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Bug#1034457: libqt5quick5: Qt segfault on amd64
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Julian Groß
Apr 15, 2023, 6:00:04 PM4/15/23
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Package: libqt5quick5
Version: 5.15.8+dfsg-3
Severity: normal
Dear Maintainer,
we ran into what appears to be a segmentation fault in Qt.
One of the last places it runs into is QQuickOpenGLShaderEffectCommon which is why I am reporting it towards this package.
I dumped a core file from GDB, which should contain everything needed to debug this further, since debugging symbols for pretty much anything Qt are installed.
You can find it here: https://data.moto9000.moe/qt/1/core.191885.tar.xz (12,3 GiB when uncompressed)
I will just put the backtrace in here:
```
#0 0x0000000000000000 in ()
#1 0x00007f8f43eba269 in QMetaObject::cast(QObject const*) const (this=0x7f8f44143140 <QObject::staticMetaObject>, obj=0x55b8ddf56be0) at kernel/qmetaobject.cpp:389
#2 0x00007f8f43eba2a5 in QMetaObject::cast(QObject*) const (this=<optimized out>, obj=<optimized out>) at kernel/qmetaobject.cpp:378
#3 0x00007f8f42b6422a in qobject_cast<QObject*>(QObject*) (object=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:519
#4 QtPrivate::QVariantValueHelper<QObject*>::object(QVariant const&) (v=[Thread 0x7f8e4a7fc6c0 (LWP 192005) exited]
[Thread 0x7f8d7d9c36c0 (LWP 192105) exited]
[New Thread 0x7f8e86ffd6c0 (LWP 195762)]
[New Thread 0x7f8e87fff6c0 (LWP 195761)]
[New Thread 0x7f8e4a7fc6c0 (LWP 195758)]
[Thread 0x7f8e609e56c0 (LWP 192001) exited]
[New Thread 0x7f8f0d3fc6c0 (LWP 195757)]
[Thread 0x7f8e84ff96c0 (LWP 191983) exited]
[Thread 0x7f8e857fa6c0 (LWP 191982) exited]
[Thread 0x7f8e85ffb6c0 (LWP 191981) exited]
[Thread 0x7f8e867fc6c0 (LWP 191980) exited]
[Thread 0x7f8e86ffd6c0 (LWP 191979) exited]
[Thread 0x7f8e877fe6c0 (LWP 191978) exited]
[Thread 0x7f8e87fff6c0 (LWP 191977) exited]
[Thread 0x7f8ea577f6c0 (LWP 191976) exited]
[Thread 0x7f8ea6a8b6c0 (LWP 191975) exited]
[New Thread 0x7f8e877fe6c0 (LWP 195763)]
[Thread 0x7f8f0d3fc6c0 (LWP 191939) exited]
[Thread 0x7f8d5ebff6c0 (LWP 192247) exited]
QVariant(QQuickItem*, 0x55b8ddf56be0)) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvariant.h:753
#5 QtPrivate::ObjectInvoker<QtPrivate::QVariantValueHelper<QObject*>, QVariant const&, QObject*>::invoke(QVariant const&) (a=QVariant(QQuickItem*, 0x55b8ddf56be0)) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvariant.h:107
#6 qvariant_cast<QObject*>(QVariant const&) (v=[New Thread 0x7f8d5ebff6c0 (LWP 195764)]
QVariant(QQuickItem*, 0x55b8ddf56be0)) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvariant.h:879
#7 QQuickOpenGLShaderEffectCommon::disconnectPropertySignals(QQuickItem*, QQuickOpenGLShaderEffectMaterialKey::ShaderType) (this=this@entry=0x55b8e7f311d8, item=0x55b8e7eb0930, shaderType=shaderType@entry=QQuickOpenGLShaderEffectMaterialKey::FragmentShader) at items/qquickopenglshadereffect.cpp:238
#8 0x00007f8f42b65d7a in QQuickOpenGLShaderEffect::~QQuickOpenGLShaderEffect() (this=0x55b8e7f31170, __in_chrg=<optimized out>) at items/qquickopenglshadereffect.cpp:660
#9 0x00007f8f42b65e29 in QQuickOpenGLShaderEffect::~QQuickOpenGLShaderEffect() (this=0x55b8e7f31170, __in_chrg=<optimized out>) at items/qquickopenglshadereffect.cpp:661
#10 0x00007f8f42b5e563 in QQuickShaderEffect::~QQuickShaderEffect() (this=this@entry=0x55b8e7eb0930, __in_chrg=<optimized out>) at items/qquickshadereffect.cpp:535
#11 0x00007f8f42bd0a35 in QQmlPrivate::QQmlElement<QQuickShaderEffect>::~QQmlElement() (this=0x55b8e7eb0930, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#12 QQmlPrivate::QQmlElement<QQuickShaderEffect>::~QQmlElement() (this=0x55b8e7eb0930, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#13 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e4008a00) at kernel/qobject.cpp:2137
#14 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7fd9e40, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#15 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7fd9e40, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#16 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7fd9e40, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#17 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7fd9e40, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#18 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e7fd9960) at kernel/qobject.cpp:2137
#19 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7f5a030, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#20 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7f5a030, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#21 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7f5a030, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#22 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7f5a030, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#23 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e7f59cc0) at kernel/qobject.cpp:2137
