maximus crashed with SIGSEGV in g_closure_invoke()

[Spider]

Binary package hint: maximus

Random crash when alt+tabbing

ProblemType: Crash
Architecture: i386
CrashCounter: 1
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/maximus
Package: maximus 0.4.8-0ubuntu1
ProcCmdline: maximus
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: maximus
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/libwnck-1.so.22
 g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
Title: maximus crashed with SIGSEGV in g_closure_invoke()
Uname: Linux 2.6.28-11-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:_window_set_decorations (window=0x8e2b3f0,
_wnck_marshal_VOID__FLAGS_FLAGS (closure=0x8e3aef0,
IA__g_closure_invoke (closure=0x8e3aef0, return_value=0x0,
signal_emit_unlocked_R (node=0x8e24698, detail=0,
IA__g_signal_emit_valist (instance=0x8e2b3f0,

[Neil J. Patel (njpatel)]

I've made a snapshot of bzr, which contains some additional code to add robustness to functions that deal with libwnck. Although it's not a proper fix for this bug (although they may stop maximus from crashing), they will hopefully signal where/how the error is occurring in Maximus/libwnck.

I've attached a .deb of this snapshot to the bug and would be very grateful for those of you suffering from this issue to install it to see if it reduces the issue or not.

If you download and install the deb, restarting afterward will provide you with a clean environment to test in. Regardless of whether the package fixes the issue, please attach your ~/.xsession-errors file to this bug after an hour or so of use (or if maximus still crashes, straight after the crash). This is because it may provide some valuable information.

Thanks.

[Ian Lawrence (ianlawrence)]

Hi
> If you download and install the deb, restarting afterward will provide
> you with a clean environment to test in. Regardless of whether the
> package fixes the issue, please attach your ~/.xsession-errors file to
> this bug after an hour or so of use (or if maximus still crashes,
> straight after the crash). This is because it may provide some valuable
> information.

It might be worthwhile sending this information to the ubuntu-mobile
mailing list too

Regards
Ian

--
http://ianlawrence.info

[Neil J. Patel (njpatel)]

Good idea, message posted.

[Launchpad Janitor (janitor)]

This bug was fixed in the package maximus - 0.4.9-0ubuntu2

---------------
maximus (0.4.9-0ubuntu2) karmic; urgency=low

  * New patch, 60_libwnck-robustness, some robustness changes and a fix for
    libwnck handling code pathes; from lp:maximus r95; LP: #351527.
  * Bump up Standards-Version to 3.8.3.
  * Wrap build-deps and deps.

 -- Loic Minier <email address hidden> Fri, 28 Aug 2009 12:18:44 +0200

[andrew brown (arnie-geek)]

Updated about 08:00 GMT (UST)

uploaded the crash info and added xsession-error.

Some of the games don't seem to be exiting as expected

[Mark Cariaga (mzc)]

crash report just popped up..

[Neil J. Patel (njpatel)]

I'm currently testing an approach which moves the setting of new flags on a window outside of the function that is called when they are changed initially, specifically, moving the functions that maximise/unmaximise and decorate/undecorate into idle functions that are called once the signal from Wnck notifying us of the state change on a window has had time to complete it's emission.

This also has the added benefit of the g_main_context rolling again, and Wnck being allowed to receive more info from Xorg (including if a WnckWindow has been closed).

As I said, I am testing these changes now to make sure that there are not regressions, after that I'll commit and make a release.

[Harry Rickards (hrickards)]

Where is the fix released?

[Ian Lawrence (ianlawrence)]

On Fri, Oct 2, 2009 at 4:20 PM, Harry Rickards <email address hidden> wrote:
> Where is the fix released?
https://edge.launchpad.net/maximus/0.4/ubuntu-9.10

--
http://ianlawrence.info

[Harry Rickards (hrickards)]

Oh yeah. Thanks.