Bug 421572

Application: plasmashell (5.18.5)

Qt Version: 5.14.1
Frameworks Version: 5.70.0
Operating System: Linux 5.6.11-1-default x86_64
Windowing system: X11
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
- What I was doing when the application crashed: booting the system, blackscreeb and segfault.

from syslog:
kernel: traps: plasmashell[1993] general protection fault ip:7f35a516f1d3 sp:7ffcc49434f8 error:0 in libQt5Quick.so.5.14.1[7f35a>

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd494eeb800 (LWP 1413))]

Thread 10 (Thread 0x7fd47370e700 (LWP 1606)):
#0  0x00007fd495a19cf4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fd4959cd441 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd4959cd982 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd4959cdaff in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fd497479beb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd458000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd497421b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd47370dd60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#6  0x00007fd49724c5ce in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#7  0x00007fd473c53e68 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#8  0x00007fd49724d698 in QThreadPrivate::start(void*) (arg=0x563008d6d310) at thread/qthread_unix.cpp:342
#9  0x00007fd4966c9efa in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd496edb3bf in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7fd47a92a700 (LWP 1595)):
#0  0x00007fd496ecc4fc in read () at /lib64/libc.so.6
#1  0x00007fd495a1537f in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd4959cd537 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd4959cd982 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fd4959cdaff in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fd497479beb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd468000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fd497421b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd47a929d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#7  0x00007fd49724c5ce in QThread::exec() (this=this@entry=0x563006f95000) at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#8  0x00007fd498e9f0e6 in QQuickPixmapReader::run() (this=0x563006f95000) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/util/qquickpixmapcache.cpp:987
#9  0x00007fd49724d698 in QThreadPrivate::start(void*) (arg=0x563006f95000) at thread/qthread_unix.cpp:342
#10 0x00007fd4966c9efa in start_thread () at /lib64/libpthread.so.0
#11 0x00007fd496edb3bf in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7fd4812be700 (LWP 1552)):
#0  0x00007fd4966d0795 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fd4831c281b in  () at /usr/lib64/dri/i965_dri.so
#2  0x00007fd4831c2697 in  () at /usr/lib64/dri/i965_dri.so
#3  0x00007fd4966c9efa in start_thread () at /lib64/libpthread.so.0
#4  0x00007fd496edb3bf in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fd481abf700 (LWP 1551)):
#0  0x00007fd4966d0795 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fd4831c281b in  () at /usr/lib64/dri/i965_dri.so
#2  0x00007fd4831c2697 in  () at /usr/lib64/dri/i965_dri.so
#3  0x00007fd4966c9efa in start_thread () at /lib64/libpthread.so.0
#4  0x00007fd496edb3bf in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fd4822c0700 (LWP 1550)):
#0  0x00007fd4966d0795 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fd4831c281b in  () at /usr/lib64/dri/i965_dri.so
#2  0x00007fd4831c2697 in  () at /usr/lib64/dri/i965_dri.so
#3  0x00007fd4966c9efa in start_thread () at /lib64/libpthread.so.0
#4  0x00007fd496edb3bf in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fd482ac1700 (LWP 1549)):
#0  0x00007fd4966d0795 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fd4831c281b in  () at /usr/lib64/dri/i965_dri.so
#2  0x00007fd4831c2697 in  () at /usr/lib64/dri/i965_dri.so
#3  0x00007fd4966c9efa in start_thread () at /lib64/libpthread.so.0
#4  0x00007fd496edb3bf in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fd490ef6700 (LWP 1510)):
#0  0x00007fd496ed0acf in poll () at /lib64/libc.so.6
#1  0x00007fd4959cd9de in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd4959cdaff in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd497479beb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd488000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fd497421b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd490ef5d80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#5  0x00007fd49724c5ce in QThread::exec() (this=this@entry=0x56300687e8e0) at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#6  0x00007fd498be76e5 in QQmlThreadPrivate::run() (this=0x56300687e8e0) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/qml/qml/ftw/qqmlthread.cpp:155
