I just tested it using 2.6.38-rc5-git6 built myself on Ubuntu 10.10
(not the latest but damn close) and things didn't seem to tank like
they used to but they are still only transferring at about 5MB/sec
after a bit..  Now after a fresh reboot I'm getting about 9-10MB/sec.
I finally booted into windows just to test this out an it was never
seeing under ~13MB/sec.  But I didn't test long as there were millions
of updates wanting to install since the last time I used it.

Anyway I'll run like this for a few days and report back...

Further information:
Laptop Model: Sony Vaio VPC-Z12CGX/x
Wireless card: 02:00.0 Network controller: Intel Corporation Centrino
Advanced-N 6200 (rev 35)
cat /etc/issue: Ubuntu 10.10 \n \l
uname -r: 2.6.38-rc5-git6
If anyone wants anything else within reason just ask.

~Brett

On Sun, Feb 27, 2011 at 7:46 PM, Karl Hegbloom <karl.hegbl...@gmail.com> wrote:
> I have an Intel PRO/Wireless 4965AGN Mini-PCI Express in my laptop, and
> when I comment off the line that disables N wifi, and connect to 5GHz N,
> it works just fine, at 270 Mb/s. I stressed it hard for 15 minutes or
> longer, just to be sure. If it stops working after a number of hours,
> I'll post another comment.
>
> As mentioned in comment #27, I think that Linux Kernel commit
> 1c3a1973b2d7c46c886d243367dcc5988a4ef704 may have been what fixed the
> problem.
>
> I did not have an 802.11n capable router until fairly recently, so I
> don't know if it used to work or if it had the bug before the disable-n
> thing was put in there.
>
> --
> You received this bug notification because you are a direct subscriber
> of the bug.
> https://bugs.launchpad.net/bugs/630748
>
> Title:
>  iwlagn degrades quickly during normal wifi session
>
> Status in The Linux Kernel:
>  Confirmed
> Status in Release Notes for Ubuntu:
>  Fix Released
> Status in “linux-firmware” package in Ubuntu:
>  Confirmed
> Status in “module-init-tools” package in Ubuntu:
>  Fix Released
> Status in “linux-firmware” source package in Maverick:
>  Confirmed
> Status in “module-init-tools” source package in Maverick:
>  Fix Released
> Status in “linux-firmware” source package in Natty:
>  Confirmed
> Status in “module-init-tools” source package in Natty:
>  Fix Released
>
> Bug description:
>  I recently upgraded my lucid laptop (thinkpad X200s) to maverick.  I
>  found after the reboot that my wireless degrades after about 8 hours
>  of ordinary use.  I had 45% packet loss direct to my WAP, and this was
>  easily cleared up by doing "modprobe -r iwlagn; modprobe iwlagn" as
>  root.
>
>  I'd not be so quick to file this except that Paul Collins told me that
>  he'd seen the same behavior from upstream 2.6.35.
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 10.10
>  Package: linux-image-2.6.35-19-generic 2.6.35-19.28
>  Regression: Yes
>  Reproducible: Yes
>  ProcVersionSignature: Ubuntu 2.6.35-19.28-generic 2.6.35.3
>  Uname: Linux 2.6.35-19-generic x86_64
>  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
>  Architecture: amd64
>  ArecordDevices:
>   **** List of CAPTURE Hardware Devices ****
>   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
>     Subdevices: 1/1
>     Subdevice #0: subdevice #0
>  AudioDevicesInUse:
>   USER        PID ACCESS COMMAND
>   /dev/snd/controlC0:  nick       2188 F.... pulseaudio
>  CRDA: Error: [Errno 2] No such file or directory
>  Card0.Amixer.info:
>   Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 47'
>     Mixer name : 'Conexant CX20561 (Hermosa)'
>     Components : 'HDA:14f15051,17aa20ff,00100000'
>     Controls      : 14
>     Simple ctrls  : 7
>  Card29.Amixer.info:
>   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 
> 7XHT22WW-1.04'
>     Mixer name : 'ThinkPad EC 7XHT22WW-1.04'
>     Components : ''
>     Controls      : 1
>     Simple ctrls  : 1
>  Card29.Amixer.values:
>   Simple mixer control 'Console',0
>     Capabilities: pswitch pswitch-joined penum
>     Playback channels: Mono
>     Mono: Playback [on]
>  Date: Sun Sep  5 11:24:24 2010
>  EcryptfsInUse: Yes
>  HibernationDevice: RESUME=UUID=093be503-d248-45fa-a7fe-77cdd35c0f5a
>  MachineType: LENOVO 7465CTO
>  ProcCmdLine: root=UUID=5237fceb-23d0-412d-84d9-b8f8b3bf28af ro quiet splash
>  ProcEnviron:
>   LC_COLLATE=C
>   PATH=(custom, user)
>   LANG=en_US.UTF-8
>   SHELL=/bin/bash
>  RelatedPackageVersions: linux-firmware 1.38
>  SourcePackage: linux
>  WpaSupplicantLog:
>
>  dmi.bios.date: 06/25/2009
>  dmi.bios.vendor: LENOVO
>  dmi.bios.version: 6DET55WW (3.05 )
>  dmi.board.name: 7465CTO
>  dmi.board.vendor: LENOVO
>  dmi.board.version: Not Available
>  dmi.chassis.asset.tag: No Asset Information
>  dmi.chassis.type: 10
>  dmi.chassis.vendor: LENOVO
>  dmi.chassis.version: Not Available
>  dmi.modalias: 
> dmi:bvnLENOVO:bvr6DET55WW(3.05):bd06/25/2009:svnLENOVO:pn7465CTO:pvrThinkPadX200s:rvnLENOVO:rn7465CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
>  dmi.product.name: 7465CTO
>  dmi.product.version: ThinkPad X200s
>  dmi.sys.vendor: LENOVO
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/linux/+bug/630748/+subscribe
>

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https://bugs.launchpad.net/bugs/630748

Title:
  iwlagn degrades quickly during normal wifi session

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