On Wed, Jul 14 2021, Jeremie Courreges-Anglas <j...@wxcvbn.org> wrote:
> Since ~4 years I've received reports of emacs hanging in certain
> situations, without a good hint about what was wrong.
>
> https://marc.info/?l=openbsd-ports&m=150996114220295&w=2
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=29170
>
> Yesterday evening Gregoire wanted to nail down this bug and after
> refreshing our memories of this problem we tried disabling the
> broken-SIGIO-workaround contained in configure. This workaround was
> previously introduced by mikeb@ in 2011. I hope that this workaround is
> currently doing more harm than good, and that ditching it will fix the
> various hangs reported in the few last years.
>
> So folks (cc'd or not), please test this and report back.
I have committed this diff, I hope it will not bite us later.
Thanks a lot. :)
> Index: Makefile
> ===================================================================
> RCS file: /d/cvs/ports/editors/emacs/Makefile,v
> retrieving revision 1.100
> diff -u -p -r1.100 Makefile
> --- Makefile 13 Jul 2021 08:37:57 -0000 1.100
> +++ Makefile 13 Jul 2021 23:37:24 -0000
> @@ -4,7 +4,7 @@ COMMENT= GNU editor: extensible, custom
>
> VERSION= 27.2
> DISTNAME= emacs-${VERSION}
> -REVISION= 0
> +REVISION= 1
>
> CATEGORIES= editors
>
> Index: patches/patch-configure
> ===================================================================
> RCS file: /d/cvs/ports/editors/emacs/patches/patch-configure,v
> retrieving revision 1.20
> diff -u -p -r1.20 patch-configure
> --- patches/patch-configure 23 Aug 2020 09:55:01 -0000 1.20
> +++ patches/patch-configure 14 Jul 2021 17:45:18 -0000
> @@ -1,11 +1,27 @@
> $OpenBSD: patch-configure,v 1.20 2020/08/23 09:55:01 jca Exp $
>
> +Don't disable SIGIO, it looks like an old workaround and it's suspected
> +to be harmful.
> + https://marc.info/?l=openbsd-ports&m=150996114220295&w=2
> + https://debbugs.gnu.org/cgi/bugreport.cgi?bug=29170
> +Introduced in:
> + https://marc.info/?l=openbsd-ports&m=130019184729434&w=2
> +
> Use posix_openpt(3).
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=42059
>
> Index: configure
> --- configure.orig
> +++ configure
> +@@ -19578,7 +19578,7 @@ esac
> + emacs_broken_SIGIO=no
> +
> + case $opsys in
> +- hpux* | nacl | openbsd | sol2* | unixware )
> ++ hpux* | nacl | sol2* | unixware )
> + emacs_broken_SIGIO=yes
> + ;;
> +
> @@ -19668,12 +19668,12 @@ case $opsys in
>
> ;;
--
jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE
