Backtrace: Starting program: /home/michael/bug/helloworld [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffece58700 (LWP 3741)] Program received signal SIGSEGV, Segmentation fault. QWidgetPrivate::drawWidget (this=this@entry=0x694320, pdev=pdev@entry=0x6d3eb0, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=0x6d8740) at kernel/qwidget.cpp:5552 5552 kernel/qwidget.cpp: Datei oder Verzeichnis nicht gefunden. #0 QWidgetPrivate::drawWidget (this=this@entry=0x694320, pdev=pdev@entry=0x6d3eb0, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=0x6d8740) at kernel/qwidget.cpp:5552 paintEngine = 0x69e4b0 grabbed = asRoot = false alsoOnScreen = false toBePainted = {d = 0x6b0f30, static shared_empty = {ref = {atomic = {_q_value = -1}}, qt_rgn = 0x7ffff7734a00 }} onScreen = false recursive = true alsoInvisible = false #1 0x00007ffff78cecc1 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x6cf870, pdev=pdev@entry=0x6d3eb0, siblings=..., index=, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x6d8740) at kernel/qwidget.cpp:5743 wRegion = {d = 0x6b0f30, static shared_empty = {ref = {atomic = {_q_value = -1}}, qt_rgn = 0x7ffff7734a00 }} w = boundingRect = {x1 = , y1 = 0, x2 = , y2 = 201} dirtyBoundingRect = false exludeOpaqueChildren = false excludeNativeChildren = false widgetPos = {xp = 1, yp = 1} hasMask = false #2 0x00007ffff78cdb07 in QWidgetPrivate::drawWidget (this=0x6cf870, pdev=0x6d3eb0, rgn=..., offset=..., flags=flags@entry=5, sharedPainter=sharedPainter@entry=0x0, backingStore=0x6d8740) at kernel/qwidget.cpp:5600 asRoot = true alsoOnScreen = false toBePainted = {d = 0x787250, static shared_empty = {ref = {atomic = {_q_value = -1}}, qt_rgn = 0x7ffff7734a00 }} onScreen = recursive = true alsoInvisible = false #3 0x00007ffff789e0bb in QWidgetBackingStore::doSync (this=this@entry=0x6d8740) at kernel/qwidgetbackingstore.cpp:1230 flags = 5 repaintAllWidgets = false inTopLevelResize = tlwRect = surfaceGeometry = dirtyCopy = {d = 0x698e90, static shared_empty = {ref = {atomic = {_q_value = -1}}, qt_rgn = 0x7ffff7734a00 }} updatesDisabled = toClean = {d = 0x698e90, static shared_empty = {ref = {atomic = {_q_value = -1}}, qt_rgn = 0x7ffff7734a00 }} opaqueNonOverlappedWidgets = {a = 32, s = 0, ptr = 0x7fffffffcb10, { array = "\000\000\000\000\000\000\000\000\020px\000\000\000\000\000\020px\000\000\000\000\000\020px\000\000\000\000\000\000\000\000\000\001\000\000\000\000\063P\244>\247\232\260`\337\377\377\377\177\000\000`\337\377\377\377\177\000\000\220\315\377\377\377\177\000\000\240\367a\000\000\000\000\000\001\004\000\000\000\000\000\000\240\337\377\377\377\177\000\000\005\000 \002\000\000\000\000\334\n\211\367\377\177\000\000`\337\377\377\377\177\000\000\220\315\377\377\377\177\000\000`\337\377\377\377\177\000\000\000\000\000\000\000\000\000\000\001\004\000\000\000\000\000\000\260_\211\367\377\177\000\000\000\000\000\000\000\000\000\000\067\311Q\367\377\177\000\000\240\367a\000\000\000\000\000\002\000\000\000\000\000\000\000 \322\377\377\377\177\000\000"..., q_for_alignment_1 = 0, q_for_alignment_2 = 0}} beginPaintInfo = {wasFlushed = 0, nothingToPaint = 0, backingStoreRecreated = 0} #4 0x00007ffff789e459 in QWidgetBackingStore::sync (this=0x6d8740) at kernel/qwidgetbackingstore.cpp:1036 No locals. #5 0x00007ffff78bf21f in QWidgetPrivate::syncBackingStore (this=0x6cf870) at kernel/qwidget.cpp:1894 No locals. #6 0x00007ffff78d4218 in QWidget::event (this=this@entry=0x7fffffffdf60, event=event@entry=0x7fffffffd060) at kernel/qwidget.cpp:8962 No locals. #7 0x00007ffff79d273e in QFrame::event (this=this@entry=0x7fffffffdf60, e=e@entry=0x7fffffffd060) at widgets/qframe.cpp:526 result = #8 0x00007ffff7a5c333 in QAbstractScrollArea::event (this=0x7fffffffdf60, e=0x7fffffffd060) at widgets/qabstractscrollarea.cpp:1142 No locals. #9 0x00007ffff7890adc in QApplicationPrivate::notify_helper (this=this@entry=0x61f7a0, receiver=receiver@entry=0x7fffffffdf60, e=e@entry=0x7fffffffd060) at kernel/qapplication.cpp:3720 consumed = #10 0x00007ffff7895fb0 in QApplication::notify (this=0x7fffffffdfa0, receiver=0x7fffffffdf60, e=0x7fffffffd060) at