Bug 323497

Application: plasma-desktop (4.10.5)
KDE Platform Version: 4.10.5
Qt Version: 4.8.2
Operating System: Linux 3.5.3-030503-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed: I wanted to add a new plasma widget. I went to download the widget via the application that is part of the plasma panel. Plasma-desktop crashed, then restarted. This happens 90% of the time. Eventually, after retrying everything over and over again, the download app not only opens up but stops crashing. If I log out and back in, however, the crashing starts all over again.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f54882fa780 (LWP 12496))]

Thread 3 (Thread 0x7f545eb34700 (LWP 12529)):
#0  0x00007f5487bdb8cd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f547b6d48cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f547b699ba4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f547b699fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f547b69a164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5484754926 in QEventDispatcherGlib::processEvents (this=0x7f54580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f5484723e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f54847240b7 in QEventLoop::exec (this=0x7f545eb33dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f5484623077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f5484703b6f in QInotifyFileSystemWatcherEngine::run (this=0x17a2e90) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f548462609b in QThreadPrivate::start (arg=0x17a2e90) at thread/qthread_unix.cpp:307
#11 0x00007f547bd96e9a in start_thread (arg=0x7f545eb34700) at pthread_create.c:308
#12 0x00007f5487be8ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5455dc8700 (LWP 12534)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5481506022 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f5481506059 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f547bd96e9a in start_thread (arg=0x7f5455dc8700) at pthread_create.c:308
#4  0x00007f5487be8ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f54882fa780 (LWP 12496)):
[KCrash Handler]
#6  0x0000000007530070 in ?? ()
#7  0x00007f548635d9f1 in QDeclarativeItem::~QDeclarativeItem (this=0x7a1a400, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#8  0x00007f5454f90961 in ~QDeclarativeElement (this=0x7a1a400, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x7a1a400, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#10 0x00007f548473e978 in QObject::event (this=0x7a1a400, e=<optimized out>) at kernel/qobject.cpp:1176
#11 0x00007f5483aa67b4 in notify_helper (e=0x73b42e0, receiver=0x7a1a400, this=0x6cbb40) at kernel/qapplication.cpp:4556
#12 QApplicationPrivate::notify_helper (this=0x6cbb40, receiver=0x7a1a400, e=0x73b42e0) at kernel/qapplication.cpp:4528
#13 0x00007f5483aab583 in QApplication::notify (this=0x6bb840, receiver=0x7a1a400, e=0x73b42e0) at kernel/qapplication.cpp:4417
#14 0x00007f548540b6b6 in KApplication::notify (this=0x6bb840, receiver=0x7a1a400, event=0x73b42e0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f548472532c in QCoreApplication::notifyInternal (this=0x6bb840, receiver=0x7a1a400, event=0x73b42e0) at kernel/qcoreapplication.cpp:915
#16 0x00007f548472910a in sendEvent (event=0x73b42e0, receiver=0x7a1a400) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x64a1f0) at kernel/qcoreapplication.cpp:1539
#18 0x00007f5484754493 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#19 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#20 0x00007f547b699d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f547b69a0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f547b69a164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f54847548bf in QEventDispatcherGlib::processEvents (this=0x64bad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#24 0x00007f5483b4ecde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007f5484723e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007f54847240b7 in QEventLoop::exec (this=0x7fff4cd56c60, flags=...) at kernel/qeventloop.cpp:204
#27 0x00007f5484729407 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#28 0x00007f5487ef203f in kdemain (argc=1, argv=0x7fff4cd57048) at ../../../../plasma/desktop/shell/main.cpp:126
#29 0x00007f5487b1676d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff4cd57048, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4cd57038) at libc-start.c:226
#30 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 302931.

Possible duplicates by query: bug 322872, bug 322687, bug 322085, bug 321630, bug 321192.

Reported using DrKonqi