#24 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7f59c00, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#25 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7f59c00, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#26 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7f59c00, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#27 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7f59c00, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#28 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e65e0170) at kernel/qobject.cpp:2137
#29 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e65e00b0, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#30 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e65e00b0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#31 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e65e00b0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#32 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e65e00b0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#33 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e7e63650) at kernel/qobject.cpp:2137
#34 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7e63590, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#35 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7e63590, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#36 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7e63590, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#37 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7e63590, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#38 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e7dc7640) at kernel/qobject.cpp:2137
#39 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7dc7580, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#40 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7dc7580, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#41 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7dc7580, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#42 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7dc7580, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#43 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e65b0c20) at kernel/qobject.cpp:2137
#44 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e65b0b60, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#45 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e65b0b60, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#46 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e65b0b60, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#47 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e65b0b60, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#48 0x00007f8f43edd4bf in QObject::event(QEvent*) (this=0x55b8e65b0b60, e=0x55b8e49f8300) at kernel/qobject.cpp:1334
#49 0x00007f8f3f562fae in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55b8c28a1580, receiver=receiver@entry=0x55b8e65b0b60, e=0x55b8e49f8300) at kernel/qapplication.cpp:3640
#50 0x00007f8f3f56a3bd in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7ffd5eca2d80, receiver=receiver@entry=0x55b8e65b0b60, e=e@entry=0x55b8e49f8300) at kernel/qapplication.cpp:3386
#51 0x000055b8c1190609 in Application::notify(QObject*, QEvent*) (this=0x7ffd5eca2d80, object=0x55b8e65b0b60, event=0x55b8e49f8300) at /home/juliangro/git/overte/interface/src/Application.cpp:4223
#52 0x00007f8f43eb16f8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55b8e65b0b60, event=0x55b8e49f8300) at kernel/qcoreapplication.cpp:1064
#53 0x00007f8f43eb18be in QCoreApplication::sendEvent(QObject*, QEvent*) (receiver=<optimized out>, event=<optimized out>) at kernel/qcoreapplication.cpp:1462
#54 0x00007f8f43eb4681 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x55b8c265eb20) at kernel/qcoreapplication.cpp:1821
#55 0x00007f8f43eb4b08 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=<optimized out>, event_type=<optimized out>) at kernel/qcoreapplication.cpp:1680
#56 0x00007f8f43f0a153 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x55b8c2f64780) at kernel/qeventdispatcher_glib.cpp:277
#57 0x00007f8f35d1e7a9 in g_main_dispatch (context=0x55b8c2cb0400) at ../../../glib/gmain.c:3454
#58 g_main_context_dispatch (context=context@entry=0x55b8c2cb0400) at ../../../glib/gmain.c:4172
#59 0x00007f8f35d1ea38 in g_main_context_iterate (context=context@entry=0x55b8c2cb0400, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4248
#60 0x00007f8f35d1eacc in g_main_context_iteration (context=0x55b8c2cb0400, may_block=1) at ../../../glib/gmain.c:4313
#61 0x00007f8f43f09836 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55b8c2fa7f10, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#62 0x00007f8f43eb017b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd5eca2910, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#63 0x00007f8f43eb82d6 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#64 0x00007f8f40d30e8c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1863
#65 0x00007f8f3f562f25 in QApplication::exec() () at kernel/qapplication.cpp:2832
#66 0x000055b8c0fffb27 in main(int, char const**) (argc=<optimized out>, argv=<optimized out>) at /home/juliangro/git/overte/interface/src/main.cpp:648
```
While this doesn't happen every time I can reproduce the issue locally.