kernel/qapplication.cpp:3503 w = 0x7fffffffdf60 extra = isProxyWidget = res = #11 0x00007ffff6fa33ab in QCoreApplication::notifyInternal (this=0x7fffffffdfa0, receiver=receiver@entry=0x7fffffffdf60, event=event@entry=0x7fffffffd060) at kernel/qcoreapplication.cpp:935 threadData = 0x61f910 loopLevelCounter = {threadData = 0x61f910} result = false cbdata = {0x7fffffffdf60, 0x7fffffffd060, 0x7fffffffd00f} d = #12 0x00007ffff789f51f in sendEvent (event=0x7fffffffd060, receiver=0x7fffffffdf60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228 No locals. #13 QWidgetBackingStore::sendUpdateRequest (this=, widget=0x7fffffffdf60, updateTime=) at kernel/qwidgetbackingstore.cpp:456 event = {_vptr.QEvent = 0x7ffff71ddc70 , static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff716a140 , data = 0x7ffff7169b80 , static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 77, posted = 0, spont = 0, m_accept = 1, reserved = 13} #14 0x00007ffff78a010d in QWidgetBackingStore::markDirty (this=0x6d8740, rect=..., widget=, updateTime=updateTime@entry=QWidgetBackingStore::UpdateNow, bufferState=bufferState@entry=QWidgetBackingStore::BufferInvalid) at kernel/qwidgetbackingstore.cpp:639 widgetRect = {x1 = 0, y1 = 0, x2 = 201, y2 = 201} translatedRect = {x1 = 0, y1 = 0, x2 = 201, y2 = 201} #15 0x00007ffff78ebde4 in QWidgetWindow::repaintWindow (this=0x69e030) at kernel/qwidgetwindow.cpp:648 this = 0x69e030 #16 0x00007ffff6fd412e in QMetaObject::activate (sender=sender@entry=0x69e030, signalOffset=, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffffffd2d0) at kernel/qobject.cpp:3717 receiverInSameThread = sw = {receiver = 0x69e030, previousSender = 0x7fffffffd4b0, currentSender = {sender = 0x69e030, signal = 3, ref = 1}, switched = true} callFunction = 0x7ffff7c3df70 receiver = 0x69e030 method_relative = 1 c = 0x695c50 last = 0x695c50 locker = {val = 140737339357136} connectionLists = {connectionLists = 0x69a180} list = signal_index = 3 empty_argv = {0x0} currentThreadId = 0x7ffff7fb7780 #17 0x00007ffff6fd47a7 in QMetaObject::activate (sender=sender@entry=0x69e030, m=m@entry=0x7ffff771fbc0 , local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffffffd2d0) at kernel/qobject.cpp:3582 No locals. #18 0x00007ffff72d7c2f in QWindow::screenChanged (this=this@entry=0x69e030, _t1=_t1@entry=0x0) at .moc/moc_qwindow.cpp:626 _a = {0x0, 0x7fffffffd2c8} #19 0x00007ffff72d8485 in QWindowPrivate::emitScreenChangedRecursion (this=this@entry=0x6b6a90, newScreen=newScreen@entry=0x0) at kernel/qwindow.cpp:366 No locals. #20 0x00007ffff72dbbb3 in QWindowPrivate::setTopLevelScreen (this=0x6b6a90, newScreen=0x0, recreate=) at kernel/qwindow.cpp:387 shouldRecreate = #21 0x00007ffff72dbd55 in QWindow::screenDestroyed (this=0x69e030, object=) at kernel/qwindow.cpp:1720 wasVisible = true #22 0x00007ffff6fd3aba in call (a=0x7fffffffd520, r=0x69e030, this=0x6952d0) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124 No locals. #23 QMetaObject::activate (sender=sender@entry=0x639ee0, signalOffset=, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffffffd520) at kernel/qobject.cpp:3702 obj = {d = 0x6952d0} receiverInSameThread = sw = {receiver = 0x69e030, previousSender = 0x0, currentSender = {sender = 0x639ee0, signal = 0, ref = 1}, switched = true} callFunction = receiver = 0x69e030 method_relative = 0 c = 0x693ba0 last = 0x698840 locker = {val = 140737339356968} connectionLists = {connectionLists = 0x69a150} list = signal_index = 0 empty_argv = {0x0} currentThreadId = 0x7ffff7fb7780 #24 0x00007ffff6fd47a7 in QMetaObject::activate (sender=sender@entry=0x639ee0, m=m@entry=0x7ffff71d9980 , local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffffffd520) at kernel/qobject.cpp:3582 No locals. #25 0x00007ffff6fd484f in QObject::destroyed (this=this@entry=0x639ee0, _t1=_t1@entry=0x639ee0) at .moc/moc_qobject.cpp:206 _a = {0x0, 0x7fffffffd518} #26 0x00007ffff6fdd1bb in QObject::~QObject (this=0x639ee0, __in_chrg=) at kernel/qobject.cpp:903 d = 0x639f00 #27 0x00007ffff72fa589 in QScreen::~QScreen (this=0x639ee0, __in_chrg=) at kernel/qscreen.cpp:77 