From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Sun, 31 Oct 2004 19:57:23 +0000 (GMT) Received: from quechua.inka.de ([IPv6:::ffff:193.197.184.2]:42731 "EHLO mail.inka.de") by linux-mips.org with ESMTP id ; Sun, 31 Oct 2004 19:57:17 +0000 Received: from pcde.inka.de (uucp@[127.0.0.1]) by mail.inka.de with uucp (rmailwrap 0.5) id 1COLpE-0001sr-00; Sun, 31 Oct 2004 20:57:16 +0100 Received: by aton.pcde.inka.de (Postfix, from userid 1001) id 97A1C1E5C7; Sun, 31 Oct 2004 20:55:50 +0100 (CET) Date: Sun, 31 Oct 2004 20:55:50 +0100 From: Dennis Grevenstein To: linux-mips@linux-mips.org Subject: Re: unable to handle kernel paging request Message-ID: <20041031195550.GA12397@aton.pcde.inka.de> References: <20041031184233.GA11120@aton.pcde.inka.de> <20041031191631.GB11681@aton.pcde.inka.de> <20041031192653.GG2094@lug-owl.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041031192653.GG2094@lug-owl.de> User-Agent: Mutt/1.4.2.1i Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 6235 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: dennis@pcde.inka.de Precedence: bulk X-list: linux-mips On Sun, Oct 31, 2004 at 08:26:53PM +0100, Jan-Benedict Glaw wrote: > System.map is a list of function start addresses. Typically, functions > don't crash at their very first instructions, this is why you don't see > "exact" matches. okay. > From my fading MIPS knowledge, ip22zilog_interrupt called > ip22zilog_receive_chars and the later one crashed. Now, use objdump and > create a disassembly dump of the object file that contains the IP22 > Zilog stuff. There, find the part that's 0x20 bytes away from the start > of ip22zilog_receive_chars. Now you know the cause of this oops. That's what I found: 8810da14: 8c82001c lw v0,28(a0) 8810da18: 00809021 move s2,a0 8810da1c: 8c510000 lw s1,0(v0) 8810da20: 00a09821 move s3,a1 8810da24: 8e220118 lw v0,280(s1) and: 8810e224: 0e04367f jal 8810d9fc 8810e228: 02803021 move a2,s4 8810e22c: 0a04386e j 8810e1b8 8810e230: 32020001 andi v0,s0,0x1 8810e234: 0e0437bc jal 8810def0 > From > here, try to figure out the reason for it... Well, I'm sure "MIPS assembly for Dummies" must be available somewhere. While I keep looking please help me ;-) mfg Dennis -- There is certainly no purpose in remaining in the dark except long enough to clear from the mind the illusion of ever having been in the light. T.S. Eliot