-- System Information:
Debian Release: 12.0
APT prefers testing
APT policy: (900, 'testing'), (500, 'testing-security'), (500, 'testing-debug'), (400, 'unstable'), (50, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.1.0-7-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages libqt5quick5 depends on:
ii libc6 2.36-8
ii libqt5core5a [qtbase-abi-5-15-8] 5.15.8+dfsg-3
ii libqt5gui5 5.15.8+dfsg-3
ii libqt5network5 5.15.8+dfsg-3
ii libqt5qml5 [qtdeclarative-abi-5-15-8] 5.15.8+dfsg-3
ii libqt5qmlmodels5 5.15.8+dfsg-3
ii libstdc++6 12.2.0-14
libqt5quick5 recommends no packages.
libqt5quick5 suggests no packages.
-- no debconf information
Version: 5.15.8+dfsg-3
Severity: normal
Dear Maintainer,
we ran into what appears to be a segmentation fault in Qt.
One of the last places it runs into is QQuickOpenGLShaderEffectCommon which is why I am reporting it towards this package.
I dumped a core file from GDB, which should contain everything needed to debug this further, since debugging symbols for pretty much anything Qt are installed.
You can find it here: https://data.moto9000.moe/qt/1/core.191885.tar.xz (12,3 GiB when uncompressed)
I will just put the backtrace in here:
```
#0 0x0000000000000000 in ()
#1 0x00007f8f43eba269 in QMetaObject::cast(QObject const*) const (this=0x7f8f44143140 <QObject::staticMetaObject>, obj=0x55b8ddf56be0) at kernel/qmetaobject.cpp:389
#2 0x00007f8f43eba2a5 in QMetaObject::cast(QObject*) const (this=<optimized out>, obj=<optimized out>) at kernel/qmetaobject.cpp:378
#3 0x00007f8f42b6422a in qobject_cast<QObject*>(QObject*) (object=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:519
#4 QtPrivate::QVariantValueHelper<QObject*>::object(QVariant const&) (v=[Thread 0x7f8e4a7fc6c0 (LWP 192005) exited]
[Thread 0x7f8d7d9c36c0 (LWP 192105) exited]
[New Thread 0x7f8e86ffd6c0 (LWP 195762)]
[New Thread 0x7f8e87fff6c0 (LWP 195761)]
[New Thread 0x7f8e4a7fc6c0 (LWP 195758)]
[Thread 0x7f8e609e56c0 (LWP 192001) exited]
[New Thread 0x7f8f0d3fc6c0 (LWP 195757)]
[Thread 0x7f8e84ff96c0 (LWP 191983) exited]
[Thread 0x7f8e857fa6c0 (LWP 191982) exited]
[Thread 0x7f8e85ffb6c0 (LWP 191981) exited]
[Thread 0x7f8e867fc6c0 (LWP 191980) exited]
[Thread 0x7f8e86ffd6c0 (LWP 191979) exited]
[Thread 0x7f8e877fe6c0 (LWP 191978) exited]
[Thread 0x7f8e87fff6c0 (LWP 191977) exited]
[Thread 0x7f8ea577f6c0 (LWP 191976) exited]
[Thread 0x7f8ea6a8b6c0 (LWP 191975) exited]
[New Thread 0x7f8e877fe6c0 (LWP 195763)]
[Thread 0x7f8f0d3fc6c0 (LWP 191939) exited]
[Thread 0x7f8d5ebff6c0 (LWP 192247) exited]
QVariant(QQuickItem*, 0x55b8ddf56be0)) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvariant.h:753
#5 QtPrivate::ObjectInvoker<QtPrivate::QVariantValueHelper<QObject*>, QVariant const&, QObject*>::invoke(QVariant const&) (a=QVariant(QQuickItem*, 0x55b8ddf56be0)) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvariant.h:107
#6 qvariant_cast<QObject*>(QVariant const&) (v=[New Thread 0x7f8d5ebff6c0 (LWP 195764)]
QVariant(QQuickItem*, 0x55b8ddf56be0)) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvariant.h:879
#7 QQuickOpenGLShaderEffectCommon::disconnectPropertySignals(QQuickItem*, QQuickOpenGLShaderEffectMaterialKey::ShaderType) (this=this@entry=0x55b8e7f311d8, item=0x55b8e7eb0930, shaderType=shaderType@entry=QQuickOpenGLShaderEffectMaterialKey::FragmentShader) at items/qquickopenglshadereffect.cpp:238
#8 0x00007f8f42b65d7a in QQuickOpenGLShaderEffect::~QQuickOpenGLShaderEffect() (this=0x55b8e7f31170, __in_chrg=<optimized out>) at items/qquickopenglshadereffect.cpp:660
#9 0x00007f8f42b65e29 in QQuickOpenGLShaderEffect::~QQuickOpenGLShaderEffect() (this=0x55b8e7f31170, __in_chrg=<optimized out>) at items/qquickopenglshadereffect.cpp:661
#10 0x00007f8f42b5e563 in QQuickShaderEffect::~QQuickShaderEffect() (this=this@entry=0x55b8e7eb0930, __in_chrg=<optimized out>) at items/qquickshadereffect.cpp:535
