bug#30790: Broken Qt 5 in my main profile - Qt DBus ?

[Maxim Cournoyer]

Hi,

Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:

> Hi Danny,
>
> Danny Milosavljevic <dannym@scratchpost.org> writes:
>
>> Hi,
>>
>> seems I broke Qt 5 in my main profile by updating some packages.
>>
>> I've got this situation:
>>
>> /gnu/store/gdcnj399zhkpa5kf2mnzgg9lfb3nnd0h-lyx-2.2.3$ gdb 
>> share/lyx/bin/lyx2.2
>> (gdb) r
>> Cannot mix incompatible Qt library (version 0x50903) with this library 
>> (version 0x50904)
>> Aborted
>> (gdb) bt
>> #0 0x00007ffff50a41e4 in raise () from
>> /gnu/store/4sqaib7c2dfjv62ivrg9b8wa7bh226la-glibc-2.26.105-g0890d5379c/lib/libc.so.6
>> #1 0x00007ffff50a55e5 in abort () from
>> /gnu/store/4sqaib7c2dfjv62ivrg9b8wa7bh226la-glibc-2.26.105-g0890d5379c/lib/libc.so.6
>> #2 0x00007ffff61c5f0e in QMessageLogger::fatal(char const*, ...) const
>> () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #3 0x00007ffff63c5301 in QObjectPrivate::QObjectPrivate(int) () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #4 0x00007fffedaae100 in ?? () from
>> /gnu/store/4if0il1fssgh3zna4b3x9lwbgw49z01m-qtbase-5.9.3/lib/qt5/plugins/platforms/../../../libQt5DBus.so.5
>> #5 0x00007fffedaaeed4 in
>> QDBusAbstractInterface::QDBusAbstractInterface(QString const&, QString
>> const&, char const*, QDBusConnection const&, QObject*) () from
>> /gnu/store/4if0il1fssgh3zna4b3x9lwbgw49z01m-qtbase-5.9.3/lib/qt5/plugins/platforms/../../../libQt5DBus.so.5
>> #6 0x00007fffeda98759 in
>> QDBusConnectionInterface::QDBusConnectionInterface(QDBusConnection
>> const&, QObject*) () from
>> /gnu/store/4if0il1fssgh3zna4b3x9lwbgw49z01m-qtbase-5.9.3/lib/qt5/plugins/platforms/../../../libQt5DBus.so.5
>> #7 0x00007fffeda94d18 in ?? () from
>> /gnu/store/4if0il1fssgh3zna4b3x9lwbgw49z01m-qtbase-5.9.3/lib/qt5/plugins/platforms/../../../libQt5DBus.so.5
>> #8 0x00007fffeda9552d in ?? () from
>> /gnu/store/4if0il1fssgh3zna4b3x9lwbgw49z01m-qtbase-5.9.3/lib/qt5/plugins/platforms/../../../libQt5DBus.so.5
>> #9 0x00007ffff63c88f1 in QObject::event(QEvent*) () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #10 0x00007ffff639dc63 in QCoreApplication::notifyInternal2(QObject*,
>> QEvent*) () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #11 0x00007ffff63a030b in
>> QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*)
>> () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #12 0x00007ffff63f0583 in ?? () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #13 0x00007ffff17cd5c7 in g_main_context_dispatch () from
>> /gnu/store/i1x64fz6m3i1l61vywn5bgdamw0h71c0-glib-2.54.2/lib/libglib-2.0.so.0
>> #14 0x00007ffff17cd808 in g_main_context_iterate.isra () from
>> /gnu/store/i1x64fz6m3i1l61vywn5bgdamw0h71c0-glib-2.54.2/lib/libglib-2.0.so.0
>> #15 0x00007ffff17cd8ac in g_main_context_iteration () from
>> /gnu/store/i1x64fz6m3i1l61vywn5bgdamw0h71c0-glib-2.54.2/lib/libglib-2.0.so.0
>> #16 0x00007ffff63efbcf in
>> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
>> () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #17 0x00007ffff639c25a in
>> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #18 0x00007ffff61d819c in QThread::exec() () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #19 0x00007fffeda939d5 in ?? () from
>> /gnu/store/4if0il1fssgh3zna4b3x9lwbgw49z01m-qtbase-5.9.3/lib/qt5/plugins/platforms/../../../libQt5DBus.so.5
>> #20 0x00007ffff61dcd6a in ?? () from
>> /gnu/store/rr0225gz6qb1j9xwc5iinf1143dg6cw6-qtbase-5.9.4/lib/libQt5Core.so.5
>> #21 0x00007ffff4e594d5 in start_thread () from
>> /gnu/store/4sqaib7c2dfjv62ivrg9b8wa7bh226la-glibc-2.26.105-g0890d5379c/lib/libpthread.so.0
>> #22 0x00007ffff51602cf in clone () from
>> /gnu/store/4sqaib7c2dfjv62ivrg9b8wa7bh226la-glibc-2.26.105-g0890d5379c/lib/libc.so.6
>>
>> So it's apparently Qt DBus related since the version of Qt DBus is 5.9.3 but 
>> the other Qt stuff is 5.9.4.
>>
>> If I unset QT_PLUGIN_PATH, it works.
>>
>> QT_PLUGIN_PATH was:
>>
>> $HOME/.guix-profile/lib/qt5/plugins
>
> I believe the plugins are dynamically loaded, so if you were to have a
> mixture of plugins built against various versions of Qt, problems could
> occur.
>
> I don't see a good solution for that, short of upgrading your whole
> profile.
>
> Unless you have ideas to research to improve this situation, I suggest
> we close this issue.

Closing.

Maxim