Bug 315753

Application: gwenview (2.9.4)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.5.0-25-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
The crash occurred after opening a single file in Gwenview and then closing it.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Gwenview (gwenview), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f45f39c8780 (LWP 10227))]

Thread 3 (Thread 0x7f45de493700 (LWP 10229)):
#0  0x00007f45f0416303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f45ecbddd84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f45ecbddea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f45f2836c16 in QEventDispatcherGlib::processEvents (this=0x7f45d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f45f28072bf in QEventLoop::processEvents (this=this@entry=0x7f45de492dd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f45f2807548 in QEventLoop::exec (this=0x7f45de492dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f45f2708b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f45f27e79af in QInotifyFileSystemWatcherEngine::run (this=0x1fc5700) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f45f270baec in QThreadPrivate::start (arg=0x1fc5700) at thread/qthread_unix.cpp:338
#9  0x00007f45ed2a0e9a in start_thread (arg=0x7f45de493700) at pthread_create.c:308
#10 0x00007f45f0421cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f45dd4fb700 (LWP 10230)):
#0  __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:55
#1  __pthread_mutex_unlock (mutex=0x7f45d0000a60) at pthread_mutex_unlock.c:290
#2  0x00007f45ecc1ae51 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f45ecbddd79 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f45ecbddea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f45f2836c16 in QEventDispatcherGlib::processEvents (this=0x7f45d00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f45f28072bf in QEventLoop::processEvents (this=this@entry=0x7f45dd4fadd0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f45f2807548 in QEventLoop::exec (this=0x7f45dd4fadd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f45f2708b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f45f27e79af in QInotifyFileSystemWatcherEngine::run (this=0x22d6240) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f45f270baec in QThreadPrivate::start (arg=0x22d6240) at thread/qthread_unix.cpp:338
#11 0x00007f45ed2a0e9a in start_thread (arg=0x7f45dd4fb700) at pthread_create.c:308
#12 0x00007f45f0421cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f45f39c8780 (LWP 10227)):
[KCrash Handler]
#6  0x00007f45f21f8797 in lockInline (this=0x1f49a18) at /usr/include/qt4/QtCore/qmutex.h:187
#7  QMutexLocker (m=0x1f49a18, this=<synthetic pointer>) at /usr/include/qt4/QtCore/qmutex.h:109
#8  Nepomuk::Resource::~Resource (this=0x7f45c80344e0, __in_chrg=<optimized out>) at ../../nepomuk/core/resource.cpp:142
#9  0x00007f45f21f8a49 in Nepomuk::Resource::~Resource (this=0x7f45c80344e0, __in_chrg=<optimized out>) at ../../nepomuk/core/resource.cpp:147
#10 0x00007f45f28191ca in QMetaCallEvent::~QMetaCallEvent (this=0x7f45c803dc60, __in_chrg=<optimized out>) at kernel/qobject.cpp:509
#11 0x00007f45f2819239 in QMetaCallEvent::~QMetaCallEvent (this=0x7f45c803dc60, __in_chrg=<optimized out>) at kernel/qobject.cpp:518
#12 0x00007f45f280bac8 in QCoreApplicationPrivate::~QCoreApplicationPrivate (this=0x1d8a4e0, __in_chrg=<optimized out>) at kernel/qcoreapplication.cpp:449
#13 0x00007f45f1078e79 in QApplicationPrivate::~QApplicationPrivate (this=0x1d8a4e0, __in_chrg=<optimized out>) at kernel/qapplication.cpp:223
#14 0x00007f45f281effc in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62
#15 ~QScopedPointer (this=0x7fff81dc0ca8, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100
#16 QObject::~QObject (this=0x7fff81dc0ca0, __in_chrg=<optimized out>) at kernel/qobject.cpp:817
#17 0x00007f45f1083211 in QApplication::~QApplication (this=0x7fff81dc0ca0, __in_chrg=<optimized out>) at kernel/qapplication.cpp:1100
#18 0x00000000004273be in main (argc=6, argv=0x7fff81dc0e08) at ../../app/main.cpp:142

Possible duplicates by query: bug 309671, bug 305815.

Reported using DrKonqi