Thank you very much for the backtrace. It would appear this is actually a bug within Qt (libqt5qml5 from the looks of it). I managed to find a KDE bug[1] with a similar backtrace, and their conclusion was the same (though they pointed to QtQuick as the culprit). In any case, I have reassigned this bug to qtdeclarative- opensource-src.
In the meantime, could you generate another backtrace, this time after installing the libqt5qml5-dbgsym, libqt5widgets5-dbgsym and libqt5core5a-dbgsym packages? This should provide more information to help the Qt team diagnose this bug. Thanks, and good luck! [1] https://bugs.kde.org/show_bug.cgi?id=401686 ** Bug watch added: KDE Bug Tracking System #401686 https://bugs.kde.org/show_bug.cgi?id=401686 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtdeclarative-opensource- src in Ubuntu. https://bugs.launchpad.net/bugs/1824986 Title: twinkle doesn't start (stack smashing detected) (Lubuntu 18.04) Status in qtdeclarative-opensource-src package in Ubuntu: New Status in twinkle package in Ubuntu: New Bug description: The console output: $ twinkle QApplication: invalid style override passed, ignoring it. Language name: "en" mprotect failed in ExecutableAllocator::makeExecutable: Permission denied *** stack smashing detected ***: <unknown> terminated Aborted (core dumped) $ I've attached a strace output file. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: twinkle 1:1.10.1+dfsg-3 ProcVersionSignature: Ubuntu 4.15.0-47.50-generic 4.15.18 Uname: Linux 4.15.0-47-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 CurrentDesktop: LXDE Date: Tue Apr 16 15:29:30 2019 EcryptfsInUse: Yes InstallationDate: Installed on 2018-06-11 (309 days ago) InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) SourcePackage: twinkle UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtdeclarative-opensource-src/+bug/1824986/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
