Monkey 1.4.0 was released today. Reproducible: Always
Please test 1.4.0 with and without USE=jemalloc. I had to unbundle the bundled version to use the system version of jemalloc.
(In reply to Anthony Basile from comment #1) > Please test 1.4.0 with and without USE=jemalloc. I had to unbundle the > bundled version to use the system version of jemalloc. You missed the d on monkey monkey-1.4.0-use-system-jemalloc.patch should be monkeyd-1.4.0-use-system-jemalloc.patch