From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 4BD7867A33 for ; Thu, 7 Apr 2005 09:11:10 +1000 (EST) From: Benjamin Herrenschmidt To: Andreas Schwab In-Reply-To: References: <1112681154.9517.7.camel@gaston> Content-Type: text/plain Date: Thu, 07 Apr 2005 09:10:19 +1000 Message-Id: <1112829020.9518.202.camel@gaston> Mime-Version: 1.0 Cc: Andrew Morton , linuxppc-dev list Subject: Re: [PATCH] Update ppc32-fix-errata-for-some-g3-cpus.patch List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2005-04-07 at 01:02 +0200, Andreas Schwab wrote: > Benjamin Herrenschmidt writes: > > > The previous version of ppc32-fix-errata-for-some-g3-cpus.patch had an > > issue that would crash some G4 CPUs on boot. This is fixed in this new > > version, please replace the old one and send to linus asap (it's now > > been tested on enough CPUs). > > Apparently not. I'm getting "floating point used in kernel" crashes > during wakeup on my iBook G3 (750FX). And does removing that patch fixes it ? That is very strange. The patch works fine here on a G3 Pismo and a couple of G4s, the code in the patch does enable the FPU before initilizing the registers, so the kernel shouldn't take any FP exception... Couldn't the above be a different problem ? What is the exact PC where the exception occurs ? what instruction does it correspond to ? Ben.