Am 08.05.2016 um 00:23 schrieb Maciej W. Rozycki:
NB I'm not a NetBSD expert -- this is a generic analysis based solely on the MIPS architecture and information provided here. Hope this helps anyway.
I used a daily built HEAD INSTALL kernel from nyftp as a start and booted it over tftp... (So I don't have the possibility to debug this one with gdb etc. probably.)
Your analysis sounds competent, but I fear I'm not capable of hunting this down alone. I'd gladly help and setup a -current environment, test patches etc. if I'm provided with code.
Felix