Subject: bug#24109: 24.5; Long lines in message mode make Emacs irresponsive

From: martin rudalics <[email-masked]>
Date: Sat, 30 Jul 2016 19:30:32 +0200

>> The subject header?
 > Which subject header?

The "Subject" header is not left aligned with "Re: bug#24109:" but maybe
that's just an indentation issue.

 >> #0  assq_no_quit (key=key@entry=16848, list=51100227) at fns.c:1452
 >> #1  0x00000000004b24ac in lface_from_face_name_no_resolve (f=f@entry=0x1237f90, face_name=face_name@entry=16848, signal_p=signal_p@entry=false) at xfaces.c:1862
 >>
 >> sounds fishy to me.
 >
 > Please explain why.

Because the OP reported that Emacs became unresponsive and C-g didn't
quit.  If someone's able to catch Emacs in assq_no_quit, this sounds
like a potential culprit to me.

martin