From owner-freebsd-stable@FreeBSD.ORG Thu May 14 06:24:56 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 5820F106566C for ; Thu, 14 May 2009 06:24:56 +0000 (UTC) (envelope-from nakal@web.de) Received: from fmmailgate03.web.de (fmmailgate03.web.de [217.72.192.234]) by mx1.freebsd.org (Postfix) with ESMTP id 15B658FC19 for ; Thu, 14 May 2009 06:24:55 +0000 (UTC) (envelope-from nakal@web.de) Received: from smtp08.web.de (fmsmtp08.dlan.cinetic.de [172.20.5.216]) by fmmailgate03.web.de (Postfix) with ESMTP id 73459FC5E44C for ; Thu, 14 May 2009 08:24:54 +0200 (CEST) Received: from [217.236.36.214] (helo=zelda.local) by smtp08.web.de with asmtp (TLSv1:AES128-SHA:128) (WEB.DE 4.110 #277) id 1M4UNC-00044R-00 for freebsd-stable@freebsd.org; Thu, 14 May 2009 08:24:54 +0200 Date: Thu, 14 May 2009 08:24:53 +0200 From: Martin To: freebsd-stable@freebsd.org Message-ID: <20090514082453.751b5dd5@zelda.local> X-Mailer: Claws Mail 3.7.1 (GTK+ 2.16.1; amd64-portbld-freebsd8.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: nakal@web.de X-Sender: nakal@web.de X-Provags-ID: V01U2FsdGVkX1+vsDItTN33k6a6d5miz51fjum77Z7TGejGnaSb v/xbkG7YxfTmBnJDnKlFohoEnYDGYqySt8St5OI8GZspFNyc5q qZ82yLceQ= Subject: FAILURE - zero length DMA transfer attempted 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: Thu, 14 May 2009 06:24:56 -0000 Hi, yesterday I was using my DVD drive (simply reading a DVD). I got lots of syslog entries that look like this: ata4: FAILURE - zero length DMA transfer attempted acd0: setting up DMA failed This happens on: FreeBSD kirby 7.2-RELEASE FreeBSD 7.2-RELEASE #0: Wed May 6 09:40:10 CEST 2009 root@kirby:/usr/obj/usr/src/sys/GENERIC amd64 Drive is Sony NEC Optiarc (SATA): acd0: DVDR at ata4-master SATA150 SATA controller is from Intel: atapci1: port 0xe600-0xe607,0xe700-0xe703,0xe800-0xe807, 0xe900-0xe903,0xea00-0xea1f mem 0xe9306000-0xe93067ff irq 19 at device 31.2 on p ci0 atapci1: [ITHREAD] atapci1: AHCI Version 01.20 controller with 6 ports detected There are no problems during reading the DVD, but I thought I it might still be interesting. -- Martin