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-   -   Bug#648477: Bug#648477: linux-headers-3.0.0-1-amd64: ath9k wireless: frequent connection drops (TKIP MIC failure) (http://www.linux-archive.org/debian-kernel/597759-bug-648477-bug-648477-linux-headers-3-0-0-1-amd64-ath9k-wireless-frequent-connection-drops-tkip-mic-failure.html)

Mohammed Shafi 11-13-2011 01:20 PM

Bug#648477: Bug#648477: linux-headers-3.0.0-1-amd64: ath9k wireless: frequent connection drops (TKIP MIC failure)
 
On Sat, Nov 12, 2011 at 3:42 AM, Christoph Wiedemann <wiedeman@gmx.net> wrote:
> Package: linux-headers-3.0.0-1-amd64
> Version: 3.0.0-3
> Severity: important
> Tags: upstream
>
> I observe frequent (1 per minute) connection drops with a new SONY VAIO
> notebook. dmesg outputs
>
> [ 200.502509] wlan0: deauthenticated from 00:1c:28:0d:59:2a (Reason: 14)
> [ 200.513840] wlan0: deauthenticating from 00:1c:28:0d:59:2a by local choice
> (reason=14)

it indicates MIC failure and i found this might be helpful
http://comments.gmane.org/gmane.linux.kernel.wireless.general/78726
http://comments.gmane.org/gmane.linux.kernel.wireless.general/75400
and the corresponding patch in
http://marc.info/?l=linux-wireless&m=131376664522388&w=2

installing latest compat wireless will helps us to know whether this
issue persists in
latest kernel tree
http://linuxwireless.org/en/users/Download#Where_to_download_bleeding_edge


>
> The problem seems to be correlated with high bandwidth traffic (>1 MB/s).
> Thechipset is
>
> *02:00.0 Network controller [0280]: Atheros Communications Inc. AR9485 Wireless
> Network Adapter [168c:0032] (rev 01)
>
> Disabling hwcrypt as suggested in http://www.mail-archive.com/ath9k-
> devel@lists.ath9k.org/msg04221.html seems to fix the problem (it didn't re-
> occur now for some days since I changed the configuration).
>
>
>
> -- System Information:
> Debian Release: wheezy/sid
> *APT prefers testing
> *APT policy: (500, 'testing')
> Architecture: amd64 (x86_64)
>
> Kernel: Linux 3.0.0-1-amd64 (SMP w/8 CPU cores)
> Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
> Shell: /bin/sh linked to /bin/dash
>
> Versions of packages linux-headers-3.0.0-1-amd64 depends on:
> ii *gcc-4.5 * * * * * * * * * * * 4.5.3-9
> ii *linux-headers-3.0.0-1-common *3.0.0-3
> ii *linux-kbuild-3.0.0 * * * * * *3.0.0-2
>
> linux-headers-3.0.0-1-amd64 recommends no packages.
>
> linux-headers-3.0.0-1-amd64 suggests no packages.
>
> -- no debconf information
>
> _______________________________________________
> ath9k-devel mailing list
> ath9k-devel@lists.ath9k.org
> https://lists.ath9k.org/mailman/listinfo/ath9k-devel
>
>



--
shafi



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