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[Launchpad Bug Tracker <565892@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/565892

Title:
  ath5k driver (AR2413): dropped packets, high latency

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Using the ath5k driver (AR2413 chip) on the lucid kernel I get high
  latencies and dropped packets. eg. Web pages load slowly if at all. I
  believe it is related to this bug in fedora:
  https://bugzilla.redhat.com/show_bug.cgi?id=506372

  I tried installing linux-backports-modules-wireless-lucid-generic
  (linux-backports-modules-wireless-2.6.32-21-generic at the time of
  this report) and also tried loading ath5k with:

  modprobe ath5k nohwcrypt=1
  AND
  modprobe ath5k nohwcrypt=0

  Neither of these had any effect on the problem. However, installing the 2.6.33 kernel from the mainline ppa fixes the problem completely!
  http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.33/

  I will attach the results of pinging my router under both the 2.6.32
  and 2.6.33 kernels for proof of the fix.

  A backported patch for the lucid kernel would be great! :-)

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: linux-image-2.6.32-21-generic 2.6.32-21.32
  Regression: No
  Reproducible: Yes
  ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-21-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  scottl     1559 F.... kmix
   /dev/snd/controlC0:  scottl     1559 F.... kmix
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xe9300000 irq 22'
     Mixer name	: 'Realtek ALC889A'
     Components	: 'HDA:10ec0885,1458a002,00100101'
     Controls      : 43
     Simple ctrls  : 24
  Card1.Amixer.info:
   Card hw:1 'HDMI'/'HDA ATI HDMI at 0xe5010000 irq 17'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100100'
     Controls      : 4
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [off]
  Date: Sun Apr 18 19:11:48 2010
  HibernationDevice: RESUME=UUID=3d5ade3c-5b98-4b53-8040-51f5e201bc40
  InstallationMedia: Kubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100406)
  MachineType: Gigabyte Technology Co., Ltd. EP45-DS3
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=48631c15-5a8c-4695-8ef0-a258637d1b0b ro quiet splash
  ProcEnviron:
   SHELL=/bin/bash
   LANG=en_AU.UTF-8
   LANGUAGE=
  RelatedPackageVersions: linux-firmware 1.34
  SourcePackage: linux
  dmi.bios.date: 07/23/2008
  dmi.bios.vendor: Award Software International, Inc.
  dmi.bios.version: F7
  dmi.board.name: EP45-DS3
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF7:bd07/23/2008:svnGigabyteTechnologyCo.,Ltd.:pnEP45-DS3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEP45-DS3:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
  dmi.product.name: EP45-DS3
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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