https://bugs.kde.org/show_bug.cgi?id=439216
Bug ID: 439216 Summary: [Okular] : Closing the Print Preview still/again causes a crash Product: okular Version: unspecified Platform: Compiled Sources OS: Linux Status: REPORTED Keywords: drkonqi Severity: crash Priority: NOR Component: general Assignee: okular-devel@kde.org Reporter: rjvber...@gmail.com Target Milestone: --- Application: okular (1.9.70) (Compiled from sources) Qt Version: 5.9.8 Frameworks Version: 5.60.0 Operating System: Linux 4.14.23-ck1-mainline-core2-rjvb x86_64 Windowing system: X11 Distribution: Ubuntu 14.04.6 LTS -- Information about the crash: - What I was doing when the application crashed: I had checked the Print Preview and closed it by hitting Escape. The crash was immediate. This is the exact same crash as the Okular4 one in the linked report which I reported years ago and that was supposed to be fixed. Seeing that I didn't even hold off on reporting this until I had time to check if maybe it had been fixed in the current code. Whatever fix had been done back in the day, either it was removed or a different code path was added to triggering this nullptr dereference. Why not add a proper nullptr check at the problem location?! -- Backtrace: Application: Okular (okular), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7efc28f43840 (LWP 28083))] Thread 7 (Thread 0x7efbf5b79700 (LWP 31518)): #0 0x00007efc21771404 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007efc23b7a93b in QWaitConditionPrivate::wait (this=0x2316a50, time=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/thread/qwaitcondition_unix.cpp:143 #2 0x00007efc23b7a6e5 in QWaitCondition::wait (this=0x2316a38, mutex=0x2316a30, time=18446744073709551615) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/thread/qwaitcondition_unix.cpp:215 #3 0x00007efc23b74d23 in QSemaphore::acquire (this=0x23168d0, n=1) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/thread/qsemaphore.cpp:143 #4 0x00007efbf4ee25d6 in GSRendererThread::run (this=0x23168c0) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/generators/spectre/rendererthread.cpp:50 #5 0x00007efc23b79423 in QThreadPrivate::start (arg=0x23168c0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/thread/qthread_unix.cpp:368 #6 0x00007efc2176d184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #7 0x00007efc22e9103d in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 6 (Thread 0x7efc06ffd700 (LWP 28089)): #0 0x00007efc21771404 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007efc0e68136b in util_queue_thread_func () from /opt/local/lib/dri/i965_dri.so #2 0x00007efc0e681736 in impl_thrd_routine () from /opt/local/lib/dri/i965_dri.so #3 0x00007efc2176d184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007efc22e9103d in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 5 (Thread 0x7efc077fe700 (LWP 28088)): #0 0x00007efc21771404 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007efc0e68136b in util_queue_thread_func () from /opt/local/lib/dri/i965_dri.so #2 0x00007efc0e681736 in impl_thrd_routine () from /opt/local/lib/dri/i965_dri.so #3 0x00007efc2176d184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007efc22e9103d in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 4 (Thread 0x7efc07fff700 (LWP 28087)): #0 0x00007efc21771404 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007efc0e68136b in util_queue_thread_func () from /opt/local/lib/dri/i965_dri.so #2 0x00007efc0e681736 in impl_thrd_routine () from /opt/local/lib/dri/i965_dri.so #3 0x00007efc2176d184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007efc22e9103d in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 3 (Thread 0x7efc0cf12700 (LWP 28086)): #0 0x00007efc21771404 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x00007efc0e68136b in util_queue_thread_func () from /opt/local/lib/dri/i965_dri.so #2 0x00007efc0e681736 in impl_thrd_routine () from /opt/local/lib/dri/i965_dri.so #3 0x00007efc2176d184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #4 0x00007efc22e9103d in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 2 (Thread 0x7efc178ba700 (LWP 28084)): #0 0x00007efc22e83c9d in poll () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007efc1bfb4024 in g_main_context_poll (context=<optimized out>, timeout=-1, priority=<optimized out>, fds=0x7efc10003540, n_fds=1) at gmain.c:4209 #2 