#11 0x00007f8f42bd0a35 in QQmlPrivate::QQmlElement<QQuickShaderEffect>::~QQmlElement() (this=0x55b8e7eb0930, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#12 QQmlPrivate::QQmlElement<QQuickShaderEffect>::~QQmlElement() (this=0x55b8e7eb0930, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#13 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e4008a00) at kernel/qobject.cpp:2137
#14 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7fd9e40, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#15 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7fd9e40, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#16 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7fd9e40, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#17 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7fd9e40, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#18 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e7fd9960) at kernel/qobject.cpp:2137
#19 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7f5a030, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#20 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7f5a030, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#21 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7f5a030, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#22 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7f5a030, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#23 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e7f59cc0) at kernel/qobject.cpp:2137
#24 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7f59c00, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#25 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7f59c00, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#26 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7f59c00, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#27 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7f59c00, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#28 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e65e0170) at kernel/qobject.cpp:2137
#29 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e65e00b0, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#30 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e65e00b0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#31 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e65e00b0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#32 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e65e00b0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#33 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e7e63650) at kernel/qobject.cpp:2137
#34 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7e63590, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#35 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7e63590, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#36 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7e63590, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#37 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7e63590, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#38 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e7dc7640) at kernel/qobject.cpp:2137
#39 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e7dc7580, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#40 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e7dc7580, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#41 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7dc7580, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#42 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e7dc7580, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#43 0x00007f8f43edb28e in QObjectPrivate::deleteChildren() (this=this@entry=0x55b8e65b0c20) at kernel/qobject.cpp:2137
