From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: To: "M. Grabert" Cc: parisc-linux@lists.parisc-linux.org Subject: Re: [parisc-linux] Hints to debug, was: Voodoo3 PCI on C200 experiment pending! In-Reply-To: Message from "M. Grabert" of "Sun, 18 Aug 2002 05:21:34 BST." References: Date: Sat, 17 Aug 2002 23:05:25 -0600 From: Grant Grundler Message-Id: <20020818050525.0B27A4829@dsl2.external.hp.com> Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: "M. Grabert" wrote: > Does anybody can give me some hints what to do to debug this issue? Here's a start. You want to get the HPMC state from firmware. interrupt the boot process and type "ser pim" at the firmware prompt. You want to look at gr02 (return pointer) and IOAQ (aka offset, IP). IOAQ points at the instruction that tripped the HPMC handling. It wasn't necessarily the cause. Look up the symbol in the System.map with "buildtools/a.c" (another CVS repository on cvs.parisc-linux.org). IOAQ might point to user space if X11 server is involved. We'll have to look at PSW bits and/or Space registers to determine that. grant