From owner-freebsd-stable@FreeBSD.ORG Sun Sep 11 20:34:54 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org 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 7B52116A41F for ; Sun, 11 Sep 2005 20:34:54 +0000 (GMT) (envelope-from danger@rulez.sk) Received: from mail.rulez.sk (DaEmoN.RuLeZ.sK [84.16.32.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id EDC7D43D46 for ; Sun, 11 Sep 2005 20:34:53 +0000 (GMT) (envelope-from danger@rulez.sk) Received: from localhost (localhost [127.0.0.1]) by mail.rulez.sk (Postfix) with ESMTP id A07F21CC6D; Sun, 11 Sep 2005 22:34:52 +0200 (CEST) Received: from danger.mcrn.sk (danger.mcrn.sk [84.16.37.254]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.rulez.sk (Postfix) with ESMTP id D73561CC65; Sun, 11 Sep 2005 22:34:45 +0200 (CEST) Date: Sun, 11 Sep 2005 22:33:47 +0200 From: Daniel Gerzo X-Mailer: The Bat! (v3.5) UNREG / CD5BF9353B3B7091 X-Priority: 3 (Normal) Message-ID: <1275346059.20050911223347@rulez.sk> To: Anthony Chavez In-Reply-To: References: MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="----------3B1517534F5D5CB" X-Virus-Scanned: by amavisd-new at mail.rulez.sk X-Spam-Status: No, score=-5.741 tagged_above=-999 required=5 tests=[ALL_TRUSTED=-3.3, AWL=0.158, BAYES_00=-2.599] X-Spam-Score: -5.741 X-Spam-Level: X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org Subject: Re[2]: Stress testing and TIMEOUT - WRITE_DMA X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Daniel Gerzo List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Sep 2005 20:34:54 -0000 This is a cryptographically signed message in MIME format. ------------3B1517534F5D5CB Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Hi Anthony, Sunday, September 11, 2005, 10:18:36 PM, you has on mind: > I'm not seeing much in the way of responses to this post from > freebsd-questions, so I thought I'd take it to freebsd-stable, where it > is probably more relevant. ;-) > Please see my original thread on freebsd-questions for context. > On Fri, 26 Aug 2005 03:21:35 -0600 Anthony Chavez = wrote: >> My question is simply this: is the fact that I received 4 TIMEOUT >> warnings in the space of roughly 2 weeks significant cause for concern? > Apparently, the fact that the stress tool produced so few warnings may > have given me a false sense of security. I'm being treated to the > following messages (81 in total) today, after 8 days uptime: > Sep 6 11:35:27 mybox kernel: ad0: TIMEOUT - WRITE_DMA retrying (2 retrie= s left) LBA=3D8348191 > ... > Sep 6 18:59:09 mybox kernel: ad0: TIMEOUT - WRITE_DMA retrying (2 retrie= s left) LBA=3D8348383 > Sep 6 19:04:58 mybox kernel: ad0: TIMEOUT - READ_DMA retrying (2 retries= left) LBA=3D61749183 > The READ_DMA timeouts are happening very infrequently, but it's worth > mentioning that I'm seeing them now in addition. > This is quite disturbing, particularly when the machine in question is > *in*production.* I thing you should really quickly look for backuping your data. When I was seeing this kind of messages last time, my disk died after 3 days from time they started showing up in my log files. I wasn't able to write any data to the disk (system just sudennly paniced, when I tried to mount it rw, but I was able to mount it ro and copy most of the data) Note, that I wasn't able to copy about 10GB out of 30GB. So don't ignore them and have a good luck. > Has anyone who has experienced this pain found solace in 5-STABLE's ATA > drivers? > dmesg below. --=20 Best regards DanGer, ICQ: 261701668 | e-mail protecting at: http://www.2pu.net/ http://danger.rulez.sk | proxy list at: http://www.proxy-web.com/ | FreeBSD - The Power to Serve! [ I am not Mr. Tator! I am not the entertainment! - Dictator to Yakko ] ------------3B1517534F5D5CB--