Somewhere in Lua, even the parser possibly, there is memory corruption. One of my scripts started giving very strange errors shortly after an edit. Sometimes the errors were even different. Delete the new lines, all is well. Add back dummy lines that don't do anything, crashes. The crashes in fact occur before the changed function is even called, but after it is parsed. Perhaps I should explain what a strange error is. "script.lua:-1882717303: 'for' initial value must be a number" is a strange error to me.
I was able to get consistent bizarre errors by changing getrnibble in malloc.c to always return 0. Not random, but still bizarre. Alas, I am unable to reduce or reproduce the errors except by modifying a few lines of a particular function. I have lots of other Lua code working successfully. Useless as all this may be, I figured it's worth reporting in case anybody sees anything like it. Haven't reported it to the Lua people, either, until there's something they could possibly do about it.
