Crash when trying to follow symbol (F2) which is a multiply-implemented virtual method

[John Frankland]

Ubuntu 16.04 (recently upgraded from 15.10), using Cinnamon desktop

Since the upgrade, when using F2 in a C++ project to jump to the implementation of a method,
if the method is virtual & several implementations are possible (access through a base pointer),
when I double click in the pop-up list of methods I get the following crash (backtrace from gdb):

$ gdb qtcreator
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Reading symbols from qtcreator...Reading symbols from /usr/lib/debug/.build-id/b4/16f4ebeb9e4866e12e8e74be0b9216533e8573.debug...done.
done.
(gdb) run
Starting program: /usr/bin/qtcreator
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffec94a700 (LWP 13352)]
[New Thread 0x7fffde167700 (LWP 13353)]
[New Thread 0x7fffdd966700 (LWP 13354)]
[New Thread 0x7fffdd165700 (LWP 13355)]
[Thread 0x7fffdd165700 (LWP 13355) exited]
[New Thread 0x7fffdd165700 (LWP 13362)]
[New Thread 0x7fffbd925700 (LWP 13364)]
[New Thread 0x7fffb7fff700 (LWP 13389)]
[New Thread 0x7fffb77fe700 (LWP 13447)]
[New Thread 0x7fffb5014700 (LWP 13448)]
[Thread 0x7fffb5014700 (LWP 13448) exited]

Thread 1 "qtcreator" received signal SIGSEGV, Segmentation fault.
0x00007ffff6dc3a6a in QtSharedPointer::ExternalRefCountData::getAndRef(QObject const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
(gdb) bt
#0 0x00007ffff6dc3a6a in QtSharedPointer::ExternalRefCountData::getAndRef(QObject const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1 0x00007ffff73238e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#2 0x00007ffff7325b3b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#3 0x00007ffff72c605c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#4 0x00007ffff72cb516 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#5 0x00007ffff6f1b62b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007ffff5cc1888 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) ()
   from /usr/bin/../lib/x86_64-linux-gnu/qtcreator/../libQt5Gui.so.5
#7 0x00007ffff5cc31e5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) ()
   from /usr/bin/../lib/x86_64-linux-gnu/qtcreator/../libQt5Gui.so.5
#8 0x00007ffff5ca6f38 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/bin/../lib/x86_64-linux-gnu/qtcreator/../libQt5Gui.so.5
#9 0x00007ffff018af10 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#10 0x00007ffff53ac127 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007ffff53ac380 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007ffff53ac42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007ffff6f71a7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007ffff6f18dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007ffff6f20e8c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x0000000000408c19 in main (argc=1, argv=<optimized out>) at /build/qtcreator-jrmbIB/qtcreator-3.5.1+dfsg/src/app/main.cpp:526

[Pander (pander)]

Is this still valid? Can you reproduce this with latest version from Qt (upstream)? If yes, better report this upstream and close this one please (or link to the report there).

[John Frankland (frankland)]

No longer a problem. How do I close the bug?