- Program received signal SIGSEGV, Segmentation fault.
- 0x00007f124c9d14e8in QTextFormatCollection::format()
- (gdb) bt
- #00x00007f124c9d14e8in QTextFormatCollection::format()
- #10x00007f124ca115abin QTextCursor::charFormat ()
- #20x00007f124ca13914in QTextCursor::insertText ()
- #30x000000000041cce5in TConsole::printMessageOnDisplay ()
- #40x00000000004180d2in mudlet::printMessageOnDisplay ()
- #60x0000000000424cfbin cTelnet::connectIt ()
- #70x00000000004174c3in mudlet::slot_connection_dlg_finnished ()
- #90x00007f124c036134in QMetaObject::activate () from /usr/lib/libQtCore.so.4
- #100x00000000004bd9d0in dlgConnectionProfiles::signal_establish_connection ()
- #110x0000000000437c2bin dlgConnectionProfiles::slot_connection_dlg_finnished
- #120x00000000004bda58in dlgConnectionProfiles::qt_metacall ()
- #130x00007f124c036134in QMetaObject::activate () from /usr/lib/libQtCore.so.4
- #140x00007f124cbf68ddin QDialog::qt_metacall () from /usr/lib/libQtGui.so.4
- #150x00000000004bda05in dlgConnectionProfiles::qt_metacall ()
- #160x00007f124c036134in QMetaObject::activate () from /usr/lib/libQtCore.so.4
- #170x00007f124cd63787in QAbstractButton::clicked ()
- ---Type <return> to continue, or q <return> to quit---
- Signal source - throttle - QT GUI Sink. Starting with a blank slate in GRC and building the flow graph works fine on one device; but the same flow graph on the second laptop opens and closes immediately with return code -11. Discuss-gnuradio QT GUI Segmentation Fault, Michael Rahaim Discuss-gnuradio QT GUI Segmentation Fault.
- When using signals and slots with multiple threads, see Signals and Slots Across Threads. See also Thread Support in Qt, QObject::connect, qRegisterMetaType, and QDECLAREMETATYPE. Enum Qt:: ContextMenuPolicy. This enum type defines the various policies a widget can have with respect to showing a context menu.
- Detailed Description. QObject is the heart of the Qt Object Model.The central feature in this model is a very powerful mechanism for seamless object communication called signals and slots.You can connect a signal to a slot with connect and destroy the connection with disconnect. To avoid never ending notification loops you can temporarily block signals with blockSignals.
- Segmentation Fault happening when trying to pass objects by reference in qt program Tag: c, qt, segmentation-fault, pass-by-reference I am using qt and have made it so that two dialogs appear before my centralwidget.
- Use F10 to step over until QtCreator crashes with the result shown on the screen shot: 'The iterator stopped because it received a signal from the operating system'. Signal name: SIGSEGV Signal meaning: Segmentation fault.
- No reviews matched the request. Check your Options in the drop-down menu of this sections header.
La romere casino no deposit bonus codes 2018. Every time when I execute my qt-application I get a 'Segmentation Fault'. I am using buildroot v2.3.0 including qt-embedded-linux version 4.4.3. I tried to compile one of the demos with 'qmake -r' fallowed by a 'make'. Free quick hits slots game. So, I copied the demo (mainwindow) to my NGW. After I start the demo with './mainwindow -qws' I get a Segmenation fault.
