[libvirt] Libvirt /proc/cpuinfo processing fails on Linux/Sparc

Richard W.M. Jones rjones at redhat.com
Mon Feb 9 13:58:49 UTC 2009


On Mon, Feb 09, 2009 at 01:48:58PM +0000, Daniel P. Berrange wrote:
> On Mon, Feb 09, 2009 at 01:37:14PM +0000, Richard W.M. Jones wrote:
> > Below is what /proc/cpuinfo looks like on an Ultrasparc T1 running
> > Linux.
> > 
> > I haven't looked into it in detail yet, but the report from Dennis
> > Gilmore is that this breaks every libvirt command.  Presumably we are
> > parsing /proc/cpuinfo at libvirt startup ...
> 
> It shouldn't break libvirt startup AFAICT.  We use this info for the
> virNodeInfo command obviously, but also when starting a new guest for
> purpose of CPU pinning. The latter is probably better off with us using
> numactl or a sysconf() macro determine max # of pCPUs available, since
> we don't need the full socket,core, thread topology in that context.
> 
> > (Initially reported by Dennis Gilmore)
> 
> Don't suppose Dennis has a patch to add support for this ? He
> mentioned he was going to work on one when this came up on IRC
> a week or so back.

No.  I'm waiting to get some more details, and I also now have access
to his Sparc machine so I can test this myself.

Rich.

-- 
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