Bug#612030: mumble: segfault on audio statistics

[Timo Juhani Lindfors]

Here's a backtrace with mumble-dbg installed:

(gdb) bt full
#0  0xb6103666 in glFinish () from /usr/lib/libGL.so.1
No symbol table info available.
#1  0xb6ff2955 in QGLWidget::event(QEvent*) () from /usr/lib/libQtOpenGL.so.4
No symbol table info available.
#2  0xb66815cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#3  0xb66881f9 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#4  0xb62e44cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#5  0xb66de27b in QWidgetPrivate::hideChildren(bool) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#6  0xb66de3bc in QWidgetPrivate::hide_helper() () from /usr/lib/libQtGui.so.4
No symbol table info available.
#7  0xb66e7ae0 in QWidget::setVisible(bool) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#8  0x080da44e in AudioStats (this=0x9da9bc8, p=0x99e98d0) at AudioStats.cpp:326
        ai = {px = 0x9b75788, pn = {pi_ = 0x9b8b500}}
#9  0x080f1654 in MainWindow::on_qaAudioStats_triggered (this=0x99e98d0) at MainWindow.cpp:1690
No locals.
#10 0x081fcccd in MainWindow::qt_metacall (this=0x99e98d0, _c=QMetaObject::InvokeMetaMethod, _id=-8, _a=0xbff84e98) at release/moc_MainWindow.cpp:271
No locals.
#11 0xb62e97aa in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#12 0xb62f81bb in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#13 0xb667acc9 in QAction::triggered(bool) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#14 0xb667cebc in QAction::activate(QAction::ActionEvent) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#15 0xb6b1e0ff in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#16 0xb6b245ab in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#17 0xb6b255f7 in QMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#18 0xb66df7c8 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#19 0xb6b26bfc in QMenu::event(QEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#20 0xb66815cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#21 0xb6688af7 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#22 0xb62e44cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#23 0xb6687a52 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#24 0xb6713268 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#25 0xb6712253 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#26 0xb6740372 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#27 0xb5d72305 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
No symbol table info available.
#28 0xb5d75fe8 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#29 0xb5d761c8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
No symbol table info available.
#30 0xb6310075 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#31 0xb673fed5 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#32 0xb62e2ae9 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#33 0xb62e2f3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#34 0xb62e816f in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
No symbol table info available.
#35 0xb6681667 in QApplication::exec() () from /usr/lib/libQtGui.so.4
No symbol table info available.
#36 0x080eacc4 in main (argc=-1074240984, argv=0xbff86374) at main.cpp:414
        res = <value optimized out>
        a = {<> = {<No data fields>}, <No data fields>}
        url = {d = 0x0}
        qsSystemLocale = {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 1499}, alloc = 0, size = 0, data = 0x83cf5fa, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 3}, alloc = 0, size = 0, data = 0xb63faf8e, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x9a51448, static codecForCStrings = 0x0}
        loctranslator = <incomplete type>
        qttranslator = <incomplete type>
        translator = <incomplete type>
        ai = {px = 0xb5f64ff4, pn = {pi_ = 0x9985818}}
        ao = {px = 0x10, pn = {pi_ = 0xb5f663a0}}
        bAllowMultiple = false
        locale = {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 1499}, alloc = 0, size = 0, data = 0x83cf5fa, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, static shared_empty = {ref = {_q_value = 3}, alloc = 0, size = 0, data = 0xb63faf8e, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x9a51448, static codecForCStrings = 0x0}