Comment 1 for bug 828953

Which GT.M version? We did fix a memory leak in V5.3-004 - extract below from the release notes . Also, if long running processes don't close open devices, that can cause a memory leak

C9J01-003080 Memory leak plugged in pattern matching with alternation

GT.M now frees memory created when processing a pattern match operator containing alternations. In previous versions of GT.M, this same usage caused a small memory leak. (C9J01-003080)