Bug 349623

Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-21-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:

I set a custom  window decoration downloaded from "Get new decoration" and then I pushed "Defaults" button

- Custom settings of the application:

downloaded extra windows decoration

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f09da185780 (LWP 3894))]

Thread 5 (Thread 0x7f09ca9f0700 (LWP 3895)):
#0  0x00007f09d68ef8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f09d4c09b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f09d4c0b64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f09cd783099 in QXcbEventReader::run (this=0xbe68a0) at qxcbconnection.cpp:1105
#4  0x00007f09d6f70b0e in QThreadPrivate::start (arg=0xbe68a0) at thread/qthread_unix.cpp:337
#5  0x00007f09d3b236aa in start_thread (arg=0x7f09ca9f0700) at pthread_create.c:333
#6  0x00007f09d68faeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f09b3471700 (LWP 3916)):
#0  0x00007f09d68ef8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f09d3604ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f09d3604fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f09d7207c6c in QEventDispatcherGlib::processEvents (this=0x7f09ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f09d71ac3e2 in QEventLoop::exec (this=this@entry=0x7f09b3470e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f09d6f6bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f09d5f36f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f09d6f70b0e in QThreadPrivate::start (arg=0xc13300) at thread/qthread_unix.cpp:337
#8  0x00007f09d3b236aa in start_thread (arg=0x7f09b3471700) at pthread_create.c:333
#9  0x00007f09d68faeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f09abb16700 (LWP 3917)):
#0  0x00007f09d68ef8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f09d3604ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f09d3604fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f09d7207c6c in QEventDispatcherGlib::processEvents (this=0x7f09a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f09d71ac3e2 in QEventLoop::exec (this=this@entry=0x7f09abb15e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f09d6f6bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f09d5f36f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f09d6f70b0e in QThreadPrivate::start (arg=0x1457af0) at thread/qthread_unix.cpp:337
#8  0x00007f09d3b236aa in start_thread (arg=0x7f09abb16700) at pthread_create.c:333
#9  0x00007f09d68faeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f09a97cd700 (LWP 3918)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f09d566ae26 in ManagedTextureNode::~ManagedTextureNode() () from /usr/lib/x86_64-linux-gnu/libKF5QuickAddons.so.5
#8  0x00007f09d59b1c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f09d59b1c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f09d59b1c79 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f09d59b1c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f09d59b1c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f09d59b1df9 in QSGOpacityNode::~QSGOpacityNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f09d59b1c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f09d59b1c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f09d59b1db9 in QSGTransformNode::~QSGTransformNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f09d5a0f3c4 in QQuickWindowPrivate::cleanupNodes() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f09d5a0f45e in QQuickWindowPrivate::updateDirtyNodes() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f09d5a0fd80 in QQuickWindowPrivate::syncSceneGraph() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f09d59e11dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f09d59e20a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f09d59e3360 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f09d6f70b0e in QThreadPrivate::start (arg=0x1959d30) at thread/qthread_unix.cpp:337
#24 0x00007f09d3b236aa in start_thread (arg=0x7f09a97cd700) at pthread_create.c:333
#25 0x00007f09d68faeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f09da185780 (LWP 3894)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f09d6f71c6b in wait (time=18446744073709551615, this=0x17edd10) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1959d70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f09d59e4c48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f09d59e5cad in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f09d7f9ab2c in QApplicationPrivate::notify_helper (this=0xbcce70, receiver=0x105e7d0, e=0x7fff7a85d9c0) at kernel/qapplication.cpp:3720
#6  0x00007f09d7fa0000 in QApplication::notify (this=0x7fff7a85dd30, receiver=0x105e7d0, e=0x7fff7a85d9c0) at kernel/qapplication.cpp:3503
#7  0x00007f09d71aec2b in QCoreApplication::notifyInternal (this=0x7fff7a85dd30, receiver=0x105e7d0, event=event@entry=0x7fff7a85d9c0) at kernel/qcoreapplication.cpp:935
#8  0x00007f09d7206ae5 in sendEvent (event=0x7fff7a85d9c0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#9  QTimerInfoList::activateTimers (this=0xc0cfe0) at kernel/qtimerinfo_unix.cpp:635
#10 0x00007f09d7206f61 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#11 0x00007f09d3604c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f09d3604f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f09d3604fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f09d7207c57 in QEventDispatcherGlib::processEvents (this=0xc1b380, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#15 0x00007f09d71ac3e2 in QEventLoop::exec (this=this@entry=0x7fff7a85dc10, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#16 0x00007f09d71b402c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#17 0x00007f09d79d531c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#18 0x00007f09d7f967a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#19 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi