Subject: bug#33014: 26.1.50; 27.0.50; Fatal error after re-evaluating a thread's function

From: Gemini Lasswell <[email-masked]>
Date: Thu, 01 Nov 2018 16:15:21 -0700

Paul Eggert <[email-masked]> writes:

> A simple way to ensure that the constant vector survives GC is to have
> exec_byte_code put the vector into a GC-visible slot. As it happens,
> there's a spare slot that we can appropriate, so this won't cost us
> stack (or heap) space. I installed the first attached patch into
> master to do that, and backported the patch series into emacs-26 via
> the last two attached patches.

Thanks.  I ran through all my methods of reproducing this bug on both
emacs-26 and master, and saw no more problems.