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xen-devel
Re: [Xen-devel] Problem with starting guest (para_virt dom0)
On Wed, 2009-01-14 at 23:56 -0800, Adam Wendt wrote:
> Hi,
>
> I've managed to get a para_virt dom0 running on my x86_64 system but
> having problems starting a guest. First problem was that xenstore
> client programs weren't able to communicate over xenbus (xs_write_all
> hitting its return false branch) still not sure why this is happening.
> I was able to at least get xenstore working by hacking the client to
> use the normal socket by default.
Perhaps you need to enable xenfs in your kernel build and mount it
on /proc/xen in order to gain access to /proc/xen/xsd*?
> But now I'm getting:
> Error: [Errno 2] No such file or directory: '/proc/xen/balloon'
>
> Google only turned up reports that this is related to trying to give
> the guest too much memory, but xm info shows I have over 3.5G free and
> only trying to give 128M to the guest. Any other ideas what might be
> causing this?
pvops only supports balloon via a sysfs interface not proc. There is a
patch in xen-unstable.hg from Jeremy Fitzhardinge which fixes this but
you'll either need to use xen-unstable or backport it to whatever you
are using (it's pretty simple, IIRC).
Ian.
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