Can Emacs deal with segfaults more gracefully (on Mac)

[Ag Ibragimov <agzam.ibragimov@gmail.com>]

After a lengthy hiatus, I am having to work on Mac again. Almost immediately, I stumbled on a problem with crashing Emacs. Long story short (you can read all about it here https://www.reddit.com/r/emacs/comments/1eg9hdg/multilingual_spellchecking_omg_what_a_rabbit_hole), it turned out that a package calls a command-line utility that segfaults in certain cases. This isn't a quest to help me with the problem; I identified and found a workaround for it.

It did make me wonder, though, why did Emacs crash to begin with? Shouldn't it be handling offending subprocesses more gracefully? I think, typically, Emacs (I think) would handle subprocess errors gracefully; my guess is that in this specific case, the error was too severe, or something like that?

Also, I just realized - Emacs almost never (at least I don't remember when that happened to me last time) crashes in Linux. On Mac, it does. Can't say quite often, yet occasionally, that happens.

I'm just curious; is that due to how Emacs runs on Macs, or for some other reasons?