Re: gnus in emacs 26 ok?

[Greg Troxel <gdt@lexort.com>]

Greg Troxel <gdt@lexort.com> writes:

> I just updated from emacs 25 to 26, and hence updated gnus.  I use gnus,
> against a dovecot imap server on localhost.  Generally things have been
> fine; I've been using gnus like this since about 2005.  Host is NetBSD,
> but that seems unlikely to matter.
>
> After updating, I am observing that on displaying some messages
> (articles :-) emacs seems to hang, and ^G results in seeing something
> that looks like source.  Another issue is that after typing 'f' to
> create a reply-all buffer, C-c C-y to quote the article results in 100%
> cpu usage with ^G not interrupting.

Thanks to all for the comments.  Some updates:

  I have gone from 26 to 25 and 24, being sure to rebuild all my
  out-of-emacs elc files (org, bbdb).  Didn't seem to help.

  I am no longer seeing the articles hanging, but I am seeing emacs at
  100% cpu after quoting an article ('f', 'c-c c-y').   I sent SIGUSR2,
  and got a backtrace showing font-lock.  This is repeatable.

  So my theory is that font-lock on-the-fly in a quoted reply is going
  bad.

  I've tried to reduce everything I could, and am flailing a bit, but
  commenting this out seems to have helped:
     ;(modify-syntax-entry ?_ "w" text-mode-syntax-table)
  I was trying to get foo_bar treated as a word (in c), and can live
  without that.

I'll check on the shr issue, and follow up if I find anything
definitive.