Version: (using Devel) Compiler: GCC 4.4 OS: Linux Installed from: Compiled sources I got a krash in Krita that I paste below. drkonqui2 says this is not a good backtrace, but I have debugging symbols enabled, as you can see. It might think that the call to address 0 (which is the cause of the crash) is a missing symbol.
This is the backtrace that drkonqui2 says is "not really useful": Application: Krita (krita), signal: Segmentation fault [KCrash Handler] #6 0x00000000 in ?? () #7 0xb74b192b in QGLWidget::glDraw (this=0xad928a8) at /local/src/qt-x11-opensource-src-4.5.1/src/opengl/qgl.cpp:3458 #8 0xb74b041e in QGLWidget::paintEvent (this=0xad928a8) at /local/src/qt-x11-opensource-src-4.5.1/src/opengl/qgl.cpp:3261 #9 0xb5b8d942 in QWidget::event (this=0xad928a8, event=0xbffe9924) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qwidget.cpp:7659 #10 0xb74b36bc in QGLWidget::event (this=0xad928a8, e=0xbffe9924) at /local/src/qt-x11-opensource-src-4.5.1/src/opengl/qgl.cpp:3244 #11 0xb5b3827c in QApplicationPrivate::notify_helper (this=0x8088b68, receiver=0xad928a8, e=0xbffe9924) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication.cpp:4057 #12 0xb5b3fa54 in QApplication::notify (this=0xbffec4bc, receiver=0xad928a8, e=0xbffe9924) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication.cpp:4022 #13 0xb69ee93b in KApplication::notify (this=0xbffec4bc, receiver=0xad928a8, event=0xbffe9924) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/kernel/kapplication.cpp:307 #14 0xb7fcddcb in QCoreApplication::notifyInternal (this=0xbffec4bc, receiver=0xad928a8, event=0xbffe9924) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.cpp:610 #15 0xb5b96205 in QCoreApplication::sendSpontaneousEvent (event=<value optimized out>, receiver=<value optimized out>) at ../../include/QtCore/../../../../src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.h:216 #16 QWidgetPrivate::drawWidget (event=<value optimized out>, receiver=<value optimized out>) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qwidget.cpp:5052 #17 0xb5d5133d in QWidgetPrivate::repaint_sys (this=0xad928f0, rgn=...) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/painting/qbackingstore.cpp:1536 #18 0xb5b86d5e in QWidgetPrivate::syncBackingStore (this=0xad928f0) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qwidget.cpp:1599 #19 0xb5b8e123 in QWidget::event (this=0xad928a8, event=0x874e6b0) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qwidget.cpp:7799 #20 0xb74b36bc in QGLWidget::event (this=0xad928a8, e=0x874e6b0) at /local/src/qt-x11-opensource-src-4.5.1/src/opengl/qgl.cpp:3244 #21 0xb5b3827c in QApplicationPrivate::notify_helper (this=0x8088b68, receiver=0xad928a8, e=0x874e6b0) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication.cpp:4057 #22 0xb5b3fa54 in QApplication::notify (this=0xbffec4bc, receiver=0xad928a8, e=0x874e6b0) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication.cpp:4022 #23 0xb69ee93b in KApplication::notify (this=0xbffec4bc, receiver=0xad928a8, event=0x874e6b0) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/kernel/kapplication.cpp:307 #24 0xb7fcddcb in QCoreApplication::notifyInternal (this=0xbffec4bc, receiver=0xad928a8, event=0x874e6b0) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.cpp:610 #25 0xb7fce898 in QCoreApplication::sendEvent (event=<value optimized out>, receiver=<value optimized out>) at ../../include/QtCore/../../../../src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.h:213 #26 QCoreApplicationPrivate::sendPostedEvents (event=<value optimized out>, receiver=<value optimized out>) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.cpp:1247 #27 0xb7fcea6d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.cpp:1140 #28 0xb7ff952f in QCoreApplication::sendPostedEvents () at ../../include/QtCore/../../../../src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.h:218 #29 postEventSourceDispatch () at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qeventdispatcher_glib.cpp:209 #30 0xb56839c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #31 0xb5687083 in ?? () from /usr/lib/libglib-2.0.so.0 #32 0xb5687241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #33 0xb7ff915c in QEventDispatcherGlib::processEvents (this=0x80506a8, flags=...) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qeventdispatcher_glib.cpp:324 #34 0xb5bd7845 in QGuiEventDispatcherGlib::processEvents (this=0x80506a8, flags=...) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qguieventdispatcher_glib.cpp:202 #35 0xb7fcc359 in QEventLoop::processEvents (this=0xbffea210, flags=...) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qeventloop.cpp:149 #36 0xb7fcc7a2 in QEventLoop::exec (this=0xbffea210, flags=...) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qeventloop.cpp:200 #37 0xb6057bb3 in QDialog::exec (this=0xbffea250) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/dialogs/qdialog.cpp:498 #38 0xad36ef3c in Glsl::slotActivate (this=0xa47fc40) at /local/svn/kde/trunk/koffice/krita/plugins/extensions/glsl/glsl.cc:71 #39 0xad36efb5 in Glsl::qt_metacall (this=0xa47fc40, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbffea3e8) at /local/build/koffice/krita/plugins/extensions/glsl/glsl.moc:68 #40 0xb7fe3ef8 in QMetaObject::activate (sender=0xa4825d8, from_signal_index=5, to_signal_index=6, argv=0xbffea3e8) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qobject.cpp:3111 #41 0xb7fe4388 in QMetaObject::activate (sender=0xa4825d8, m=0xb63cc108, from_local_signal_index=1, to_local_signal_index=2, argv=0xbffea3e8) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qobject.cpp:3205 #42 0xb5b31b91 in QAction::triggered (this=0xa4825d8, _t1=false) at .moc/release-shared/moc_qaction.cpp:236 #43 0xb5b33112 in QAction::activate (this=0xa4825d8, event=QAction::Trigger) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qaction.cpp:1160 #44 0xb5fb25cc in QMenuPrivate::activateCausedStack (this=0xa5b6370, causedStack=..., action=0xa4825d8, action_e=QAction::Trigger, self=true) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/widgets/qmenu.cpp:967 #45 0xb5fb8ceb in QMenuPrivate::activateAction (this=0xa5b6370, action=0xa4825d8, action_e=QAction::Trigger, self=<value optimized out>) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/widgets/qmenu.cpp:1060 #46 0xb5fb98b7 in QMenu::mouseReleaseEvent (this=0xa5ae708, e=0xbffeac44) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/widgets/qmenu.cpp:2254 #47 0xb6ac8fc2 in KMenu::mouseReleaseEvent (this=0xa5ae708, e=0xbffeac44) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/widgets/kmenu.cpp:456 #48 0xb5b8db77 in QWidget::event (this=0xa5ae708, event=0xbffeac44) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qwidget.cpp:7521 #49 0xb5fbbbbc in QMenu::event (this=0xa5ae708, e=0xbffeac44) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/widgets/qmenu.cpp:2353 #50 0xb5b3827c in QApplicationPrivate::notify_helper (this=0x8088b68, receiver=0xa5ae708, e=0xbffeac44) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication.cpp:4057 #51 0xb5b4032b in QApplication::notify (this=0xbffec4bc, receiver=0xa5ae708, e=0xbffeac44) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication.cpp:3759 #52 0xb69ee93b in KApplication::notify (this=0xbffec4bc, receiver=0xa5ae708, event=0xbffeac44) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/kernel/kapplication.cpp:307 #53 0xb7fcddcb in QCoreApplication::notifyInternal (this=0xbffec4bc, receiver=0xa5ae708, event=0xbffeac44) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.cpp:610 #54 0xb5b3f3ae in QCoreApplication::sendSpontaneousEvent (event=<value optimized out>, receiver=<value optimized out>) at ../../include/QtCore/../../../../src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.h:216 #55 QApplicationPrivate::sendMouseEvent (event=<value optimized out>, receiver=<value optimized out>) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication.cpp:2925 #56 0xb5bae8c0 in QETWidget::translateMouseEvent (this=0xa5ae708, event=0xbffec1a0) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication_x11.cpp:4382 #57 0xb5bad8cc in QApplication::x11ProcessEvent (this=0xbffec4bc, event=0xbffec1a0) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication_x11.cpp:3444 #58 0xb5bd8112 in x11EventSourceDispatch (s=0x808ba38, callback=0, user_data=0x0) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qguieventdispatcher_glib.cpp:146 #59 0xb56839c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #60 0xb5687083 in ?? () from /usr/lib/libglib-2.0.so.0 #61 0xb5687241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #62 0xb7ff915c in QEventDispatcherGlib::processEvents (this=0x80506a8, flags=...) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qeventdispatcher_glib.cpp:324 #63 0xb5bd7845 in QGuiEventDispatcherGlib::processEvents (this=0x80506a8, flags=...) at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qguieventdispatcher_glib.cpp:202 #64 0xb7fcc359 in QEventLoop::processEvents (this=0xbffec444, flags=...) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qeventloop.cpp:149 #65 0xb7fcc7a2 in QEventLoop::exec (this=0xbffec444, flags=...) at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qeventloop.cpp:200 #66 0xb7fceb2f in QCoreApplication::exec () at /local/src/qt-x11-opensource-src-4.5.1/src/corelib/kernel/qcoreapplication.cpp:888 #67 0xb5b380f7 in QApplication::exec () at /local/src/qt-x11-opensource-src-4.5.1/src/gui/kernel/qapplication.cpp:3526 #68 0xb80c5591 in kdemain (argc=1, argv=0xbffec5b4) at /local/svn/kde/trunk/koffice/krita/main.cc:44 #69 0x0804887b in main (argc=1, argv=0xbffec5b4) at /local/build/koffice/krita/krita_dummy.cpp:3
SVN commit 960955 by gkiagia: BUG: 190882 If the very first line of the backtrace is missing all kinds of information, then we ignore this line as it is probably a call to a function at an invalid address. Also add a test for this special case. M +8 -0 backtraceparser.cpp A tests/backtraceparsertest/backtraceparsertest_data/test_bug190882 M +1 -0 tests/backtraceparsertest/backtraceparsertest_data/usefulness_map WebSVN link: http://websvn.kde.org/?view=rev&revision=960955