Exit Signal Segmentation Fault 11
gistfile1.txt
Signal Sigsegv Segmentation Fault
qt-creator-build $ ./bin/qtcreator -version |
Qt Creator 4.6.82 based on Qt 5.6.2 |
# Open https://github.com/mirroring/dhcp/blob/v4_3/server/dhcpd.conf.5 |
# Then qtcreator crashed. |
qt-creator-build $ gdb ./bin/qtcreator |
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1 |
Copyright (C) 2016 Free Software Foundation, Inc. |
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> |
This is free software: you are free to change and redistribute it. |
There is NO WARRANTY, to the extent permitted by law. Type 'show copying' |
and 'show warranty' for details. |
This GDB was configured as 'x86_64-linux-gnu'. |
Type 'show configuration' for configuration details. |
For bug reporting instructions, please see: |
<http://www.gnu.org/software/gdb/bugs/>. |
Find the GDB manual and other documentation resources online at: |
<http://www.gnu.org/software/gdb/documentation/>. |
For help, type 'help'. |
Type 'apropos word' to search for commands related to 'word'.. |
Reading symbols from ./bin/qtcreator..done. |
(gdb) run ~/tmp/dhcpd.conf.5 |
Starting program: /home/roy/src/qt-creator-build/bin/qtcreator ~/tmp/dhcpd.conf.5 |
[Thread debugging using libthread_db enabled] |
Using host libthread_db library '/lib/x86_64-linux-gnu/libthread_db.so.1'. |
[New Thread 0x7fffeb657700 (LWP 26681)] |
[New Thread 0x7fffcc4d9700 (LWP 26690)] |
[New Thread 0x7fffcbbd2700 (LWP 26691)] |
[New Thread 0x7fffcb3d1700 (LWP 26692)] |
[New Thread 0x7fffcabd0700 (LWP 26693)] |
[New Thread 0x7fffc9797700 (LWP 26724)] |
[New Thread 0x7fffb3ded700 (LWP 26745)] |
[Thread 0x7fffb3ded700 (LWP 26745) exited] |
Thread 1 'qtcreator' received signal SIGSEGV, Segmentation fault. |
0x0000000000000018 in ?? () |
(gdb) bt |
#0 0x0000000000000018 in ?? () |
#1 0x00007fffe2f08ff7 in TextEditor::Internal::Rule::progressFinished (this=0x27cca90) at ././././qt-creator/src/plugins/texteditor/generichighlighter/rule.cpp:184 |
#2 0x00007fffe2f0c19c in TextEditor::Internal::ProgressData::~ProgressData (this=0x2816200, __in_chrg=<optimized out>) |
at ././././qt-creator/src/plugins/texteditor/generichighlighter/progressdata.cpp:44 |
#3 0x00007fffe2f12d61 in TextEditor::Highlighter::highlightBlock (this=0x2139920, text=..) |
at ././././qt-creator/src/plugins/texteditor/generichighlighter/highlighter.cpp:231 |
#4 0x00007fffe2efe0e0 in TextEditor::SyntaxHighlighterPrivate::reformatBlock (this=0x21380f0, block=.., from=0, charsRemoved=0, charsAdded=130562) |
at ././././qt-creator/src/plugins/texteditor/syntaxhighlighter.cpp:219 |
#5 0x00007fffe2efdf64 in TextEditor::SyntaxHighlighterPrivate::reformatBlocks (this=0x21380f0, from=0, charsRemoved=0, charsAdded=130562) |
at ././././qt-creator/src/plugins/texteditor/syntaxhighlighter.cpp:198 |
#6 0x00007fffe2f004f6 in TextEditor::SyntaxHighlighterPrivate::rehighlight (this=0x21380f0, cursor=.., operation=QTextCursor::End) |
at ././././qt-creator/src/plugins/texteditor/syntaxhighlighter.cpp:63 |
#7 0x00007fffe2efe84c in TextEditor::SyntaxHighlighter::rehighlight (this=0x2139920) at ././././qt-creator/src/plugins/texteditor/syntaxhighlighter.cpp:351 |
#8 0x00007fffe2e1fa3f in TextEditor::TextDocument::applyFontSettings (this=0x1031ad0) at ././././qt-creator/src/plugins/texteditor/textdocument.cpp:401 |
