assertion failure

I may have run out of memory, but I don't know. Two of my C++ source buffers added up the 20mB (with maximum fontification). One of my shell buffers had about 200k lines. However, in the past, I have seen XEmacs warn me about memory. So what did I do to dump it? I use the `completer' package. I was doing a `C-h f', had typed `perl<TAB>', and rather than showing the completions, it crashed. I lost the Lisp backtrace, since I had killed the xterm that I had started it in. Anyway, here is the Installation, followed by the backtrace. Sorry, no -g.