From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from web53806.mail.yahoo.com (web53806.mail.yahoo.com [206.190.36.201]) by ozlabs.org (Postfix) with SMTP id 6D5612BC0F for ; Sat, 16 Oct 2004 11:03:05 +1000 (EST) Message-ID: <20041016010303.65546.qmail@web53806.mail.yahoo.com> Date: Fri, 15 Oct 2004 18:03:03 -0700 (PDT) From: annamaya To: Dan Malek In-Reply-To: <1FB8DAAD-1EF0-11D9-BD1F-003065F9B7DC@embeddededge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linuxppc-embedded@ozlabs.org Subject: Re: Floating point error on a MPC8280 based board List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Thanks for the reply Dan. I see it clearly now. I think I need to visit my optometrist again. The pc is set to 0xff000104 but the flash is mapped at 0xfff00000 and the default vector is going to be 0xfff00100. I need to look at the reset code just as you suggested. I was stumped by the "floating point" error since that was not something I expected on a bad instruction fetch. --- Dan Malek wrote: > > On Oct 15, 2004, at 4:59 PM, annamaya wrote: > > > When I try to reboot my system on a MPC8280 eval > > board, I see the floating point error. Does anyone > > know why is this happening? > > It's trying to jump to a restart location in the > boot rom. > It fetches a bad instruction that attempts to > execute > as a floating point instruction. > > > bash-2.05b# reboot -f > > Restarting system > > floating point used in kernel (task=cf458000, > > pc=ff000104) > > This program counter is a typical warm restart boot > rom location. Change the kernel reboot code to jump > to the proper place in your boot rom or force a > restart > in some way. > > > -- Dan > > __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail