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

From: Eli Zaretskii <[email-masked]>
Date: Sat, 30 Jul 2016 21:02:54 +0300

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

In what image? the one posted here or the one in
https://github.com/djcb/mu/issues/880?

>  >> #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.

Or it could be part of an infloop that has nothing to do with
assq_no_quit.

Btw, line 1452 in fns.c is not in assq_no_quit, not in any Emacs 24.x
version (the bug is reported for 24.5).  In 25.1, line 1452 is indeed
inside assq_no_quit, so perhaps the version and/or line numbers are
reported incorrectly.