#7  0x00007fd49724d698 in QThreadPrivate::start(void*) (arg=0x56300687e8e0) at thread/qthread_unix.cpp:342
#8  0x00007fd4966c9efa in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd496edb3bf in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fd49218d700 (LWP 1442)):
#0  0x00007fd495a19cf4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fd4959ccf5d in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd4959cd90b in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd4959cdaff in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fd497479beb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fd484000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd497421b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fd49218cd70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#6  0x00007fd49724c5ce in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#7  0x00007fd498560507 in  () at /usr/lib64/libQt5DBus.so.5
#8  0x00007fd49724d698 in QThreadPrivate::start(void*) (arg=0x7fd4985e2da0) at thread/qthread_unix.cpp:342
#9  0x00007fd4966c9efa in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd496edb3bf in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fd492dfc700 (LWP 1425)):
#0  0x00007fd496ed0acf in poll () at /lib64/libc.so.6
#1  0x00007fd499386772 in  () at /usr/lib64/libxcb.so.1
#2  0x00007fd49938743a in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007fd492fe5ab0 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007fd49724d698 in QThreadPrivate::start(void*) (arg=0x5630066966c0) at thread/qthread_unix.cpp:342
#5  0x00007fd4966c9efa in start_thread () at /lib64/libpthread.so.0
#6  0x00007fd496edb3bf in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fd494eeb800 (LWP 1413)):
[KCrash Handler]
#4  0x00007fd498fad1d3 in QVector<QQuickItemPrivate::ChangeListener>::indexOf(QQuickItemPrivate::ChangeListener const&, int) const (this=this@entry=0x563006631088, t=..., from=from@entry=0) at /usr/include/qt5/QtCore/qvector.h:1008
#5  0x00007fd498fa527e in QVector<QQuickItemPrivate::ChangeListener>::removeOne(QQuickItemPrivate::ChangeListener const&) (t=..., this=<optimized out>) at /usr/include/qt5/QtCore/qvector.h:180
#6  0x00007fd498fa527e in QQuickItemPrivate::removeItemChangeListener(QQuickItemChangeListener*, QFlags<QQuickItemPrivate::ChangeType>) (this=this@entry=0x563006631010, listener=listener@entry=0x5630099457e0, types=..., types@entry=...) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickitem.cpp:3949
#7  0x00007fd4990e4e4b in QQuickShaderEffectSource::~QQuickShaderEffectSource() (this=0x5630099457c0, __in_chrg=<optimized out>) at /usr/include/qt5/QtCore/qflags.h:118
#8  0x00007fd4990e4eb9 in QQuickShaderEffectSource::~QQuickShaderEffectSource() (this=0x5630099457c0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickshadereffectsource.cpp:203
#9  0x00007fd4800151c7 in QGfxSourceProxy::~QGfxSourceProxy() (this=0x563006ea9d20, this=<optimized out>) at qgfxsourceproxy.cpp:59
#10 0x00007fd48001b745 in QQmlPrivate::QQmlElement<QGfxSourceProxy>::~QQmlElement() (this=0x563006ea9d20, this=<optimized out>) at /usr/include/qt5/QtQml/qqmlprivate.h:109
#11 0x00007fd48001b745 in QQmlPrivate::QQmlElement<QGfxSourceProxy>::~QQmlElement() (this=0x563006ea9d20, this=<optimized out>) at /usr/include/qt5/QtQml/qqmlprivate.h:111
#12 0x00007fd49744c57e in QObjectPrivate::deleteChildren() (this=0x563006ea9be0) at kernel/qobject.cpp:2123
#13 0x00007fd497455bf6 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#14 0x00007fd498fa9eaa in QQuickItem::~QQuickItem() (this=0x563006ea9b20, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickitem.cpp:2443
#15 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006ea9b20, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:109
#16 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006ea9b20, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#17 0x00007fd49744c57e in QObjectPrivate::deleteChildren() (this=0x563006ea9820) at kernel/qobject.cpp:2123
#18 0x00007fd497455bf6 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#19 0x00007fd498fa9eaa in QQuickItem::~QQuickItem() (this=0x563006ea9760, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickitem.cpp:2443
#20 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006ea9760, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:109
#21 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006ea9760, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#22 0x00007fd49744c57e in QObjectPrivate::deleteChildren() (this=0x563006ea7820) at kernel/qobject.cpp:2123
#23 0x00007fd497455bf6 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#24 0x00007fd498fa9eaa in QQuickItem::~QQuickItem() (this=0x563006f1bb30, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickitem.cpp:2443
