Application: kinfocenter (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-21-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Clicked PCI tab (Information about devices), Information about Power Management, and then closed the application.

- Custom settings of the application:
To get better stacktraces (JavaScript JIT compiler appears to have hurt them), I used QV4_FORCE_INTERPRETER=1 option. However, it crashes even without that option.

The crash can be reproduced every time.

-- Backtrace:
Application: Centrum informacji KDE (kinfocenter), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2fe33158c0 (LWP 22774))]

Thread 4 (Thread 0x7f2fd1c5f700 (LWP 22775)):
#0  0x00007f2fe053fe8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2fda7ffc62 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7f2fd1c5ec00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  0x00007f2fda7ffc62 in _xcb_conn_wait (c=c@entry=0x1f96e20, cond=cond@entry=0x1f96e60, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:459
#3  0x00007f2fda8018d7 in xcb_wait_for_event (c=0x1f96e20) at ../../src/xcb_in.c:693
#4  0x00007f2fd3fb1629 in QXcbEventReader::run() (this=0x1fa1230) at qxcbconnection.cpp:1253
#5  0x00007f2fe0c3584e in QThreadPrivate::start(void*) (arg=0x1fa1230) at thread/qthread_unix.cpp:331
#6  0x00007f2fddc2b6fa in start_thread (arg=0x7f2fd1c5f700) at pthread_create.c:333
#7  0x00007f2fe054bb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f2fc3452700 (LWP 22777)):
#0  0x00007f2fdd22fa64 in g_mutex_unlock (mutex=0x7f2fbc000990) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gthread-posix.c:1350
#1  0x00007f2fdd1eb1cd in g_main_context_iterate (context=context@entry=0x7f2fbc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3788
#2  0x00007f2fdd1eb42c in g_main_context_iteration (context=0x7f2fbc000990, may_block=may_block@entry=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#3  0x00007f2fe0e6ca9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2fbc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f2fe0e13dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f2fc3451ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2fe0c308a4 in QThread::exec() (this=this@entry=0x233a9d0) at thread/qthread.cpp:503
#6  0x00007f2fdfd133c5 in QQmlThreadPrivate::run() (this=0x233a9d0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f2fe0c3584e in QThreadPrivate::start(void*) (arg=0x233a9d0) at thread/qthread_unix.cpp:331
#8  0x00007f2fddc2b6fa in start_thread (arg=0x7f2fc3452700) at pthread_create.c:333
#9  0x00007f2fe054bb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f2fbad3e700 (LWP 22779)):
#0  0x00007f2fdd1eadc3 in g_main_context_check (context=context@entry=0x7f2fb4000990, max_priority=2147483647, fds=fds@entry=0x7f2fb4002e70, n_fds=n_fds@entry=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3709
#1  0x00007f2fdd1eb2c0 in g_main_context_iterate (context=context@entry=0x7f2fb4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3837
#2  0x00007f2fdd1eb42c in g_main_context_iteration (context=0x7f2fb4000990, may_block=may_block@entry=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#3  0x00007f2fe0e6ca9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2fb40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f2fe0e13dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f2fbad3dce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2fe0c308a4 in QThread::exec() (this=this@entry=0x27329c0) at thread/qthread.cpp:503
#6  0x00007f2fdfd133c5 in QQmlThreadPrivate::run() (this=0x27329c0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f2fe0c3584e in QThreadPrivate::start(void*) (arg=0x27329c0) at thread/qthread_unix.cpp:331
#8  0x00007f2fddc2b6fa in start_thread (arg=0x7f2fbad3e700) at pthread_create.c:333
#9  0x00007f2fe054bb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f2fe33158c0 (LWP 22774)):
[KCrash Handler]
#6  0x00007f2fc22d5690 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#7  0x00007f2fc22d17bd in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#8  0x00007f2fc22e44dd in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#9  0x00007f2fe0e44fca in QMetaObject::activate(QObject*, int, int, void**) (sender=0x2553cc0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3713
