On Fri, 2011-04-15 at 14:20 -0500, Anthony Liguori wrote:
> On 04/15/2011 02:15 PM, Dave Hansen wrote:
> > On Fri, 2011-04-15 at 12:17 -0500, Anthony Liguori wrote:
> >> If you're in OOM and you need memory, you can't ask the host for more
> >> and wait for a response. You have to reclaim it imme
On 04/15/2011 02:15 PM, Dave Hansen wrote:
On Fri, 2011-04-15 at 12:17 -0500, Anthony Liguori wrote:
On 04/15/2011 11:36 AM, Dave Hansen wrote:
Why would we do this in QEMU? This prevents the guest from doing
ballooning reclaim during OOM.
What the heck is "ballooning reclaim"? Could you ela
On Fri, 2011-04-15 at 12:17 -0500, Anthony Liguori wrote:
> On 04/15/2011 11:36 AM, Dave Hansen wrote:
> >> Why would we do this in QEMU? This prevents the guest from doing
> >> ballooning reclaim during OOM.
> > What the heck is "ballooning reclaim"? Could you elaborate a bit on how
> > this hap
On 04/15/2011 11:36 AM, Dave Hansen wrote:
On Fri, 2011-04-15 at 11:21 -0500, Anthony Liguori wrote:
This patch makes the "tell host first" logic the only case. This
should make everybody happy, and reduce the amount of untested or
untestable code in the kernel.
It doesn't make me happy.
Darn
On Fri, 2011-04-15 at 11:21 -0500, Anthony Liguori wrote:
> > This patch makes the "tell host first" logic the only case. This
> > should make everybody happy, and reduce the amount of untested or
> > untestable code in the kernel.
>
> It doesn't make me happy.
Darn.
> Why would we do this in Q
On 04/15/2011 09:44 AM, Dave Hansen wrote:
There's a patch pending on LKML at the moment:
http://lkml.org/lkml/2011/4/7/101
The virtio balloon driver has a VIRTIO_BALLOON_F_MUST_TELL_HOST
feature bit. As of now, qemu-kvm defines the bit, but doesn't set it.
feature bit. Whenever the b
There's a patch pending on LKML at the moment:
http://lkml.org/lkml/2011/4/7/101
The virtio balloon driver has a VIRTIO_BALLOON_F_MUST_TELL_HOST
feature bit. As of now, qemu-kvm defines the bit, but doesn't set it.
feature bit. Whenever the bit is set, the guest kernel must always
tell