On Wed, May 05, 2010 at 12:48:33AM -0700, Kevin D. Kissell wrote: > I'm glad to hear that the patch is functional. It was pretty clear that > it would solve your problem, but I was concerned that the inability to > write the Cause bits was done as a way around some other problem. > Someone went to a certain amount of trouble to not accept them as > inputs, in violation of spec. I just looked back, and the bug was > introduced as part of a patch of Ralf's from April 2005 entitled "Fix > Preemption and SMP problems in the FP emulator". It's unlikely that > overriding CTC semantics actually fixed any underlying problems, but it > may have masked symptoms of problems that we can only hope have been > fixed in the mean time. Anyone run this patch on an FPUless SMP? Oh, > for a 34Kf with a bunch of TCs! ;o) That's commit ID 72402ec9efdb2ea7e0ec6223cf20e7301a57da02 and the patch was comitted during the CVS days which only records the comitter but not the author. The actual author is Atsushi Nemoto. Ralf
