emerald crashes when launching.

[Martin Constantino–Bodin]

Binary package hint: emerald

Hi!

I’ve done recently the upgrade to natty.
Before that, Emerald was running perfectly.
Now, I just can’t launch it!

We I launch it with “emerald --replace &”, bug-buddy launches and make me a bug repport (in attachment).

It display the following message in the terminal:
“Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Opération non permise.
/home/martin/Bureau/13672: Aucun fichier ou dossier de ce type.
No stack.”

I’ve thus tried it as the root user.
This time, the message is different:
“32 ../sysdeps/unix/sysv/linux/waitpid.c: Aucun fichier ou dossier de ce type.”

The file “/proc/sys/kernel/yama/ptrace_scope” seems to contains only the character “1” following by a new line.
The content of “/etc/sysctl.d/10-ptrace.conf” is (if you skip the commentary) “kernel.yama.ptrace_scope = 1”.
Maybe I should set it to 0?

Anyway, the fact is that I can’t use Emerald now.
It’s not really a problem for me since I can use gt-window-decorator, but that’s unfortunate not to be able to use Emerald. ;)
Maybe it’s because conflicts with Unity?

If you want me to add details on this bug, please ask.

Hoping it will be useful,
Martin.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: emerald 0.7.2-0ubuntu6
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CheckboxSubmission: 01a18e0a74cbde3d34a62f62830ed079
CheckboxSystem: f134069bba098730d27f59b402920826
Date: Wed May 4 21:37:47 2011
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
ProcEnviron:
 LANGUAGE=fr_FR:en
 LANG=fr_FR.utf8
 SHELL=/bin/bash
SourcePackage: emerald
UpgradeStatus: Upgraded to natty on 2011-05-03 (1 days ago)

[Martin Constantino–Bodin (martin-bodin)]

Well, I’m sorry, launchpad does not propose me this other bug, but I think that this bug is in fact a duplicate of bug 733393.
I’ll fix that.
Sorry for the inconvenience.
Martin.