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

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.

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.

Thanks.


	-- Dan