From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from waste.org (waste.org [66.93.16.53]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "waste.org", Issuer "waste.org" (not verified)) by ozlabs.org (Postfix) with ESMTP id 03C76DDF23 for ; Thu, 25 Oct 2007 06:42:24 +1000 (EST) Date: Wed, 24 Oct 2007 15:42:16 -0500 From: Matt Mackall To: Grant Likely Subject: Re: Apparent kernel bug with GDB on ppc405 Message-ID: <20071024204215.GC19691@waste.org> References: <20071024194640.GB19691@waste.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: Cc: gdb@sourceware.org, linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, Oct 24, 2007 at 02:28:14PM -0600, Grant Likely wrote: > On 10/24/07, Matt Mackall wrote: > > I'm trying to debug a trivial statically-linked hello world program on > > a Xilinx PPC 405 and I'm seeing the following behavior: > > > > > > > Any suggestions? > > http://thread.gmane.org/gmane.linux.ports.ppc.embedded/11202 > > I was fighting with a similar problem almost 2 years ago. Looks like > it might be related. At some point the problem seemed to go away and > I determined what the root cause was. :-( > > I haven't been using gdb lately, so I don't know if it's the same > problem. Nobody I had talked to had seen the issue on other 405 > platforms. It could very well be something virtex-specific. Could be the same problem, but I'm seeing only your symptom 3 so far. I've tried throwing some larger hammers at the problem. Flushing all of the dcache and icache (flush_dcache_all and flush_instruction_cache) isn't helping. But printk(".") does! -- Mathematics is the supreme nostalgia of our time.