#10 0x00007f2fdffe7db6 in QQuickItem::setHeight(double) (this=0x2553cc0, h=<optimized out>) at items/qquickitem.cpp:6318
#11 0x00007f2fe00a1598 in QQuickLoaderPrivate::_q_updateSize(bool) (this=0x24efc30, loaderGeometryChanged=loaderGeometryChanged@entry=true) at items/qquickloader.cpp:894
#12 0x00007f2fe00a173a in QQuickLoader::geometryChanged(QRectF const&, QRectF const&) (this=this@entry=0x24ec000, newGeometry=..., oldGeometry=...) at items/qquickloader.cpp:922
#13 0x00007f2fdffe8544 in QQuickItem::setSize(QSizeF const&) (this=0x24ec000, size=...) at items/qquickitem.cpp:6452
#14 0x00007f2fdffde3f6 in QQuickAnchorsPrivate::fillChanged() (v=..., this=0x24f03b0) at items/qquickanchors.cpp:400
#15 0x00007f2fdffde3f6 in QQuickAnchorsPrivate::fillChanged() (this=this@entry=0x24f03b0) at items/qquickanchors.cpp:177
#16 0x00007f2fdffe0212 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) (this=0x24f03b0, newG=..., oldG=...) at items/qquickanchors.cpp:441
#17 0x00007f2fdffe37ba in QQuickItem::geometryChanged(QRectF const&, QRectF const&) (this=this@entry=0x24eea40, newGeometry=..., oldGeometry=...) at items/qquickitem.cpp:3586
#18 0x00007f2fdffe7db6 in QQuickItem::setHeight(double) (this=0x24eea40, h=<optimized out>) at items/qquickitem.cpp:6318
#19 0x00007f2fdffdf7ba in QQuickAnchorsPrivate::updateVerticalAnchors() (v=<optimized out>, this=0x25f4ed0) at items/qquickanchors.cpp:365
#20 0x00007f2fdffdf7ba in QQuickAnchorsPrivate::updateVerticalAnchors() (this=0x25f4ed0) at items/qquickanchors.cpp:568
#21 0x00007f2fdffe37ba in QQuickItem::geometryChanged(QRectF const&, QRectF const&) (this=0x24e4c70, newGeometry=..., oldGeometry=...) at items/qquickitem.cpp:3586
#22 0x00007f2fdffe773b in QQuickItem::setY(double) (this=0x24e4c70, v=<optimized out>) at items/qquickitem.cpp:6103
#23 0x00007f2fdffdf6bc in QQuickAnchorsPrivate::updateVerticalAnchors() (v=<optimized out>, this=0x24e6600) at items/qquickanchors.cpp:386
#24 0x00007f2fdffdf6bc in QQuickAnchorsPrivate::updateVerticalAnchors() (this=0x24e6600) at items/qquickanchors.cpp:607
#25 0x00007f2fdffe37ba in QQuickItem::geometryChanged(QRectF const&, QRectF const&) (this=this@entry=0x24e2130, newGeometry=..., oldGeometry=...) at items/qquickitem.cpp:3586
#26 0x00007f2fdffe8544 in QQuickItem::setSize(QSizeF const&) (this=0x24e2130, size=...) at items/qquickitem.cpp:6452
#27 0x00007f2fdffde3f6 in QQuickAnchorsPrivate::fillChanged() (v=..., this=0x25f55d0) at items/qquickanchors.cpp:400
#28 0x00007f2fdffde3f6 in QQuickAnchorsPrivate::fillChanged() (this=this@entry=0x25f55d0) at items/qquickanchors.cpp:177
#29 0x00007f2fdffe0212 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) (this=0x25f55d0, newG=..., oldG=...) at items/qquickanchors.cpp:441
#30 0x00007f2fdffe37ba in QQuickItem::geometryChanged(QRectF const&, QRectF const&) (this=this@entry=0x2464eb0, newGeometry=..., oldGeometry=...) at items/qquickitem.cpp:3586
#31 0x00007f2fdffe8544 in QQuickItem::setSize(QSizeF const&) (this=0x2464eb0, size=...) at items/qquickitem.cpp:6452
#32 0x00007f2fdffde3f6 in QQuickAnchorsPrivate::fillChanged() (v=..., this=0x25f8f50) at items/qquickanchors.cpp:400
#33 0x00007f2fdffde3f6 in QQuickAnchorsPrivate::fillChanged() (this=this@entry=0x25f8f50) at items/qquickanchors.cpp:177
#34 0x00007f2fdffe0212 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) (this=0x25f8f50, newG=..., oldG=...) at items/qquickanchors.cpp:441
#35 0x00007f2fdffe37ba in QQuickItem::geometryChanged(QRectF const&, QRectF const&) (this=this@entry=0x2463b70, newGeometry=..., oldGeometry=...) at items/qquickitem.cpp:3586
#36 0x00007f2fdffe8544 in QQuickItem::setSize(QSizeF const&) (this=0x2463b70, size=...) at items/qquickitem.cpp:6452
#37 0x00007f2fdffde3f6 in QQuickAnchorsPrivate::fillChanged() (v=..., this=0x264ac00) at items/qquickanchors.cpp:400
#38 0x00007f2fdffde3f6 in QQuickAnchorsPrivate::fillChanged() (this=this@entry=0x264ac00) at items/qquickanchors.cpp:177
#39 0x00007f2fdffe0212 in QQuickAnchorsPrivate::itemGeometryChanged(QQuickItem*, QRectF const&, QRectF const&) (this=0x264ac00, newG=..., oldG=...) at items/qquickanchors.cpp:441
