From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx.dlasys.net (24.152.192.123.res-cmts.eph.ptd.net [24.152.192.123]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 83DB5DDDEB for ; Thu, 29 Nov 2007 23:42:58 +1100 (EST) Message-ID: <474EB36D.1080408@dlasys.net> Date: Thu, 29 Nov 2007 07:41:17 -0500 From: "David H. Lynch Jr." MIME-Version: 1.0 To: schardt Subject: Re: Init hangs on Xilinx4 References: <474D8839.6020609@fz-juelich.de> In-Reply-To: <474D8839.6020609@fz-juelich.de> Content-Type: text/plain; charset=iso-8859-1 Cc: Linux PPC Linux PPC List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I had a similar problem. In my instance it turned out that I was inadvertently using the physical address of my uart as the output address. This worked during boot becasue there was a 1:1 physical-logical entry stuffed into the MMU. But since Linux did nto know about it, as soon as the VM system decided to use that TLB entry IO died - right in the middle of a string. While it is unlikely you made exactly the same mistake. One area you can check is memory. What is your output device ? schardt wrote: > Hi all, > > i still have some problems booting linux from flash and don't know how > to debug. > > i have a xilinx4-ppc with 64MB Ram and 4MB Flash, U-Boot works fine, > kernel is booting, but my little hello world program runs as init, died > after printing "He" (intead of "Hello World"). i tried initramfs with > build in cpio-image and jffs2 rootfs > > Is there a log-buffer to look at ? > Should i try another compiler version ? (btw. booting from systemace > works with the version i use). > > --------------------------- > famous last words : > > [ 50.476641] VFS: Mounted root (jffs2 filesystem). > [ 50.533581] Freeing unused kernel memory: 68k init > He > --------------------------- > > > regards > Georg > > > > ------------------------------------------------------------------- > ------------------------------------------------------------------- > Forschungszentrum Jülich GmbH > 52425 Jülich > > Sitz der Gesellschaft: Jülich > Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498 > Vorsitzende des Aufsichtsrats: MinDirig'in Bärbel Brumme-Bothe > Geschäftsführung: Prof. Dr. Achim Bachem (Vorsitzender), > Dr. Ulrich Krafft (stellv. Vorsitzender), Dr. Sebastian M. Schmidt > ------------------------------------------------------------------- > ------------------------------------------------------------------- > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > -- Dave Lynch DLA Systems Software Development: Embedded Linux 717.627.3770 dhlii@dlasys.net http://www.dlasys.net fax: 1.253.369.9244 Cell: 1.717.587.7774 Over 25 years' experience in platforms, languages, and technologies too numerous to list. "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction." Albert Einstein