WARNING - OLD ARCHIVES

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/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

Re: [Xen-devel] Re: [Xen-users] Xen 4 - Page Sharing HowTo?

To: Andrew Lyon <andrew.lyon@xxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Xen-users] Xen 4 - Page Sharing HowTo?
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Fri, 09 Apr 2010 16:22:33 +0100
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, XEN Mailing List <xen-users@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Fri, 09 Apr 2010 08:23:26 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <q2uf4527be1004090759mebb8239ay567aa2dbe5739f3@xxxxxxxxxxxxxx>
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/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcrX9TyR2uA8XRtUQJ2JDG2s7e+LqgAAz1Or
Thread-topic: [Xen-devel] Re: [Xen-users] Xen 4 - Page Sharing HowTo?
User-agent: Microsoft-Entourage/12.24.0.100205
On 09/04/2010 15:59, "Andrew Lyon" <andrew.lyon@xxxxxxxxx> wrote:

> ERROR Internal error: Error flushing ioemu cache
> ERROR Internal error: Error mapping page
> 
> Perhaps there are hardware requirements for page to disk?
> 
> Any idea what I need to do to have memory sharing support compiled
> into blktap2? The combination of memory sharing + blktap2 results in
> this error when I try to start a vm:
> 
> using config file "./jos-ts3.cfg".
> Error: Failed to create device.
>     stdout:
>     stderr: MEMSHR support not compiled in.
> Check that target "/mnt/tb1_store/Xen_VMs/WinXP/WinXP.hda" exists and
> that blktap2 driver installed in dom0.

Tbh I think these features are barely even tech preview in the 4.0.0
release. They got little testing and the devs who implemented them are also
off doing other things at least part time. I hope they will get some more
love before 4.0.1.

 -- Keir



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel