Gnome-panel hangs

[Luke Whitmore]

Binary package hint: gnome-panel

Gnome-panel application appears unresponsive. Problem occurs intermittently.

Issuing a 'pkill gnome-panel' command temporarily solves the problem (by forcing the gnome-panel to reload).

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
Package: gnome-panel 1:2.26.0-0ubuntu5
ProcEnviron:
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-panel
Uname: Linux 2.6.28-11-generic i686

[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.

[Luke Whitmore (lwhitmore)]

More info about the problem:

Seems to be related to the left half of the screen... panel widgets which
exist in the right hand of the screen are still accessible.

However no panel widget can be removed or moved.

I can trigger the problem by launching an application or accessing a dialog
from one of the installed widgets.

Sorry, haven't produced a backtrace yet; because the gnome-panel application
is automatically respawned I can't launch it using gdb... do you have any
advice on this?

On Mon, Apr 6, 2009 at 9:54 AM, Sebastien Bacher <email address hidden> wrote:

> 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.
>
> ** Changed in: gnome-panel (Ubuntu)
> Importance: Undecided => Medium
>
> ** Changed in: gnome-panel (Ubuntu)
> Status: New => Incomplete
>
> ** Changed in: gnome-panel (Ubuntu)
> Assignee: (unassigned) => Ubuntu Desktop Bugs (desktop-bugs)
>
> --
> Gnome-panel hangs
> https://bugs.launchpad.net/bugs/355915
> You received this bug notification because you are a direct subscriber
> of the bug.
>

--
Luke Whitmore

UK Landline: [phone]

[Sebastien Bacher (seb128)]

the wiki page has instructions on how to get a stacktrace for a running software

[Luke Whitmore (lwhitmore)]

Here's the strace... let me know if I need to do anything else.

Luke

On Tue, Apr 7, 2009 at 5:54 PM, Sebastien Bacher <email address hidden> wrote:

> the wiki page has instructions on how to get a stacktrace for a running
> software
>
> --
> Gnome-panel hangs
> https://bugs.launchpad.net/bugs/355915
> You received this bug notification because you are a direct subscriber
> of the bug.
>

--
Luke Whitmore

UK Landline: [phone]

[Sebastien Bacher (seb128)]

that's a strace log and not useful there, did you read the wiki page indicated before? it's about using gdb to get a backtrace

[Luke Whitmore (lwhitmore)]

I read the wiki - it doesn't mention a 'stacktrace' .. only a backtrace. As
I mentioned earlier, I can't use gdb to run gnome-panel (to produce a
backtrace) because the program is restarted automatically as soon as I kill
it.

What do you suggest?

(Sorry, producing debugging logs is new to me.. might be to provide more
explanation)

On Tue, Apr 7, 2009 at 6:29 PM, Sebastien Bacher <email address hidden> wrote:

> that's a strace log and not useful there, did you read the wiki page
> indicated before? it's about using gdb to get a backtrace
>
> --
> Gnome-panel hangs
> https://bugs.launchpad.net/bugs/355915
> You received this bug notification because you are a direct subscriber
> of the bug.
>

--
Luke Whitmore

UK Landline: [phone]

[Sebastien Bacher (seb128)]

would be interesting to know what is not clear there, https://wiki.ubuntu.com/DebuggingProgramCrash has "Now you make a Backtrace. " which leads to https://wiki.ubuntu.com/Backtrace which has detailed explanation on how to get a backtrace of already running software, did you try to do what is detailed there? what issue do you get?

[Luke Whitmore (lwhitmore)]

From https://wiki.ubuntu.com/Backtrace:

I carried out the instructions under the 'already running programs'
sections.

I get to point 5.

The program will continue running. Perform any actions necessary to
reproduce the crash. If the program hangs but doesn't crash you can press
ctrl+c in gdb while the program is frozen and then continue with the next
step.

I ctrl+c in gdb but this exits from the gdb interface. It then seems
impossible to continue with the instructions listed.

Could this be because a subcomponent of the gnome-panel system is hanging
rather than the actual gnome-panel application? If this is the case, how
should I proceed?

thx

luke

On Tue, Apr 7, 2009 at 8:43 PM, Sebastien Bacher <email address hidden> wrote:

> would be interesting to know what is not clear there,
> https://wiki.ubuntu.com/DebuggingProgramCrash has "Now you make a
> Backtrace. " which leads to https://wiki.ubuntu.com/Backtrace which has
> detailed explanation on how to get a backtrace of already running
> software, did you try to do what is detailed there? what issue do you
> get?
>
> --
> Gnome-panel hangs
> https://bugs.launchpad.net/bugs/355915
> You received this bug notification because you are a direct subscriber
> of the bug.
>

--
Luke Whitmore

UK Landline: [phone]

[Luke Whitmore (lwhitmore)]

gnome-panel just hung again. I checked in top, and it was using 85% of the
CPU and approx. 255MB of ram.

if there's a way I can use backtrace to successfully obtain the required
info, please let me know.

