Bug 351042

Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-25-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
Estaba agregando temas al escritorio kde, como iconos y estilos

The crash can be reproduced sometimes.

-- Backtrace:
Application: Preferencias del sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f74a9d2f780 (LWP 3971))]

Thread 4 (Thread 0x7f7499237700 (LWP 3972)):
#0  0x00007f74a64978dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f74a47b1b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f74a47b364f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f749b782099 in QXcbEventReader::run (this=0x1801620) at qxcbconnection.cpp:1105
#4  0x00007f74a6b18b0e in QThreadPrivate::start (arg=0x1801620) at thread/qthread_unix.cpp:337
#5  0x00007f74a36cb6aa in start_thread (arg=0x7f7499237700) at pthread_create.c:333
#6  0x00007f74a64a2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f747ab66700 (LWP 3991)):
#0  0x00007f74a64978dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f74a31acebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f74a31acfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f74a6dafc6c in QEventDispatcherGlib::processEvents (this=0x7f746c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f74a6d543e2 in QEventLoop::exec (this=this@entry=0x7f747ab65e40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f74a6b13b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f74a6b18b0e in QThreadPrivate::start (arg=0x418cb10) at thread/qthread_unix.cpp:337
#7  0x00007f74a36cb6aa in start_thread (arg=0x7f747ab66700) at pthread_create.c:333
#8  0x00007f74a64a2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f748922e700 (LWP 4464)):
#0  0x00007f74a64978dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f74a31acebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f74a31acfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f74a6dafc6c in QEventDispatcherGlib::processEvents (this=0x7f748400e0e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f74a6d543e2 in QEventLoop::exec (this=this@entry=0x7f748922de20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f74a6b13b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f74a5adef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f74a6b18b0e in QThreadPrivate::start (arg=0x426c000) at thread/qthread_unix.cpp:337
#8  0x00007f74a36cb6aa in start_thread (arg=0x7f748922e700) at pthread_create.c:333
#9  0x00007f74a64a2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f74a9d2f780 (LWP 3971)):
[KCrash Handler]
#6  0x00007f74a59fff97 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f74a59aa151 in QV4::ExecutionEngine::~ExecutionEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f74a5ae20d5 in QV8Engine::~QV8Engine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f74a5ae22b9 in QV8Engine::~QV8Engine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f74a5947061 in QJSEngine::~QJSEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f74a5a443c5 in QQmlEngine::~QQmlEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f74a5a44499 in QQmlEngine::~QQmlEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f747f673be2 in cleanup (pointer=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qscopedpointer.h:54
#14 reset (other=0x0, this=0x7f747f9016c8 <Aurorae::Helper::instance()::s_helper+8>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qscopedpointer.h:149
#15 Aurorae::Helper::unref (this=0x7f747f9016c0 <Aurorae::Helper::instance()::s_helper>) at ../../../../clients/aurorae/src/aurorae.cpp:119
#16 0x00007f747f677908 in unref (this=<optimized out>) at ../../../../clients/aurorae/src/aurorae.cpp:273
#17 Aurorae::Decoration::~Decoration (this=0x4f78c30, __in_chrg=<optimized out>) at ../../../../clients/aurorae/src/aurorae.cpp:267
#18 0x00007f747f677929 in Aurorae::Decoration::~Decoration (this=0x4f78c30, __in_chrg=<optimized out>) at ../../../../clients/aurorae/src/aurorae.cpp:280
#19 0x00007f74a6d88778 in QObject::event (this=0x4f78c30, e=<optimized out>) at kernel/qobject.cpp:1236
#20 0x00007f74a7b42b2c in QApplicationPrivate::notify_helper (this=0x17eab10, receiver=0x4f78c30, e=0x45a4fc0) at kernel/qapplication.cpp:3720
