[kde] [Bug 349775] New: System Settings crashed when changing themes and decorations

Fidel Leon fidelleon at mykolab.com
Wed Jul 1 08:44:51 BST 2015 

https://bugs.kde.org/show_bug.cgi?id=349775

            Bug ID: 349775
           Summary: System Settings crashed when changing themes and
                    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: fidelleon at mykolab.com

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:
System Settings crashes consistently each time I try to play with desktop and
window appearance settings.

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 0x7f29c35de780 (LWP 1777))]

Thread 3 (Thread 0x7f29b0cda700 (LWP 1778)):
#0  0x00007f29bfd438dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f29be05db72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f29be05f64f in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f29b3a6d099 in QXcbEventReader::run (this=0xd0e9e0) at
qxcbconnection.cpp:1105
#4  0x00007f29c03c4b0e in QThreadPrivate::start (arg=0xd0e9e0) at
thread/qthread_unix.cpp:337
#5  0x00007f29bcf776aa in start_thread (arg=0x7f29b0cda700) at
pthread_create.c:333
#6  0x00007f29bfd4eeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f298d496700 (LWP 1939)):
#0  0x00007f29bfd3f49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f29b8ebff45 in ?? () from
/usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007f29bca9c2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f29bca5896c in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f29bca58e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f29bca58fcc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f29c065bc6c in QEventDispatcherGlib::processEvents
(this=0x7f29800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f29c06003e2 in QEventLoop::exec (this=this at entry=0x7f298d495e40,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f29c03bfb44 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:503
#9  0x00007f29c03c4b0e in QThreadPrivate::start (arg=0x1368210) at
thread/qthread_unix.cpp:337
#10 0x00007f29bcf776aa in start_thread (arg=0x7f298d496700) at
pthread_create.c:333
#11 0x00007f29bfd4eeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f29c35de780 (LWP 1777)):
[KCrash Handler]
#6  0x00007f29bf2abf97 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f29bf256151 in QV4::ExecutionEngine::~ExecutionEngine() () from
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f29bf38e0d5 in QV8Engine::~QV8Engine() () from
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f29bf38e2b9 in QV8Engine::~QV8Engine() () from
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f29bf1f3061 in QJSEngine::~QJSEngine() () from
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f29bf2f03c5 in QQmlEngine::~QQmlEngine() () from
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f29bf2f0499 in QQmlEngine::~QQmlEngine() () from
/usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f298eefabe2 in cleanup (pointer=<optimized out>) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qscopedpointer.h:54
#14 reset (other=0x0, this=0x7f298f1886c8
<Aurorae::Helper::instance()::s_helper+8>) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qscopedpointer.h:149
#15 Aurorae::Helper::unref (this=0x7f298f1886c0
<Aurorae::Helper::instance()::s_helper>) at
../../../../clients/aurorae/src/aurorae.cpp:119
#16 0x00007f298eefe908 in unref (this=<optimized out>) at
../../../../clients/aurorae/src/aurorae.cpp:273
#17 Aurorae::Decoration::~Decoration (this=0x2301890, __in_chrg=<optimized
out>) at ../../../../clients/aurorae/src/aurorae.cpp:267
#18 0x00007f298eefe929 in Aurorae::Decoration::~Decoration (this=0x2301890,
__in_chrg=<optimized out>) at ../../../../clients/aurorae/src/aurorae.cpp:280
#19 0x00007f29c0634778 in QObject::event (this=0x2301890, e=<optimized out>) at
kernel/qobject.cpp:1236
#20 0x00007f29c13eeb2c in QApplicationPrivate::notify_helper (this=0xce0550,
receiver=0x2301890, e=0x10f8760) at kernel/qapplication.cpp:3720
#21 0x00007f29c13f4000 in QApplication::notify (this=0x7ffe13a25640,
receiver=0x2301890, e=0x10f8760) at kernel/qapplication.cpp:3503
#22 0x00007f29c0602c2b in QCoreApplication::notifyInternal
(this=0x7ffe13a25640, receiver=0x2301890, event=event at entry=0x10f8760) at
kernel/qcoreapplication.cpp:935
#23 0x00007f29c0604c9b in sendEvent (event=0x10f8760, receiver=<optimized out>)
at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver at entry=0x0,
event_type=event_type at entry=0, data=0xcdf770) at
kernel/qcoreapplication.cpp:1552
#25 0x00007f29c0605298 in QCoreApplication::sendPostedEvents
(receiver=receiver at entry=0x0, event_type=event_type at entry=0) at
kernel/qcoreapplication.cpp:1410
#26 0x00007f29c065b843 in postEventSourceDispatch (s=0xd5a510) at
kernel/qeventdispatcher_glib.cpp:271
#27 0x00007f29bca58c3d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f29bca58f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f29bca58fcc in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f29c065bc57 in QEventDispatcherGlib::processEvents (this=0xd4e0a0,
flags=...) at kernel/qeventdispatcher_glib.cpp:418
#31 0x00007f29c06003e2 in QEventLoop::exec (this=this at entry=0x7ffe13a25520,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#32 0x00007f29c060802c in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1188
#33 0x00007f29c0e2931c in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1510
#34 0x00007f29c13ea7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#35 0x000000000040eebc in main (argc=1, argv=<optimized out>) at
../../app/main.cpp:54

Reported using DrKonqi

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