GNU bug report logs - #71259
29.1; Tramp connection property "direct-async-process" causes job control not to work in M-x shell buffers

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#71259: closed (29.1; Tramp connection property
 "direct-async-process" causes job control not to work in M-x shell
 buffers)
Date: Sun, 30 Jun 2024 07:39:02 +0000

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Your message dated Sun, 30 Jun 2024 09:38:15 +0200
with message-id <87sewu3moo.fsf <at> gmx.de>
and subject line Re: bug#71259: 29.1; Tramp connection property "direct-async-process" causes job control not to work in M-x shell buffers
has caused the debbugs.gnu.org bug report #71259,
regarding 29.1; Tramp connection property "direct-async-process" causes job control not to work in M-x shell buffers
to be marked as done.

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71259: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=71259
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From: Alex Hutcheson <alexhutcheson <at> google.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.1; Tramp connection property "direct-async-process" causes job
 control not to work in M-x shell buffers
Date: Wed, 29 May 2024 13:55:43 +0000

To reproduce:

1. Start emacs with emacs -Q

2. Eval the following:

(require 'tramp)
;; Enable direct-async-process for all SSH connections
(add-to-list 'tramp-connection-properties
             (list "/ssh:.*" "direct-async-process" t))

3. Start a Tramp SSH connection: C-x C-f /ssh:some.host.com:

4. Start a shell buffer with M-x shell. Choose sh or bash as remote
shell (haven't tested with others)

Expected behavior:

Shell buffer shows a shell on the remote host. Job control (C-c C-z),
fg, bg, etc. all work.

Actual behavior:

Shell buffer starts a shell, but shows errors at the top of the buffer:

sh: cannot set terminal process group (128765): Inappropriate ioctl for  
device
sh: no job control in this shell

Shell mostly works, but job control features don't work.
C-c C-z does nothing
C-c C-c kills the shell, rather than the currently running job
fg and bg give errors like:
sh: fg: no job control

In GNU Emacs 29.1 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo
 version 1.18.0, Xaw3d scroll bars) of 2024-01-22, modified by Debian
 built on kokoro-ubuntu
System Description: Debian GNU/Linux rodete


Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM HARFBUZZ JPEG JSON LCMS2
LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XAW3D XDBE XIM XINPUT2 XPM
LUCID ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

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From: Michael Albinus <michael.albinus <at> gmx.de>
To: 71259-done <at> debbugs.gnu.org
Cc: alexhutcheson <at> google.com
Subject: Re: bug#71259: 29.1; Tramp connection property
 "direct-async-process" causes job control not to work in M-x shell buffers
Date: Sun, 30 Jun 2024 09:38:15 +0200

Version: 30.1

Michael Albinus <michael.albinus <at> gmx.de> writes:

> I could reproduce & fix it in recent Tramp sources. Pushed to the
> repositories.
>
> Unfortunately, the fix cannot be backported to Emacs 29 trivially. So
> you might try either Emacs 30 or Tramp 2.7 from the respective git
> repositories. Or you wait a little bit, until Tramp 2.7.1 appears on GNU
> ELPA. Planned for end of June.

Tramp 2.7.1 has appeared on GNU ELPA. I'm closing this bug therefore.

Best regards, Michael.

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