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

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

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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