Anyone actually running a 32 bit kernel on sun4u?

[Jakub Bogusz]

On Tue, Jun 14, 2005 at 12:21:32PM -0700, Chris Poon wrote:
> It seems to me that with the current state of ioctl translation, having
> a 32 bit userland is a PITA for a 64 bit kernel. I'm not certain that
> a 32 bit kernel would work on a sun4u and hence I have always built my
> own 64 bit kernel RPMs.

AFAIK it won't work.
>From linux-2.6.10/arch/sparc/kernel/head.S:

sun4u_6:
                .asciz  "\n\rOn sun4u you have to use UltraLinux (64bit) kernel\n\rand not a 32bit sun4[cdem] version\n\r\n\r"

And yes, I saw this messate trying to boot sparc(32) kernel (2.4.x or
2.6.x, I don't remember now) once on Sun Ultra 1.


-- 
Jakub Bogusz    http://qboosh.cs.net.pl/