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@subi:~# lsmod | grep xhci
root@subi:~# modprobe xhci_hcd
root@subi:~# lsmod | grep xhci
The weird thing is, that in dmesg xhci seems to be loaded:
root@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
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