gnome-panel and gedit time out when samba network no longer present

[Rocko]

Binary package hint: gnome-panel

Problem: sometimes when I double-click on a file to open it in gedit, there's a timeout of a minute or so before gedit appears. During this time, gnome-panel is completely unresponsive.

Steps to reproduce:

1. Connect to network A (in this case, my home 11g network with dhcp addresses 10.1.1.x) and connect to another computer using Samba. A desktop icon appears for the link.

2. Suspend and move laptop away from network A. Resume the computer near network B (in this case, my work 11N network with dhcp addresses 10.0.0.x) and make the laptop connect to network B. Note that the desktop icon for the network A Samba link remains.

3. Ensure that no instances of gedit are running and then try to open a text file using gedit.

The timeout occurs at this point.

If I manually unmount the Samba share (right-click on the desktop icon and select 'unmount'), there is no timeout in step 3.

I'm currently using Jaunty with a vanilla kernel 2.6.30-rc6 kernel, but this bug happens also with the standard 2.6.28-12 kernel and I believe it also used to happen in Intrepid. Samba is at version 2:3.3.2-1ubuntu3.

This might be similar to https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/225722.

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: gnome-panel 1:2.26.0-0ubuntu7
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-panel
Uname: Linux 2.6.30-rc6-generic x86_64

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please try to obtain a backtrace 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.

[Rocko (rockorequin)]

Which application shall I get a backtrace on? Nothing crashes, there's just a long delay where I assume something is trying to contact the samba mount.

[Victor Vargas (kamus)]

Since this report have a long time without activity, please could you check (if is possible) in latest version included in Karmic if this issue is still happening? Thanks in advance.

[Rocko (rockorequin)]

Yes, it's still an issue with gnome-panel 1:2.29.92.1-0ubuntu3 in Lucid (and samba 2:3.4.5~dfsg-2ubuntu3).

In my re-test I initially tried (a) connecting to the smb share, (b) suspending the PC, (c) manually disabling the PC's wlan with the kill switch, and (d) restarting: there's no problem if you do it this way. But if you follow (a), (b) and (d) and connect to another network, you get the long delay (timeout, I assume) before gnome-panel becomes responsive.