Additional info: reporter: libreport-2.2.2 WARNING: CPU: 7 PID: 57 at lib/list_debug.c:62 __list_del_entry+0x82/0xd0() list_del corruption. next->prev should be ffff88044754ad38, but was (null) Modules linked in: cpufreq_stats ccm rfcomm ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_CHECKSUM iptable_mangle tun bridge stp llc ip6table_filter ip6_tables ebtable_nat ebtables bnep nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iTCO_wdt dell_wmi iTCO_vendor_support sparse_keymap dell_laptop dcdbas vfat fat x86_pkg_temp_thermal arc4 coretemp snd_hda_codec_hdmi kvm_intel kvm snd_hda_codec_conexant snd_hda_codec_generic iwldvm joydev mac80211 microcode i2c_i801 serio_raw snd_hda_intel snd_usb_audio snd_hda_controller btusb snd_usbmidi_lib uvcvideo snd_hda_codec bluetooth snd_rawmidi videobuf2_vmalloc snd_hwdep videobuf2_memops iwlwifi snd_seq videobuf2_core snd_seq_device videodev cfg80211 snd_pcm media rfkill mei_me snd_timer mei lpc_ich snd shpchp soundcore mfd_core wmi nfsd auth_rpcgss nfs_acl lockd sunrpc btrfs xor raid6_pq dm_crypt radeon i915 crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper ghash_clmulni_intel ttm drm r8169 i2c_core mii video CPU: 7 PID: 57 Comm: khubd Not tainted 3.15.3-200.fc20.x86_64 #1 Hardware name: Dell Inc. Vostro 3560/0C05GV, BIOS A16 11/25/2013 0000000000000000 00000000571dc647 ffff88044843f7b0 ffffffff816ef1f2 ffff88044843f7f8 ffff88044843f7e8 ffffffff8108931d ffff88044754ad38 ffff88044754ad1c 0000000000000001 ffff88003f96f000 000000000000000f Call Trace: [<ffffffff816ef1f2>] dump_stack+0x45/0x56 [<ffffffff8108931d>] warn_slowpath_common+0x7d/0xa0 [<ffffffff8108939c>] warn_slowpath_fmt+0x5c/0x80 [<ffffffff81366472>] __list_del_entry+0x82/0xd0 [<ffffffff8150fcd5>] xhci_drop_ep_from_interval_table+0x95/0x1b0 [<ffffffff8150ff45>] xhci_reserve_bandwidth+0xe5/0x740 [<ffffffff810b6c95>] ? perf_trace_sched_wakeup_template+0xf5/0x120 [<ffffffff810ba142>] ? ttwu_do_wakeup+0xb2/0xc0 [<ffffffff810ba142>] ? ttwu_do_wakeup+0xb2/0xc0 [<ffffffff813568f3>] ? number.isra.2+0x323/0x360 [<ffffffff8122e103>] ? ep_poll_callback+0xf3/0x160 [<ffffffff815cf69d>] ? __alloc_skb+0x8d/0x2d0 [<ffffffff81521e1d>] ? xhci_dbg_trace+0x6d/0xb0 [<ffffffff815107c7>] xhci_configure_endpoint+0x227/0x610 [<ffffffff81511488>] xhci_check_bandwidth+0xe8/0x290 [<ffffffff814dde75>] usb_hcd_alloc_bandwidth+0x1d5/0x340 [<ffffffff814e0efa>] usb_disable_device+0x1aa/0x290 [<ffffffff814d54ed>] usb_disconnect+0xad/0x1d0 [<ffffffff814d54c9>] usb_disconnect+0x89/0x1d0 [<ffffffff814d891a>] hub_thread+0x66a/0x1760 [<ffffffff8101bd59>] ? sched_clock+0x9/0x10 [<ffffffff816f2723>] ? __schedule+0x2c3/0x730 [<ffffffff810d0310>] ? abort_exclusive_wait+0xb0/0xb0 [<ffffffff814d82b0>] ? usb_reset_device+0x1c0/0x1c0 [<ffffffff810ac4f8>] kthread+0xd8/0xf0 [<ffffffff810ac420>] ? insert_kthread_work+0x40/0x40 [<ffffffff816ff17c>] ret_from_fork+0x7c/0xb0 [<ffffffff810ac420>] ? insert_kthread_work+0x40/0x40
Created attachment 916193 [details] File: dmesg
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs. Fedora 20 has now been rebased to 3.17.2-200.fc20. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21. If you experience different issues, please open a new bug report for those.
This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 3 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.