From: Sven Eckelmann <sven@narfation.org>
To: Felix Fietkau <nbd@openwrt.org>
Cc: ath9k-devel@lists.ath9k.org, adrian.chadd@gmail.com,
	linux-wireless@vger.kernel.org, shafi.wireless@gmail.com,
	lindner_marek@yahoo.de, Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Subject: Re: Re: [RFC] ath9k: Work around complete stuck of hw
Date: Sun, 23 Sep 2012 12:04:47 +0200
Message-ID: <1822413.FOnaUoKYHo@sven-desktop.home.narfation.org> (sfid-20120923_120543_776939_DFDABEC0)
In-Reply-To: <5053160B.8060908@openwrt.org>
References: <50521E02.4030809@openwrt.org> <1347616045-29336-1-git-send-email-sven@narfation.org> <5053160B.8060908@openwrt.org>
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On Friday 14 September 2012 13:33:31 Felix Fietkau wrote:
[..]
> > ---
> > This check is currently tested. This takes quite a long time and maybe
> > someone with more knowledge of atheros devices can check whether this one
> > is completely and utterly wrong.
> > 
> > The type RESET_TYPE_FATAL_INT was chosen in this test to allow us to see
> > whether this condition was already true by reading from
> > /sys/kernel/debug/ieee80211/phy0/ath9k/reset
> 
> Your debug patch should not be silent when it resets the hw. We need
> to make sure that this bug gets fixed properly. If my patch below does
> not fix it, then at least add a WARN_ON to ensure that we don't just
> hide the bug and move on.

It is not silent for me and is not a patch that should be applied to the 
upstream kernel. Just wanted to ask whether this is the right place and 
approach

> Somebody on the openwrt-devel list pointed out that there is some code
> missing in the ar933x wmac reset function. Please try this patch (apply
> it to your kernel tree):

Neither mine nor your patch has an effect. One node is now again dead after ~8 
1/2 days. It looks like the check isn't done (correctly). I will investigate 
this further tomorrow.

Kind regards,
	Sven
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