#25 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006f1bb30, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:109
#26 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006f1bb30, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#27 0x00007fd49744c57e in QObjectPrivate::deleteChildren() (this=0x56300860d070) at kernel/qobject.cpp:2123
#28 0x00007fd497455bf6 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#29 0x00007fd498fa9eaa in QQuickItem::~QQuickItem() (this=0x563006d51700, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickitem.cpp:2443
#30 0x00007fd498fcc9f5 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() (this=0x563006d51700, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:109
#31 0x00007fd498fcc9f5 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() (this=0x563006d51700, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#32 0x00007fd49744c57e in QObjectPrivate::deleteChildren() (this=0x563008642880) at kernel/qobject.cpp:2123
#33 0x00007fd497455bf6 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#34 0x00007fd498fa9eaa in QQuickItem::~QQuickItem() (this=0x563006f709f0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickitem.cpp:2443
#35 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006f709f0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:109
#36 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006f709f0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#37 0x00007fd49744c57e in QObjectPrivate::deleteChildren() (this=0x563006da9c20) at kernel/qobject.cpp:2123
#38 0x00007fd497455bf6 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#39 0x00007fd498fa9eaa in QQuickItem::~QQuickItem() (this=0x56300863bb70, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickitem.cpp:2443
#40 0x00007fd498fcc9f5 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() (this=0x56300863bb70, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:109
#41 0x00007fd498fcc9f5 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() (this=0x56300863bb70, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#42 0x00007fd49744c57e in QObjectPrivate::deleteChildren() (this=0x563006fbd2a0) at kernel/qobject.cpp:2123
#43 0x00007fd497455bf6 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1107
#44 0x00007fd498fa9eaa in QQuickItem::~QQuickItem() (this=0x563006bef1e0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickitem.cpp:2443
#45 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006bef1e0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:109
#46 0x00007fd498fcc7d5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() (this=0x563006bef1e0, __in_chrg=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/include/QtQml/../../src/qml/qml/qqmlprivate.h:111
#47 0x00007fd49744f78f in QObject::event(QEvent*) (this=this@entry=0x563006bef1e0, e=e@entry=0x56300993f6d0) at kernel/qobject.cpp:1326
#48 0x00007fd498fa73d3 in QQuickItem::event(QEvent*) (this=0x563006bef1e0, ev=0x56300993f6d0) at /usr/src/debug/libqt5-qtdeclarative-5.14.1-1.3.x86_64/src/quick/items/qquickitem.cpp:8156
#49 0x00007fd497f87caf in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x5630066706e0, receiver=receiver@entry=0x563006bef1e0, e=e@entry=0x56300993f6d0) at kernel/qapplication.cpp:3684
#50 0x00007fd497f90df0 in QApplication::notify(QObject*, QEvent*) (this=0x7ffff385c070, receiver=0x563006bef1e0, e=0x56300993f6d0) at kernel/qapplication.cpp:3430
#51 0x00007fd497422fe2 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x563006bef1e0, event=0x56300993f6d0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153
#52 0x00007fd497425774 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x5630066665a0) at kernel/qcoreapplication.cpp:1832
#53 0x00007fd49747a553 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x563006739b50) at kernel/qeventdispatcher_glib.cpp:277
#54 0x00007fd4959cd6e8 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#55 0x00007fd4959cda70 in  () at /usr/lib64/libglib-2.0.so.0
#56 0x00007fd4959cdaff in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#57 0x00007fd497479bce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x5630067353d0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#58 0x00007fd497421b7b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffff385bea0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#59 0x00007fd497429952 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#60 0x0000563005fc5e3c in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma5-workspace-5.18.5-2.1.x86_64/shell/main.cpp:228
[Inferior 1 (process 1413) detached]

The reporter indicates this bug may be a duplicate of or related to bug 421523.

Possible duplicates by query: bug 421539, bug 421528, bug 421523, bug 421503, bug 421488.

Reported using DrKonqi