Re: [Xen-devel] [PATCH] xen-2.0: privileged port connections

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Kurt Garloff wrote:

> Oh, that's what I was planning to do. The privileged ports are less
> scarce than the 4GB of memory that Xen-2 supports ...
> We'll hardly get running more than 64 virtual machines, I'd guess.
>  
Maybe not the typical desktop user but that's definitely not going to be 
the case for the enterprise user.  I do a lot of testing with small 
domUs and I routinely have 40+ domains running (16MB a piece) on my 1GB 
laptop.
On a 4GB system, with NFS in the picture, you could pretty easily 
exhaust the privileged ports with domains using between 32-64MB of 
memory (which is a pretty reasonable amount to allocate).  Throw in PAE 
support and you'll run out quickly.
Would a patch to change Xend to use pty's for consoles be accepted?  xm 
console can be invoked via ssh to support remote consoles..
> Any insight what we could do there?
>  
I hate to beat a dead horse, but domain sockets seem like the obvious 
thing to do.  We don't need different privilege levels there so that 
seems like the thing to do.
Regards,Anthony Liguori



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