> If mips3_TBIS() of locore_mips3.S r1.59 is patched as following, will
> things be improved?
> 
> Index: locore_mips3.S
> ===================================================================
> RCS file: /cvsroot/syssrc/sys/arch/mips/mips/locore_mips3.S,v
> retrieving revision 1.59
> diff -r1.59 locore_mips3.S
> 2225a2226
> > #if 0
> 2241a2243
> > #endif
>
> Thanks for the patch, and for looking at this:
>
> I've applied this patch, but I'm still seeing the same thing (although
> panics se em to be less frequent.)

Ok, the TLB is filled with NV (not valid) entries.  I think NetBSD is
designed not to load NV TLB entry, and your result might imply
any mulfunction in address range removing.

Tohru Nishimura