Commits added to powerpc.git next and master branches

[Benjamin Herrenschmidt]

On Sun, 2008-12-21 at 20:32 +1100, Benjamin Herrenschmidt wrote:
> On Sun, 2008-12-21 at 02:07 -0700, Grant Likely wrote:
> > Hey Paul,
> > 
> > Top of your -next tree fails with a stack overflow on the MPC5200 when
> > attempting to mount an NFS rootfs (log below).  I haven't had a chance
> > to bisect yet, but I'm posting this in case someone has already seen
> > and solved this.
> 
> >From the NIP & LR values, it looks like it could be my fault.
> 
> MPC5200 is a 603 core right ?

Looks like a brown paper bag for me.

Try this:

Index: linux-work/arch/powerpc/mm/hash_low_32.S
===================================================================
--- linux-work.orig/arch/powerpc/mm/hash_low_32.S	2008-12-21 20:38:10.000000000 +1100
+++ linux-work/arch/powerpc/mm/hash_low_32.S	2008-12-21 20:38:14.000000000 +1100
@@ -709,3 +709,4 @@ _GLOBAL(_tlbia)
 	tlbia
 	sync
 #endif /* CONFIG_SMP */
+	blr