On Tue, Apr 7, 2009 at 9:23 PM, Luke Whitmore <email address hidden> wrote:

> From https://wiki.ubuntu.com/Backtrace:
>
> I carried out the instructions under the 'already running programs'
> sections.
>
> I get to point 5.
>
> The program will continue running. Perform any actions necessary to
> reproduce the crash. If the program hangs but doesn't crash you can press
> ctrl+c in gdb while the program is frozen and then continue with the next
> step.
>
> I ctrl+c in gdb but this exits from the gdb interface. It then seems
> impossible to continue with the instructions listed.
>
> Could this be because a subcomponent of the gnome-panel system is hanging
> rather than the actual gnome-panel application? If this is the case, how
> should I proceed?
>
> thx
>
> luke
>
>
> On Tue, Apr 7, 2009 at 8:43 PM, Sebastien Bacher <email address hidden>wrote:
>
>> would be interesting to know what is not clear there,
>> https://wiki.ubuntu.com/DebuggingProgramCrash has "Now you make a
>> Backtrace. " which leads to https://wiki.ubuntu.com/Backtrace which has
>> detailed explanation on how to get a backtrace of already running
>> software, did you try to do what is detailed there? what issue do you
>> get?
>>
>> --
>> Gnome-panel hangs
>> https://bugs.launchpad.net/bugs/355915
>> You received this bug notification because you are a direct subscriber
>> of the bug.
>>
>
>
>
> --
> Luke Whitmore
>
> UK Landline: [phone]
>
>

--
Luke Whitmore

UK Landline: [phone]

[Luke Whitmore (lwhitmore)]

I've found that the problem occurs when I have a panel located on the
left-side of my gnome viewport.

After moving the panel back to it's initial location at the bottom of the
screen, the problem cleared up.

Luke

On Fri, Apr 10, 2009 at 2:10 AM, Luke Whitmore <email address hidden> wrote:

> gnome-panel just hung again. I checked in top, and it was using 85% of the
> CPU and approx. 255MB of ram.
>
> if there's a way I can use backtrace to successfully obtain the required
> info, please let me know.
>
>
> On Tue, Apr 7, 2009 at 9:23 PM, Luke Whitmore <email address hidden> wrote:
>
>> From https://wiki.ubuntu.com/Backtrace:
>>
>> I carried out the instructions under the 'already running programs'
>> sections.
>>
>> I get to point 5.
>>
>> The program will continue running. Perform any actions necessary to
>> reproduce the crash. If the program hangs but doesn't crash you can press
>> ctrl+c in gdb while the program is frozen and then continue with the next
>> step.
>>
>> I ctrl+c in gdb but this exits from the gdb interface. It then seems
>> impossible to continue with the instructions listed.
>>
>> Could this be because a subcomponent of the gnome-panel system is hanging
>> rather than the actual gnome-panel application? If this is the case, how
>> should I proceed?
>>
>> thx
>>
>> luke
>>
>>
>> On Tue, Apr 7, 2009 at 8:43 PM, Sebastien Bacher <email address hidden>wrote:
>>
>>> would be interesting to know what is not clear there,
>>> https://wiki.ubuntu.com/DebuggingProgramCrash has "Now you make a
>>> Backtrace. " which leads to https://wiki.ubuntu.com/Backtrace which has
>>> detailed explanation on how to get a backtrace of already running
>>> software, did you try to do what is detailed there? what issue do you
>>> get?
>>>
>>> --
>>> Gnome-panel hangs
>>> https://bugs.launchpad.net/bugs/355915
>>> You received this bug notification because you are a direct subscriber
>>> of the bug.
>>>
>>
>>
>>
>> --
>> Luke Whitmore
>>
>> UK Landline: [phone]
>>
>>
>
>
> --
> Luke Whitmore
>
> UK Landline: [phone]
>
>

--
Luke Whitmore

UK Landline: [phone]

[Sebastien Bacher (seb128)]

could you try on jaunty and open a bug on bugzilla.gnome.org if that's still an issue?

[silviop (far5893)]

It is still present in Janunty if you put panel left side it hang.

Thank