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Re: [Qemu-stable] [Qemu-devel] [PATCH v3 for-2.3 0/2] numa: Fix default


From: Igor Mammedov
Subject: Re: [Qemu-stable] [Qemu-devel] [PATCH v3 for-2.3 0/2] numa: Fix default VCPUs to node mapping
Date: Fri, 20 Mar 2015 16:01:34 +0100

On Fri, 20 Mar 2015 11:52:46 -0300
Eduardo Habkost <address@hidden> wrote:

> On Fri, Mar 20, 2015 at 11:24:14AM +0100, Igor Mammedov wrote:
> > On Thu, 19 Mar 2015 17:09:20 +0000
> > Igor Mammedov <address@hidden> wrote:
> > 
> > > Changes since v2:
> > >  - fix spelling errors
> > >  - split out PC hunks itno a separate patch
> > > 
> > > Igor Mammedov (2):
> > >   numa: introduce machine callback for VCPU to node mapping
> > >   pc: fix default VCPU to NUMA node mapping
> > > 
> > >  hw/i386/pc.c          |  9 +++++++++
> > >  include/hw/boards.h   |  5 +++++
> > >  include/sysemu/numa.h |  3 ++-
> > >  numa.c                | 18 +++++++++++++-----
> > >  vl.c                  |  2 +-
> > >  5 files changed, 30 insertions(+), 7 deletions(-)
> > > 
> > 
> > CCing stable which I've forgotten to do earlier
> 
> Why stable? This can be easily worked around by explicitly setting the
> CPUs for each node. I see this as an usbility improvement, not a bug
> fix. And it breaks compatibility.
For me if guest hangs due to incorrect topology provided by QEMU, it's a bug.
I'm not sure about what compatibility it breaks though,
but I won't insist on making downstream (2.2 based) live easier
in this case since there is workaround.






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