#44 0x00007f8f43ee7054 in QObject::~QObject() (this=this@entry=0x55b8e65b0b60, __in_chrg=<optimized out>) at kernel/qobject.cpp:1115
#45 0x00007f8f42a566a2 in QQuickItem::~QQuickItem() (this=this@entry=0x55b8e65b0b60, __in_chrg=<optimized out>) at items/qquickitem.cpp:2388
#46 0x00007f8f42bd03e5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e65b0b60, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#47 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x55b8e65b0b60, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144
#48 0x00007f8f43edd4bf in QObject::event(QEvent*) (this=0x55b8e65b0b60, e=0x55b8e49f8300) at kernel/qobject.cpp:1334
#49 0x00007f8f3f562fae in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55b8c28a1580, receiver=receiver@entry=0x55b8e65b0b60, e=0x55b8e49f8300) at kernel/qapplication.cpp:3640
#50 0x00007f8f3f56a3bd in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7ffd5eca2d80, receiver=receiver@entry=0x55b8e65b0b60, e=e@entry=0x55b8e49f8300) at kernel/qapplication.cpp:3386
#51 0x000055b8c1190609 in Application::notify(QObject*, QEvent*) (this=0x7ffd5eca2d80, object=0x55b8e65b0b60, event=0x55b8e49f8300) at /home/juliangro/git/overte/interface/src/Application.cpp:4223
#52 0x00007f8f43eb16f8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55b8e65b0b60, event=0x55b8e49f8300) at kernel/qcoreapplication.cpp:1064
#53 0x00007f8f43eb18be in QCoreApplication::sendEvent(QObject*, QEvent*) (receiver=<optimized out>, event=<optimized out>) at kernel/qcoreapplication.cpp:1462
#54 0x00007f8f43eb4681 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x55b8c265eb20) at kernel/qcoreapplication.cpp:1821
#55 0x00007f8f43eb4b08 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=<optimized out>, event_type=<optimized out>) at kernel/qcoreapplication.cpp:1680
#56 0x00007f8f43f0a153 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x55b8c2f64780) at kernel/qeventdispatcher_glib.cpp:277
#57 0x00007f8f35d1e7a9 in g_main_dispatch (context=0x55b8c2cb0400) at ../../../glib/gmain.c:3454
#58 g_main_context_dispatch (context=context@entry=0x55b8c2cb0400) at ../../../glib/gmain.c:4172
#59 0x00007f8f35d1ea38 in g_main_context_iterate (context=context@entry=0x55b8c2cb0400, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4248
#60 0x00007f8f35d1eacc in g_main_context_iteration (context=0x55b8c2cb0400, may_block=1) at ../../../glib/gmain.c:4313
#61 0x00007f8f43f09836 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55b8c2fa7f10, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#62 0x00007f8f43eb017b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd5eca2910, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#63 0x00007f8f43eb82d6 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#64 0x00007f8f40d30e8c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1863
#65 0x00007f8f3f562f25 in QApplication::exec() () at kernel/qapplication.cpp:2832
#66 0x000055b8c0fffb27 in main(int, char const**) (argc=<optimized out>, argv=<optimized out>) at /home/juliangro/git/overte/interface/src/main.cpp:648
```
While this doesn't happen every time I can reproduce the issue locally.
-- System Information:
Debian Release: 12.0
APT prefers testing
APT policy: (900, 'testing'), (500, 'testing-security'), (500, 'testing-debug'), (400, 'unstable'), (50, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.1.0-7-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages libqt5quick5 depends on:
ii libc6 2.36-8
ii libqt5core5a [qtbase-abi-5-15-8] 5.15.8+dfsg-3
ii libqt5gui5 5.15.8+dfsg-3
ii libqt5network5 5.15.8+dfsg-3
ii libqt5qml5 [qtdeclarative-abi-5-15-8] 5.15.8+dfsg-3
ii libqt5qmlmodels5 5.15.8+dfsg-3
ii libstdc++6 12.2.0-14
libqt5quick5 recommends no packages.
libqt5quick5 suggests no packages.
