Application that crashed: konqueror Version of the application: 4.3.2 (KDE 4.3.2) KDE Version: 4.3.2 (KDE 4.3.2) Qt Version: 4.5.2 Operating System: Linux 2.6.31-custom x86_64 Distribution: Ubuntu 9.04 What I was doing when the application crashed: I was dragging a link from a konqueror window, while using alt-tab to swich to another application, in this case amarok. When I dropped then link, the konqueror window crashed. -- Backtrace: Application: Konqueror (kdeinit4), signal: Segmentation fault [KCrash Handler] #5 QDragManager::move (this=0x31f91e0, globalPos=@0x7fff7dce08a0) at kernel/qdnd_x11.cpp:1642 #6 0x00007fd28e2e7229 in QDragManager::eventFilter (this=0x7fd28d914a00, o=<value optimized out>, e=0x0) at kernel/qdnd_x11.cpp:1296 #7 0x00007fd290c9da7c in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=0xf2d5d0, receiver=0x28bb100, event=0x7fff7dce0880) at kernel/qcoreapplication.cpp:707 #8 0x00007fd28e263eb6 in QApplicationPrivate::notify_helper (this=0x7fd28d914a00, receiver=0x7fd28d6e3590, e=0x0) at kernel/qapplication.cpp:4031 #9 0x00007fd28e26c8ea in QApplication::notify (this=<value optimized out>, receiver=0x28bb100, e=0x7fff7dce0880) at kernel/qapplication.cpp:3758 #10 0x00007fd28f376abb in KApplication::notify (this=0x7fff7dce5fd0, receiver=0x28bb100, event=0x7fff7dce0880) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kapplication.cpp:302 #11 0x00007fd290c9e6ac in QCoreApplication::notifyInternal (this=0x7fff7dce5fd0, receiver=0x28bb100, event=0x7fff7dce0880) at kernel/qcoreapplication.cpp:610 #12 0x00007fd28e26bb38 in QApplicationPrivate::sendMouseEvent (receiver=0x28bb100, event=0x7fff7dce0880, alienWidget=0x0, nativeWidget=0x28bb100, buttonDown=<value optimized out>, lastMouseReceiver=@0x7fd28ec9b010) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216 #13 0x00007fd28e2d5b19 in QETWidget::translateMouseEvent (this=0x28bb100, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409 #14 0x00007fd28e2d4b53 in QApplication::x11ProcessEvent (this=0x7fff7dce5fd0, event=0x7fff7dce2400) at kernel/qapplication_x11.cpp:3550 #15 0x00007fd28e2fd454 in x11EventSourceDispatch (s=0xf31260, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146 #16 0x00007fd28ccf720a in IA__g_main_context_dispatch (context=0xf30120) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:1814 #17 0x00007fd28ccfa8e0 in g_main_context_iterate (context=0xf30120, block=1, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2448 #18 0x00007fd28ccfaa7c in IA__g_main_context_iteration (context=0xf30120, may_block=1) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2511 #19 0x00007fd290cc7a8f in QEventDispatcherGlib::processEvents (this=0xea1e70, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327 #20 0x00007fd28e2fcbdf in QGuiEventDispatcherGlib::processEvents (this=0x7fd28d914a00, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202 #21 0x00007fd290c9cf42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 2110662384}) at kernel/qeventloop.cpp:149 #22 0x00007fd290c9d314 in QEventLoop::exec (this=0x30cc3a0, flags={i = 2110662528}) at kernel/qeventloop.cpp:201 #23 0x00007fd28e2e6977 in QDragManager::drag (this=0x31f91e0, o=<value optimized out>) at kernel/qdnd_x11.cpp:1969 #24 0x00007fd28e276925 in QDrag::start (this=0x3285070, request={i = 2110663360}) at kernel/qdrag.cpp:314 #25 0x00007fd27dae8b46 in KHTMLPart::handleMouseMoveEventDrag (this=0x153a4c0, event=0x15e3570) at /build/buildd/kde4libs-4.3.2/khtml/khtml_part.cpp:6297 #26 0x00007fd27daf02d9 in KHTMLPart::khtmlMouseMoveEvent (this=0x7fd28d914a00, event=0x7fd28d6e3590) at /build/buildd/kde4libs-4.3.2/khtml/khtml_part.cpp:6396 #27 0x00007fd290cae62d in QObject::event (this=0x153a4c0, e=0x7fff7dce31a0) at kernel/qobject.cpp:1142 #28 0x00007fd28e263f4d in QApplicationPrivate::notify_helper (this=0xf2d5d0, receiver=0x153a4c0, e=0x7fff7dce31a0) at kernel/qapplication.cpp:4056 #29 0x00007fd28e26c18a in QApplication::notify (this=0x7fff7dce5fd0, receiver=0x153a4c0, e=0x7fff7dce31a0) at kernel/qapplication.cpp:4021 #30 0x00007fd28f376abb in KApplication::notify (this=0x7fff7dce5fd0, receiver=0x153a4c0, event=0x7fff7dce31a0) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kapplication.cpp:302 #31 0x00007fd290c9e6ac in QCoreApplication::notifyInternal (this=0x7fff7dce5fd0, receiver=0x153a4c0, event=0x7fff7dce31a0) at kernel/qcoreapplication.cpp:610 #32 0x00007fd27daca268 in KHTMLView::mouseMoveEvent (this=0x15999c0, _mouse=0x7fff7dce3ea0) at /usr/include/qt4/QtCore/qcoreapplication.h:213 #33 0x00007fd28e2b4f58 in QWidget::event (this=0x15999c0, event=0x7fff7dce3ea0) at kernel/qwidget.cpp:7534 #34 0x00007fd28e627f0b in QFrame::event (this=0x15999c0, e=0x7fff7dce3ea0) at widgets/qframe.cpp:559 #35 0x00007fd27dac74d5 in KHTMLView::widgetEvent (this=0x15999c0, e=0x7fd28d6e3590) at /build/buildd/kde4libs-4.3.2/khtml/khtmlview.cpp:2338 #36 0x00007fd27dac7854 in KHTMLView::eventFilter (this=0x15999c0, o=0x15a2990, e=0x7fff7dce3ea0) at /build/buildd/kde4libs-4.3.2/khtml/khtmlview.cpp:2191 #37 0x00007fd290c9d9b8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x15a2990, event=0x7fff7dce3ea0) at kernel/qcoreapplication.cpp:726 #38 0x00007fd28e263f1c in QApplicationPrivate::notify_helper (this=0xf2d5d0, receiver=0x15a2990, e=0x7fff7dce3ea0) at kernel/qapplication.cpp:4052 #39 0x00007fd28e26c8ea in QApplication::notify (this=<value optimized out>, receiver=0x15a2990, e=0x7fff7dce3ea0) at kernel/qapplication.cpp:3758 #40 0x00007fd28f376abb in KApplication::notify (this=0x7fff7dce5fd0, receiver=0x15a2990, event=0x7fff7dce3ea0) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kapplication.cpp:302 #41 0x00007fd290c9e6ac in QCoreApplication::notifyInternal (this=0x7fff7dce5fd0, receiver=0x15a2990, event=0x7fff7dce3ea0) at kernel/qcoreapplication.cpp:610 #42 0x00007fd28e26bb38 in QApplicationPrivate::sendMouseEvent (receiver=0x15a2990, event=0x7fff7dce3ea0, alienWidget=0x15a2990, nativeWidget=0xff60a0, buttonDown=<value optimized out>, lastMouseReceiver=@0x7fd28ec9b010) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216 #43 0x00007fd28e2d5b19 in QETWidget::translateMouseEvent (this=0xff60a0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409 #44 0x00007fd28e2d4b53 in QApplication::x11ProcessEvent (this=0x7fff7dce5fd0, event=0x7fff7dce5a20) at kernel/qapplication_x11.cpp:3550 #45 0x00007fd28e2fd454 in x11EventSourceDispatch (s=0xf31260, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146 #46 0x00007fd28ccf720a in IA__g_main_context_dispatch (context=0xf30120) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:1814 #47 0x00007fd28ccfa8e0 in g_main_context_iterate (context=0xf30120, block=1, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2448 #48 0x00007fd28ccfaa7c in IA__g_main_context_iteration (context=0xf30120, may_block=1) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2511 #49 0x00007fd290cc7a8f in QEventDispatcherGlib::processEvents (this=0xea1e70, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327 #50 0x00007fd28e2fcbdf in QGuiEventDispatcherGlib::processEvents (this=0x7fd28d914a00, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202 #51 0x00007fd290c9cf42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 2110676240}) at kernel/qeventloop.cpp:149 #52 0x00007fd290c9d314 in QEventLoop::exec (this=0x7fff7dce5d50, flags={i = 2110676320}) at kernel/qeventloop.cpp:201 #53 0x00007fd290c9f5e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888 #54 0x00007fd284bd44e2 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at /build/buildd/kdebase-4.3.2/apps/konqueror/src/konqmain.cpp:271 #55 0x0000000000407215 in launch (argc=2, _name=0xee71a8 "/usr/bin/konqueror", args=<value optimized out>, cwd=0x0, envc=0, envs=0xee71cd "", reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x40a3a1 "0") at /build/buildd/kde4libs-4.3.2/kinit/kinit.cpp:677 #56 0x0000000000407a38 in handle_launcher_request (sock=8, who=<value optimized out>) at /build/buildd/kde4libs-4.3.2/kinit/kinit.cpp:1169 #57 0x0000000000407fe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.3.2/kinit/kinit.cpp:1362 #58 0x0000000000408b26 in main (argc=2, argv=0x7fff7dce76b8, envp=0x7fff7dce76d0) at /build/buildd/kde4libs-4.3.2/kinit/kinit.cpp:1793 Reported using DrKonqi
- Were you using Desktop Effects / Compositing ? - Is the crash reproducible again ? It looks like some other batch of Qt drag&drop related bug reports. Thanks
Hi, I'm using desktop effects and composing and I can reproduce it. Basically it seems to be triggered by something like the following: 1. Open Konqueror 2. Drag Link 3. Press alt-tab 4. Move mouse cursor out of konqueror (still dragging) 5. Press alt-tab to switch to konqueror again (still dragging) 6. crash. Note that I never released the mouse button. Thread 1 (Thread 0x7ff29fad1750 (LWP 10623)): [KCrash Handler] #5 QDragManager::move (this=0x2636c20, globalPos=@0x7fff6d85e280) at kernel/qdnd_x11.cpp:1642 #6 0x00007ff29cc4d229 in QDragManager::eventFilter (this=0x7ff29c27aa00, o=<value optimized out>, e=0x0) at kernel/qdnd_x11.cpp:1296 #7 0x00007ff29f603a7c in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=0xc46e20, receiver=0x2f79d20, event=0x7fff6d85e260) at kernel/qcoreapplication.cpp:707 #8 0x00007ff29cbc9eb6 in QApplicationPrivate::notify_helper (this=0x7ff29c27aa00, receiver=0x7ff29c049590, e=0x0) at kernel/qapplication.cpp:4031 #9 0x00007ff29cbd28ea in QApplication::notify (this=<value optimized out>, receiver=0x2f79d20, e=0x7fff6d85e260) at kernel/qapplication.cpp:3758
Merging with bug 192270 as the situation and the backtrace match. Thanks *** This bug has been marked as a duplicate of bug 192270 ***