gnome-panel hangs when placed on bottom and enabling autohide

[Søren Kongstad]

Binary package hint: gnome-panel

On a karmic koala updated from 9.04 via the beta the following problem occurs:

When the panel is placed at the bottom and autohide is enabled, the panel hangs

On reboot Xorg and gnome-panel uses 100% CPU and hogs the memory (500+mb each and rising).

I have to remove the setu by
gconftool-2 --shutdown && rm -rf ~/.gconf/apps/panel && pkill gnome-panel

Steps to reproduce:
1. Place panel at bottom
2. Enable autohide

When then panel is at the top autohide works

---
Description: Ubuntu 9.10
Release: 9.10

gnome-panel:
  Installeret: 1:2.28.0-0ubuntu6
  Kandidat: 1:2.28.0-0ubuntu6
  Versionstabel:
 *** 1:2.28.0-0ubuntu6 0
        500 http://dk.archive.ubuntu.com karmic/main Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
Architecture: i386
CheckboxSubmission: 28e79635245c875582621cb1dfef0bfa
CheckboxSystem: 71b45ac0ffa2f3817f2caf89cce72a40
Date: Fri Nov 13 00:45:06 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/gnome-panel
NonfreeKernelModules: nvidia
Package: gnome-panel 1:2.28.0-0ubuntu6
ProcEnviron:
 LANG=da_DK.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: gnome-panel
Uname: Linux 2.6.31-14-generic i686

[Pedro Villavicencio (pedro)]

Please try to obtain a backtrace manually of the hang following the instructions at http://wiki.ubuntu.com/DebuggingProgramCrash and upload the backtrace (as an attachment) to the bug report. This will greatly help us in tracking down your problem.

[Garden Brooks (sbach)]

Ubuntu forum has this related thread:
http://ubuntuforums.org/showthread.php?t=1312801

[doru001 (headset001)]

I have the same problem, but with clean install, no update.

[Alecz20 (alexguzu)]

This bug is extremely trivial to troubleshoot:

1) Right-click on top panel -> Properties

2) Select Orientation: Bottom

3) Check "Autohide"

4) Click Close

5) Make the panel hide/autohide

Why do we have to make trace if ANYONE can reproduce it? Some of us have no idea how to get the traces, not to mention go through the hassle of recovering the system after doing this steps!

The developers have better chance of fixing this if they do the above steps themselves.