From owner-freebsd-stable@FreeBSD.ORG  Tue Oct 30 17:16:26 2007
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id B570516A46B
	for <freebsd-stable@freebsd.org>; Tue, 30 Oct 2007 17:16:25 +0000 (UTC)
	(envelope-from jfvogel@gmail.com)
Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.189])
	by mx1.freebsd.org (Postfix) with ESMTP id 3A76413C4A8
	for <freebsd-stable@freebsd.org>; Tue, 30 Oct 2007 17:16:24 +0000 (UTC)
	(envelope-from jfvogel@gmail.com)
Received: by nf-out-0910.google.com with SMTP id b2so1582431nfb
	for <freebsd-stable@freebsd.org>; Tue, 30 Oct 2007 10:16:23 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta;
	h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
	bh=W/l8AY7sBnxRg4v4pQSAq/1sQV1ax1M6TDAjozWQn40=;
	b=lOBwR9qRn41K5Vq4A8AWEuxSGammwF4mPmw7EadXK67CobAbMPmBeJ3k2UmLJPg4GAET+CH5Nd1rpS/nCHTtGl2XENwfGJ1CZSM89sLS7rIbbbvgfI7geEN4IlsT+IXtyHegEx7S3cIuyZd6L7kHlMw52mh+UQ/yyx3UzY7mFzg=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta;
	h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
	b=BOvkt1UhaTB/oEq60k+h9+A9VY67bWM84fTTxt3nxvDjnHMD8kjNeFrOA94JHECt+RgJwha2lnmNtXEgBWTwJZJQsOA3ExjZ3vJT0KKhjN2z3IOhfgkqNS3IfirX8IVDEkUFXqt//p0Sy+TBQKIdxygf2AGqlmLpcd9ICz+czRc=
Received: by 10.86.71.1 with SMTP id t1mr5826381fga.1193764582321;
	Tue, 30 Oct 2007 10:16:22 -0700 (PDT)
Received: by 10.86.100.19 with HTTP; Tue, 30 Oct 2007 10:16:22 -0700 (PDT)
Message-ID: <2a41acea0710301016u4a0008dfjc83170257337863c@mail.gmail.com>
Date: Tue, 30 Oct 2007 10:16:22 -0700
From: "Jack Vogel" <jfvogel@gmail.com>
To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, 
	"FreeBSD Stable List" <freebsd-stable@freebsd.org>, 
	"FreeBSD Current" <freebsd-current@freebsd.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Cc: 
Subject: em watchdog problem
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 30 Oct 2007 17:16:26 -0000

This morning I had an idea about what the source of the watchdog
problem is. Also, we have repro'd at least one type of watchdog
inhouse.

One question, is this problem only happening for those running
STABLE with the 6.6.6 merged driver?

We found the problem does not seem to happen on 7.0.

Right now my suspicion is that the FAST irq handling is
again causing a problem. I am experimenting with variations
to the code today to be sure whats going on, and hopefully
fixing it.

Cheers,

Jack