[ 29.916626][ T462] ip (462) used greatest stack depth: 23744 bytes left [ 35.541477][ T516] gre: GRE over IPv4 demultiplexor driver [ 35.589651][ T516] ip6_gre: GRE over IPv6 tunneling driver [ 37.746969][ T538] 8021q: 802.1Q VLAN Support v1.8 [ 41.858412][ T576] GACT probability NOT on [ 45.856434][ T613] [ 45.856562][ T613] ===================================================== [ 45.856757][ T613] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 45.856982][ T613] 6.9.0-rc1-virtme #1 Not tainted [ 45.857138][ T613] ----------------------------------------------------- [ 45.857336][ T613] sysctl/613 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 45.857572][ T613] ffff888005a92c28 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 45.857850][ T613] [ 45.857850][ T613] and this task is already holding: [ 45.858078][ T613] ffff888005882580 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 45.858367][ T613] which would create a new lock dependency: [ 45.858556][ T613] (&ndev->lock){++--}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 45.858785][ T613] [ 45.858785][ T613] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 45.859057][ T613] (&ndev->lock){++--}-{2:2} [ 45.859061][ T613] [ 45.859061][ T613] ... which became SOFTIRQ-irq-safe at: [ 45.859459][ T613] __lock_acquire+0x797/0x1570 [ 45.859630][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.859808][ T613] _raw_write_lock+0x30/0x40 [ 45.859969][ T613] addrconf_rs_timer+0xa9/0x730 [ 45.860135][ T613] call_timer_fn+0x13b/0x230 [ 45.860299][ T613] __run_timers+0x545/0x810 [ 45.860449][ T613] timer_expire_remote+0x9b/0xe0 [ 45.860612][ T613] tmigr_handle_remote_cpu+0x270/0x430 [ 45.860769][ T613] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.860934][ T613] tmigr_handle_remote+0x21d/0x3a0 [ 45.861086][ T613] __do_softirq+0x1f8/0x5df [ 45.861246][ T613] irq_exit_rcu+0x97/0xc0 [ 45.861414][ T613] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.861585][ T613] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.861792][ T613] __orc_find+0x83/0xf0 [ 45.861910][ T613] unwind_next_frame+0x1d2/0x1d00 [ 45.862075][ T613] arch_stack_walk+0x8c/0xf0 [ 45.862227][ T613] stack_trace_save+0x94/0xd0 [ 45.862395][ T613] kasan_save_stack+0x24/0x50 [ 45.862561][ T613] kasan_save_track+0x14/0x30 [ 45.862729][ T613] __kasan_slab_alloc+0x59/0x70 [ 45.862880][ T613] kmem_cache_alloc+0xef/0x270 [ 45.863041][ T613] __alloc_object+0x39/0x6f0 [ 45.863198][ T613] __create_object+0x22/0xb0 [ 45.863401][ T613] __kmalloc+0x2ce/0x3c0 [ 45.863539][ T613] p9pdu_vreadf+0x1684/0x21f0 [ 45.863693][ T613] p9pdu_readf+0xa7/0xe0 [ 45.863818][ T613] p9_client_walk+0x293/0x650 [ 45.863972][ T613] v9fs_vfs_lookup.part.0+0x12f/0x390 [ 45.864136][ T613] __lookup_slow+0x209/0x3c0 [ 45.864296][ T613] walk_component+0x2ab/0x4f0 [ 45.864447][ T613] link_path_walk.part.0.constprop.0+0x56a/0x9f0 [ 45.864636][ T613] path_openat+0x1be/0x440 [ 45.864787][ T613] do_filp_open+0x1b3/0x3e0 [ 45.864958][ T613] do_sys_openat2+0x122/0x160 [ 45.865110][ T613] __x64_sys_openat+0x123/0x1e0 [ 45.865290][ T613] do_syscall_64+0xc6/0x1e0 [ 45.865463][ T613] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.865653][ T613] [ 45.865653][ T613] to a SOFTIRQ-irq-unsafe lock: [ 45.865850][ T613] (&p->alloc_lock){+.