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] pv 2.6.31 (kernel.org) and save/migrate fails, domU BUG

To: Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-devel] pv 2.6.31 (kernel.org) and save/migrate fails, domU BUG
From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Date: Tue, 24 Nov 2009 10:27:04 +0000
Cc: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "Xen-Devel \(E-mail\)" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Delivery-date: Tue, 24 Nov 2009 02:27:36 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <1258994676.7590.81.camel@xxxxxxxxxxxxxxxxxxxxxx>
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>
Organization: Citrix Systems, Inc.
References: <20091108154153.GM1434@xxxxxxxxxxx> <693ea516-aa5b-4f82-ad48-1bd51cfa3480@default> <20091108172747.GR1434@xxxxxxxxxxx> <20091110100806.GE16033@xxxxxxxxxxx> <1258994676.7590.81.camel@xxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
On Mon, 2009-11-23 at 16:44 +0000, Ian Campbell wrote:
> On Tue, 2009-11-10 at 10:08 +0000, Pasi Kärkkäinen wrote:
> > Hello,
> > 
> > Jeremy: Here's summary about these save/restore problems
> > using upstream Linux PV guest.
> > 
> > For me:
> >     - I can "xm save" + "xm restore" UP guest, but I get non-fatal
> >       BUG in the guest kernel, see [1].
> >     - "xm save" fails for SMP guest with "failed to get the suspend evtchn 
> > port", see [2].
> > 
> > For Dan:
> >     - "xm save" works for UP guest, but "xm restore" doesn't, giving
> >       infinite xen_sched_clock related dumps in the guest kernel, see [3].
> The runstate fix I sent to the list last week should help with this one.
> >     - "xm save" for SMP guest fails, it never ends. I suspect this
> >       is the same problem I'm seeing.
> I'm seeing this (or something very like it) too. At the moment it looks
> as if drivers/xen/manage.c:do_suspend is getting as far as the
> stop_machine() call but I am never seeing to the xen_suspend() callback.

See "xen: register timer interrupt with IRQF_TIMER" that I just sent to
the list for the fix.


Xen-devel mailing list