Each user needs a PRCLM quota sufficient to create an additional process for the debugger, beyond the number of processes needed by the program. BYTLM, ENQLM, FILLM, and PGFLQUOTA are pooled quotas. They may need to be increased to account for the debugger process as follows: o Each user's ENQLM quota should be increased by at least the number of processes being debugged. o Each user's PGFLQUOTA might need to be increased. If a user has an insufficient PGFLQUOTA, the debugger might fail to activate or might cause "virtual memory exceeded" errors during execution. o Each user's BYTLM and FILLM quotas may need to be increased. The debugger requires BYTLM and FILLM quotas sufficient to open each image file being debugged, the corresponding source files, and the debugger input, output, and log files.