Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: emacs24 (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1260369
Title:
Emacs24 hangs when starting shell
Status in “emacs24” package in Ubuntu:
Confirmed
Bug description:
I'm running emacs24 on an Ubuntu box and displaying back to a Windows
box running Xming.
When I start up emacs24 (with "emacs -q" on the command line) with a remote
display and type "M-x shell" emacs24 will hang, and display the following in
stdout:
(emacs24:1493): GLib-WARNING **: GChildWatchSource: Exit status of a child
process was requested but ECHILD was received by waitpid(). Most likely the
process is ignoring SIGCHLD, or some other thread is invoking waitpid() with a
nonpositive first argument; either behavior can break applications that use
g_child_watch_add()/g_spawn_sync() either directly or indirectly.
If I startup emacs24 without a remote display ("emacs -q -nw") emacs
24 does not hang for "M-x shell".
If I attempt to visit a directory (with dired) emacs24 will hang, and display
the following on stdout:
(emacs:2331): GLib-WARNING **: GChildWatchSource: Exit status of a child
process was requested but ECHILD was received by waitpid(). Most likely the
process is ignoring SIGCHLD, or some other thread is invoking waitpid() with a
nonpositive first argument; either behavior can break applications that use
g_child_watch_add()/g_spawn_sync() either directly or indirectly.
If I startup emacs24 without a remote display ("emacs -q -nw") emacs
24 does not hang for dired.
If I startup emacs24 with my remote display and type "M-x compile" it
hangs. Without the remote display it does not hang.
In the shell case, the process tree looks like this:
1273 14063 14063 14063 ? -1 Ss 0 0:00 \_ sshd: rzeh [priv]
14063 14078 14063 14063 ? -1 S 10021 0:06 | \_ sshd:
rzeh@pts/3
14078 14079 14079 14079 pts/3 4413 Ss 10021 0:00 | \_ -bash
14079 3880 3880 14079 pts/3 4413 Sl 10021 0:00 | \_
emacs24 -q
3880 4411 4411 4411 ? -1 Zs 10021 0:00 | | \_
[bash] <defunct>
14079 4413 4413 14079 pts/3 4413 R+ 10021 0:00 | \_ ps
axjf -Urzeh
The defunct bash shell is an emacs24 child.
My environment has NO_AT_BRIDGE set to 1, to avoid the accessibility
bus warnings. Unsetting the environment variable doesn't eliminate
the hangs.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: emacs24 24.2+1-2ubuntu2
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.5
Architecture: amd64
Date: Thu Dec 12 09:05:38 2013
InstallationDate: Installed on 2013-10-04 (68 days ago)
InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64
(20130423.1)
MarkForUpload: True
ProcEnviron:
LD_LIBRARY_PATH=<set>
TERM=xterm
PATH=(custom, no user)
SHELL=/bin/bash
SourcePackage: emacs24
UpgradeStatus: No upgrade log present (probably fresh install)
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