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Date: Thu, 21 Feb 2013 15:56:06 -0800
Message-ID: <CAJ-Vmom3v1+==u0RS8d6m+P-=DR8A755--t2_gQR+6Szf5N5VQ@mail.gmail.com> (sfid-20130222_005633_093285_4DF5DA13)
Subject: Re: 3.7.6+: ath9k: tx logic locks up after taking attenuation very high.
From: Adrian Chadd <adrian@freebsd.org>
To: Ben Greear <greearb@candelatech.com>
Cc: Sujith Manoharan <sujith@msujith.org>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
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Sender: linux-wireless-owner@vger.kernel.org

Right. As you increase attenuation, two things happen:

* You're going to see lots more filtered frames pop up; which may
involve pause/unpause of the queue;
* You're going to see BAR frames go out, which will involve
pausing/unpausing the queue.

So you may have found some very nice way to reproduce pause/unpause
related problems that are brought on by lots of TX failures leading to
BARs and filtered frames.

(Having your BAR frames be filtered .. god I hope not.)

So see whether there's some odd scenario where a queue is unpaused and
things aren't drained from the pending queue?


Adrian