On Mon, Nov 08, 2010 at 06:09:39PM +0000, Antti Kantee wrote: > Modified Files: > src/sys/arch/mips/mips: locore_mips1.S > > Log Message: > In TLBRead, restore PID before doing the saves so that the caller's > TLB entries are used instead of the PID given as the argument. > > from Alessandro Forin
This doesn't make any sense. As far as I can tell, the real problem is that the code is not attending to pipeline hazards properly; moving things around until it experimentally seems to work is just going to create other odd behavior sometime down the line under different timing circumstances. I don't have a mips1-specific reference on hand, but my recollection is that you need *three* nops when messing with cop0 registers for all effects to flush through. Do you have any further explanations or reports of symptoms? I don't see anything on any of the mips lists. -- David A. Holland dholl...@netbsd.org