#9 0x00007fffe2e1f971 in TextEditor::TextDocument::triggerPendingUpdates (this=0x1031ad0) at ././././qt-creator/src/plugins/texteditor/textdocument.cpp:378 |
#10 0x00007fffe2e50b4c in TextEditor::TextEditorWidget::triggerPendingUpdates (this=0x21291a0) at ././././qt-creator/src/plugins/texteditor/texteditor.cpp:7242 |
#11 0x00007fffe2e50971 in TextEditor::TextEditorWidget::showEvent (this=0x21291a0, e=0x7fffffffba20) at ././././qt-creator/src/plugins/texteditor/texteditor.cpp:7208 |
#12 0x00007ffff71b34a8 in QWidget::event(QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#13 0x00007ffff72b4e9e in QFrame::event(QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#14 0x00007ffff733eb86 in QAbstractScrollArea::event(QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#15 0x00007ffff7366635 in QPlainTextEdit::event(QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#16 0x00007fffe2e349bf in TextEditor::TextEditorWidget::event (this=0x21291a0, e=0x7fffffffba20) at ././././qt-creator/src/plugins/texteditor/texteditor.cpp:2995 |
#17 0x00007ffff716ddcc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#18 0x00007ffff7173306 in QApplication::notify(QObject*, QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#19 0x00007ffff67f1048 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /opt/qt56/lib/libQt5Core.so.5 |
#20 0x00007ffff71b01b3 in QWidgetPrivate::show_helper() () from /opt/qt56/lib/libQt5Widgets.so.5 |
#21 0x00007ffff71b0017 in QWidgetPrivate::showChildren(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#22 0x00007ffff71b00af in QWidgetPrivate::show_helper() () from /opt/qt56/lib/libQt5Widgets.so.5 |
#23 0x00007ffff71b2ecd in QWidget::setVisible(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#24 0x00007ffff71b0028 in QWidgetPrivate::showChildren(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#25 0x00007ffff71b00af in QWidgetPrivate::show_helper() () from /opt/qt56/lib/libQt5Widgets.so.5 |
#26 0x00007ffff71b0017 in QWidgetPrivate::showChildren(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#27 0x00007ffff71b00af in QWidgetPrivate::show_helper() () from /opt/qt56/lib/libQt5Widgets.so.5 |
#28 0x00007ffff71b2ecd in QWidget::setVisible(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#29 0x00007fffe3ab30a4 in Core::EditorManagerPlaceHolder::showEvent (this=0xcd1e00) at ././././qt-creator/src/plugins/coreplugin/editormanager/editormanager.cpp:156 |
#30 0x00007ffff71b34a8 in QWidget::event(QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#31 0x00007ffff716ddcc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#32 0x00007ffff7173306 in QApplication::notify(QObject*, QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#33 0x00007ffff67f1048 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /opt/qt56/lib/libQt5Core.so.5 |
#34 0x00007ffff71b01b3 in QWidgetPrivate::show_helper() () from /opt/qt56/lib/libQt5Widgets.so.5 |
#35 0x00007ffff71b2ecd in QWidget::setVisible(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#36 0x00007ffff71b0028 in QWidgetPrivate::showChildren(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#37 0x00007ffff71b00af in QWidgetPrivate::show_helper() () from /opt/qt56/lib/libQt5Widgets.so.5 |
#38 0x00007ffff71b2ecd in QWidget::setVisible(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#39 0x00007ffff71b0028 in QWidgetPrivate::showChildren(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#40 0x00007ffff71b00af in QWidgetPrivate::show_helper() () from /opt/qt56/lib/libQt5Widgets.so.5 |
