From owner-freebsd-stable@FreeBSD.ORG Tue Sep 16 17:23:07 2008 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 50FE9106564A for ; Tue, 16 Sep 2008 17:23:07 +0000 (UTC) (envelope-from clint@0lsen.net) Received: from belle.0lsen.net (belle.0lsen.net [75.150.32.89]) by mx1.freebsd.org (Postfix) with ESMTP id 3A7448FC1B for ; Tue, 16 Sep 2008 17:23:07 +0000 (UTC) (envelope-from clint@0lsen.net) Received: by belle.0lsen.net (Postfix, from userid 1001) id 2EC5B7962D; Tue, 16 Sep 2008 10:04:52 -0700 (PDT) Date: Tue, 16 Sep 2008 10:04:52 -0700 From: Clint Olsen To: stable@freebsd.org Message-ID: <20080916170452.GB4861@0lsen.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.3i Organization: NULlsen Network X-Disclaimer: Mutt Bites! X-0lsen-net-MailScanner-Information: Please contact the ISP for more information X-MailScanner-ID: 2EC5B7962D.AA68E X-0lsen-net-MailScanner: Found to be clean X-0lsen-net-MailScanner-From: clint@0lsen.net X-Spam-Status: No Cc: Subject: Help debugging DMA_READ errors 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: Tue, 16 Sep 2008 17:23:07 -0000 Ok, I've had some flakiness with my 6.3-STABLE (Sun May 25 21:55:57 PDT 2008) box. I assume that these errors are indicative of a system-level problem rather than a single disk: Event 1 ------- Sep 14 05:12:54 belle kernel: ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=216477719 Result: Hard reset required Event 2 ------- Sep 16 02:11:09 belle kernel: ad4: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=172088735 Sep 16 02:13:08 belle kernel: acd0: WARNING - READ_TOC taskqueue timeout - completing request directly Sep 16 02:13:09 belle kernel: acd0: timeout waiting for ATAPI ready Sep 16 02:13:09 belle kernel: acd0: error issuing ATA PACKET command Sep 16 02:13:09 belle kernel: acd0: WARNING - READ_TOC freeing taskqueue zombie request Sep 16 02:13:09 belle kernel: acd0: timeout waiting for ATAPI ready Sep 16 02:13:09 belle kernel: acd0: error issuing ATA PACKET command ...last two repeating until reset... Result: Hard reset required Disk configuration: ad0: 114473MB at ata0-master UDMA100 ad4: 114473MB at ata2-master SATA150 ad6: 476940MB at ata3-master SATA150 I'm using one of those eSATA converter brackets in the back of the machine for ad6. I'm guessing this doesn't have to do with this problem since that disk wasn't mentioned. Any advice you can offer will be much appreciated. Thanks, -Clint -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.