Re: custom mode-line face makes Emacs freeze up

[Richard Stallman]

I tried this recipe but it did not freeze for me.  Perhaps it doesn't
freeze for all files, perhaps it depends on the files.  (I tried with
emacs.c and cmds.c from emacs/src.)

So I guess the bug depends on some conditions that vary.

This appears to be a case of looping.  So could you try investigating
it with the methods described in etc/DEBUG for "If the symptom of the
bug is that Emacs fails to respond"?  Maybe you will get enough info
that we can fix it.