can't flush tlb on e500

[Benjamin Herrenschmidt]

On Mon, 2009-05-25 at 10:33 +0900, Hideo Saito wrote:
> 
> This report came from LKML, although I should post it here first,
> the report said that there is a regression in linux-2.6.29 as to
> flushing a TLB entry that was going to be re-used when a context
> overflowed from the TLB.
> 
> On Fri, May 22, 2009 at 6:27 PM, Benjamin Herrenschmidt wrote:
> > Have you verified that this change fixes your problem ?
> 
> I tested using "hackbench 100" and it was done successfully on my
> platform with e500(MPC8548).
> 
> >
> > Can you re-submit to linuxppc-dev at ozlabs.org mailing list, along
> with
> > proper changeset comment and signed-off-by: line ?
> 
> I am sorry I don't know as to the proper changeset comment.
> 
Well, that simply means a proper description of the bug and
the fix :-)

I'll cook up one.

Cheers,
Ben.