[no subject]

CC: (BUG ZWEI) at MIT-AI, (BUG LISPM) at MIT-AI
    Date: Wed ,24 Sep 80 12:07:00 EDT
    From: DLW at MIT-AI (Daniel L. Weinreb)
    To: (BUG ZWEI) at MIT-AI
    CC: (BUG LISPM) at MIT-AI

    If you control-top-E the form "(compile 'foo)", it says Compiler recursively
    entered, you may lose.  Gee, this seems pretty innocent to me.  Should it
    really give such an ominous message?

The reason is that the compiler is non-reentrant.  The problems include the
use of the temporary area and an array which is used by the assembler.  In
the case you mention I am not sure whether it actually runs the risk of
losing with the temporary area or whether the error check is just being
too conservative.