#41 0x00007ffff71b2ecd in QWidget::setVisible(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#42 0x00007ffff71b0028 in QWidgetPrivate::showChildren(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#43 0x00007ffff71b00af in QWidgetPrivate::show_helper() () from /opt/qt56/lib/libQt5Widgets.so.5 |
#44 0x00007ffff71b2ecd in QWidget::setVisible(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#45 0x00007ffff71b0028 in QWidgetPrivate::showChildren(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#46 0x00007ffff71b00af in QWidgetPrivate::show_helper() () from /opt/qt56/lib/libQt5Widgets.so.5 |
#47 0x00007ffff71b2ecd in QWidget::setVisible(bool) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#48 0x00007ffff71946f5 in QStackedLayout::setCurrentIndex(int) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#49 0x00007fffe3a84f2f in Core::Internal::FancyTabWidget::showWidget (this=0xac4ca0, index=1) at ././././qt-creator/src/plugins/coreplugin/fancytabwidget.cpp:574 |
#50 0x00007fffe3a87356 in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<int>, void, void (Core::Internal::FancyTabWidget::*)(int)>::call (f= |
(void (Core::Internal::FancyTabWidget::*)(Core::Internal::FancyTabWidget * const, int)) 0x7fffe3a84efa <Core::Internal::FancyTabWidget::showWidget(int)>, o=0xac4ca0, |
arg=0x7fffffffc890) at /opt/qt56/include/QtCore/qobjectdefs_impl.h:501 |
#51 0x00007fffe3a871c5 in QtPrivate::FunctionPointer<void (Core::Internal::FancyTabWidget::*)(int)>::call<QtPrivate::List<int>, void> (f= |
(void (Core::Internal::FancyTabWidget::*)(Core::Internal::FancyTabWidget * const, int)) 0x7fffe3a84efa <Core::Internal::FancyTabWidget::showWidget(int)>, o=0xac4ca0, |
arg=0x7fffffffc890) at /opt/qt56/include/QtCore/qobjectdefs_impl.h:520 |
#52 0x00007fffe3a86ef8 in QtPrivate::QSlotObject<void (Core::Internal::FancyTabWidget::*)(int), QtPrivate::List<int>, void>::impl (which=1, this_=0x9901c0, r=0xac4ca0, |
a=0x7fffffffc890, ret=0x0) at /opt/qt56/include/QtCore/qobject_impl.h:143 |
#53 0x00007ffff681d9c4 in QMetaObject::activate(QObject*, int, int, void**) () from /opt/qt56/lib/libQt5Core.so.5 |
#54 0x00007fffe3c91bf5 in Core::Internal::FancyTabBar::currentChanged (this=0xac4f60, _t1=1) at .moc/debug-shared/moc_fancytabwidget.cpp:252 |
#55 0x00007fffe3a83ef3 in Core::Internal::FancyTabBar::setCurrentIndex (this=0xac4f60, index=1) at ././././qt-creator/src/plugins/coreplugin/fancytabwidget.cpp:367 |
#56 0x00007fffe3a84ef6 in Core::Internal::FancyTabWidget::setCurrentIndex (this=0xac4ca0, index=1) at ././././qt-creator/src/plugins/coreplugin/fancytabwidget.cpp:568 |
---Type <return> to continue, or q <return> to quit--- |
#57 0x00007fffe3b509ed in Core::ModeManagerPrivate::activateModeHelper (this=0xb173f0, id=..) at ././././qt-creator/src/plugins/coreplugin/modemanager.cpp:158 |
#58 0x00007fffe3b5097a in Core::ModeManager::activateMode (id=..) at ././././qt-creator/src/plugins/coreplugin/modemanager.cpp:147 |
#59 0x00007fffe3abcd8f in Core::Internal::EditorManagerPrivate::activateEditor (view=0xa8e8e0, editor=0x2131750, flags=..) |
at ././././qt-creator/src/plugins/coreplugin/editormanager/editormanager.cpp:1270 |
#60 0x00007fffe3ab9433 in Core::Internal::EditorManagerPrivate::openEditor (view=0xa8e8e0, fileName=.., editorId=.., flags=.., newEditor=0x0) |
