From owner-freebsd-current@FreeBSD.ORG Mon Nov 9 15:50:22 2009 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 556E61065676 for ; Mon, 9 Nov 2009 15:50:22 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 29D3A8FC26 for ; Mon, 9 Nov 2009 15:50:22 +0000 (UTC) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id D651846B2D; Mon, 9 Nov 2009 10:50:21 -0500 (EST) Received: from jhbbsd.hudson-trading.com (unknown [209.249.190.8]) by bigwig.baldwin.cx (Postfix) with ESMTPA id 0C3488A021; Mon, 9 Nov 2009 10:50:21 -0500 (EST) From: John Baldwin To: freebsd-current@freebsd.org Date: Mon, 9 Nov 2009 10:21:25 -0500 User-Agent: KMail/1.9.7 References: <4AF73E2B.9010404@siad.net> In-Reply-To: <4AF73E2B.9010404@siad.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200911091021.26160.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Mon, 09 Nov 2009 10:50:21 -0500 (EST) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,RDNS_NONE autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: Subject: Re: bootstrap loader problem 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: Mon, 09 Nov 2009 15:50:22 -0000 On Sunday 08 November 2009 4:54:51 pm Don L. Belcher wrote: > John Baldwin wrote: > > On Sunday 01 November 2009 7:35:55 pm Don L. Belcher wrote: > > > >> New Dell 1737 laptop > >> > >> The following error occurs with versions 7.2 release and later > >> this message is from 8 RC2. All versions tried with 7.1 release and > >> earlier work fine, I tried 7.1, 7.2 and 6.4. I rebuilt 8 RC2 CD with > >> "loader" > >> from 7.1 release and the 8 RC2 comes up O.K. now. > >> I have two questions: > >> 1) is anybody familiar with this problem > >> 2) is it ok to install 8 RC2 using the 7.1 "loader" > >> > >> BTX loader 1.00 BTX version is 1.02 > >> Consoles: internal video/keyboard > >> panic: free: guard1 fail @ 0xbb797074 from (diretory path to) > >> common/console.c:94 > >> --> Press a key (etc) > >> > > > > I have not seen that before. Can you try compiling a loader on 8 that > > doesn't include GPT support? (cd /sys/boot; make > > LOADER_NO_GPT_SUPPORT=yes) > > > Sorry it took so long. I installed to hard drive and the "loader" does > not exhibit the problem. > The problem only shows up when booting from CD ROM. The boot from CD ROM > works > OK using the "loader" built with make LOADER_NO_GPT_SUPPORT=yes Bizarre, so somehow the BIOS for your CD drive is choking when the loader uses memory > 1MB for its malloc(). Hmmm, I know other people tested that change because I had to add bounce buffering to the CD drivers in the loader for buffers > 1MB. I could perhaps have a bug in the bounce buffering code that is trashing malloc's internal state if it does a buffer overrun of some sort. -- John Baldwin