#40 0x00007f2fdffe37ba in QQuickItem::geometryChanged(QRectF const&, QRectF const&) (this=this@entry=0x23b2c20, newGeometry=..., oldGeometry=...) at items/qquickitem.cpp:3586
#41 0x00007f2fdffe7db6 in QQuickItem::setHeight(double) (this=0x23b2c20, h=<optimized out>) at items/qquickitem.cpp:6318
#42 0x00007f2fdfff4a1c in QQuickItem::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=_o@entry=0x23b2c20, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=8, _a=_a@entry=0x7ffec56c98c0) at .moc/moc_qquickitem.cpp:875
#43 0x00007f2fdfff51bb in QQuickItem::qt_metacall(QMetaObject::Call, int, void**) (this=this@entry=0x23b2c20, _c=_c@entry=QMetaObject::WriteProperty, _id=8, _a=_a@entry=0x7ffec56c98c0) at .moc/moc_qquickitem.cpp:946
#44 0x00007f2fe012a555 in QQuickRectangle::qt_metacall(QMetaObject::Call, int, void**) (this=0x23b2c20, _c=QMetaObject::WriteProperty, _id=<optimized out>, _a=0x7ffec56c98c0) at .moc/moc_qquickrectangle_p.cpp:610
#45 0x00007f2fdfc773a4 in QQmlVMEMetaObject::metaCall(QMetaObject::Call, int, void**) (this=0x23b3370, c=QMetaObject::WriteProperty, _id=9, a=0x7ffec56c98c0) at qml/qqmlvmemetaobject.cpp:971
#46 0x00007f2fdfc9163d in QQmlPropertyPrivate::writeBinding(QObject*, QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) (object=0x23b2c20, core=..., context=0x23b2e30, expression=expression@entry=0x245ca00, result=..., isUndefined=isUndefined@entry=false, flags=...) at qml/qqmlproperty.cpp:1508
#47 0x00007f2fdfcff8cf in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) (this=0x245c9e0, flags=...) at qml/qqmlbinding.cpp:198
#48 0x00007f2fdfcffcfe in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) (this=<optimized out>) at qml/qqmlbinding_p.h:97
#49 0x00007f2fdfcffcfe in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) (e=<optimized out>) at qml/qqmlbinding.cpp:260
#50 0x00007f2fdfcdbbae in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:94
#51 0x00007f2fdfc7e86c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) (object=0x23b2c20, index=31, a=0x0) at qml/qqmlengine.cpp:768
#52 0x00007f2fe0e448a0 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x23b2c20, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3599
#53 0x00007f2fdfc7d978 in QQmlData::destroyed(QObject*) (this=0x2510ef0, object=0x260bbe0) at qml/qqmlengine.cpp:1754
#54 0x00007f2fe0e4cba4 in QObject::~QObject() (this=0x260bbe0, __in_chrg=<optimized out>) at kernel/qobject.cpp:912
#55 0x00007f2fd0431579 in Solid::Battery::~Battery() () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#56 0x00007f2fd042a04f in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#57 0x00007f2fd042a2d9 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#58 0x00007f2fd042a469 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#59 0x00007f2fd042ba3b in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#60 0x00007f2fd042bb89 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#61 0x00007f2fe0c33ab5 in QThreadStorageData::finish(void**) (p=0x1f888d8) at thread/qthreadstorage.cpp:195
#62 0x00007f2fe0e15942 in QCoreApplicationPrivate::cleanupThreadData() (this=this@entry=0x1f89620) at kernel/qcoreapplication.cpp:487
#63 0x00007f2fe114ec72 in QGuiApplicationPrivate::~QGuiApplicationPrivate() (this=0x1f89620, __in_chrg=<optimized out>) at kernel/qguiapplication.cpp:1384
#64 0x00007f2fe1704089 in QApplicationPrivate::~QApplicationPrivate() (this=0x1f89620, __in_chrg=<optimized out>) at kernel/qapplication.cpp:192
#65 0x00007f2fe0e4cde8 in QObject::~QObject() (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:54
#66 0x00007f2fe0e4cde8 in QObject::~QObject() (this=0x7ffec56cb928, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:101
#67 0x00007f2fe0e4cde8 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:883
#68 0x00007f2fe1705e79 in QApplication::~QApplication() (this=0x7ffec56cb920, __in_chrg=<optimized out>) at kernel/qapplication.cpp:816
#69 0x0000000000412afe in main(int, char**) (this=0x7ffec56cb920, __in_chrg=<optimized out>) at /build/kinfocenter-rFzC_E/kinfocenter-5.5.5/main.h:34
#70 0x0000000000412afe in main(int, char**) (argc=1, argv=<optimized out>) at /build/kinfocenter-rFzC_E/kinfocenter-5.5.5/main.cpp:72

Reported using DrKonqi