[ath9k-devel] How to solve the problem of "Failed to stop TX DMA"

[Joe Qiao <Joe.Qiao@watchguard.com>]

Hi Sujith,

The version of 2014/01/17/ works stable in recent 24 hours. It prints lot of debug log, but cannot see the error log again.

Do you think the build of 2014/01/17/ include the fix? Or which stable build can be used in future?

Thanks,
-Joe

-----Original Message-----
From: ath9k-devel-bounces@lists.ath9k.org [mailto:ath9k-devel-bounces at lists.ath9k.org] On Behalf Of Joe Qiao
Sent: Thursday, January 23, 2014 4:55 PM
To: Sujith Manoharan
Cc: ath9k-devel at lists.ath9k.org; Bryan Phillippe
Subject: Re: [ath9k-devel] How to solve the problem of "Failed to stop TX DMA"

Sure. Will do and let you know the test result soon.

Thanks,
-Joe

-----Original Message-----
From: Sujith Manoharan [mailto:sujith at msujith.org]
Sent: Thursday, January 23, 2014 4:29 PM
To: Joe Qiao
Cc: ath9k-devel at lists.ath9k.org
Subject: RE: [ath9k-devel] How to solve the problem of "Failed to stop TX DMA"

Joe Qiao wrote:
> On powerpc. 
> 
> Reproduce rarely, but always can see.
> 
> My step is that,
> a). Running hostapd, stop it, and start wpa_supplicant, b). call 
> SIOCSIWSCAN via ioctl to scan and call SIOCGIWSCAN to get scanning result.
> c). stop wpa_supplicant and restart hostapd.

Can you use the latest backports release and post the kernel log when the issue happens ?

https://www.kernel.org/pub/linux/kernel/projects/backports/2014/01/17/

The ath9k-debug config can be used in backports:
make defconfig-ath9k-debug && make && sudo make install

Load the driver with debugging enabled: modprobe athk debug=0x7cb

Sujith
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