Bug 281292

Application: gwenview (2.6.4)
KDE Platform Version: 4.6.5 (4.6.5)
Qt Version: 4.7.3
Operating System: Linux 2.6.40.3-0.fc15.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
I browsed quickly through ~20 very corrupted jpeg and png files. Almost immediately Gwenview crashed. I can reproduce this sometimes. Gwenview also seems to show very corrupted png images in a highly inconsistent way: sometimes it shows more of the picture, sometimes less even though the picture data has not changed.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Gwenview (gwenview), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f1c1c345840 (LWP 16361))]

Thread 2 (Thread 0x7f1c0fa41700 (LWP 16367)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x0000003986e745db in wait (time=18446744073709551615, this=0x2118d50) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x21550a8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00000030104ba5f7 in Gwenview::SemanticInfoThread::run (this=0x2155090) at /usr/src/debug/kdegraphics-4.6.5/gwenview/lib/semanticinfo/nepomuksemanticinfobackend.cpp:135
#4  0x0000003986e74145 in QThreadPrivate::start (arg=0x2155090) at thread/qthread_unix.cpp:320
#5  0x000000397c207b31 in start_thread (arg=0x7f1c0fa41700) at pthread_create.c:305
#6  0x000000397badfd2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f1c1c345840 (LWP 16361)):
[KCrash Handler]
#6  Gwenview::LoadingDocumentImpl::loadImage (this=0x0, invertedZoom=2) at /usr/src/debug/kdegraphics-4.6.5/gwenview/lib/document/loadingdocumentimpl.cpp:323
#7  0x0000003010462774 in scheduleImageLoading (invertedZoom=2, this=<optimized out>) at /usr/src/debug/kdegraphics-4.6.5/gwenview/lib/document/document.cpp:68
#8  Gwenview::Document::prepareDownSampledImageForZoom (this=0x25854c0, zoom=<optimized out>) at /usr/src/debug/kdegraphics-4.6.5/gwenview/lib/document/document.cpp:385
#9  0x000000000044a7ac in doPreload (this=0x21736f0) at /usr/src/debug/kdegraphics-4.6.5/gwenview/app/preloader.cpp:91
#10 Gwenview::Preloader::doPreload (this=0x21736f0) at /usr/src/debug/kdegraphics-4.6.5/gwenview/app/preloader.cpp:78
#11 0x000000000044a8d3 in Gwenview::Preloader::preload (this=0x21736f0, url=<optimized out>, size=...) at /usr/src/debug/kdegraphics-4.6.5/gwenview/app/preloader.cpp:73
#12 0x0000000000445305 in Gwenview::MainWindow::preloadNextUrl (this=0x2116870) at /usr/src/debug/kdegraphics-4.6.5/gwenview/app/mainwindow.cpp:1474
#13 0x0000000000446143 in Gwenview::MainWindow::qt_metacall (this=0x2116870, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff1e6d58b0) at /usr/src/debug/kdegraphics-4.6.5/x86_64-redhat-linux-gnu/gwenview/app/mainwindow.moc:166
#14 0x0000003986f6ceba in QMetaObject::activate (sender=0x25d0670, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#15 0x0000003986f7501f in QSingleShotTimer::timerEvent (this=0x25d0670) at kernel/qtimer.cpp:308
#16 0x0000003986f707a9 in QObject::event (this=0x25d0670, e=<optimized out>) at kernel/qobject.cpp:1181
#17 0x000000300b9b7444 in notify_helper (e=0x7fff1e6d5fc0, receiver=0x25d0670, this=0x208b440) at kernel/qapplication.cpp:4462
#18 QApplicationPrivate::notify_helper (this=0x208b440, receiver=0x25d0670, e=0x7fff1e6d5fc0) at kernel/qapplication.cpp:4434
#19 0x000000300b9bc2d1 in QApplication::notify (this=0x7fff1e6d62f0, receiver=0x25d0670, e=0x7fff1e6d5fc0) at kernel/qapplication.cpp:4341
#20 0x000000300d041d56 in KApplication::notify (this=0x7fff1e6d62f0, receiver=0x25d0670, event=0x7fff1e6d5fc0) at /usr/src/debug/kdelibs-4.6.5/kdeui/kernel/kapplication.cpp:311
#21 0x0000003986f5a1ac in QCoreApplication::notifyInternal (this=0x7fff1e6d62f0, receiver=0x25d0670, event=0x7fff1e6d5fc0) at kernel/qcoreapplication.cpp:731
#22 0x0000003986f86b52 in sendEvent (event=0x7fff1e6d5fc0, receiver=<optimized out>) at kernel/qcoreapplication.h:215
#23 QTimerInfoList::activateTimers (this=0x2090bc0) at kernel/qeventdispatcher_unix.cpp:604
#24 0x0000003986f84384 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#25 0x000000397e6427ed in g_main_dispatch (context=0x208fce0) at gmain.c:2441
#26 g_main_context_dispatch (context=0x208fce0) at gmain.c:3014
#27 0x000000397e642fc8 in g_main_context_iterate (context=0x208fce0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3092
#28 0x000000397e64325c in g_main_context_iteration (context=0x208fce0, may_block=1) at gmain.c:3155
#29 0x0000003986f84d0f in QEventDispatcherGlib::processEvents (this=0x2067ca0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#30 0x000000300ba59fde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#31 0x0000003986f596c2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#32 0x0000003986f598bf in QEventLoop::exec (this=0x7fff1e6d6250, flags=...) at kernel/qeventloop.cpp:201
#33 0x0000003986f5da07 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#34 0x0000000000422345 in main (argc=6, argv=0x7fff1e6d6618) at /usr/src/debug/kdegraphics-4.6.5/gwenview/app/main.cpp:139

Possible duplicates by query: bug 261309.

Reported using DrKonqi