[Bug 664877] [NEW] Kernel causes extremely slow/sluggish response (CPU seems to be pegged)

[Kyle]

Public bug reported:

Initially I performed an update from 10.04 to 10.10 and found the new
kernel to cause my system to be so slow it became unusable (this problem
went away when I selected the previous 10.04 kernel at the Grub menu). I
decided to perform a clean-install, assuming the upgrade had gone wrong.
The clean install still resulted in the same behavior. I am therefore
assuming this has something to do with the kernel (though I could be
wrong).

I have the system monitor gnome applet running and it tells me that
there is something going on that is taking a large amount of CPU
resources. When I run top or try to find out what process is taking up
the CPU, nothing is reported as out-of-the-ordinary.

Everything is sluggish and leaving the computer on for hours does not
seem to make it better. Whatever is going on is persistent. I have not
detected any network activity resulting from this CPU activity. There
does seem to be some hard drive activity, but it isn't consistent use
and appears more as occasional blips.

Anything specific I can provide that will help identify the issue?

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-22-generic 2.6.35-22.35
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  klomeli    1808 F.... pulseaudio
 /dev/snd/controlC0:  klomeli    1808 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf3ff4000 irq 50'
   Mixer name	: 'Realtek ALC889'
   Components	: 'HDA:10ec0889,10de0175,00100004'
   Controls      : 40
   Simple ctrls  : 22
Card1.Amixer.info:
 Card hw:1 'Webcam'/'ASUSTeK Computer Inc. ASUS USB2.0 Webcam at usb-0000:00:1a.7-4, high speed'
   Mixer name	: 'USB Mixer'
   Components	: 'USB0458:705a'
   Controls      : 2
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 1024
   Mono: Capture 0 [0%] [18.00dB] [on]
Date: Thu Oct 21 20:40:41 2010
Frequency: Once a day.
HibernationDevice: RESUME=UUID=f25dca7a-2494-42b8-adf0-00ad47f42374
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
IwConfig:
 lo        no wireless extensions.
 
 eth0      no wireless extensions.
 
 eth1      no wireless extensions.
MachineType: OEM OEM
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=7c9839f7-c3dc-4bee-b9ba-77de2ff1248a ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:
 
SourcePackage: linux
dmi.bios.date: 01/16/2009
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: 132-BL-E758
dmi.board.vendor: EVGA
dmi.board.version: Tylersburg
dmi.chassis.type: 3
dmi.chassis.vendor: OEM
dmi.chassis.version: OEM
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd01/16/2009:svnOEM:pnOEM:pvrOEM:rvnEVGA:rn132-BL-E758:rvrTylersburg:cvnOEM:ct3:cvrOEM:
dmi.product.name: OEM
dmi.product.version: OEM
dmi.sys.vendor: OEM

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kernel-config maverick needs-upstream-testing regression-release

-- 
Kernel causes extremely slow/sluggish response (CPU seems to be pegged)
https://bugs.launchpad.net/bugs/664877
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