Bug#659979: [3.1 -> 3.2.4 regression] ath9k AR9285: Excessive packet loss

[Jonathan Nieder <jrnieder@gmail.com>]

Hi Anthony,

Anthony DeRobertis wrote:

> Under 3.1, the wirless works fine (0% packet loss). Under 3.2, ping
> shows 25% packet loss pinging the local gateway. This is repeatable;
> each time I boot 3.1, it works, each time I boot 3.2 it doesn't. I have
> tried each immediately after the other. Several times over.

Thanks.  Are you using WPA or WEP?  (I'm guessing WPA.)

There have been some changes upstream recently, so please test Linus's
"master" or v3.3-rc4 or newer.  It works like this:

0. Prerequisites:
 apt-get install git build-essential

1. Get the source:
 git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
 cd linux

   Or, if you already have a kernel tree, update it:
 cd linux
 git fetch origin

2. Make sure v3.2 reproduces the bug:
 git checkout v3.2
 cp /boot/config-$(uname -r) .config; # current configuration
 make localmodconfig; # optional: minimize configuration
 make deb-pkg; # optionally with -j<num> for parallel build
 dpkg -i ../<name of package>
 reboot

3. Try "master":
 git checkout origin/master
 make silentoldconfig; # reuse configuration
 make deb-pkg; # maybe with -j4
 dpkg -i ../<name of package>
 reboot

Hope that helps,
Jonathan