From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Re: Re: [Xen-users] Xen 4.1.1 crash when manipulating cpupools. Date: Wed, 09 Nov 2011 10:55:41 +0100 Message-ID: <4EBA4E1D.6040306@ts.fujitsu.com> References: <1138586740.1551436.1320768873221.JavaMail.root@sz0032a.westchester.pa.mail.comcast.net> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0632835167==" Return-path: In-Reply-To: <1138586740.1551436.1320768873221.JavaMail.root@sz0032a.westchester.pa.mail.comcast.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: andrewpitman@comcast.net Cc: George Dunlap , xen-devel@lists.xensource.com, xen-users@lists.xensource.com List-Id: xen-devel@lists.xenproject.org This is a multi-part message in MIME format. --===============0632835167== Content-Type: multipart/alternative; boundary="------------030703080501020505050606" This is a multi-part message in MIME format. --------------030703080501020505050606 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Andy, the last problem with credit2 and cpupools I'm aware of was fixed with cs 23156 in xen 4.1, which is included in 4.1.2. I think this addressed your original problem. Juergen On 11/08/2011 05:14 PM, andrewpitman@comcast.net wrote: > George, > > Do you know if this was addressed in 4.1.2? > > Thanks, > Andy > > ------------------------------------------------------------------------------ > *From: *"George Dunlap" > *To: *andrewpitman@comcast.net > *Cc: *xen-devel@lists.xensource.com, xen-users@lists.xensource.com, "Pasi > Kärkkäinen" , "Juergen Gross" > *Sent: *Wednesday, August 3, 2011 2:09:08 PM > *Subject: *Re: [Xen-devel] Re: [Xen-users] Xen 4.1.1 crash when manipulating > cpupools. > > Yes, I'm aware of the crash when setting weight. I've had a quick look, and > it's not obvious what the problem is, and I haven't had a chance to look > deeper. > -George > > On 08/02/2011 12:44 PM, andrewpitman@comcast.net wrote: > > George, > > Thanks, that would be great! It would definitely be useful to have the > credit2 scheduler fully support cpupools. > > One other thing I did notice was that when I try to weight Domain-0 it > crashes the hypervisor as well (example: "xm sched-credit2 -d Domain-0 > -w 512"). > > Thanks, > Andy > > ------------------------------------------------------------------------------ > *From: *"George Dunlap" > *To: *"Juergen Gross" > *Cc: *"George Dunlap" , > xen-devel@lists.xensource.com, xen-users@lists.xensource.com, "Pasi > Kärkkäinen" , andrewpitman@comcast.net > *Sent: *Thursday, July 21, 2011 9:47:19 AM > *Subject: *Re: [Xen-devel] Re: [Xen-users] Xen 4.1.1 crash when > manipulating cpupools. > > On Thu, 2011-07-21 at 14:15 +0100, Juergen Gross wrote: > > I don't think credit2 is supporting cpupools up to now (at least not > any other > > cpupool than Pool-0). George? > > I think that here were some unfortunate corner cases wrt credit2 + > cpupools that I didn't get worked out. In any case, it's certainly not > being tested regularly, so it would be no surprise of something broke. > > I'll take a look at it in the next few [working] days in hope that > there's a relatively simple fix. > > -George > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel -- Juergen Gross Principal Developer Operating Systems PDG ES&S SWE OS6 Telephone: +49 (0) 89 3222 2967 Fujitsu Technology Solutions e-mail: juergen.gross@ts.fujitsu.com Domagkstr. 28 Internet: ts.fujitsu.com D-80807 Muenchen Company details: ts.fujitsu.com/imprint.html --------------030703080501020505050606 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Andy,

the last problem with credit2 and cpupools I'm aware of was fixed with
cs 23156 in xen 4.1, which is included in 4.1.2. I think this addressed
your original problem.


Juergen

On 11/08/2011 05:14 PM, andrewpitman@comcast.net wrote:
George,

Do you know if this was addressed in 4.1.2?

Thanks,
Andy

From: "George Dunlap" <george.dunlap@eu.citrix.com>
To: andrewpitman@comcast.net
Cc: xen-devel@lists.xensource.com, xen-users@lists.xensource.com, "Pasi Kärkkäinen" <pasik@iki.fi>, "Juergen Gross" <juergen.gross@ts.fujitsu.com>
Sent: Wednesday, August 3, 2011 2:09:08 PM
Subject: Re: [Xen-devel] Re: [Xen-users] Xen 4.1.1 crash when manipulating cpupools.

Yes, I'm aware of the crash when setting weight.  I've had a quick look, and it's not obvious what the problem is, and I haven't had a chance to look deeper.
 -George

On 08/02/2011 12:44 PM, andrewpitman@comcast.net wrote:
George,

Thanks, that would be great!  It would definitely be useful to have the credit2 scheduler fully support cpupools.

One other thing I did notice was that when I try to weight Domain-0 it crashes the hypervisor as well (example: "xm sched-credit2 -d Domain-0 -w 512").

Thanks,
Andy

From: "George Dunlap" <george.dunlap@citrix.com>
To: "Juergen Gross" <juergen.gross@ts.fujitsu.com>
Cc: "George Dunlap" <George.Dunlap@eu.citrix.com>, xen-devel@lists.xensource.com, xen-users@lists.xensource.com, "Pasi Kärkkäinen" <pasik@iki.fi>, andrewpitman@comcast.net
Sent: Thursday, July 21, 2011 9:47:19 AM
Subject: Re: [Xen-devel] Re: [Xen-users] Xen 4.1.1 crash when manipulating        cpupools.

On Thu, 2011-07-21 at 14:15 +0100, Juergen Gross wrote:
> I don't think credit2 is supporting cpupools up to now (at least not any other
> cpupool than Pool-0). George?

I think that here were some unfortunate corner cases wrt credit2 +
cpupools that I didn't get worked out.  In any case, it's certainly not
being tested regularly, so it would be no surprise of something broke.

I'll take a look at it in the next few [working] days in hope that
there's a relatively simple fix.

 -George


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-- 
Juergen Gross                 Principal Developer Operating Systems
PDG ES&S SWE OS6                       Telephone: +49 (0) 89 3222 2967
Fujitsu Technology Solutions              e-mail: juergen.gross@ts.fujitsu.com
Domagkstr. 28                           Internet: ts.fujitsu.com
D-80807 Muenchen                 Company details: ts.fujitsu.com/imprint.html
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