Note that large stacks only use address space, not memory, so it's not such a problem (especially on 64-bit). I've never used libmill but from a glance at the

Note that large stacks only use address space, not memory, so it's not such a problem (especially on 64-bit). I've never used libmill but from a glance at the docs it appears they suggest using multiple processes for parallelism, not multiple threads, so there is no such thing as a data race.