linux-kernel - Re: [ath9k-devel] ath9k: massive unexplained latency in 2.6.27 (rc5, rc6, probably others)

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Message-ID: <20080919235305.GD11665@tesla>
Date:	Fri, 19 Sep 2008 16:53:05 -0700
From:	"Luis R. Rodriguez" <lrodriguez@...eros.com>
To:	Steven Noonan <steven@...inklabs.net>
CC:	Luis Rodriguez <Luis.Rodriguez@...eros.com>,
	Senthilkumar Balasubramanian 
	<Senthilkumar.Balasubramanian@...eros.com>,
	Ingo Molnar <mingo@...e.hu>,
	"ath9k-devel@...ts.ath9k.org" <ath9k-devel@...ts.ath9k.org>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [ath9k-devel] ath9k: massive unexplained latency in 2.6.27
	(rc5, rc6, probably others)

On Fri, Sep 19, 2008 at 04:31:20PM -0700, Steven Noonan wrote:
> 
> On Fri, 19 Sep 2008, Luis R. Rodriguez wrote:
> > Thanks for the patch Senthil. He is on Linus' v2.6.27-rc, you are on
> > wireless-testing so I've ported it (no changes, it just applies cleanly
> > now). This is also untested by me:
> 
> I'm seeing the same latency issue I reported originally with the latest
> -tip kernel and WITHOUT irqpoll.

Damn it.

> Apparently there's something else to this...

Steven,

Can you reproduce this? If so can you tell us how? If you can reproduce
can you try to test this with wireless-testing as well? That is still
based on 2.6.26-rc6 but its just has all the new wireless development
stuff queued up for 2.6.28 so far. Everything else is the same.

  Luis
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