[Xen-users] NR_IRQ limit

[Eric Windisch <eric@xxxxxxxxxxxx>]

I've finally hit the NR_IRQ limit in Xen 3.2-1.  I'd like to increase  
this, which I suspect is as simple as increasing NR_VECTORS in include/ 
asm-x86/mach-default/irq_vectors.h; has anyone else had to do this, is  
this all that I'll need to do, or will I run into other issues?   I  
will need to increase the limit from its default of 256 to 1536.
My other question is, will I need to modify or otherwise recompile my  
Linux kernel (2.8.18-xen.hg, rev=416)?
As a suggestion, I'd really like to see this limit user-configurable  
at compile time, without having to edit the source...  my server is  
only at approximately 25% of its expected capacity, so I'd imagine  
that even those with smaller machines could be hitting this limit.
Thank you,

Eric Windisch
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