#21 0x00007f74a7b48000 in QApplication::notify (this=0x7ffc75943c70, receiver=0x4f78c30, e=0x45a4fc0) at kernel/qapplication.cpp:3503
#22 0x00007f74a6d56c2b in QCoreApplication::notifyInternal (this=0x7ffc75943c70, receiver=0x4f78c30, event=event@entry=0x45a4fc0) at kernel/qcoreapplication.cpp:935
#23 0x00007f74a6d58c9b in sendEvent (event=0x45a4fc0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x17e9d60) at kernel/qcoreapplication.cpp:1552
#25 0x00007f74a5587b6e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f74a55b9463 in QQuickWindow::~QQuickWindow() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#27 0x00007f74a5668a49 in QQuickView::~QQuickView() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#28 0x00007f74a7ba1dd5 in QWindowContainer::~QWindowContainer (this=0x441ec50, __in_chrg=<optimized out>) at kernel/qwindowcontainer.cpp:219
#29 0x00007f74a7ba1df9 in QWindowContainer::~QWindowContainer (this=0x441ec50, __in_chrg=<optimized out>) at kernel/qwindowcontainer.cpp:220
#30 0x00007f74a6d8618c in QObjectPrivate::deleteChildren (this=this@entry=0x3690e10) at kernel/qobject.cpp:1950
#31 0x00007f74a7b8257a in QWidget::~QWidget (this=0x3cffac0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#32 0x00007f74a7b827e9 in QWidget::~QWidget (this=0x3cffac0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1662
#33 0x00007f74a6d8618c in QObjectPrivate::deleteChildren (this=this@entry=0x3e07810) at kernel/qobject.cpp:1950
#34 0x00007f74a7b8257a in QWidget::~QWidget (this=0x3dc00d0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#35 0x00007f748135b4fe in ~ConfigurationForm (this=0x3dc00d0, __in_chrg=<optimized out>) at ../../../kcmkwin/kwindecoration/kcm.h:41
#36 KDecoration2::Configuration::ConfigurationForm::~ConfigurationForm (this=0x3dc00d0, __in_chrg=<optimized out>) at ../../../kcmkwin/kwindecoration/kcm.h:41
#37 0x00007f74a6d8618c in QObjectPrivate::deleteChildren (this=this@entry=0x3e64dc0) at kernel/qobject.cpp:1950
#38 0x00007f74a7b8257a in QWidget::~QWidget (this=0x3d1d4f0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#39 0x00007f74a86261c7 in KCModule::~KCModule (this=0x3d1d4f0, __in_chrg=<optimized out>) at ../../src/kcmodule.cpp:177
#40 0x00007f74813561a1 in ~ConfigurationModule (this=0x3d1d4f0, __in_chrg=<optimized out>) at ../../../kcmkwin/kwindecoration/kcm.h:47
#41 KDecoration2::Configuration::ConfigurationModule::~ConfigurationModule (this=0x3d1d4f0, __in_chrg=<optimized out>) at ../../../kcmkwin/kwindecoration/kcm.h:47
#42 0x00007f74a98a9e34 in KCModuleProxy::deleteClient (this=this@entry=0x2220e30) at ../../src/kcmoduleproxy.cpp:217
#43 0x00007f74a98a9f36 in KCModuleProxy::~KCModuleProxy (this=0x2220e30, __in_chrg=<optimized out>) at ../../src/kcmoduleproxy.cpp:208
#44 0x00007f74a98aa049 in KCModuleProxy::~KCModuleProxy (this=0x2220e30, __in_chrg=<optimized out>) at ../../src/kcmoduleproxy.cpp:212
#45 0x00007f74a6d8618c in QObjectPrivate::deleteChildren (this=this@entry=0x3ea8220) at kernel/qobject.cpp:1950
#46 0x00007f74a7b8257a in QWidget::~QWidget (this=0x36b06b0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#47 0x00007f74a7b827e9 in QWidget::~QWidget (this=0x36b06b0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1662
#48 0x00007f74a6d8618c in QObjectPrivate::deleteChildren (this=this@entry=0x3d14360) at kernel/qobject.cpp:1950
#49 0x00007f74a7b8257a in QWidget::~QWidget (this=0x18cf820, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1642
#50 0x00007f74a7d11059 in QScrollArea::~QScrollArea (this=0x18cf820, __in_chrg=<optimized out>) at widgets/qscrollarea.cpp:168
#51 0x00007f74a816c213 in ~Private (this=0x18c06d0, __in_chrg=<optimized out>) at ../../src/kpagewidgetmodel.cpp:40
#52 KPageWidgetItem::~KPageWidgetItem (this=0x36b7dc0, __in_chrg=<optimized out>) at ../../src/kpagewidgetmodel.cpp:86
#53 0x00007f74a816cbf4 in ~KPageWidgetItem (this=0x36b7dc0, __in_chrg=<optimized out>) at ../../src/kpagewidgetmodel.cpp:87
#54 PageItem::~PageItem (this=0x3d804f0, __in_chrg=<optimized out>) at ../../src/kpagewidgetmodel.cpp:176
#55 0x00007f74a816de08 in KPageWidgetModel::removePage (this=0x1e041e0, item=<optimized out>) at ../../src/kpagewidgetmodel.cpp:537
#56 0x00007f74a816bd67 in KPageWidget::removePage (this=<optimized out>, item=<optimized out>) at ../../src/kpagewidget.cpp:120
#57 0x00007f74a9add875 in ModuleView::closeModules (this=0x1a68d60) at ../../core/ModuleView.cpp:275
#58 0x00007f748a8bd5ce in IconMode::backToOverview (this=0x1a4c5b0) at ../../icons/IconMode.cpp:156
#59 0x00007f74a6d879c9 in QMetaObject::activate (sender=sender@entry=0x2146740, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffc75942ea0) at kernel/qobject.cpp:3716
#60 0x00007f74a6d88057 in QMetaObject::activate (sender=sender@entry=0x2146740, m=m@entry=0x7f74a8059b40 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffc75942ea0) at kernel/qobject.cpp:3582
#61 0x00007f74a7b38722 in QAction::triggered (this=this@entry=0x2146740, _t1=false) at .moc/moc_qaction.cpp:360
#62 0x00007f74a7b3ae28 in QAction::activate (this=0x2146740, event=<optimized out>) at kernel/qaction.cpp:1167
#63 0x00007f74a7c3f23d in QAbstractButtonPrivate::click (this=0x21bfec0) at widgets/qabstractbutton.cpp:516
#64 0x00007f74a7c3f454 in QAbstractButton::mouseReleaseEvent (this=0x21bfba0, e=0x7ffc759433a0) at widgets/qabstractbutton.cpp:1132
#65 0x00007f74a7d0b23a in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:609
#66 0x00007f74a7b861e8 in QWidget::event (this=0x21bfba0, event=0x7ffc759433a0) at kernel/qwidget.cpp:9022
#67 0x00007f74a7c40773 in QAbstractButton::event (this=this@entry=0x21bfba0, e=e@entry=0x7ffc759433a0) at widgets/qabstractbutton.cpp:1089
#68 0x00007f74a7d0b319 in QToolButton::event (this=0x21bfba0, event=0x7ffc759433a0) at widgets/qtoolbutton.cpp:965
#69 0x00007f74a7b42b2c in QApplicationPrivate::notify_helper (this=0x17eab10, receiver=0x21bfba0, e=0x7ffc759433a0) at kernel/qapplication.cpp:3720
#70 0x00007f74a7b488eb in QApplication::notify (this=0x7ffc759430e0, receiver=0x7ffc75943100, e=0x7ffc759433a0) at kernel/qapplication.cpp:3280
#71 0x00007f74a6d56c2b in QCoreApplication::notifyInternal (this=0x7ffc75943c70, receiver=receiver@entry=0x21bfba0, event=event@entry=0x7ffc759433a0) at kernel/qcoreapplication.cpp:935
#72 0x00007f74a7b473da in sendSpontaneousEvent (event=0x7ffc759433a0, receiver=0x21bfba0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#73 QApplicationPrivate::sendMouseEvent (receiver=0x21bfba0, event=0x7ffc759433a0, alienWidget=0x21bfba0, nativeWidget=0x194fe20, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#74 0x00007f74a7b9ecc0 in QWidgetWindow::handleMouseEvent (this=0x3eae570, event=0x7ffc759437b0) at kernel/qwidgetwindow.cpp:543
#75 0x00007f74a7ba0e33 in QWidgetWindow::event (this=0x3eae570, event=0x7ffc759437b0) at kernel/qwidgetwindow.cpp:210
#76 0x00007f74a7b42b2c in QApplicationPrivate::notify_helper (this=0x17eab10, receiver=0x3eae570, e=0x7ffc759437b0) at kernel/qapplication.cpp:3720
#77 0x00007f74a7b48000 in QApplication::notify (this=0x7ffc75943c70, receiver=0x3eae570, e=0x7ffc759437b0) at kernel/qapplication.cpp:3503
#78 0x00007f74a6d56c2b in QCoreApplication::notifyInternal (this=0x7ffc75943c70, receiver=0x3eae570, event=0x7ffc759437b0) at kernel/qcoreapplication.cpp:935
#79 0x00007f74a7585f82 in sendSpontaneousEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#80 QGuiApplicationPrivate::processMouseEvent (e=0x3bb6300) at kernel/qguiapplication.cpp:1774
#81 0x00007f74a7587b45 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x3bb6300) at kernel/qguiapplication.cpp:1576
#82 0x00007f74a756c34f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#83 0x00007f749b7ac590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#84 0x00007f74a31acc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#85 0x00007f74a31acf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#86 0x00007f74a31acfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#87 0x00007f74a6dafc57 in QEventDispatcherGlib::processEvents (this=0x182aed0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#88 0x00007f74a6d543e2 in QEventLoop::exec (this=this@entry=0x7ffc75943b50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#89 0x00007f74a6d5c02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#90 0x00007f74a757d31c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#91 0x00007f74a7b3e7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#92 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi