Marcelo Tosatti wrote:

On Wed, Mar 23, 2005 at 11:12:11AM -0500, Dan Malek wrote:

quoted

On Mar 23, 2005, at 5:25 AM, Marcelo Tosatti wrote:

quoted

You misunderstood: get_mmu_context() _wont_ be called if the mm 
structures
are the same.

I understood.  At most, get_mmu_context() will only do a 'tlbia'
instruction, I didn't see your reason for thinking this would have
an effect on the tlbie usage.

OK. That is not a good reason, indeed.

quoted

quoted

quoted

Well, that's interesting.  It's likely to only happen on an 860 
variant
that
has the large TLB.

For what reasoning?

My initial debugging seemed to indicate a stale TLB entry.  With
the larger TLB this is more likely to happen.  The bug was never
seen on the 823/850 with smaller TLBs.

I have a new 8xx board now, so I'll have to start working on these
issues as well.

OK!

I've just managed to get 2.6.12-rc1 running on my 870 based board
and the tlb invalidate is still needed.

Investigating...

Regards

Pantelis