Re: Crash during access_keymap

[Richard M. Stallman]

    > I don't know -- what is the point of pure space?

    That you don't have to GC it ...

The original point was to share memory between Emacs jobs.
I am not sure that is still very important, but it might be.

    Also in some older systems without copy-on-write, marking the corresponding
    section as read-only allowed it to be shared between instances of the
    Emacs process, but nowadays I can't think of any situation where that would
    be relevant.

Segregating the data that will never be altered would increase sharing
even on systems that have copy-on-write.