On Wed, Mar 23, 2005 at 11:12:11AM -0500, Dan Malek wrote: > > 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.
OK. That is not a good reason, indeed. > >>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!
