From owner-freebsd-stable@FreeBSD.ORG Fri Apr 1 17:11:20 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F12FD16A4CE for ; Fri, 1 Apr 2005 17:11:20 +0000 (GMT) Received: from FS.denninger.net (wsip-68-15-213-52.at.at.cox.net [68.15.213.52]) by mx1.FreeBSD.org (Postfix) with ESMTP id E4A7143D2F for ; Fri, 1 Apr 2005 17:11:19 +0000 (GMT) (envelope-from karl@FS.denninger.net) Received: from fs.denninger.net (localhost [127.0.0.1]) by FS.denninger.net (8.13.3/8.13.1) with SMTP id j31HBJYl025495 for ; Fri, 1 Apr 2005 11:11:19 -0600 (CST) (envelope-from karl@FS.denninger.net) Received: from fs.denninger.net [127.0.0.1] by Spamblock-sys; Fri Apr 1 11:11:19 2005 Received: (from karl@localhost) by FS.denninger.net (8.13.3/8.13.1/Submit) id j31HBI3n025493; Fri, 1 Apr 2005 11:11:18 -0600 (CST) (envelope-from karl) Message-ID: <20050401111118.A25432@denninger.net> Date: Fri, 1 Apr 2005 11:11:18 -0600 From: Karl Denninger To: "Matthew N. Dodd" References: <20050329200841.A772@denninger.net> <20050329233843.L328@sasami.jurai.net> <20050329234318.A3883@denninger.net> <20050330230046.A68235@denninger.net> <20050331120100.P328@sasami.jurai.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2i In-Reply-To: <20050331120100.P328@sasami.jurai.net>; from Matthew N. Dodd on Thu, Mar 31, 2005 at 12:02:20PM -0500 Organization: Karl's Sushi and Packet Smashers X-Die-Spammers: Spammers cheerfully broiled for supper and served with ketchup! cc: freebsd-stable@freebsd.org Subject: Re: DANGER WILL ROBINSON! SERIOUS problem with current5.4-PRERELEASE - UPDATE (real this time) #2 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 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, 01 Apr 2005 17:11:21 -0000 On Thu, Mar 31, 2005 at 12:02:20PM -0500, Matthew N. Dodd wrote: > On Wed, 30 Mar 2005, Karl Denninger wrote: > > Removing the FIRST delta, which is: > > > > 218a219,221 > > if (!dumping) > > callout_reset(&request->callout, request->timeout * hz, > > (timeout_t*)ata_timeout, request); > > > > appears to get rid of the crashes while not harming data integrity OR the > > reqeueing. > > I'd be interested to know if the attached patch does anything. > > -- > 10 40 80 C0 00 FF FF FF FF C0 00 00 00 00 10 AA AA 03 00 00 00 08 00 > Index: ata-queue.c > =================================================================== > RCS file: /home/ncvs/src/sys/dev/ata/ata-queue.c,v > retrieving revision 1.32.2.6 > diff -u -u -r1.32.2.6 ata-queue.c > --- ata-queue.c 23 Mar 2005 04:50:26 -0000 1.32.2.6 > +++ ata-queue.c 31 Mar 2005 17:00:46 -0000 > @@ -217,8 +217,7 @@ > } > else { > if (!dumping) > - callout_reset(&request->callout, request->timeout * hz, > - (timeout_t*)ata_timeout, request); > + callout_drain(&request->callout); > if (request->bio && !(request->flags & ATA_R_TIMEOUT)) { > ATA_DEBUG_RQ(request, "finish bio_taskqueue"); > bio_taskqueue(request->bio, (bio_task_t *)ata_completed, request); > Removing the first delta has allowed the system to survive for over 24 hours, albiet while taking retryable errors. I have not yet attmepted this patch - but will now that I know that the system is stable with the first delta OUT. At minimum Matt that first delta has to come out to avoid the "pukes and chokes" - whether the above is recommended (by me anyway) I can't say yet - more as I know it. -- -- Karl Denninger (karl@denninger.net) Internet Consultant & Kids Rights Activist http://www.denninger.net My home on the net - links to everything I do! http://scubaforum.org Your UNCENSORED place to talk about DIVING! http://www.spamcuda.net SPAM FREE mailboxes - FREE FOR A LIMITED TIME! http://genesis3.blogspot.com Musings Of A Sentient Mind