Additional info:
reporter:       libreport-2.1.7
WARNING: at lib/list_debug.c:36 __list_add+0x8a/0xc0()
Hardware name: Z87-D3HP
list_add double add: new=ffff880438a3e960, prev=ffff880438a3e960, next=ffff8804394adc68.
Modules linked in: ip6table_nat bluetooth nf_nat_ipv6 ip6table_mangle ip6t_REJECT rfkill nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat_ipv4 nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter ebtables ip6table_filter ip6_tables joydev acpi_cpufreq cx18_alsa mxl5005s mperf coretemp kvm_intel s5h1409 tuner_simple tuner_types snd_hda_codec_realtek cs5345 snd_hda_codec_hdmi snd_hda_intel snd_hda_codec tuner kvm snd_oxygen snd_oxygen_lib snd_mpu401_uart snd_rawmidi snd_hwdep snd_seq snd_seq_device raid1 snd_pcm snd_page_alloc snd_timer e1000e crc32_pclmul cx18 snd crc32c_intel videobuf_vmalloc tveeprom cx2341x videobuf_core dvb_core v4l2_common videodev iTCO_wdt iTCO_vendor_support ghash_clmulni_intel mei lpc_ich ptp microcode mfd_core pps_core i2c_i801 vfat fat soundcore shpchp media serio_raw uinput usb_storage nouveau i915 mxm_wmi wmi ttm i2c_algo_bit drm_kms_helper drm i2c_core video
Pid: 34, comm: khubd Not tainted 3.9.5-301.fc19.x86_64 #1
Call Trace:
 [<ffffffff81306b00>] ? __list_add+0x70/0xc0
 [<ffffffff8105cc26>] warn_slowpath_common+0x66/0x80
 [<ffffffff8105cc8c>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffff81306b1a>] __list_add+0x8a/0xc0
 [<ffffffff81489e08>] xhci_configure_endpoint+0xb8/0x5e0
 [<ffffffff8148a836>] xhci_change_max_exit_latency+0xc6/0x120
 [<ffffffff8148c50f>] xhci_enable_usb3_lpm_timeout+0xbf/0x300
 [<ffffffff81455d6a>] usb_enable_link_state+0x1ba/0x310
 [<ffffffff81455f51>] usb_enable_lpm+0x91/0xa0
 [<ffffffff81455f8c>] usb_unlocked_enable_lpm+0x2c/0x40
 [<ffffffff81459db3>] usb_port_resume+0x303/0x600
 [<ffffffff8146d465>] generic_resume+0x15/0x30
 [<ffffffff814644a7>] usb_resume_both+0x107/0x150
 [<ffffffff814654da>] usb_runtime_resume+0x1a/0x20
 [<ffffffff813f05c0>] __rpm_callback+0x30/0x70
 [<ffffffff813f0624>] rpm_callback+0x24/0x80
 [<ffffffff813f1586>] rpm_resume+0x476/0x670
 [<ffffffff81642d89>] ? schedule_timeout+0x179/0x2c0
 [<ffffffff813f17cf>] __pm_runtime_resume+0x4f/0x80
 [<ffffffff81464b10>] usb_autoresume_device+0x20/0x50
 [<ffffffff814560d2>] usb_remote_wakeup.part.29+0x22/0x60
 [<ffffffff816431d2>] ? mutex_lock+0x12/0x30
 [<ffffffff8145b2ad>] hub_thread+0x10ad/0x1710
 [<ffffffff81080fa0>] ? wake_up_bit+0x30/0x30
 [<ffffffff8145a200>] ? hub_port_debounce+0x130/0x130
 [<ffffffff810801f0>] kthread+0xc0/0xd0
 [<ffffffff81080130>] ? insert_kthread_work+0x40/0x40
 [<ffffffff8164e6ec>] ret_from_fork+0x7c/0xb0
 [<ffffffff81080130>] ? insert_kthread_work+0x40/0x40