Re: pre6 BUG oops

Richard Henderson
2001-11-03T20:47:23Z

On Wed, Oct 31, 2001 at 07:53:37PM +0000, Linus Torvalds wrote:
> I wonder if the "VALID_PAGE(page)" macro is reliable on alpha? You seem
> to be able to trigger this too easily for it to not being something
> specific to the setup..

Should be. I've never seen an alpha with discontiguous memory.
(Well, I've not looked at a numa box, but that's not at issue here.)

FWIW, we dump the HWRPB memory table early in the boot process, e.g.

memcluster 0, usage 1, start 0, end 192
memcluster 1, usage 0, start 192, end 16267
memcluster 2, usage 1, start 16267, end 16384

where "usage 1" is reserved by the console.

r~