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On Linux you could try using the Fast Reversible Debugger (https://github.com/fred-dbg/fred) for its memory-accurate record/replay feature. Full disclosure: I was a contributor on that project at one point.

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I haven't tried it yet myself, but supposedly GDB has supported reversible debugging since 2009[0] — any experience with that? Limitations?

[0]: https://www.gnu.org/software/gdb/news/reversible.html

I've never heard of DMTCP or FReD. It sounds interesting. Have you thought of submitting it to HN?

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