+.}-{2:2} [ 45.865855][ T613] [ 45.865855][ T613] ... which became SOFTIRQ-irq-unsafe at: [ 45.866241][ T613] ... [ 45.866243][ T613] __lock_acquire+0x797/0x1570 [ 45.866511][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.866665][ T613] _raw_spin_lock+0x30/0x40 [ 45.866840][ T613] set_mems_allowed+0x1d/0x210 [ 45.867003][ T613] kernel_init_freeable+0x72/0x310 [ 45.867163][ T613] kernel_init+0x20/0x200 [ 45.867336][ T613] ret_from_fork+0x31/0x70 [ 45.867491][ T613] ret_from_fork_asm+0x1a/0x30 [ 45.867654][ T613] [ 45.867654][ T613] other info that might help us debug this: [ 45.867654][ T613] [ 45.867962][ T613] Possible interrupt unsafe locking scenario: [ 45.867962][ T613] [ 45.868191][ T613] CPU0 CPU1 [ 45.868363][ T613] ---- ---- [ 45.868515][ T613] lock(&p->alloc_lock); [ 45.868642][ T613] local_irq_disable(); [ 45.868845][ T613] lock(&ndev->lock); [ 45.869041][ T613] lock(&p->alloc_lock); [ 45.869243][ T613] [ 45.869372][ T613] lock(&ndev->lock); [ 45.869509][ T613] [ 45.869509][ T613] *** DEADLOCK *** [ 45.869509][ T613] [ 45.869739][ T613] 3 locks held by sysctl/613: [ 45.869904][ T613] #0: ffff888005fcc3f0 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0xf5/0x1e0 [ 45.870196][ T613] #1: ffffffffab3969c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_fixup_forwarding+0x20/0x460 [ 45.870542][ T613] #2: ffff888005882580 (&ndev->lock){++--}-{2:2}, at: __ipv6_dev_ac_inc+0x42/0xb10 [ 45.870825][ T613] [ 45.870825][ T613] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 45.871129][ T613] -> (&ndev->lock){++--}-{2:2} { [ 45.871297][ T613] HARDIRQ-ON-W at: [ 45.871420][ T613] __lock_acquire+0x797/0x1570 [ 45.871617][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.871804][ T613] _raw_write_lock_bh+0x38/0x50 [ 45.871995][ T613] addrconf_permanent_addr+0x6e/0x670 [ 45.872199][ T613] addrconf_notify+0x749/0xd60 [ 45.872405][ T613] notifier_call_chain+0xcd/0x150 [ 45.872619][ T613] __dev_notify_flags+0xe6/0x250 [ 45.872823][ T613] dev_change_flags+0xec/0x160 [ 45.873015][ T613] do_setlink+0x7d6/0x21e0 [ 45.873214][ T613] __rtnl_newlink+0xaa7/0xd80 [ 45.873420][ T613] rtnl_newlink+0x63/0xa0 [ 45.873613][ T613] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.873805][ T613] netlink_rcv_skb+0x130/0x360 [ 45.873994][ T613] netlink_unicast+0x449/0x710 [ 45.874188][ T613] netlink_sendmsg+0x723/0xbe0 [ 45.874389][ T613] ____sys_sendmsg+0x7b2/0xa10 [ 45.874576][ T613] ___sys_sendmsg+0xee/0x170 [ 45.874768][ T613] __sys_sendmsg+0xcd/0x170 [ 45.874958][ T613] do_syscall_64+0xc6/0x1e0 [ 45.875152][ T613] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.875382][ T613] HARDIRQ-ON-R at: [ 45.875495][ T613] __lock_acquire+0x797/0x1570 [ 45.875683][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.875868][ T613] _raw_read_lock_bh+0x44/0x80 [ 45.876062][ T613] inet6_fill_ifla6_attrs+0x516/0x740 [ 45.876255][ T613] inet6_fill_link_af+0x5e/0xe0 [ 45.876456][ T613] rtnl_fill_ifinfo+0x1612/0x29e0 [ 45.876644][ T613] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 45.876836][ T613] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 45.877075][ T613] rtmsg_ifinfo+0x5b/0xa0 [ 45.877272][ T613] register_netdevice+0x1177/0x1690 [ 45.877466][ T613] register_netdev+0x20/0x40 [ 45.877656][ T613] sit_init_net+0x250/0x4f0 [ 45.877854][ T613] ops_init+0x9b/0x560 [ 45.878014][ T613] register_pernet_operations+0x2db/0x710 [ 45.878264][ T613] register_pernet_device+0x2a/0x60 [ 45.878472][ T613] sit_init+0x23/0xe0 [ 45.878642][ T613] do_one_initcall+0x8d/0x1e0 [ 45.878851][ T613] do_initcalls+0x1b2/0x3e0 [ 45.879054][ T613] kernel_init_freeable+0x232/0x310 [ 45.879246][ T613] kernel_init+0x20/0x200 [ 45.879483][ T613] ret_from_fork+0x31/0x70 [ 45.879676][ T613] ret_from_fork_asm+0x1a/0x30 [ 45.879883][ T613] IN-SOFTIRQ-W at: [ 45.879998][ T613] __lock_acquire+0x797/0x1570 [ 45.880206][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.880411][ T613] _raw_write_lock+0x30/0x40 [ 45.880618][ T613] addrconf_rs_timer+0xa9/0x730 [ 45.880822][ T613] call_timer_fn+0x13b/0x230 [ 45.881017][ T613] __run_timers+0x545/0x810 [ 45.881215][ T613] timer_expire_remote+0x9b/0xe0 [ 45.881424][ T613] tmigr_handle_remote_cpu+0x270/0x430 [ 45.881638][ T613] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.881844][ T613] tmigr_handle_remote+0x21d/0x3a0 [ 45.882032][ T613] __do_softirq+0x1f8/0x5df [ 45.882239][ T613] irq_exit_rcu+0x97/0xc0 [ 45.882465][ T613] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.882713][ T613] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.882943][ T613] __orc_find+0x83/0xf0 [ 45.883151][ T613] unwind_next_frame+0x1d2/0x1d00 [ 45.883362][ T613] arch_stack_walk+0x8c/0xf0 [ 45.883571][ T613] stack_trace_save+0x94/0xd0 [ 45.883765][ T613] kasan_save_stack+0x24/0x50 [ 45.883971][ T613] kasan_save_track+0x14/0x30 [ 45.884173][ T613] __kasan_slab_alloc+0x59/0x70 [ 45.884382][ T613] kmem_cache_alloc+0xef/0x270 [ 45.884593][ T613] __alloc_object+0x39/0x6f0 [ 45.884798][ T613] __create_object+0x22/0xb0 [ 45.884989][ T613] __kmalloc+0x2ce/0x3c0 [ 45.885295][ T613] p9pdu_vreadf+0x1684/0x21f0 [ 45.885476][ T613] p9pdu_readf+0xa7/0xe0 [ 45.885672][ T613] p9_client_walk+0x293/0x650 [ 45.885853][ T613] v9fs_vfs_lookup.part.0+0x12f/0x390 [ 45.886044][ T613] __lookup_slow+0x209/0x3c0 [ 45.886232][ T613] walk_component+0x2ab/0x4f0 [ 45.886426][ T613] link_path_walk.part.0.constprop.0+0x56a/0x9f0 [ 45.886733][ T613] path_openat+0x1be/0x440 [ 45.886932][ T613] do_filp_open+0x1b3/0x3e0 [ 45.887118][ T613] do_sys_openat2+0x122/0x160 [ 45.887556][ T613] __x64_sys_openat+0x123/0x1e0 [ 45.887733][ T613] do_syscall_64+0xc6/0x1e0 [ 45.887915][ T613] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.888223][ T613] IN-SOFTIRQ-R at: [ 45.888347][ T613] __lock_acquire+0x797/0x1570 [ 45.888530][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.888716][ T613] _raw_read_lock_bh+0x44/0x80 [ 45.888911][ T613] ipv6_get_lladdr+0xa9/0x3e0 [ 45.889093][ T613] addrconf_rs_timer+0x24a/0x730 [ 45.889284][ T613] call_timer_fn+0x13b/0x230 [ 45.889558][ T613] __run_timers+0x545/0x810 [ 