On Sun, 20 Jan 2008, Manuel Bouyer wrote:
> The code in this branch brings in PAE support to NetBSD xeni386 (domU only)
> 2 new kernel configs (XEN3PAE_DOMU and INSTALL_XEN3PAE_DOMU). If there's
> interest in dom0 PAE support I'll look at it, but I'm not sure what it
> would brings over amd64, and there may be issues with userland tools
> accessing the hardware (mostly the X server I guess). PAE support is
> enbaled by 'options PAE'.

DomU PAE support allows Xen VPS providers to deliver 32-bit NetBSD VPSs 
without setting aside special non-PAE servers.  Heh. maybe we could even 
get NetBSD running on ec2?

Dom0 PAE support, expecially after DomU PAE support is done, is much less 
important, I think.

If there was an effort, however, to backport this change to the -STABLE 
branch, I would be quite interested, if I could help.  I'm not much of a 
programmer, but I can get you lots of debugging data (I'm running many 
NetBSD XenUs that I would be happy to move to i386PAE)  and I have gobs 
of PAE server hardware that I can donate to the cause, if that's a 
bottleneck.