>>>>> On Thu, 09 Jan 2020 12:07:54 +0200, Eli Zaretskii <eliz@gnu.org> said:

    Eli> A stab in the dark: does it help to rename the variable 'ok' in face_inherited_attr to some other name, like 'ok1'?

I can try that.

    Eli> Also, can I please see one backtrace with all the call-stack frames,
    Eli> starting from 'main' and ending at 'handle_fatal_signal'?  The
    Eli> original report shows only the top-most 511 frames, and the other one
    Eli> has a lot of ?? (missing symbols) in it.

'bt full' backtrace attached.

    Eli> And finally, are all the crashes inside GC, or do some happen outside it?

Iʼve only seen it inside GC.

Robert