45.889767][ T613] timer_expire_remote+0x9b/0xe0 [ 45.889948][ T613] tmigr_handle_remote_cpu+0x270/0x430 [ 45.890141][ T613] tmigr_handle_remote_up+0x19f/0x2e0 [ 45.890432][ T613] tmigr_handle_remote+0x21d/0x3a0 [ 45.890616][ T613] __do_softirq+0x1f8/0x5df [ 45.890799][ T613] irq_exit_rcu+0x97/0xc0 [ 45.891080][ T613] sysvec_apic_timer_interrupt+0x75/0x80 [ 45.891314][ T613] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 45.891548][ T613] __orc_find+0x83/0xf0 [ 45.891806][ T613] unwind_next_frame+0x1d2/0x1d00 [ 45.892010][ T613] arch_stack_walk+0x8c/0xf0 [ 45.892213][ T613] stack_trace_save+0x94/0xd0 [ 45.892512][ T613] kasan_save_stack+0x24/0x50 [ 45.892708][ T613] kasan_save_track+0x14/0x30 [ 45.892883][ T613] __kasan_slab_alloc+0x59/0x70 [ 45.893074][ T613] kmem_cache_alloc+0xef/0x270 [ 45.893348][ T613] __alloc_object+0x39/0x6f0 [ 45.893524][ T613] __create_object+0x22/0xb0 [ 45.893700][ T613] __kmalloc+0x2ce/0x3c0 [ 45.893884][ T613] p9pdu_vreadf+0x1684/0x21f0 [ 45.894059][ T613] p9pdu_readf+0xa7/0xe0 [ 45.894234][ T613] p9_client_walk+0x293/0x650 [ 45.894422][ T613] v9fs_vfs_lookup.part.0+0x12f/0x390 [ 45.894678][ T613] __lookup_slow+0x209/0x3c0 [ 45.894854][ T613] walk_component+0x2ab/0x4f0 [ 45.895028][ T613] link_path_walk.part.0.constprop.0+0x56a/0x9f0 [ 45.895341][ T613] path_openat+0x1be/0x440 [ 45.895517][ T613] do_filp_open+0x1b3/0x3e0 [ 45.895690][ T613] do_sys_openat2+0x122/0x160 [ 45.895873][ T613] __x64_sys_openat+0x123/0x1e0 [ 45.896044][ T613] do_syscall_64+0xc6/0x1e0 [ 45.896219][ T613] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.896526][ T613] INITIAL USE at: [ 45.896635][ T613] __lock_acquire+0x797/0x1570 [ 45.896812][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.897000][ T613] _raw_write_lock_bh+0x38/0x50 [ 45.897279][ T613] addrconf_permanent_addr+0x6e/0x670 [ 45.897456][ T613] addrconf_notify+0x749/0xd60 [ 45.897635][ T613] notifier_call_chain+0xcd/0x150 [ 45.897818][ T613] __dev_notify_flags+0xe6/0x250 [ 45.897998][ T613] dev_change_flags+0xec/0x160 [ 45.898172][ T613] do_setlink+0x7d6/0x21e0 [ 45.898370][ T613] __rtnl_newlink+0xaa7/0xd80 [ 45.898713][ T613] rtnl_newlink+0x63/0xa0 [ 45.898901][ T613] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 45.899099][ T613] netlink_rcv_skb+0x130/0x360 [ 45.899457][ T613] netlink_unicast+0x449/0x710 [ 45.899638][ T613] netlink_sendmsg+0x723/0xbe0 [ 45.899830][ T613] ____sys_sendmsg+0x7b2/0xa10 [ 45.900028][ T613] ___sys_sendmsg+0xee/0x170 [ 45.900323][ T613] __sys_sendmsg+0xcd/0x170 [ 45.900507][ T613] do_syscall_64+0xc6/0x1e0 [ 45.900705][ T613] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.900933][ T613] INITIAL READ USE at: [ 45.901055][ T613] __lock_acquire+0x797/0x1570 [ 45.901246][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.901438][ T613] _raw_read_lock_bh+0x44/0x80 [ 45.901720][ T613] inet6_fill_ifla6_attrs+0x516/0x740 [ 45.901950][ T613] inet6_fill_link_af+0x5e/0xe0 [ 45.902141][ T613] rtnl_fill_ifinfo+0x1612/0x29e0 [ 45.902443][ T613] rtmsg_ifinfo_build_skb+0x13c/0x240 [ 45.902664][ T613] rtmsg_ifinfo_event.part.0+0x2d/0x120 [ 45.902903][ T613] rtmsg_ifinfo+0x5b/0xa0 [ 45.903274][ T613] register_netdevice+0x1177/0x1690 [ 45.903594][ T613] register_netdev+0x20/0x40 [ 45.903863][ T613] sit_init_net+0x250/0x4f0 [ 45.904136][ T613] ops_init+0x9b/0x560 [ 45.904410][ T613] register_pernet_operations+0x2db/0x710 [ 45.904735][ T613] register_pernet_device+0x2a/0x60 [ 45.905231][ T613] sit_init+0x23/0xe0 [ 45.905494][ T613] do_one_initcall+0x8d/0x1e0 [ 45.905682][ T613] do_initcalls+0x1b2/0x3e0 [ 45.905869][ T613] kernel_init_freeable+0x232/0x310 [ 45.906114][ T613] kernel_init+0x20/0x200 [ 45.906304][ T613] ret_from_fork+0x31/0x70 [ 45.906488][ T613] ret_from_fork_asm+0x1a/0x30 [ 45.906763][ T613] } [ 45.906836][ T613] ... key at: [] __key.37+0x0/0x40 [ 45.907058][ T613] [ 45.907058][ T613] the dependencies between the lock to be acquired [ 45.907060][ T613] and SOFTIRQ-irq-unsafe lock: [ 45.907522][ T613] -> (&p->alloc_lock){+.+.}-{2:2} { [ 45.907667][ T613] HARDIRQ-ON-W at: [ 45.907778][ T613] __lock_acquire+0x797/0x1570 [ 45.908064][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.908238][ T613] _raw_spin_lock+0x30/0x40 [ 45.908413][ T613] set_mems_allowed+0x1d/0x210 [ 45.908597][ T613] kernel_init_freeable+0x72/0x310 [ 45.908858][ T613] kernel_init+0x20/0x200 [ 45.909040][ T613] ret_from_fork+0x31/0x70 [ 45.909223][ T613] ret_from_fork_asm+0x1a/0x30 [ 45.909484][ T613] SOFTIRQ-ON-W at: [ 45.909588][ T613] __lock_acquire+0x797/0x1570 [ 45.909778][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.909955][ T613] _raw_spin_lock+0x30/0x40 [ 45.910224][ T613] set_mems_allowed+0x1d/0x210 [ 45.910405][ T613] kernel_init_freeable+0x72/0x310 [ 45.910587][ T613] kernel_init+0x20/0x200 [ 45.910846][ T613] ret_from_fork+0x31/0x70 [ 45.911033][ T613] ret_from_fork_asm+0x1a/0x30 [ 45.911209][ T613] INITIAL USE at: [ 45.911319][ T613] __lock_acquire+0x797/0x1570 [ 45.911574][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.911752][ T613] _raw_spin_lock+0x30/0x40 [ 45.911946][ T613] set_mems_allowed+0x1d/0x210 [ 45.912204][ T613] kernel_init_freeable+0x72/0x310 [ 45.912549][ T613] kernel_init+0x20/0x200 [ 45.912728][ T613] ret_from_fork+0x31/0x70 [ 45.912905][ T613] ret_from_fork_asm+0x1a/0x30 [ 45.913171][ T613] } [ 45.913247][ T613] ... key at: [] __key.387+0x0/0x40 [ 45.913467][ T613] ... acquired at: [ 45.913585][ T613] check_prev_add+0x194/0xce0 [ 45.913818][ T613] validate_chain+0x71d/0x9b0 [ 45.913963][ T613] __lock_acquire+0xaf0/0x1570 [ 45.914114][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.914252][ T613] _raw_spin_lock+0x30/0x40 [ 45.914393][ T613] __get_task_comm+0x27/0x70 [ 45.914612][ T613] ref_tracker_alloc+0x2ee/0x490 [ 45.914755][ T613] netdev_get_by_index+0x5e/0x80 [ 45.914913][ T613] fib6_nh_init+0x3d8/0x15b0 [ 45.915062][ T613] ip6_route_info_create+0xf18/0x17d0 [ 45.915293][ T613] addrconf_f6i_alloc+0x265/0x560 [ 45.915431][ T613] __ipv6_dev_ac_inc+0x25f/0xb10 [ 45.915574][ T613] addrconf_join_anycast+0x1c0/0x220 [ 45.915712][ T613] dev_forward_change+0x2a6/0x7b0 [ 45.915851][ T613] addrconf_fixup_forwarding+0x23f/0x460 [ 45.916061][ T613] addrconf_sysctl_forward+0x212/0x2b0 [ 45.916278][ T613] proc_sys_call_handler+0x403/0x5e0 [ 45.916497][ T613] vfs_write+0x9e5/0x10a0 [ 45.916873][ T613] ksys_write+0xf5/0x1e0 [ 45.917058][ T613] do_syscall_64+0xc6/0x1e0 [ 45.917196][ T613] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.917372][ T613] [ 45.917444][ T613] [ 45.917444][ T613] stack backtrace: [ 45.917702][ T613] CPU: 3 PID: 613 Comm: sysctl Not tainted 6.9.0-rc1-virtme #1 [ 45.917919][ T613] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 45.918320][ T613] Call Trace: [ 45.918431][ T613] [ 45.918504][ T613] dump_stack_lvl+0x82/0xd0 [ 45.918652][ T613] print_bad_irq_dependency+0x957/0xd40 [ 45.918794][ T613] ? hlock_class+0x4e/0x130 [ 45.919043][ T613] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 45.919219][ T613] ? __pfx_usage_skip+0x10/0x10 [ 45.919367][ T613] ? __bfs+0x246/0x650 [ 45.919472][ T613] ? __pfx_usage_match+0x10/0x10 [ 45.919695][ T613] check_irq_usage+0x596/0x850 [ 45.919856][ T613] ? __pfx_check_irq_usage+0x10/0x10 [ 45.920012][ T613] ? __bfs+0x246/0x650 [ 45.920123][ T613] ? __pfx_hlock_conflict+0x10/0x10 [ 45.920270][ T613] ? check_path.constprop.0+0x24/0x50 [ 45.920496][ T613] ? check_noncircular+0x14c/0x3e0 [ 45.920633][ T613] ? __pfx_check_noncircular+0x10/0x10 [ 45.920778][ T613] ? check_prev_add+0x194/0xce0 [ 45.920920][ T613] check_prev_add+0x194/0xce0 [ 45.921148][ T613] ? validate_chain+0x130/0x9b0 [ 45.921287][ T613] validate_chain+0x71d/0x9b0 [ 45.921426][ T613] ? mark_lock+0x38/0x3e0 [ 45.921535][ T613] ? __pfx_validate_chain+0x10/0x10 [ 45.921756][ T613] ? hlock_class+0x4e/0x130 [ 45.921900][ T613] ? mark_lock+0x38/0x3e0 [ 45.922017][ T613] __lock_acquire+0xaf0/0x1570 [ 45.922157][ T613] lock_acquire.part.0+0xeb/0x330 [ 45.922293][ T613] ? __get_task_comm+0x27/0x70 [ 45.922593][ T613] ? mark_lock+0x38/0x3e0 [ 45.922697][ T613] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 45.922846][ T613] ? trace_lock_acquire+0x135/0x1c0 [ 45.922994][ T613] ? __get_task_comm+0x27/0x70 [ 45.923221][ T613] ? lock_acquire+0x32/0xc0 [ 45.923366][ T613] ? __get_task_comm+0x27/0x70 [ 45.923506][ T613] _raw_spin_lock+0x30/0x40 [ 45.923646][ T613] ? __get_task_comm+0x27/0x70 [ 45.923792][ T613] __get_task_comm+0x27/0x70 [ 45.923931][ T613] ref_tracker_alloc+0x2ee/0x490 [ 45.924076][ T613] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 45.924218][ T613] ? dev_get_by_index+0x177/0x270 [ 45.924360][ T613] ? netdev_get_by_index+0x5e/0x80 [ 45.924583][ T613] ? fib6_nh_init+0x3d8/0x15b0 [ 45.924723][ T613] ? ip6_route_info_create+0xf18/0x17d0 [ 45.924864][ T613] ? addrconf_f6i_alloc+0x265/0x560 [ 45.925007][ T613] ? __ipv6_dev_ac_inc+0x25f/0xb10 [ 45.925240][ T613] ? addrconf_join_anycast+0x1c0/0x220 [ 45.925377][ T613] ? dev_forward_change+0x2a6/0x7b0 [ 45.925517][ T613] ? addrconf_fixup_forwarding+0x23f/0x460 [ 45.925690][ T613] ? addrconf_sysctl_forward+0x212/0x2b0 [ 45.925828][ T613] ? proc_sys_call_handler+0x403/0x5e0 [ 45.925973][ T613] ? vfs_write+0x9e5/0x10a0 [ 45.926117][ T613] ? ksys_write+0xf5/0x1e0 [ 45.926253][ T613] ? do_syscall_64+0xc6/0x1e0 [ 45.926470][ T613] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.926647][ T613] ? dev_get_by_index+0x177/0x270 [ 45.926789][ T613] netdev_get_by_index+0x5e/0x80 [ 45.926930][ T613] fib6_nh_init+0x3d8/0x15b0 [ 45.927159][ T613] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 45.927329][ T613] ? __pfx_fib6_nh_init+0x10/0x10 [ 45.927472][ T613] ? kasan_save_track+0x14/0x30 [ 45.927611][ T613] ? __kasan_kmalloc+0x7f/0x90 [ 45.927753][ T613] ? __kmalloc+0x1d7/0x3c0 [ 45.927903][ T613] ? fib6_get_table+0x116/0x290 [ 45.928067][ T613] ip6_route_info_create+0xf18/0x17d0 [ 45.928211][ T613] ? __lock_release+0x103/0x460 [ 45.928355][ T613] ? __pfx_ip6_route_info_create+0x10/0x10 [ 45.928613][ T613] ? addrconf_f6i_alloc+0x12d/0x560 [ 45.928750][ T613] addrconf_f6i_alloc+0x265/0x560 [ 45.928892][ T613] ? __pfx_addrconf_f6i_alloc+0x10/0x10 [ 45.929041][ T613] ? do_raw_write_lock+0x122/0x3b0 [ 45.929269][ T613] ? __pfx_do_raw_write_lock+0x10/0x10 [ 45.929412][ T613] ? lock_acquire+0x32/0xc0 [ 45.929559][ T613] __ipv6_dev_ac_inc+0x25f/0xb10 [ 45.929703][ T613] addrconf_join_anycast+0x1c0/0x220 [ 45.929854][ T613] ? mark_lock+0x38/0x3e0 [ 45.929963][ T613] ? __pfx_addrconf_join_anycast+0x10/0x10 [ 45.930140][ T613] ? lockdep_hardirqs_on_prepare.part.0+0x1af/0x370 [ 45.930313][ T613] dev_forward_change+0x2a6/0x7b0 [ 45.930540][ T613] ? __pfx_dev_forward_change+0x10/0x10 [ 45.930684][ T613] addrconf_fixup_forwarding+0x23f/0x460 [ 45.930826][ T613] addrconf_sysctl_forward+0x212/0x2b0 [ 45.930977][ T613] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 45.931242][ T613] ? __pfx_addrconf_sysctl_forward+0x10/0x10 [ 45.931412][ T613] ? trace_kmalloc+0x2a/0xe0 [ 45.931551][ T613] ? __kmalloc_node+0x220/0x400 [ 45.931686][ T613] ? proc_sys_call_handler+0x30b/0x5e0 [ 45.931825][ T613] proc_sys_call_handler+0x403/0x5e0 [ 45.931969][ T613] ? __pfx_proc_sys_call_handler+0x10/0x10 [ 45.932181][ T613] ? __lock_acquire+0xaf0/0x1570 [ 45.932319][ T613] vfs_write+0x9e5/0x10a0 [ 45.932507][ T613] ? do_user_addr_fault+0x449/0xbe0 [ 45.932643][ T613] ? __pfx_vfs_write+0x10/0x10 [ 45.932780][ T613] ? find_held_lock+0x2c/0x110 [ 45.932919][ T613] ? __pfx___lock_release+0x10/0x10 [ 45.933231][ T613] ? __fget_light+0x53/0x1e0 [ 45.933375][ T613] ksys_write+0xf5/0x1e0 [ 45.933479][ T613] ? __pfx_ksys_write+0x10/0x10 [ 45.933618][ T613] ? do_user_addr_fault+0x4bd/0xbe0 [ 45.933754][ T613] do_syscall_64+0xc6/0x1e0 [ 45.933894][ T613] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 45.934070][ T613] RIP: 0033:0x7f438d6d4957 [ 45.934221][ T613] 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 [ 45.934794][ T613] RSP: 002b:00007ffe6ea27b18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 45.935016][ T613] RAX: ffffffffffffffda RBX: 00005593da006360 RCX: 00007f438d6d4957 [ 45.935311][ T613] RDX: 0000000000000002 RSI: 00005593da0063a0 RDI: 0000000000000005 [ 45.935519][ T613] RBP: 00005593da0084d0 R08: 0000000000000003 R09: 0000000000000077 [ 45.935731][ T613] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 [ 45.935942][ T613] R13: 0000000000000002 R14: 0000000000000002 R15: 00007f438d78b9c0 [ 45.936161][ T613] WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr