Public bug reported: This crash has started with Qt 5.5.1 that is more strict with sharing objects between qml engines.
My guess it is something wrong with the theming engine that seems to be a singleton for all qml engines. When running the example that i will attach with QV4_FORCE_INTERPRETER=1 QV4_MM_AGGRESSIVE_GC=1 ./borrame3 in xenial i get $ QV4_FORCE_INTERPRETER=1 QV4_MM_AGGRESSIVE_GC=1 ./borrame3 A B QMetaProperty::read: Unable to handle unregistered datatype 'PaletteValues_QMLTYPE_2*' for property 'Palette_QMLTYPE_3::selected' QMetaProperty::read: Unable to handle unregistered datatype 'PaletteValues_QMLTYPE_2*' for property 'Palette_QMLTYPE_3::selected' QMetaProperty::read: Unable to handle unregistered datatype 'PaletteValues_QMLTYPE_2*' for property 'Palette_QMLTYPE_3::selected' Segmentation fault while vivid+overlay (has qt 5.4) gets me A B C the backtrace of the crash in Xenial is http://paste.ubuntu.com/14086991/ ** Affects: ubuntu-ui-toolkit (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1527546 Title: Crash when having multiple QQuickViews in a row To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1527546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
