Wayne Knowles wrote:

> > A kernel from the nathanw_sa branch is claimed to work
> > with mips3 ISA, but it doesn't currently work on my pmax.
> > Everything appears to be in place, but I suspect there
> > is some underlying assumption about TLB operations.
> >
> > I guess it would be good to know if other mips1 machines
> > are trying to run a kernel or if r4000 pmax machines can
> > run a kernel.
> 
> The branch has only been tested on mips3 processors (under -sgimips).
> Support for mips1 should work, but has not been tested yet.

That's what I suspected.
 
> Some minor changes to the MD startup routines are required to ensure
> proc0paddr and curproc point to the correct structure.
> 
> The following diff is an example of the required changes that were done
> to the sgimips port.  Similar changes for the pmax platform have not been
> done yet - hopefully it is all that is missing to get pmax running for
> you:

[...]

These changes were introduced in machdep.c 1.197.2.1.

	-- Gregory McGarry <g.mcgarry@ieee.org>