From owner-freebsd-current@FreeBSD.ORG Fri Aug 29 14:50:15 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0F87E106575E for ; Fri, 29 Aug 2008 14:50:15 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (bigknife-pt.tunnel.tserv9.chi1.ipv6.he.net [IPv6:2001:470:1f10:75::2]) by mx1.freebsd.org (Postfix) with ESMTP id 7B7608FC26 for ; Fri, 29 Aug 2008 14:50:09 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from localhost.corp.yahoo.com (john@localhost [IPv6:::1]) (authenticated bits=0) by server.baldwin.cx (8.14.2/8.14.2) with ESMTP id m7TEntqX096022; Fri, 29 Aug 2008 10:50:02 -0400 (EDT) (envelope-from jhb@freebsd.org) From: John Baldwin To: "Pascal Hofstee" Date: Fri, 29 Aug 2008 09:51:44 -0400 User-Agent: KMail/1.9.7 References: <200808231056.18305.jhb@freebsd.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200808290951.44955.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-2.0.2 (server.baldwin.cx [IPv6:::1]); Fri, 29 Aug 2008 10:50:02 -0400 (EDT) X-Virus-Scanned: ClamAV 0.93.1/8115/Thu Aug 28 21:49:47 2008 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,NO_RELAYS autolearn=ham version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on server.baldwin.cx Cc: freebsd-current@freebsd.org, Christian Weisgerber Subject: Re: No root filesystem X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Aug 2008 14:50:15 -0000 On Friday 29 August 2008 03:36:46 am Pascal Hofstee wrote: > On Sat, Aug 23, 2008 at 4:56 PM, John Baldwin wrote: > > Does 'acpidump -t' show a MCFG table? Also, can you get the output > > of 'devinfo -r' (with working kernel). > > Btw ... i posted a full verbose bootlog from the missing kernel in the > other thread > perhaps that might be useful in resolving this issue. See below: > > http://lists.freebsd.org/pipermail/freebsd-current/2008-August/088099.html So the reports I've seen of this all involve the Nvidia MCP55 ATA chipset, and only the ata controller loses its marbles (so to speak). Christian ran a patch that tested each PCI config read and they always returned the same value from both methods. I think that this may be a weird bug in the ata driver itself. It might be helpful to add printfs to instrument the various nvidia-specific ATA routines in sys/dev/ata/ata_chipset.c to compare the old and new kernels. -- John Baldwin