So... I have a PC164.  I get a lot of crashes.  Most of them are not
repeatable, and most of them are one of install-info, cc1, or as dumping
core.

Any likely things to look at?  Cooling?  For what it's worth, the air coming
out of the case fan is pretty much at the same temperature as all the rest
of the air around here (~70F).

I've experimented with -mcpu=21164 and -mcpu=21164a.  Doesn't seem to matter.
I can't tell which of these I "really" have.  (How would I tell?  Do they
show up differently in dmesg?)

Weirdly, these aren't quite random.  e.g., if I go to /usr/src/gnu/usr.bin
and make cleandir, it works, and if I run a make, it dumps trying to build
ecoff.so.  If I run make again, it makes ecoff.so without trouble.

-s