DESCRIPTION OF DIAGNOSTICS These messages are classified as follows (listed in increasing order of desperation): (W) A warning (optional). (D) A deprecation (enabled by default). (S) A severe warning (enabled by default). (F) A fatal error (trappable). (P) An internal error you should never see (trappable). =====> (X) A very fatal error (nontrappable). (A) An alien error message (not generated by Perl). ... Trappable errors may be trapped using the eval operator. See "eval" in perlfunc. In almost all cases, warnings may be selectively disabled or promoted to fatal errors using the warnings pragma. See warnings. Out of memory! (#1) (X) The malloc() function returned 0, indicating there was insufficient remaining memory (or virtual memory) to satisfy the request. Perl has no option but to exit immediately. At least in Unix you may be able to get past this by increasing your process datasize limits: in csh/tcsh use limit and limit datasize n (where n is the number of kilobytes) to check the current limits and change them, and in ksh/bash/zsh use ulimit -a and ulimit -d n, respectively.