at ././././qt-creator/src/plugins/coreplugin/editormanager/editormanager.cpp:692 |
#61 0x00007fffe3ac501c in Core::EditorManager::openEditor (fileName=.., editorId=.., flags=.., newEditor=0x0) |
at ././././qt-creator/src/plugins/coreplugin/editormanager/editormanager.cpp:2635 |
#62 0x00007fffe3a67d10 in Core::Internal::MainWindow::openFiles (this=0xa89a00, fileNames=.., |
flags=(Core::ICore::SwitchMode | Core::ICore::CanContainLineAndColumnNumbers), workingDirectory=..) at ././././qt-creator/src/plugins/coreplugin/mainwindow.cpp:822 |
#63 0x00007fffe3b7b521 in Core::ICore::openFiles (arguments=.., flags=(Core::ICore::SwitchMode | Core::ICore::CanContainLineAndColumnNumbers)) |
at ././././qt-creator/src/plugins/coreplugin/icore.cpp:579 |
#64 0x00007fffe25a3a14 in ProjectExplorer::ProjectExplorerPluginPrivate::<lambda()>::operator()(void) const (__closure=0x1615020) |
at ././././qt-creator/src/plugins/projectexplorer/projectexplorer.cpp:1997 |
#65 0x00007fffe25bb1e1 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, ProjectExplorer::ProjectExplorerPluginPrivate::restoreSession()::<lambda()> >::call(ProjectExplorer::ProjectExplorerPluginPrivate::<lambda()> &, void **) (f=.., arg=0x7fffffffcf20) at /opt/qt56/include/QtCore/qobjectdefs_impl.h:495 |
#66 0x00007fffe25bac4e in QtPrivate::Functor<ProjectExplorer::ProjectExplorerPluginPrivate::restoreSession()::<lambda()>, 0>::call<QtPrivate::List<>, void>(ProjectExplorer::ProjectExplorerPluginPrivate::<lambda()> &, void *, void **) (f=.., arg=0x7fffffffcf20) at /opt/qt56/include/QtCore/qobjectdefs_impl.h:552 |
#67 0x00007fffe25b9a25 in QtPrivate::QFunctorSlotObject<ProjectExplorer::ProjectExplorerPluginPrivate::restoreSession()::<lambda()>, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=1, this_=0x1615010, r=0x9b1570, a=0x7fffffffcf20, ret=0x0) at /opt/qt56/include/QtCore/qobject_impl.h:192 |
#68 0x00007ffff6829bf6 in ?? () from /opt/qt56/lib/libQt5Core.so.5 |
#69 0x00007ffff681e473 in QObject::event(QEvent*) () from /opt/qt56/lib/libQt5Core.so.5 |
#70 0x00007ffff716ddcc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#71 0x00007ffff7173306 in QApplication::notify(QObject*, QEvent*) () from /opt/qt56/lib/libQt5Widgets.so.5 |
#72 0x00007ffff67f1048 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /opt/qt56/lib/libQt5Core.so.5 |
#73 0x00007ffff684521e in QTimerInfoList::activateTimers() () from /opt/qt56/lib/libQt5Core.so.5 |
#74 0x00007ffff6845751 in ?? () from /opt/qt56/lib/libQt5Core.so.5 |
#75 0x00007ffff50e2197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 |
#76 0x00007ffff50e23f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 |
#77 0x00007ffff50e249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 |
#78 0x00007ffff684632f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /opt/qt56/lib/libQt5Core.so.5 |
#79 0x00007ffff67eed9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /opt/qt56/lib/libQt5Core.so.5 |
#80 0x00007ffff67f745c in QCoreApplication::exec() () from /opt/qt56/lib/libQt5Core.so.5 |
#81 0x0000000000410ed6 in main (argc=2, argv=0x7fffffffdc88) at ./././qt-creator/src/app/main.cpp:546 |
(gdb) quit |
A debugging session is active. |
Inferior 1 [process 26677] will be killed. |
Quit anyway? (y or n) y |
Qt Signal Slot Example
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