Ubuntu
linux package

Sometimes there is unreasonably overloaded disk usage which causes Ubuntu to slow down painfully

Bug #392062 reported by Alexandros on 2009-06-25

This bug report is a duplicate of: Bug #328232: [Jaunty][UXA]compiz.real memory leak. Edit Remove

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	New	Undecided	Unassigned

Bug Description

I have found out that sometimes the kernel makes heavy disk I/O usage, even though I am not doing any "heavy" work. This has occurred only twice. The first time this occurred was while checking for new updates and the second while playing Wormux.

Reproducibility: Random

Output of uname -a: Linux ubuntu 2.6.28-13-generic #44-Ubuntu SMP Tue Jun 2 07:57:31 UTC 2009 i686 GNU/Linux
Output of cat /proc/version_signature: Ubuntu 2.6.28-13.44-generic

Additional information: When I switch to a virtual terminal and press Alt+SysRq+E, it results in a kernel panic

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: TOSHIBA Satellite A200
Package: linux-image-2.6.28-13-generic 2.6.28-13.44
ProcCmdLine: root=UUID=32164C28164BEC03 loop=/hostname/disks/root.disk ro quiet splash
ProcEnviron:
LANG=el_GR.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-13.44-generic
SourcePackage: linux

Tags:

Revision history for this message

Alexandros (alexandros-t) wrote on 2009-06-25:

BootDmesg.txt Edit (42.8 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (1.7 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (994 bytes, text/plain; charset="utf-8")
HalComputerInfo.txt Edit (3.0 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (14.0 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.5 KiB, text/plain; charset="utf-8")

Revision history for this message

Alexandros (alexandros-t) wrote on 2009-06-25:

Output of lspci -vnvn Edit (23.5 KiB, text/plain)

Revision history for this message

Brian Murray (brian-murray) wrote on 2009-06-25:

Looking at the attachments in this bug report, I noticed that "Output of lspci -vnvn" was flagged as a patch. A patch contains changes to an Ubuntu package that will resolve a bug, since this was not one I've unchecked the patch flag for it. In the future keep in mind the definition of a patch. You can learn more about what qualifies as a patch at https://wiki.ubuntu.com/Bugs/Patches. Thanks!

Revision history for this message

Alexandros (alexandros-t) wrote on 2009-06-26:

I managed to reproduce this bug with Wormux, while a game was being loaded. However, as I had enabled Ctrl+Alt+Backspace, when I restarted X, the heavy I/O disk usage had gone, so it might be a Xorg bug.