From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: Re: Kernel 2.6.24, binutils-2.18, and tftplilo on diskless MVME167. Date: Fri, 14 Nov 2008 08:11:01 +0100 (CET) Message-ID: References: <1226611986.4267.16.camel@kars.perseus.home> <1226613676.4267.20.camel@kars.perseus.home> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Return-path: Received: from monty.telenet-ops.be ([195.130.132.56]:38715 "EHLO monty.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750821AbYKNHLG (ORCPT ); Fri, 14 Nov 2008 02:11:06 -0500 In-Reply-To: <1226613676.4267.20.camel@kars.perseus.home> Sender: linux-m68k-owner@vger.kernel.org List-Id: linux-m68k@vger.kernel.org To: Kars de Jong Cc: Stephen N Chivers , Roman Zippel , Andreas Schwab , Debian GNU/Linux m68k , Linux/m68k On Thu, 13 Nov 2008, Kars de Jong wrote: > On do, 2008-11-13 at 22:48 +0100, Geert Uytterhoeven wrote: > > On Thu, 13 Nov 2008, Kars de Jong wrote: > > > On di, 2008-11-11 at 11:01 +0100, Geert Uytterhoeven wrote: > > > > On Tue, 11 Nov 2008, Stephen N Chivers wrote: > > > > > In the past few days I have attempted to get 2.6 kernels booting on my > > > > > diskless MVME167 boards. > > > > > I have tried several kernels, including: > > > > > linux-image-2.6.26-1-mvme16x_2.6.26-9_m68k.deb. > > > > > > > > > > I traced the "freeze" of the kernel to the 'BUG_ON' test in > > > > > 'm68k_setup_user_interrupt' in file > > > > > arch/m68k/ints.c: > > > > > > > > > > BUG_ON(IRQ_USER + cnt >= NR_IRQS); > > > > > > > > > > Now, for the VME boards, IRQ_USER is 8, cnt is 192 and NR_IRQS is 200. So > > > > > this test will > > > > > trigger the BUG_ON action, and so the kernel appears to stop without > > > > > logging any diagnostics. > > > > > > > > Oops, that looks like an off-by-one error. It has been introduced by commit > > > > 69961c375288bdab7604e0bb1c8d22999bb8a347 ("[PATCH] m68k/Atari: Interrupt > > > > updates"). > > > > > > Hm, no fair! I already reported this bug back in 2006, asking for > > > feedback: > > > > > > http://www.nabble.com/Re%3A-CVS-Update%3A-linux-tt6999670.html > > > > > > ... but I never got any ;) > > > > Bummer... > > > > > By the way, I tested Linus' HEAD today (with your quilt patches, Geert) > > > on my MVME167, it only needed the above fixed and it booted. > > > > OK. Can I add your Tested-by? Then I'll forward it to Linus ASAP. > > Yes, no problem, if your patch would look something like this (I like Yes it does. > git already!): Good! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds