/0xd0 [ 70.716150][ T851] print_bad_irq_dependency+0x957/0xd40 [ 70.716299][ T851] ? hlock_class+0x4e/0x130 [ 70.716539][ T851] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 70.716722][ T851] ? __pfx_usage_skip+0x10/0x10 [ 70.716870][ T851] ? __bfs+0x246/0x650 [ 70.716982][ T851] ? __pfx_usage_match+0x10/0x10 [ 70.717129][ T851] check_irq_usage+0x596/0x850 [ 70.717368][ T851] ? __pfx_check_irq_usage+0x10/0x10 [ 70.717515][ T851] ? __bfs+0x246/0x650 [ 70.717626][ T851] ? __pfx_hlock_conflict+0x10/0x10 [ 70.717773][ T851] ? check_path.constprop.0+0x24/0x50 [ 70.718014][ T851] ? check_noncircular+0x14c/0x3e0 [ 70.718164][ T851] ? __pfx_check_noncircular+0x10/0x10 [ 70.718315][ T851] ? check_prev_add+0x194/0xce0 [ 70.718462][ T851] check_prev_add+0x194/0xce0 [ 70.718609][ T851] ? validate_chain+0x130/0x9b0 [ 70.718757][ T851] validate_chain+0x71d/0x9b0 [ 70.718907][ T851] ? mark_lock+0x38/0x3e0 [ 70.719020][ T851] ? __pfx_validate_chain+0x10/0x10 [ 70.719168][ T851] ? hlock_class+0x4e/0x130 [ 70.719497][ T851] ? mark_lock+0x38/0x3e0 [ 70.719612][ T851] __lock_acquire+0xaf0/0x1570 [ 70.719761][ T851] lock_acquire.part.0+0xeb/0x330 [ 70.719908][ T851] ? __get_task_comm+0x27/0x70 [ 70.720147][ T851] ? mark_lock+0x38/0x3e0 [ 70.720260][ T851] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 70.720409][ T851] ? trace_lock_acquire+0x135/0x1c0 [ 70.720557][ T851] ? __get_task_comm+0x27/0x70 [ 70.720704][ T851] ? lock_acquire+0x32/0xc0 [ 70.720940][ T851] ? __get_task_comm+0x27/0x70 [ 70.721090][ T851] _raw_spin_lock+0x30/0x40 [ 70.721237][ T851] ? __get_task_comm+0x27/0x70 [ 70.721383][ T851] __get_task_comm+0x27/0x70 [ 70.721622][ T851] ref_tracker_alloc+0x2ee/0x490 [ 70.721780][ T851] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 70.721925][ T851] ? dev_get_by_index+0x177/0x270 [ 70.722071][ T851] ? netdev_get_by_index+0x5e/0x80 [ 70.722307][ T851] ? fib6_nh_init+0x3d8/0x1580 [ 70.722456][ T851] ? ip6_route_info_create+0xf18/0x17d0 [ 70.722603][ T851] ? ip6_route_add+0x1c/0x140 [ 70.722750][ T851] ? addrconf_prefix_route+0x2a6/0x430 [ 70.722897][ T851] ? addrconf_permanent_addr+0x32f/0x670 [ 70.723159][ T851] ? addrconf_notify+0x749/0xd60 [ 70.723305][ T851] ? notifier_call_chain+0xcd/0x150 [ 70.723450][ T851] ? __dev_notify_flags+0xe6/0x250 [ 70.723597][ T851] ? dev_change_flags+0xec/0x160 [ 70.723745][ T851] ? do_setlink+0x7d6/0x21e0 [ 70.723890][ T851] ? __rtnl_newlink+0xaa7/0xd80 [ 70.724035][ T851] ? rtnl_newlink+0x63/0xa0 [ 70.724183][ T851] ? rtnetlink_rcv_msg+0x2fb/0xbf0 [ 70.724330][ T851] ? netlink_rcv_skb+0x130/0x360 [ 70.724479][ T851] ? netlink_unicast+0x449/0x710 [ 70.724627][ T851] ? dev_get_by_index+0x177/0x270 [ 70.724774][ T851] netdev_get_by_index+0x5e/0x80 [ 70.725014][ T851] fib6_nh_init+0x3d8/0x1580 [ 70.725163][ T851] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 70.725347][ T851] ? __pfx_fib6_nh_init+0x10/0x10 [ 70.725494][ T851] ? kasan_save_track+0x14/0x30 [ 70.725642][ T851] ? __kasan_kmalloc+0x7f/0x90 [ 70.725789][ T851] ? __kmalloc+0x1d7/0x3c0 [ 70.725936][ T851] ? fib6_get_table+0x116/0x290 [ 70.726086][ T851] ip6_route_info_create+0xf18/0x17d0 [ 70.726235][ T851] ? __pfx_ip6_route_info_create+0x10/0x10 [ 70.726515][ T851] ? __pfx_validate_chain+0x10/0x10 [ 70.726663][ T851] ip6_route_add+0x1c/0x140 [ 70.726810][ T851] addrconf_prefix_route+0x2a6/0x430 [ 70.726958][ T851] ? __pfx_addrconf_prefix_route+0x10/0x10 [ 70.727239][ T851] ? do_raw_write_lock+0x122/0x3b0 [ 70.727386][ T851] ? __pfx_do_raw_write_lock+0x10/0x10 [ 70.727532][ T851] ? lock_acquire+0x32/0xc0 [ 70.727678][ T851] ? addrconf_permanent_addr+0x6e/0x670 [ 70.727919][ T851] addrconf_permanent_addr+0x32f/0x670 [ 70.728068][ T851] addrconf_notify+0x749/0xd60 [ 70.728216][ T851] notifier_call_chain+0xcd/0x150 [ 70.728365][ T851] __dev_notify_flags+0xe6/0x250 [ 70.728604][ T851] ? __pfx___dev_notify_flags+0x10/0x10 [ 70.728751][ T851] ? __dev_change_flags+0x469/0x6c0 [ 70.728905][ T851] ? __pfx___dev_change_flags+0x10/0x10 [ 70.729055][ T851] ? find_held_lock+0x2c/0x110 [ 70.729294][ T851] dev_change_flags+0xec/0x160 [ 70.729441][ T851] do_setlink+0x7d6/0x21e0 [ 70.729586][ T851] ? is_bpf_text_address+0x6c/0x120 [ 70.729734][ T851] ? __pfx_do_setlink+0x10/0x10 [ 70.729973][ T851] ? is_bpf_text_address+0x71/0x120 [ 70.730121][ T851] ? kernel_text_address+0xce/0xe0 [ 70.730267][ T851] ? __kernel_text_address+0x12/0x40 [ 70.730416][ T851] ? unwind_get_return_address+0x5e/0xa0 [ 70.730565][ T851] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 70.730840][ T851] ? arch_stack_walk+0xa2/0xf0 [ 70.730990][ T851] ? stack_trace_save+0x94/0xd0 [ 70.731136][ T851] ? __pfx_stack_trace_save+0x10/0x10 [ 70.731282][ T851] ? stack_depot_save_flags+0x45/0x530 [ 70.731519][ T851] ? mark_lock+0x38/0x3e0 [ 70.731633][ T851] ? kasan_save_stack+0x34/0x50 [ 70.731783][ T851] ? kasan_save_stack+0x24/0x50 [ 70.731930][ T851] ? kasan_save_track+0x14/0x30 [ 70.732170][ T851] ? __kasan_kmalloc+0x7f/0x90 [ 70.732318][ T851] ? rtnl_newlink+0x4a/0xa0 [ 70.732465][ T851] ? rtnetlink_rcv_msg+0x2fb/0xbf0 [ 70.732613][ T851] ? netlink_rcv_skb+0x130/0x360 [ 70.732849][ T851] ? validate_nla+0x1d30/0x1d30 [ 70.732997][ T851] ? netlink_sendmsg+0x723/0xbe0 [ 70.733143][ T851] ? ____sys_sendmsg+0x7b2/0xa10 [ 70.733293][ T851] ? ___sys_sendmsg+0xee/0x170 [ 70.733441][ T851] __rtnl_newlink+0xaa7/0xd80 [ 70.733681][ T851] ? hlock_class+0x4e/0x130 [ 70.733827][ T851] ? __pfx___rtnl_newlink+0x10/0x10 [ 70.733975][ T851] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 70.734157][ T851] ? __create_object+0x5e/0xb0 [ 70.734394][ T851] ? trace_kmalloc+0x2a/0xe0 [ 70.734542][ T851] rtnl_newlink+0x63/0xa0 [ 70.734654][ T851] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 70.734802][ T851] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 70.735060][ T851] ? hlock_class+0x4e/0x130 [ 70.735206][ T851] ? mark_lock+0x38/0x3e0 [ 70.735319][ T851] ? __lock_acquire+0xaf0/0x1570 [ 70.735466][ T851] netlink_rcv_skb+0x130/0x360 [ 70.735612][ T851] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 70.735759][ T851] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 70.735906][ T851] ? lock_acquire.part.0+0xeb/0x330 [ 70.736062][ T851] ? netlink_deliver_tap+0xc8/0x340 [ 70.736210][ T851] ? lock_acquire+0x32/0xc0 [ 70.736357][ T851] ? netlink_deliver_tap+0xc8/0x340 [ 70.736504][ T851] ? netlink_deliver_tap+0xc8/0x340 [ 70.736651][ T851] ? netlink_deliver_tap+0x149/0x340 [ 70.736800][ T851] netlink_unicast+0x449/0x710 [ 70.737044][ T851] ? __pfx_netlink_unicast+0x10/0x10 [ 70.737193][ T851] ? find_held_lock+0x2c/0x110 [ 70.737340][ T851] netlink_sendmsg+0x723/0xbe0 [ 70.737487][ T851] ? __pfx_netlink_sendmsg+0x10/0x10 [ 70.737634][ T851] ? __might_fault+0xc3/0x170 [ 70.737782][ T851] ? __import_iovec+0x35d/0x5d0 [ 70.737938][ T851] ____sys_sendmsg+0x7b2/0xa10 [ 70.738085][ T851] ? __pfx_____sys_sendmsg+0x10/0x10 [ 70.738231][ T851] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 70.738504][ T851] ? __pfx_validate_chain+0x10/0x10 [ 70.738658][ T851] ___sys_sendmsg+0xee/0x170 [ 70.738811][ T851] ? __pfx____sys_sendmsg+0x10/0x10 [ 70.738963][ T851] ? find_held_lock+0x2c/0x110 [ 70.739199][ T851] ? __lock_release+0x103/0x460 [ 70.739346][ T851] ? __debug_check_no_obj_freed+0x253/0x520 [ 70.739529][ T851] ? __pfx___lock_release+0x10/0x10 [ 70.739677][ T851] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 70.739919][ T851] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 70.740103][ T851] ? __fget_light+0x53/0x1e0 [ 70.740251][ T851] __sys_sendmsg+0xcd/0x170 [ 70.740402][ T851] ? __pfx___sys_sendmsg+0x10/0x10 [ 70.740647][ T851] do_syscall_64+0xc6/0x1e0 [ 70.740795][ T851] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 70.740978][ T851] RIP: 0033:0x7f2a10c097b7 [ 70.741133][ T851] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 70.741751][ T851] RSP: 002b:00007ffcd698bd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 70.742074][ T851] RAX: ffffffffffffffda RBX: 00007ffcd698c4d0 RCX: 00007f2a10c097b7 [ 70.742296][ T851] RDX: 0000000000000000 RSI: 00007ffcd698be00 RDI: 0000000000000005 [ 70.742519][ T851] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 70.742742][ T851] R10: 00007f2a10ac74a8 R11: 0000000000000246 R12: 0000000000000003 [ 70.742962][ T851] R13: 00000000660ea701 R14: 0000000000495540 R15: 0000000000000000 [ 70.743185][ T851] [ 70.749098][ T851] ip (851) used greatest stack depth: 21816 bytes left