Xen 
 
Home About Xen.org Xen Xen Summit Wiki Mailing List Bug Tracker Xen Downloads
 
   
 

xen-devel

Re: [Xen-devel] Re: Xen 3.2 and Big Real Mode support?

To: Guillaume Thouvenin <guillaume.thouvenin@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: Xen 3.2 and Big Real Mode support?
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Thu, 31 Jan 2008 13:45:04 +0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 31 Jan 2008 05:46:23 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <20080131144033.75224fb6@frecb000711>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AchkD3uKudU+69ACEdylgwAX8io7RQ==
Thread-topic: [Xen-devel] Re: Xen 3.2 and Big Real Mode support?
User-agent: Microsoft-Entourage/11.3.6.070618
On 31/1/08 13:40, "Guillaume Thouvenin" <guillaume.thouvenin@xxxxxxxxxxxx>
wrote:

> On Thu, 31 Jan 2008 10:36:31 +0000
> Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:
> 
>> I reproduced the problem. CPUID is not executed before the crash. Also a
>> disassembly of that area of memory does not look like sane 16-bit code. So I
>> think something has gone wrong before we get to the (probably bogus) MOVHPS
>> instruction.
> 
> A question here. You reproduce the problem by starting a domain and
> booting it on the openSUSE-10.3-GM-x86_64-mini.iso CD-ROM? How do you
> disassemble the area of memory that produces the problem? Are you using
> "objdump" on the bootloader found on the iso file or are you using some
> other trick?

I have a utility to scrape another domain's memory to a file, and then I run
ndisasm on that. The utility is attached.

 -- Keir

Attachment: xenmem.c
Description: Binary data

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
<Prev in Thread] Current Thread [Next in Thread>