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Re: [Xen-devel] Maximum number of DomUs? (x86_64)




On 9 Apr 2006, at 02:37, Florian Kirstein wrote:

So I wonder, which structure could run out of memory there? Is this a known
limitation? Didn't find much about the maximum number of DomUs
in the list archives... The Dom0 is running a CentOS4 x86_64 and I don't
even need a DomU image to reach this limit, network and diskless DomUs
just running into an "no root filesystem" panic being "preserve"d after
the crash have the same effect.

Xen's own private heap is fixed size (16MB) and that's used to allocate a certain amount of per-domain state. This restriction could be lifted on x86/64 but it's not particularly a priority right now.

 -- Keir


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