-- no debconf information
Lisandro Damian Nicanor Perez Meyer
May 22, 2023, 10:30:04 PM5/22/23
to
tag 1034457 unreproducible moreinfo
thanks
Hi!
On sábado, 15 de abril de 2023 18:51:18 -03 Julian Groß wrote:
> Package: libqt5quick5
> Version: 5.15.8+dfsg-3
> Severity: normal
>
> Dear Maintainer,
>
> we ran into what appears to be a segmentation fault in Qt.
> One of the last places it runs into is QQuickOpenGLShaderEffectCommon which
> is why I am reporting it towards this package.
Well, when you have a crash you are supposed to file a bug against the
application that triggers the segfault. If this is the case, then please close
this bug (or just reply asking us to do it) and then file a new bug to the
application itself, so all the relevant metadata is there.
If the application that triggers the bug is not in Debian then you must add a
complete small example code to trigger the bug.
Thanks, Lisandro.
thanks
Hi!
On sábado, 15 de abril de 2023 18:51:18 -03 Julian Groß wrote:
> Package: libqt5quick5
> Version: 5.15.8+dfsg-3
> Severity: normal
>
> Dear Maintainer,
>
> we ran into what appears to be a segmentation fault in Qt.
> One of the last places it runs into is QQuickOpenGLShaderEffectCommon which
> is why I am reporting it towards this package.
application that triggers the segfault. If this is the case, then please close
this bug (or just reply asking us to do it) and then file a new bug to the
application itself, so all the relevant metadata is there.
If the application that triggers the bug is not in Debian then you must add a
complete small example code to trigger the bug.
Thanks, Lisandro.
Julian
May 23, 2023, 2:51:20 AM5/23/23
to
Hello,
unfortunately I cannot provide such example code. I am neither an expert on C++ nor on QML. This is why I included the core dump. It looked like all the information needed to debug this was shown in KDevelop and exported to the core dump.
What *seems* to cause the issue is when a QML animation is being played and then interrupted. Considering that it takes me up to 20 minutes to reproduce the issue each time, I am not sure how accurate this is though.
Greetings
Julian Groß
23.05.2023 04:21:11 Lisandro Damian Nicanor Perez Meyer <perez...@gmail.com>:
unfortunately I cannot provide such example code. I am neither an expert on C++ nor on QML. This is why I included the core dump. It looked like all the information needed to debug this was shown in KDevelop and exported to the core dump.
What *seems* to cause the issue is when a QML animation is being played and then interrupted. Considering that it takes me up to 20 minutes to reproduce the issue each time, I am not sure how accurate this is though.
Greetings
Julian Groß
23.05.2023 04:21:11 Lisandro Damian Nicanor Perez Meyer <perez...@gmail.com>:
Lisandro Damián Nicanor Pérez Meyer
May 23, 2023, 11:52:14 AM5/23/23
to
El martes, 23 de mayo de 2023 03:41:43 -03 Julian escribió:
> Hello,
>
> unfortunately I cannot provide such example code. I am neither an expert on C++ nor on QML. This is why I included the core dump. It looked like all the information needed to debug this was shown in KDevelop and exported to the core dump.
That's totally fine.
> Hello,
>
> unfortunately I cannot provide such example code. I am neither an expert on C++ nor on QML. This is why I included the core dump. It looked like all the information needed to debug this was shown in KDevelop and exported to the core dump.
> What *seems* to cause the issue is when a QML animation is being played and then interrupted. Considering that it takes me up to 20 minutes to reproduce the issue each time, I am not sure how accurate this is though.
Julian
May 24, 2023, 2:40:05 AM5/24/23
to
https://github.com/overte-org/overte/issues/373
23.05.2023 17:46:47 Lisandro Damián Nicanor Pérez Meyer <perez...@gmail.com>:
23.05.2023 17:46:47 Lisandro Damián Nicanor Pérez Meyer <perez...@gmail.com>:
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