/usr/bin/twinkle:11:QBasicAtomicOps:QBasicAtomicInteger:QtSharedPointer::ExternalRefCountData::getAndRef:QWeakPointer:QPointer

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding twinkle. This problem was most recently seen with package version 1:1.9.0+dfsg-3, the problem page at https://errors.ubuntu.com/problem/a45473614cc4679d018ae4d6e0290d08524b768e contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker you can request it at http://forms.canonical.com/reports/.

[Rolf Leggewie (r0lf)]

These automated reports aren't helpful. Please stop.

[Brian Murray (brian-murray)]

Because you cannot access the Error Tracker they may seem like noise to
you, however many people have access to the Error Tracker and to them
this report would be useful. By setting this bug's state to Invalid you
are by default hiding it from everybody which is not helpful.

If you want to request access to the Ubuntu Error Tracker you can do so
here:

https://forms.canonical.com/reports/

The link to that form appears on the page at the Ubuntu Error Tracker to
which you were directed, additionally that link is now included in the
bug description when a bug is created by the Error Tracker.

[Frédéric Brière (fbriere)]

This would appear to be a (now resolved) Qt bug, specifically QTBUG-48391[1]. The backtrace here (35 frames of Qt on top of Twinkle's run() method) looks eerily identical to the one in QTBUG-48391 (save for two extra frames at the top in our case). For the record, the fix[2] seems to have made it in Qt 5.9.

[1] https://bugreports.qt.io/browse/QTBUG-48391
[2] https://codereview.qt-project.org/c/qt/qtbase/+/188320

[Frédéric Brière (fbriere)]

Reassigning to qtdeclarative-opensource-src; I'll let them confirm in which version the fix was introduced.

[Dmitry Shachnev (mitya57)]

https://codereview.qt-project.org/c/qt/qtbase/+/188320 says that the fix is included in Qt 5.9.0 and later versions (see the “Included in” button).

As the latest Ubuntu LTS release has Qt 5.9.5, I think we can close this.