[Xen-devel] More on 2.6.28 and balloon driver

[Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>]

Can't prove it yet, but it appears that when 2.6.28
is ballooned to use less memory, the pages aren't
actually returned to the domain's available pool
of memory in Xen.

I've got some code (to be posted soon) that does
an alloc_domheap_pages(d,0,0) after domain d balloons
to use less memory.  The code works with linux-2.6.18-xen
and linux-2.6.27-xen, but not with 2.6.28... the
allocate fails.

Any good reason why this might be different?  Or should
I dig for a bug / code difference?

Also, I am still on xen 3.3.0+ so if this was fixed
later, please let me know.

Dan

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