unity-window-decorator crashed with SIGSEGV in g_datalist_id_set_data_full()

[John M.K.]

It just crashed on daily built Ubuntu 11.10 (running on usb stick)

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: compiz-gnome 1:0.9.4+bzr20110606-0ubuntu5
ProcVersionSignature: Ubuntu 3.0-3.4-generic 3.0.0-rc5
Uname: Linux 3.0-3-generic x86_64
Architecture: amd64
Date: Tue Jul 5 19:29:59 2011
ExecutablePath: /usr/bin/unity-window-decorator
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1)
ProcCmdline: /usr/bin/unity-window-decorator
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f4da6f41a85 <g_datalist_id_set_data_full+341>: mov 0x0(%r13),%esi
 PC (0x7f4da6f41a85) ok
 source "0x0(%r13)" (0xaaaaaaaaaaaaaaa8) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 g_datalist_id_set_data_full () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 remove_frame_window ()
 event_filter_func ()
Title: unity-window-decorator crashed with SIGSEGV in g_datalist_id_set_data_full()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 g_data_set_internal (datalist=0x7f4d980064e0, key_id=52, data=0x0, destroy_func=0) at /build/buildd/glib2.0-2.29.8/./glib/gdataset.c:372
 g_datalist_id_set_data_full (datalist=0x7f4d980064e0, key_id=52, data=0x0, destroy_func=0) at /build/buildd/glib2.0-2.29.8/./glib/gdataset.c:673
 g_object_real_dispose (object=0x7f4d980064d0) at /build/buildd/glib2.0-2.29.8/./gobject/gobject.c:895
 g_object_unref (_object=0x7f4d980064d0) at /build/buildd/glib2.0-2.29.8/./gobject/gobject.c:2709
 remove_frame_window (win=<value optimized out>) at /build/buildd/compiz-0.9.4+bzr20110606/unity/unity_window_decorator/src/wnck.c:429

[Beuntje-ict (beuntje-ict)]

1. open VLC
2. select open disc.
VLC hangs and compiz crashed

[Doug McMahon (mc3man)]

Beuntje-ict - you may wish to review this bug & see if that is your issue (11.10 only
if so, read my last comment, (13), concerning re-setting vlc
Bug 805303

[bjv (bjamesv)]

I am also experiencing this fault in g_datalist_id_set_data_full(), it is extremely straightforward to reproduce with Nokia Qt SDK installer

1) download, http://get.qt.nokia.com/qtsdk/Qt_SDK_Lin32_online_v1_1_3_en.run
2) click through the first few screen, (i believe you can ignore warning if no c++ compiler is installed) select EITHER 'default' or 'custom'

unity window decorator will crash on the next dialogue, before installation even begins.

[Doug McMahon (mc3man)]

Glancing thru the dupes on this it appears that this bug & most of it's dupes are related to the bug I previously linked which can also cause unity-window-decorator to crash
Bug 805303
Probably this bug should be duped to it