From mboxrd@z Thu Jan  1 00:00:00 1970
From: VM-Sascha <sascha@argc.de>
Subject: Re: XEN 3.4 and blktapctrl
Date: Fri, 29 May 2009 14:30:10 -0700 (PDT)
Message-ID: <23787334.post@talk.nabble.com>
References: <23771002.post@talk.nabble.com>
	<C645809B.C3F1%keir.fraser@eu.citrix.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <C645809B.C3F1%keir.fraser@eu.citrix.com>
List-Unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: xen-devel@lists.xensource.com
List-Id: xen-devel@lists.xenproject.org


Hi Keir, 

yes, that's the trick. Every tapctrl fifo gets now a own minor number. 
Now, the "tap:aio" is working as on XEN 3.3.1!

Thanks,
Sascha 



Keir Fraser-3 wrote:
> 
> I'll guess that Kevin Wolf's changeset 19349 causes this, by calling
> connect_tapdisk() with uninitialised parameter 'minor'. If you build Xen
> 3.4
> yourself you can try reverting this patch with 'hg export 19349 | patch
> -Rp1' and rebuild the tools.
> 
> Kevin: could you take another look at your patch, please.
> 
>  -- Keir
> 
> On 29/05/2009 11:14, "VM-Sascha" <sascha@XXXXXXXXX> wrote:
> 
>> 
>> Hello all, 
>> 
>> i'm playing with the new XEN 3.4 and if i use the backend "tap:aio" on my
>> domUs, all have the same
>> tapctrlwriteX & tapctrlreadX fifos
>> 
>> <SNIP>
>> 
>> tapdisk /var/run/tap/tapctrlwrite312222 /var/run/tap/tapctrlread312222
>> tapdisk /var/run/tap/tapctrlwrite312222 /var/run/tap/tapctrlread312222
>> tapdisk /var/run/tap/tapctrlwrite312222 /var/run/tap/tapctrlread312222
>> tapdisk /var/run/tap/tapctrlwrite312222 /var/run/tap/tapctrlread312222
>> 
>> </SNIP>
>> 
>> On XEN 3.3.1 it was always the domid like this:
>> 
>> <SNIP>
>> 
>> tapdisk /var/run/tap/tapctrlwrite1 /var/run/tap/tapctrlread1
>> tapdisk /var/run/tap/tapctrlwrite2 /var/run/tap/tapctrlread2
>> tapdisk /var/run/tap/tapctrlwrite3 /var/run/tap/tapctrlread3
>> tapdisk /var/run/tap/tapctrlwrite4 /var/run/tap/tapctrlread4
>> 
>> </SNIP>
>> 
>> Has anyone an idea why this happens on the new release?
>> 
>> Thanks,
>> Sascha
>> 
>> 
> 
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
> 
> 

-- 
View this message in context: http://www.nabble.com/XEN-3.4-and-blktapctrl-tp23771002p23787334.html
Sent from the Xen - Dev mailing list archive at Nabble.com.