Hi Dima! This looks like https://bugreports.qt.io/browse/QTBUG-58508 to me. According to that bug, it is fixed in Qt 5.11, however the change is too large to backport to 5.9.
Exporting QML_DISABLE_DISK_CACHE=1 should help as a workaround — can you try that? -- 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 : email@example.com Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp