Stackoverflow with latest git head

#220 0x00007ffff5d021a6 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 (gdb) #221 0x00007ffff5d086fb in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 (gdb) #222 0x00007ffff582f06c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4 (gdb) #223 0x00007ffff5d4da05 in QWidget::setToolTip(QString const&) () from /usr/lib/libQtGui.so.4 (gdb) #224 0x0000000000589e43 in GUIUtil::ToolTipToRichTextFilter::eventFilter(QObject*, QEvent*) () (gdb) #225 0x00007ffff582e54b in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4 (gdb) #226 0x00007ffff5d021a6 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 (gdb)

The above is the loop that bitcoin seems to be stuck in. I ran git-bisect and it looks like the first bad commit is 3793fa09ff920fc720dfad3738f105d2c9563662

My QT version is 4.6.2

Give me a shout if there are any other tests you want me to run.