[kde] [Bug 353416] New: System Settings app crashes on Window Decorations

burritosaur at gmail.com burritosaur at gmail.com
Thu Oct 1 18:14:50 BST 2015 

https://bugs.kde.org/show_bug.cgi?id=353416

            Bug ID: 353416
           Summary: System Settings app crashes on Window Decorations
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: burritosaur at gmail.com

Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-30-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
Navigating to System Settings>Application Style>Window Decorations. Currently I
have the simplicity theme selected but when I went back to try to pick
something else, it crashed. It crashes every time I return to the Window
Decorations tab of Application Style and I can't uninstall or change any themes
through the GUI to see if one of them is the cause.

- Custom settings of the application:
All I've done with this part of KDE since installing it yesterday is installing
some new themes from the Get New Themes button and trying them out. I tried to
find the path where themes were stored but couldn't. I'm using KDE as a part of
Kubuntu and I'm running Ubuntu version 15.04.

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".
[Current thread is 1 (Thread 0x7f2dfbec8780 (LWP 7485))]

Thread 5 (Thread 0x7f2dea831700 (LWP 7486)):
#0  0x00007f2df862c8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2df6946b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f2df694864f in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f2ded5c4099 in QXcbEventReader::run (this=0x22c7140) at
qxcbconnection.cpp:1105
#4  0x00007f2df8cadb0e in QThreadPrivate::start (arg=0x22c7140) at
thread/qthread_unix.cpp:337
#5  0x00007f2df58606aa in start_thread (arg=0x7f2dea831700) at
pthread_create.c:333
#6  0x00007f2df8637eed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f2ddb308700 (LWP 7487)):
#0  0x00007f2df862c8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2df5341ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2df5341fcc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2df8f44c6c in QEventDispatcherGlib::processEvents
(this=0x7f2dd40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2df8ee93e2 in QEventLoop::exec (this=this at entry=0x7f2ddb307e20,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2df8ca8b44 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:503
#6  0x00007f2df7c73f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2df8cadb0e in QThreadPrivate::start (arg=0x26db050) at
thread/qthread_unix.cpp:337
#8  0x00007f2df58606aa in start_thread (arg=0x7f2ddb308700) at
pthread_create.c:333
#9  0x00007f2df8637eed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f2dd3909700 (LWP 7488)):
#0  0x00007f2df862c8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2df5341ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2df5341fcc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2df8f44c6c in QEventDispatcherGlib::processEvents
(this=0x7f2dcc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f2df8ee93e2 in QEventLoop::exec (this=this at entry=0x7f2dd3908e20,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f2df8ca8b44 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:503
#6  0x00007f2df7c73f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f2df8cadb0e in QThreadPrivate::start (arg=0x2c0c5a0) at
thread/qthread_unix.cpp:337
#8  0x00007f2df58606aa in start_thread (arg=0x7f2dd3909700) at
pthread_create.c:333
#9  0x00007f2df8637eed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f2dd12c6700 (LWP 7489)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2df8caec6b in wait (time=18446744073709551615, this=0x2e83da0) at
thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x30fe5a0,
time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f2df771ffab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f2df77203a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f2df8cadb0e in QThreadPrivate::start (arg=0x30fe520) at
thread/qthread_unix.cpp:337
#6  0x00007f2df58606aa in start_thread (arg=0x7f2dd12c6700) at
pthread_create.c:333
#7  0x00007f2df8637eed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f2dfbec8780 (LWP 7485)):
