This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-devel] Xen gdb -- unable to set breakpoints on x86-64 PV linux

To: <shanth@xxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Xen gdb -- unable to set breakpoints on x86-64 PV linux domU
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Thu, 10 Apr 2008 21:36:33 +0100
Delivery-date: Thu, 10 Apr 2008 13:37:33 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <20080410125603.uw41orunswg8gcgs@xxxxxxxxxxxxxxxxxxx>
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: AcibSpA/zrlfKwc9Ed2/WgAWy6hiGQ==
Thread-topic: [Xen-devel] Xen gdb -- unable to set breakpoints on x86-64 PV linux domU
User-agent: Microsoft-Entourage/
On 10/4/08 19:56, "shanth@xxxxxxxxxxx" <shanth@xxxxxxxxxxx> wrote:

> 1. http://lists.xensource.com/archives/html/xen-devel/2006-10/msg00205.html
>     - This was in PAE mode. Keir found the problem:
>        "Ah, the lookup function is mapping the PTE page with write
> permissions.
>         That won't work. I'll check in a fix."
>         I want to verify if my sources includes it. But, I've not been able
>         to trace the fix.

This is changeset 11698 in xen-3.1-testing.hg. It's an old fix so you're
sure to have it.

> 2. http://lists.xensource.com/archives/html/xen-tools/2007-05/msg00001.html
>     - This was a more recent error report on x86_64. But, no response.

Well, I'd need to set myself up with a 64-bit dom0 and a 64-bit domU to test
this. If it can be reliably reproduced then it can't be anything that tricky
to fix I'm pretty sure.

 -- Keir

Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>