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


[Xen-devel] [PATCH] small bug-fixes

To: linux-kernel@xxxxxxxxxxxxxxx, Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Subject: [Xen-devel] [PATCH] small bug-fixes
From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Date: Thu, 10 Mar 2011 15:36:43 -0500
Cc: Konrad Rzeszutek Wilk <konrad@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 10 Mar 2011 12:37:48 -0800
Envelope-to: www-data@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/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
During testing (git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git 

I found that ballooning of PV guests stopped working and traced it down to
"xen/setup: Inhibit resource API from using System RAM E820 gaps as PCI mem 
which is correct for the initial domain, but not for true PV guests. This patch:

 "xen/e820: Don't mark balloon memory as E820_UNUSABLE when running as guest."
   fixes that.

The second I found when running 2.6.32 pvops tree when we swapped over from
using level_irq handler for VIRQ to percpu irq handler. There is a race window
that I was able to hit 66% of time. With 2.6.38 I can't seem to hit this and I 
not sure why - but it still makes sense to add this patch in. The patch in
question is:

 xen/hvc: Disable probe_irq_on/off from poking the hvc-console IRQ line.

Xen-devel mailing list