[KCrash Handler]
#6  0x00007f2ddbc596b7 in KDecoration2::Decoration::update(QRect const&) ()
from /usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#7  0x00007f2ddbc5975b in KDecoration2::Decoration::update() () from
/usr/lib/x86_64-linux-gnu/libkdecorations2.so.5
#8  0x00007f2dd3bc6370 in Breeze::Decoration::setOpacity
(this=this at entry=0x2b9c660, value=<optimized out>) at
../../kdecoration/breezedecoration.cpp:92
#9  0x00007f2dd3be67a8 in Breeze::Decoration::qt_metacall (this=0x2b9c660,
_c=QMetaObject::WriteProperty, _id=0, _a=0x7fff5b9ae500) at
moc_breezedecoration.cpp:146
#10 0x00007f2df8c8e5ca in updateProperty (newValue=..., this=0x2bbde50) at
animation/qpropertyanimation.cpp:135
#11 QPropertyAnimation::updateCurrentValue (this=<optimized out>, value=...) at
animation/qpropertyanimation.cpp:242
#12 0x00007f2df8c89f48 in QVariantAnimationPrivate::setCurrentValueForProgress
(this=this at entry=0x2bbde50, progress=progress at entry=0.96444444444444444) at
animation/qvariantanimation.cpp:290
#13 0x00007f2df8c8ad1b in recalculateCurrentInterval (force=false,
this=0x2bbde50) at animation/qvariantanimation.cpp:275
#14 QVariantAnimation::updateCurrentTime (this=<optimized out>) at
animation/qvariantanimation.cpp:693
#15 0x00007f2df8c86baf in QAbstractAnimation::setCurrentTime (this=0x2bbec90,
msecs=130) at animation/qabstractanimation.cpp:1321
#16 0x00007f2df8c86e96 in updateAnimationsTime (delta=20, this=0x2497490) at
animation/qabstractanimation.cpp:606
#17 QUnifiedTimer::updateAnimationTimers (this=0x2547960) at
animation/qabstractanimation.cpp:323
#18 0x00007f2df8c877dc in QAnimationDriver::advanceAnimation (this=<optimized
out>, timeStep=-1) at animation/qabstractanimation.cpp:820
#19 0x00007f2df77041ee in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f2df772268a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f2df7724a8b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f2df772530a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f2df97237b5 in QWindow::event (this=0x275dc40, ev=<optimized out>)
at kernel/qwindow.cpp:2051
#24 0x00007f2df7756dd3 in QQuickWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#25 0x00007f2df9cd7b2c in QApplicationPrivate::notify_helper (this=0x229ba30,
receiver=0x275dc40, e=0x7fff5b9aec60) at kernel/qapplication.cpp:3720
#26 0x00007f2df9cdd000 in QApplication::notify (this=0x7fff5b9af060,
receiver=0x275dc40, e=0x7fff5b9aec60) at kernel/qapplication.cpp:3503
#27 0x00007f2df8eebc2b in QCoreApplication::notifyInternal
(this=0x7fff5b9af060, receiver=receiver at entry=0x275dc40,
event=event at entry=0x7fff5b9aec60) at kernel/qcoreapplication.cpp:935
#28 0x00007f2df971be86 in sendSpontaneousEvent (event=0x7fff5b9aec60,
receiver=0x275dc40) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#29 QGuiApplicationPrivate::processExposeEvent (e=0x2be7240) at
kernel/qguiapplication.cpp:2613
#30 0x00007f2df971cbbd in QGuiApplicationPrivate::processWindowSystemEvent
(e=e at entry=0x2be7240) at kernel/qguiapplication.cpp:1638
#31 0x00007f2df970134f in QWindowSystemInterface::sendWindowSystemEvents
(flags=...) at kernel/qwindowsysteminterface.cpp:572
#32 0x00007f2ded5ee590 in userEventSourceDispatch (source=<optimized out>) at
eventdispatchers/qeventdispatcher_glib.cpp:70
#33 0x00007f2df5341c3d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f2df5341f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f2df5341fcc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f2df8f44c57 in QEventDispatcherGlib::processEvents (this=0x2303830,
flags=...) at kernel/qeventdispatcher_glib.cpp:418
#37 0x00007f2df8ee93e2 in QEventLoop::exec (this=this at entry=0x7fff5b9aef40,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#38 0x00007f2df8ef102c in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1188
#39 0x00007f2df971231c in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1510
#40 0x00007f2df9cd37a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#41 0x000000000040eebc in main (argc=1, argv=<optimized out>) at
../../app/main.cpp:54

Reported using DrKonqi

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