Ubuntu
linux package

WLAN (ath9k) very slow since linux 2.6.32-25

Bug #655118 reported by Franz Hoffmann on 2010-10-05

This bug affects 4 people

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

Bug Description

Package:
linux-image-2.6.32-25-generic

Description:
Since the update from 2.6.32-24, the network is very slow.

To define "very slow":
I tested the time for donwloading an image from flickr, using "time wget ..."
- 2.6.32-24: 2-3 seconds
- 2.6.32-25: 30-45 seconds, three out of five tests failed completely.

I tested listening to radio streams:
- with 2.6.32.24, no problem
- with 2.6.32-25, radio streams stop after a few seconds

Hardware:
EeePc 1005HA
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)

Software:
Ubuntu 10.04.1 LTS
Linux EeePC 2.6.32-24-generic #43-Ubuntu SMP Thu Sep 16 14:17:33 UTC 2010 i686 GNU/Linux

The problem is not related to DNS timeouts.
The can be reproduced every time I boot the new kernel.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-25-generic 2.6.32-25.44
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-24.43-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: franz 1638 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf7db8000 irq 22'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,104383ce,00100004'
   Controls : 12
   Simple ctrls : 7
Date: Tue Oct 5 14:32:36 2010
HibernationDevice: RESUME=UUID=1a625c05-8eaf-4909-82be-d7df80c67210
MachineType: ASUSTeK Computer INC. 1005HA
ProcCmdLine: root=UUID=74e09c14-f9ae-458c-84d1-f51cbe4c3c66 ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
SourcePackage: linux
WpaSupplicantLog:

dmi.bios.date: 07/24/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0703
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 1005HA
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0703:bd07/24/2009:svnASUSTeKComputerINC.:pn1005HA:pvrx.x:rvnASUSTeKComputerINC.:rn1005HA:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x:
dmi.product.name: 1005HA
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.

Tags:

Revision history for this message

Franz Hoffmann (frh) wrote on 2010-10-05:

AlsaDevices.txt Edit (403 bytes, text/plain; charset="utf-8")
BootDmesg.txt Edit (42.0 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (257 bytes, text/plain; charset="utf-8")
Card0.Amixer.values.txt Edit (1.6 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.0.txt Edit (8.1 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (4.2 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.3 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (520 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (11.0 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (438 bytes, text/plain; charset="utf-8")
PciMultimedia.txt Edit (612 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.4 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.5 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (121 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (108.4 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (233.5 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (280.5 KiB, text/plain; charset="utf-8")

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

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

Revision history for this message

penalvch (penalvch) wrote on 2012-03-26:

Frank Hoffman, thank you for reporting this and helping make Ubuntu better. This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? 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 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 . 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. Please let us know your results.

Thanks in advance.

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

Revision history for this message

Franz Hoffmann (frh) wrote on 2012-03-26:

I' now using linux 3.0.0.16.19, and the problem is long gone.

Revision history for this message

penalvch (penalvch) wrote on 2012-03-26:

Franz Hoffmann, this bug report is being closed due to your last comment regarding this being fixed with an update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.

Changed in linux (Ubuntu):
status:	Incomplete → Invalid

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WLAN (ath9k) very slow since linux 2.6.32-25

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