From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1JEono-00019e-QO for mharc-grub-devel@gnu.org; Tue, 15 Jan 2008 11:38:16 -0500 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JEonm-00019Z-Ba for grub-devel@gnu.org; Tue, 15 Jan 2008 11:38:14 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JEonj-000193-Jy for grub-devel@gnu.org; Tue, 15 Jan 2008 11:38:13 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JEonj-000190-DS for grub-devel@gnu.org; Tue, 15 Jan 2008 11:38:11 -0500 Received: from aybabtu.com ([69.60.117.155]) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1JEonj-000618-0v for grub-devel@gnu.org; Tue, 15 Jan 2008 11:38:11 -0500 Received: from [192.168.10.6] (helo=thorin) by aybabtu.com with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.63) (envelope-from ) id 1JEonf-0005Fp-D5; Tue, 15 Jan 2008 17:38:09 +0100 Received: from rmh by thorin with local (Exim 4.63) (envelope-from ) id 1JEolo-0001Li-Iy; Tue, 15 Jan 2008 17:36:12 +0100 Date: Tue, 15 Jan 2008 17:36:12 +0100 From: Robert Millan To: The development of GRUB 2 Message-ID: <20080115163612.GA4905@thorin> References: <20080112031444.GA30703@thorin> <87hchf2ulp.fsf@xs4all.nl> <20080115120643.GD31275@thorin> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080115120643.GD31275@thorin> Organization: free as in freedom X-Message-Flag: Worried about Outlook viruses? Switch to Thunderbird! www.mozilla.com/thunderbird X-Debbugs-No-Ack: true User-Agent: Mutt/1.5.13 (2006-08-11) X-detected-kernel: by monty-python.gnu.org: Genre and OS details not recognized. Cc: devel@lists.laptop.org Subject: Re: GRUB on OLPC / XO X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GRUB 2 List-Id: The development of GRUB 2 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Jan 2008 16:38:14 -0000 On Tue, Jan 15, 2008 at 01:06:43PM +0100, Robert Millan wrote: > > > /* Load pre-loaded modules and free the space. */ > > > grub_register_exported_symbols (); > > > - grub_load_modules (); > > > +// grub_load_modules (); > > > > Why? > > I still don't know. Memory corruption I think. I'm investigating. Ok, this would explain it: _start: 0x10000, _end: 0x1f804 Using memory for heap: addr=0x100000, end=0x400000 Using memory for heap: addr=0x2000, end=0x9ffff Welcome to GRUB! See how our core image and the second heap chunk overlap. I'm not sure if this is a bug in OFW's /memory/available, but in any case it doesn't hurt to add a generic sanity check in our memory manager to avoid this sort of breakage. It's also be useful to protect our own stack, etc.. What do you think? -- Robert Millan I know my rights; I want my phone call! What use is a phone call, if you are unable to speak? (as seen on /.)