g_main_context_iterate (context=0x7efc10001600, block=<optimized out>, dispatch=<optimized out>, self=<optimized out>) at gmain.c:3903 #3 0x00007efc1bfb4307 in g_main_context_iteration (context=0x7efc10001600, may_block=1) at gmain.c:3969 #4 0x00007efc23d745db in QEventDispatcherGlib::processEvents (this=0x7efc100008c0, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425 #5 0x00007efc23d20472 in QEventLoop::processEvents (this=0x7efc178b9d88, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qeventloop.cpp:134 #6 QEventLoop::exec (this=0x7efc178b9d88, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qeventloop.cpp:212 #7 0x00007efc23b75867 in QThread::exec (this=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/thread/qthread.cpp:515 #8 0x00007efc241a8630 in QDBusConnectionManager::run (this=0x7efc244082e0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/dbus/qdbusconnection.cpp:178 #9 0x00007efc23b79423 in QThreadPrivate::start (arg=0x7efc244082e0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/thread/qthread_unix.cpp:368 #10 0x00007efc2176d184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #11 0x00007efc22e9103d in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 1 (Thread 0x7efc28f43840 (LWP 28083)): [KCrash Handler] #6 QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x8) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/include/QtCore/../../src/corelib/tools/qscopedpointer.h:140 #7 qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > > (p=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/include/QtCore/../../src/corelib/global/qglobal.h:1008 #8 QAction::d_func (this=0x0) at .moc/../../../../../qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qaction.h:63 #9 QAction::isChecked (this=0x0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qaction.cpp:986 #10 0x00007efbfd825cd3 in PageView::capability (this=0x22a38f0, capability=Okular::View::Continuous) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/ui/pageview.cpp:1607 #11 0x00007efbfd825cfd in non-virtual thunk to PageView::capability(Okular::View::ViewCapability) const () from /opt/local/share/qt5/plugins/okularpart.so #12 0x00007efbfd46c690 in Okular::DocumentPrivate::saveViewsInfo (this=<optimized out>, view=0x22a3930, e=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/core/document.cpp:771 #13 0x00007efbfd472510 in Okular::DocumentPrivate::saveDocumentInfo (this=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/core/document.cpp:1335 #14 0x00007efbfd47a86d in Okular::Document::closeDocument (this=0x21ed400) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/core/document.cpp:2769 #15 0x00007efbfd7b9f35 in Okular::Part::closeUrl (this=0x2226330, promptToSave=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/part.cpp:1903 #16 0x00007efbfd7b93f3 in Okular::Part::~Part (this=0x2226330, vtt=0x7efbfdab3030 <VTT for Okular::Part>) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/part.cpp:971 #17 0x00007efbfd7ba140 in Okular::Part::~Part (this=0x2226330) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/part.cpp:964 #18 Okular::Part::~Part (this=0x2226330) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/part.cpp:964 #19 0x00007efc23d4bd79 in QObjectPrivate::deleteChildren (this=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qobject.cpp:1998 #20 0x00007efc24c518cf in QWidget::~QWidget (this=0x7ffc16cf5040) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qwidget.cpp:1701 #21 0x00007efbfd7e9f8d in Okular::FilePrinterPreview::~FilePrinterPreview (this=0x7ffc16cf5040) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/ui/fileprinterpreview.cpp:165 #22 0x00007efbfd7c37de in Okular::Part::slotPrintPreview (this=0x1c30790) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/part.cpp:3043 #23 0x00007efc23d5386c in QMetaObject::activate (sender=<optimized out>, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qobject.cpp:3772 #24 0x00007efc24c22b9f in QAction::triggered (this=<optimized out>, _t1=<optimized out>) at .moc/moc_qaction.cpp:370 #25 QAction::activate (this=0x1dba540, event=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qaction.cpp:1159 #26 0x00007efc24d9d823 in QMenuPrivate::activateCausedStack (this=0x1ee43a0, causedStack=..., action=0x1dba540, action_e=QAction::Trigger, self=true) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/widgets/qmenu.cpp:1323 #27 0x00007efc24d9af3e in QMenuPrivate::activateAction (this=0x1ee43a0, action=0x1dba540, action_e=QAction::Trigger, self=true) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/widgets/qmenu.cpp:1400 #28 0x00007efc24da1b9f in QMenu::mouseReleaseEvent (this=<optimized out>, e=0x7ffc16cf5790) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/widgets/qmenu.cpp:2888 #29 0x00007efc24c61f44 in QWidget::event (this=0x1eb3950, event=0x7ffc16cf5790) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qwidget.cpp:8890 #30 0x00007efc24da22d8 in QMenu::event (this=0x1eb3950, e=0x7ffc16cf5790) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/widgets/qmenu.cpp:3010 #31 0x00007efc24c2b801 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x1eb3950, e=0x7ffc16cf5790) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qapplication.cpp:3722 #32 0x00007efc24c2e4bc in QApplication::notify (this=<optimized out>, receiver=<optimized out>, e=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qapplication.cpp:3198 #33 0x00007efc23d245e6 in QCoreApplication::notifyInternal2 (receiver=0x1eb3950, event=0x7ffc16cf5790) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qcoreapplication.cpp:1031 #34 0x00007efc24c2c17c in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233 #35 QApplicationPrivate::sendMouseEvent (receiver=0x1eb3950, event=0x7ffc16cf5790, alienWidget=0x0, nativeWidget=0x1eb3950, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=64) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qapplication.cpp:2704 #36 0x00007efc24c803b2 in QWidgetWindow::handleMouseEvent (this=<optimized out>, event=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qwidgetwindow.cpp:523 #37 0x00007efc24c7eedf in QWidgetWindow::event (this=0x20cbe40, event=0x7ffc16cf5ac0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qwidgetwindow.cpp:250 #38 0x00007efc24c2b801 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x20cbe40, e=0x7ffc16cf5ac0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qapplication.cpp:3722 #39 0x00007efc24c2cb69 in QApplication::notify (this=0x7ffc16cf5f28, receiver=0x20cbe40, e=0x7ffc16cf5ac0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/widgets/kernel/qapplication.cpp:3093 #40 0x00007efc23d245e6 in QCoreApplication::notifyInternal2 (receiver=0x20cbe40, event=0x7ffc16cf5ac0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qcoreapplication.cpp:1031 #41 0x00007efc24516bcc in QCoreApplication::sendSpontaneousEvent (receiver=0x20cbe40, event=0x7efc24a97c30 <vtable for QMouseEvent+16>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236 #42 QGuiApplicationPrivate::processMouseEvent (e=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/gui/kernel/qguiapplication.cpp:1956 #43 0x00007efc244fee9b in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/gui/kernel/qwindowsysteminterface.cpp:946 #44 0x00007efc1693d76d in userEventSourceDispatch (source=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp:77 #45 0x00007efc1bfb398c in g_main_dispatch (context=<optimized out>) at gmain.c:3170 #46 g_main_context_dispatch (context=<optimized out>) at gmain.c:3835 #47 0x00007efc1bfb409e in g_main_context_iterate (context=0x7efc10003030, block=<optimized out>, dispatch=<optimized out>, self=<optimized out>) at gmain.c:3908 #48 0x00007efc1bfb4307 in g_main_context_iteration (context=0x7efc10003030, may_block=1) at gmain.c:3969 #49 0x00007efc23d745db in QEventDispatcherGlib::processEvents (this=0x1998a40, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425 #50 0x00007efc23d20472 in QEventLoop::processEvents (this=0x7ffc16cf5e80, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qeventloop.cpp:134 #51 QEventLoop::exec (this=0x7ffc16cf5e80, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qeventloop.cpp:212 #52 0x00007efc23d24cad in QCoreApplication::exec () at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.9.8/qtbase/src/corelib/kernel/qcoreapplication.cpp:1304 #53 0x000000000040dfba in main (argc=2, argv=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-okular/kf5-okular-devel/work/okular-5/shell/main.cpp:95 The reporter indicates this bug may be a duplicate of or related to bug 348000. Possible duplicates by query: bug 439043, bug 433252, bug 426698, bug 426297, bug 426090. Reported using DrKonqi -- You are receiving this mail because: You are the assignee for the bug.