Ubuntu
linux package

Every ten seconds the processor spikes

Bug #657187 reported by Melvin Garcia on 2010-10-09

This bug affects 3 people

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linux (Ubuntu)

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Affecting:	linux (Ubuntu)
Filed here by:	Melvin Garcia
When:	2010-10-09
Confirmed:	2011-04-06
Started work:	2012-07-25

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Status	Importance
	Undecided

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	Me

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Bug Description

Hi I installed Maverick RC on this old Compaq Presario 2226CL and found a huge problem. Every ten seconds or so the processor spikes and sound/video lag. Even after a fresh reboot with no opened apps.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-22-generic 2.6.35-22.33
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: meizy 1461 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with Cx20468-31 at irq 5'
   Mixer name : 'Conexant Cx20468-31'
   Components : 'AC97a:43585430'
   Controls : 23
   Simple ctrls : 16
Date: Sat Oct 9 00:40:29 2010
HibernationDevice: RESUME=UUID=7fda61ff-7233-4eba-807f-72b79b27fff4
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release Candidate i386 (20100928)
Lsusb:
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
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Hewlett-Packard Presario 2200 (PR304UA#ABA)
PccardctlIdent:
Socket 0:
   no product info available
PccardctlStatus:
Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=62e68fdf-7883-4a6a-9a27-1d4849659b6a ro quiet splash
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:
0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
dmi.bios.date: 11/09/2004
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.15
dmi.board.name: 3084
dmi.board.vendor: Quanta
dmi.board.version: 41.0B
dmi.chassis.type: 10
dmi.chassis.vendor: Quanta
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.15:bd11/09/2004:svnHewlett-Packard:pnPresario2200(PR304UA#ABA):pvrRev1:rvnQuanta:rn3084:rvr41.0B:cvnQuanta:ct10:cvrN/A:
dmi.product.name: Presario 2200 (PR304UA#ABA)
dmi.product.version: Rev 1
dmi.sys.vendor: Hewlett-Packard

Tags: Edit Tag help

Melvin Garcia (virtualspectre8) wrote on 2010-10-09:

These are some screens of the system monitor showing the spikes Edit (173.6 KiB, image/png)
AcpiTables.txt Edit (100.5 KiB, text/plain; charset="utf-8")
AlsaDevices.txt Edit (589 bytes, text/plain; charset="utf-8")
AplayDevices.txt Edit (323 bytes, text/plain; charset="utf-8")
ArecordDevices.txt Edit (622 bytes, text/plain; charset="utf-8")
BootDmesg.txt Edit (39.7 KiB, text/plain; charset="utf-8")
Card0.Amixer.values.txt Edit (3.7 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec97.0.ac97.0.0.txt Edit (813 bytes, text/plain; charset="utf-8")
Card0.Codecs.codec97.0.ac97.0.0.regs.txt Edit (767 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (1.8 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.8 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (519 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (11.2 KiB, text/plain; charset="utf-8")
PciMultimedia.txt Edit (759 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (532 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.0 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (82.3 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (184.9 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (323.3 KiB, text/plain; charset="utf-8")

Melvin Garcia (virtualspectre8) wrote on 2010-10-09:

I remember having the same problem on a Gateway GT5676 (AMD Phenom Quad) desktop back in the Intrepid Ibex days.

Melvin Garcia (virtualspectre8) wrote on 2010-10-12:

meizy@meizy-Presario-2200-PR304UA-ABA:~$ dmesg | tail
[ 27.222057] type=1400 audit(1286896562.433:8): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=899 comm="apparmor_parser"
[ 27.251632] type=1400 audit(1286896562.461:9): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince" pid=906 comm="apparmor_parser"
[ 27.290301] type=1400 audit(1286896562.501:10): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince-previewer" pid=906 comm="apparmor_parser"
[ 27.311545] type=1400 audit(1286896562.521:11): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince-thumbnailer" pid=906 comm="apparmor_parser"
[ 27.661329] microcode: CPU0 sig=0x6d8, pf=0x20, revision=0x20
[ 27.664796] microcode: Microcode Update Driver: v2.00 <email address hidden>, Peter Oruba
[ 27.905450] ppdev: user-space parallel port driver
[ 30.510702] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro,commit=0
[ 37.760032] eth0: no IPv6 routers present
[ 71.267186] lo: Disabled Privacy Extensions

CiaranG (ciarang) wrote on 2010-10-12:

Same here. Looking at top, the process that corresponds with the spikes is kslowd.

CiaranG (ciarang) wrote on 2010-10-12:

I think it's this: https://bugzilla.kernel.org/show_bug.cgi?id=16265

Brad Figg (brad-figg) on 2010-12-04

tags:

added: acpi-brightness

Ben Hearsum (bhearsum) wrote on 2010-12-20:

That bugs certainly sounds like what I'm hitting. Anyone know if there is a fix out there? Only happens with Nouveau drivers for me =\.

Brad Figg (brad-figg) on 2011-04-06

Changed in linux (Ubuntu):
status:	New → Confirmed

Jeremy Foshee (jeremyfoshee) on 2011-05-24

tags:

removed: regression-potential

Christopher M. Penalver (penalvch) wrote on 2012-07-25:

Melvin Garcia, thank you for reporting this and helping make Ubuntu better. Maverick reached EOL on April 10, 2012.
Please see this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We were wondering if this is still an issue in a supported release? If so, can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command in a supported release from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please do not test the kernel in the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. As well, please comment on which kernel version specifically you tested.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream', and comment as to why specifically you were unable to test it.

Please let us know your results. Thanks in advance.