[Bug 1320941] [NEW] xhci_hcd not loaded

[hyper_ch]

Public bug reported:

Today I just tried to copy 4 GB data onto a usb 3.0 stick. However it
took like forevery and my system load spiked to 6.0. I inquired a bit
and noticed, that xhci_hcd wasn't loaded at all:

root at subi:~# lsmod | grep xhci
root at subi:~# modprobe xhci_hcd
root at subi:~# lsmod | grep xhci

The weird thing is, that in dmesg xhci seems to be loaded:

root at subi:~# dmesg | grep xhci
[    4.534477] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    4.534484] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2
[    4.534571] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
[    4.534594] xhci_hcd 0000:00:14.0: irq 60 for MSI/MSI-X
[    4.534671] usb usb2: Manufacturer: Linux 3.15.0-031500rc2-generic xhci_hcd
[    4.535678] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    4.535684] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 3
[    4.535737] usb usb3: Manufacturer: Linux 3.15.0-031500rc2-generic xhci_hcd
[    5.149389] usb 2-2: new high-speed USB device number 2 using xhci_hcd
[    5.629433] usb 3-3: new SuperSpeed USB device number 2 using xhci_hcd
[    5.717072] usb 2-2.1: new high-speed USB device number 4 using xhci_hcd
[    5.877002] usb 2-2.2: new high-speed USB device number 5 using xhci_hcd
[    6.252828] usb 2-2.2.4: new high-speed USB device number 6 using xhci_hcd
[    6.644502] usb 2-2.2.4.2: new high-speed USB device number 7 using xhci_hcd
[   14.160712] usb 2-2.2.4.2.3: new full-speed USB device number 8 using xhci_hcd
[   14.408571] usb 2-2.2.4.2.4: new full-speed USB device number 9 using xhci_hcd

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.2
Uname: Linux 3.15.0-031500rc2-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.1
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Mon May 19 18:28:07 2014
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade trusty

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https://bugs.launchpad.net/bugs/1320941

Title:
  xhci_hcd not loaded

Status in “ubuntu-release-upgrader” package in Ubuntu:
  New

Bug description:
  Today I just tried to copy 4 GB data onto a usb 3.0 stick. However it
  took like forevery and my system load spiked to 6.0. I inquired a bit
  and noticed, that xhci_hcd wasn't loaded at all:

  root at subi:~# lsmod | grep xhci
  root at subi:~# modprobe xhci_hcd
  root at subi:~# lsmod | grep xhci

  The weird thing is, that in dmesg xhci seems to be loaded:

  root at subi:~# dmesg | grep xhci
  [    4.534477] xhci_hcd 0000:00:14.0: xHCI Host Controller
  [    4.534484] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2
  [    4.534571] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
  [    4.534594] xhci_hcd 0000:00:14.0: irq 60 for MSI/MSI-X
  [    4.534671] usb usb2: Manufacturer: Linux 3.15.0-031500rc2-generic xhci_hcd
  [    4.535678] xhci_hcd 0000:00:14.0: xHCI Host Controller
  [    4.535684] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 3
  [    4.535737] usb usb3: Manufacturer: Linux 3.15.0-031500rc2-generic xhci_hcd
  [    5.149389] usb 2-2: new high-speed USB device number 2 using xhci_hcd
  [    5.629433] usb 3-3: new SuperSpeed USB device number 2 using xhci_hcd
  [    5.717072] usb 2-2.1: new high-speed USB device number 4 using xhci_hcd
  [    5.877002] usb 2-2.2: new high-speed USB device number 5 using xhci_hcd
  [    6.252828] usb 2-2.2.4: new high-speed USB device number 6 using xhci_hcd
  [    6.644502] usb 2-2.2.4.2: new high-speed USB device number 7 using xhci_hcd
  [   14.160712] usb 2-2.2.4.2.3: new full-speed USB device number 8 using xhci_hcd
  [   14.408571] usb 2-2.2.4.2.4: new full-speed USB device number 9 using xhci_hcd

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.2
  Uname: Linux 3.15.0-031500rc2-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.1
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Mon May 19 18:28:07 2014
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: No upgrade log present (probably fresh install)

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