kernel expection generated with 2.6.21-mm1 kernel boot up

[Benjamin Herrenschmidt]

On Tue, 2007-05-08 at 11:23 -0500, Linas Vepstas wrote:
> On Tue, May 08, 2007 at 05:34:44PM +0530, Srinivasa Ds wrote:
> > 
> > Looks like problem is in SLUB layer, I unmarked SLUB(CONFIG_SLUB)
> > option and now system is booting.
> 
> Its been repored by others (and I can reproduce it),
> its a problem with a bad interaction with SLUB and pg_tables
> A patch flew by recetnly that would not use slub for pg_tables, 
> but I don't know if that's the permanent fix.

Working on it... we'll be using __get_free_page() for the lowest level
of page tables.

Ben.