SEGV

[Stephen Weeks]

> I have been running it with GC_EVERY_CHECK on, but it is slow as a dog.  It has
> been running for 20 hours and hasn't failed, but I suspect it hasn't gotten very
> far at all.  Are you talking about something that won't gc quite that often?

Yes.  I am talking about something that does a gc whenever it reaches a gc point 
for the first time.  Upon subsequent times, it only gc's if a gc needs to
happen.  To implement it, you just need a bitmap based on line number of C file
and to modify the limitcheck macro appropriately.