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Old 11-11-2011, 09:26 PM
Jonathan Nieder
 
Default Bug#648477: ath9k wireless: frequent connection drops (TKIP MIC failure)

Hi Christoph,

Christoph Wiedemann wrote:

> I observe frequent (1 per minute) connection drops with a new SONY VAIO
> notebook.
[...]
> 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

Thanks. There have been some AR9485 fixes upstream recently. Could
you test v3.1 from experimental?

If that fails, please report it upstream to
ath9k-devel@lists.ath9k.org, cc-ing linux-wireless@vger.kernel.org and
either me or this bug log so we can track it.



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Old 11-12-2011, 10:19 AM
Christoph Wiedemann
 
Default Bug#648477: ath9k wireless: frequent connection drops (TKIP MIC failure)

On 11/11/11 23:26, Jonathan Nieder wrote:

Hi Christoph,

Christoph Wiedemann wrote:


I observe frequent (1 per minute) connection drops with a new SONY VAIO
notebook.

[...]

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

Thanks. There have been some AR9485 fixes upstream recently. Could
you test v3.1 from experimental?

If that fails, please report it upstream to
ath9k-devel@lists.ath9k.org, cc-ing linux-wireless@vger.kernel.org and
either me or this bug log so we can track it.

Hi Jonathan,

linux-image-3.1.0-1-amd64 indeed seems to fix the problem. I tested for
half an hour now without any connection drop issues. Thanks and sorry
for bothering you...


Best Regards
Christoph



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Old 11-12-2011, 11:21 AM
Jonathan Nieder
 
Default Bug#648477: ath9k wireless: frequent connection drops (TKIP MIC failure)

Christoph Wiedemann wrote:

> Tried it, but it looks like 2.6.32-39 doesn't recognize the chip

Thanks. I should have remembered; sorry to waste your time.

(So I don't forget: commits squeeze is missing include

- v2.6.38-rc1~476^2~169^2^2~53 (ath9k_hw: Define hw version macros
for AR9485, 2010-12-06) .. v2.6.38-rc1~476^2~169^2^2~28 (ath9k: Add
device id of AR9485 to pci table, 2010-12-06)

- [v2.6.38-rc1~476^2~169^2^2~22 (ath9k_htc: Fix panic on FW download
failure, 2010-12-07) doesn't seem to be related but should probably
also go in the stable tree]

- v2.6.38-rc1~476^2~14^2~3^2~62 (ath9k_hw: Fix bug in eeprom data
length validation for AR9485, 2010-12-21)

- v2.6.39-rc1~468^2~417^2~42 (ath9k: Fix a PLL hang issue observed
with AR9485, 2011-01-27) .. v2.6.39-rc1~468^2~417^2~39 (ath9k_hw:
Update PMU setting to improve ripple issue for AR9485, 2011-01-27)

- v2.6.39-rc1~468^2~25^2^2~170 (ath9k_hw: Updates for AR9485 1.1
chipsets, 2011-02-18) [wow, is the commit message unhelpful]
and some other commits from the same merge

... and so on. Grepping for AR9485 and for ath9k_hw should hopefully
find everything.)



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Old 11-13-2011, 02:06 PM
Jonathan Nieder
 
Default Bug#648477: ath9k wireless: frequent connection drops (TKIP MIC failure)

Hi Mohammed,

Mohammed Shafi wrote:

> installing latest compat wireless will helps us to know whether this
> issue persists in
> latest kernel tree

No need. Christoph tried v3.1 and found that it was fixed.

Thanks for looking it over,
Jonathan



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Old 11-13-2011, 02:17 PM
Mohammed Shafi
 
Default Bug#648477: ath9k wireless: frequent connection drops (TKIP MIC failure)

On Sun, Nov 13, 2011 at 8:36 PM, Jonathan Nieder <jrnieder@gmail.com> wrote:
> Hi Mohammed,

Hi Jonathan,

>
> Mohammed Shafi wrote:
>
>> installing latest compat wireless *will helps us to know whether this
>> issue persists in
>> latest kernel tree
>
> No need. *Christoph tried v3.1 and found that it was fixed.

thanks for the info, true i cannot recreate it with my 3.2.0-rc1-wl+
(wireless-testing tree).
+ ath9k devel list

>
> Thanks for looking it over,
> Jonathan
>



--
shafi



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