No locals. #28 0x00007ffff72c0e2a in QPlatformScreen::~QPlatformScreen (this=0x63a4c0, __in_chrg=) at kernel/qplatformscreen.cpp:57 No locals. #29 0x00007ffff7f32179 in QXcbScreen::~QXcbScreen (this=0x63a4c0, __in_chrg=) at qxcbscreen.cpp:222 No locals. #30 0x00007ffff7f24fbb in QXcbConnection::updateScreens (this=this@entry=0x62c100) at qxcbconnection.cpp:286 i = 0 activeScreens = {q_hash = {{d = 0x6d78e0, e = 0x6d78e0}}} it = {data = 0x62db84, rem = 0, index = 864} screenNumber = xcbScreenNumber = newScreens = {= {}, {p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x6d7820}, d = 0x6d7820}} primaryScreen = #31 0x00007ffff7f25c8d in QXcbConnection::handleXcbEvent (this=this@entry=0x62c100, event=event@entry=0x7fffe8003e60) at qxcbconnection.cpp:961 change_event = result = 0 dispatcher = 0x64e2a0 handled = false response_type = 89 #32 0x00007ffff7f26ecb in QXcbConnection::processXcbEvents (this=0x62c100) at qxcbconnection.cpp:1303 accepted = false it = 0x7ffff707a430 event = 0x7fffe8003e60 eventGuard = {d = 0x7fffe8003e60} response_type = i = 0 connection_error = eventqueue = 0x637d98 #33 0x00007ffff6fd4e8a in QObject::event (this=0x62c100, e=) at kernel/qobject.cpp:1245 mce = sw = {receiver = 0x62c100, previousSender = 0x0, currentSender = {sender = 0x637d80, signal = 5, ref = 1}, switched = true} #34 0x00007ffff7890adc in QApplicationPrivate::notify_helper (this=this@entry=0x61f7a0, receiver=receiver@entry=0x62c100, e=e@entry=0x7fffe8003fb0) at kernel/qapplication.cpp:3720 consumed = #35 0x00007ffff7895fb0 in QApplication::notify (this=0x7fffffffdfa0, receiver=0x62c100, e=0x7fffe8003fb0) at kernel/qapplication.cpp:3503 w = 0x62c100 extra = isProxyWidget = res = #36 0x00007ffff6fa33ab in QCoreApplication::notifyInternal (this=0x7fffffffdfa0, receiver=0x62c100, event=event@entry=0x7fffe8003fb0) at kernel/qcoreapplication.cpp:935 threadData = 0x61f910 loopLevelCounter = {threadData = 0x61f910} result = false cbdata = {0x62c100, 0x7fffe8003fb0, 0x7fffffffdbff} d = #37 0x00007ffff6fa541b in sendEvent (event=0x7fffe8003fb0, receiver=) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228 No locals. #38 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x61f910) at kernel/qcoreapplication.cpp:1552 e = 0x7fffe8003fb0 pe = r = unlocker = {m = } event_deleter = {d = 0x7fffe8003fb0} locker = {val = 6420792} startOffset = 0 i = @0x61f92c: 1 cleanup = {receiver = 0x0, event_type = 0, data = 0x61f910, exceptionCaught = true} #39 0x00007ffff6fa5a18 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410 data = #40 0x00007ffff6ffbf33 in postEventSourceDispatch (s=0x64e300) at kernel/qeventdispatcher_glib.cpp:271 source = 0x64e300 #41 0x00007ffff5a0fc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #42 0x00007ffff5a0ff20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #43 0x00007ffff5a0ffcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #44 0x00007ffff6ffc347 in QEventDispatcherGlib::processEvents (this=0x64e2a0, flags=...) at kernel/qeventdispatcher_glib.cpp:418 d = 0x64abe0 canWait = true savedFlags = {i = 0} result = #45 0x00007ffff6fa0b62 in QEventLoop::exec (this=this@entry=0x7fffffffdee0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 locker = {val = 6420992} ref = {d = 0x69bf30, locker = @0x7fffffffde60, exceptionCaught = true} d = 0x69bf30 #46 0x00007ffff6fa87ac in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188 threadData = 0x61f910 eventLoop = {, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff710dc80 , data = 0x7ffff710db40 , static_metacall = 0x7ffff6fdd430 , relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x69bf30}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff7155780 , data = 0x7ffff7152f00 , static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff71d9980 , stringdata = 0x7ffff7169740 , data = 0x7ffff71696c0 , static_metacall = 0x7ffff7053550 , relatedMetaObjects = 0x0, extradata = 0x0}}} returnCode = #47 0x0000000000401361 in main () No symbol table info available. A debugging session is active. Inferior 1 [process 3731] will be killed. Quit anyway? (y or n)