From owner-freebsd-stable@FreeBSD.ORG Fri Feb 13 13:26:32 2009 Return-Path: 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 BAAD810656BD for ; Fri, 13 Feb 2009 13:26:32 +0000 (UTC) (envelope-from ghelmer@palisadesys.com) Received: from cetus.palisadesys.com (cetus.palisadesys.com [205.237.115.21]) by mx1.freebsd.org (Postfix) with ESMTP id 7C5888FC22 for ; Fri, 13 Feb 2009 13:26:32 +0000 (UTC) (envelope-from ghelmer@palisadesys.com) Received: from cancer.palisadesys.com (serverwatch [172.16.1.98]) by cetus.palisadesys.com (8.14.3/8.14.3) with ESMTP id n1DDQVMT070925 for ; Fri, 13 Feb 2009 07:26:31 -0600 (CST) (envelope-from ghelmer@palisadesys.com) Received: from [172.16.2.242] (cetus.palisadesys.com [205.237.115.21]) (authenticated bits=0) by cancer.palisadesys.com (8.14.2/8.14.2) with ESMTP id n1DDQVcd026584 for ; Fri, 13 Feb 2009 07:26:32 -0600 (CST) (envelope-from ghelmer@palisadesys.com) Message-ID: <49957505.7090405@palisadesys.com> Date: Fri, 13 Feb 2009 07:26:29 -0600 From: Guy Helmer User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <49676406.9050902@palisadesys.com> <49946769.1040009@palisadesys.com> In-Reply-To: <49946769.1040009@palisadesys.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-3.0 (cancer.palisadesys.com [205.237.115.20]); Fri, 13 Feb 2009 07:26:32 -0600 (CST) X-Palisade-MailScanner-Information: Please contact the ISP for more information X-Palisade-MailScanner: Found to be clean X-Palisade-MailScanner-SpamCheck: not spam (whitelisted), SpamAssassin (not cached, score=-4.399, required 6, autolearn=not spam, ALL_TRUSTED -1.80, BAYES_00 -2.60) X-Palisade-MailScanner-From: ghelmer@palisadesys.com Subject: Re: Big problems with 7.1 locking up :-( X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Feb 2009 13:26:33 -0000 Guy Helmer wrote: > FWIW, I think I have tracked down the changes just prior to > 7.1-RELEASE that is causing my Supermicro dual Xeon machines to > wedge. I did the binary search between 2008-10-02 and 2008-11-24 > without reproducing any lockups, and then I went on to search between > 2008-11-24 and 2009-01-04. An SMP kernel build from 2008-12-22 > (r186409) sources was stable for over two weeks; a kernel built from > 2008-12-29 (r186590) sources wedged in under 24 hours under moderate > load. > > It appears that the significant changes between r186409 and r186590 > were r186552 (delphij - reverted ATA changes) and r186535/r186534 > (delphij - reverted bce changes). My machines don't have bce > interfaces, so I suspect the ATA changes. > Never mind. I'm stepping back through older kernels and finding that the hangs are now occurring in kernels that had seemed to be stable... Guy