> I worked from the executable provided by SIOU, first interactively under GDB (but it nearly drove me crazy, as I had to wait sometimes one hour to trigger the crash again), then using a little OCaml script that ran the program 1000 times and saved the core dumps produced at every crash.
rr can often be a time-saver in situations by providing deterministic replays up to the point of a crash, whereas coredump analysis is a single retrospective snapshot.