Comment 11 for bug 795871

Hi,

I would like to share some informations with you related to this bug. I am working on Ubuntu 11.04 and I reproduce the bug not directly with the nm-applet but in a different context when I try to link a basic QT application with an other library (in my case the Orfeo ToolBox library).

Basically, the declaration of a QApplication app(argc, argv) linked with an other library provoke the same crash with SIGSEGV in g_hash_table_foreach(). Note that if I call the program through a remote terminal (with ssh for example) the problem does not appear.

I'm really stuck in finding from where the problem can come from. I'll be interested if you have information on how this bug was solved in the case of the nm-applet (I saw similar problems with other Ubuntu applications like empathy, ekiga but I didn't find really informations on where the problem comes from (the shared library? glib? Qt?...)

Thank you in advance.

the corresponding backtrace:

0x00007fffe76c5a00 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#1 0x00007fffe7bc9473 in g_hash_table_foreach () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007fffe76c7980 in g_param_spec_pool_list () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#3 0x00007fffe76bcfe4 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#4 0x00007fffe76da333 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#5 0x00007fffe76dcf44 in g_type_class_ref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#6 0x00007fffe76c11be in g_object_new_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#7 0x00007fffe76c1621 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#8 0x00007fffd720012b in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9 0x00007fffd720732b in g_bus_get_sync () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00007fffd749ab54 in ?? () from /usr/lib/libgconf-2.so.4
#11 0x00007fffd749adc2 in gconf_activate_server () from /usr/lib/libgconf-2.so.4
#12 0x00007fffd74a48b4 in ?? () from /usr/lib/libgconf-2.so.4
#13 0x00007fffd74a517f in ?? () from /usr/lib/libgconf-2.so.4
#14 0x00007fffd74a5674 in gconf_engine_get_default () from /usr/lib/libgconf-2.so.4
#15 0x00007fffd74ab671 in gconf_client_get_default () from /usr/lib/libgconf-2.so.4
#16 0x00007fffed9c2aa3 in ?? () from /usr/lib/libQtGui.so.4
#17 0x00007fffed6b648b in ?? () from /usr/lib/libQtGui.so.4
#18 0x00007fffed63e4f6 in QApplicationPrivate::construct(_XDisplay*, unsigned long, unsigned long) () from /usr/lib/libQtGui.so.4
#19 0x00007fffed63edd1 in QApplication::QApplication(int&, char**, int) () from /usr/lib/libQtGui.so.4
#20 0x000000000041b078 in otbWrapperQtWidgetParameterGroup (argc=1, argv=0x7fffffffddc0) at /home/grizonnetm/projets/otb/src/OTB/Testing/Code/Wrappers/Qt/otbWrapperQtWidgetParameterFactory.cxx:140
#21 0x0000000000415e2c in main (ac=2, av=0x7fffffffddb8) at /home/grizonnetm/projets/otb/src/OTB/Code/Testing/otbTestMain.h:295

Manuel