GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1 Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later 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: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from ./speedcrunch...done. (gdb) Starting program: /home/mutoh/speedcrunch [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Qt: gdb: -nograb added to command-line options. Use the -dograb option to enforce grabbing. [New Thread 0x7ffff3e98700 (LWP 10068)] Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" [New Thread 0x7ffff2fc4700 (LWP 10069)] Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" QTextCursor::setPosition: Position '1' out of range Scanning "s\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=\u0000 i=1 tokenText=s" "tokens.append: type=2 text=s" "state=0 ch=\u0000 i=1 tokenText=s" Scanning "s\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=\u0000 i=1 tokenText=s" "tokens.append: type=2 text=s" "state=0 ch=\u0000 i=1 tokenText=s" Scanning "s\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=\u0000 i=1 tokenText=s" "tokens.append: type=2 text=s" "state=0 ch=\u0000 i=1 tokenText=s" Scanning "s\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=\u0000 i=1 tokenText=s" "tokens.append: type=2 text=s" "state=0 ch=\u0000 i=1 tokenText=s" Scanning "s\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=\u0000 i=1 tokenText=s" "tokens.append: type=2 text=s" "state=0 ch=\u0000 i=1 tokenText=s" Scanning "s\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=\u0000 i=1 tokenText=s" "tokens.append: type=2 text=s" "state=0 ch=\u0000 i=1 tokenText=s" Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" QTextCursor::setPosition: Position '2' out of range Scanning "si\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=i i=1 tokenText=s" "state=8 ch=\u0000 i=2 tokenText=si" "tokens.append: type=2 text=si" "state=0 ch=\u0000 i=2 tokenText=si" Scanning "si\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=i i=1 tokenText=s" "state=8 ch=\u0000 i=2 tokenText=si" "tokens.append: type=2 text=si" "state=0 ch=\u0000 i=2 tokenText=si" Scanning "si\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=i i=1 tokenText=s" "state=8 ch=\u0000 i=2 tokenText=si" "tokens.append: type=2 text=si" "state=0 ch=\u0000 i=2 tokenText=si" Scanning "si\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=i i=1 tokenText=s" "state=8 ch=\u0000 i=2 tokenText=si" "tokens.append: type=2 text=si" "state=0 ch=\u0000 i=2 tokenText=si" Scanning "si\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=i i=1 tokenText=s" "state=8 ch=\u0000 i=2 tokenText=si" "tokens.append: type=2 text=si" "state=0 ch=\u0000 i=2 tokenText=si" Scanning "si\u0000" "state=0 ch=s i=0 tokenText=" "state=8 ch=s i=0 tokenText=" "state=8 ch=i i=1 tokenText=s" "state=8 ch=\u0000 i=2 tokenText=si" "tokens.append: type=2 text=si" "state=0 ch=\u0000 i=2 tokenText=si" Scanning "\u0000" "state=0 ch=\u0000 i=0 tokenText=" Thread 1 "speedcrunch" received signal SIGSEGV, Segmentation fault. 0x00000000021c9c10 in ?? () (gdb) #0 0x00000000021c9c10 in ?? () #1 0x000000000097163b in QTreeModel::data (this=0x211b470, index=..., role=10) at /home/vagrant/qt-source/qtbase/src/widgets/itemviews/qtreewidget.cpp:365 #2 0x00000000008eaecc in QAccessibleTableCell::state (this=0x2185b00) at /home/vagrant/qt-source/qtbase/src/widgets/accessible/itemviews.cpp:1031 #3 0x0000000000babdaf in AtSpiAdaptor::accessibleInterface (this=0x21c4b10, interface=0x2185b00, function=..., message=..., connection=...) at /home/vagrant/qt-source/qtbase/src/platformsupport/linuxaccessibility/atspiadaptor.cpp:1410 #4 0x0000000000ba9ecd in AtSpiAdaptor::handleMessage (this=0x21c4b10, message=..., connection=...) at /home/vagrant/qt-source/qtbase/src/platformsupport/linuxaccessibility/atspiadaptor.cpp:1276 #5 0x00000000010f3ef3 in QDBusConnectionPrivate::activateObject (this= 0x7fffe400f7f0, node=..., msg=..., pathStartPos=27) at /home/vagrant/qt-source/qtbase/src/dbus/qdbusintegrator.cpp:1431 #6 0x00000000010f4a42 in QDBusActivateObjectEvent::placeMetaCall ( this=0x7fffe4010ed0) at /home/vagrant/qt-source/qtbase/src/dbus/qdbusintegrator.cpp:1590 #7 0x00000000013689c2 in QObject::event (this=0x21c4b10, e=0x7fffe4010ed0) at /home/vagrant/qt-source/qtbase/src/corelib/kernel/qobject.cpp:1256 #8 0x00000000006d1a0c in QApplicationPrivate::notify_helper (this=0x2076bb0, receiver=0x21c4b10, e=0x7fffe4010ed0) at /home/vagrant/qt-source/qtbase/src/widgets/kernel/qapplication.cpp:3804 #9 0x00000000006ced4e in QApplication::notify (this=0x7fffffffdef0, receiver=0x21c4b10, e=0x7fffe4010ed0) at /home/vagrant/qt-source/qtbase/src/widgets/kernel/qapplication.cpp:3163 #10 0x0000000001330249 in QCoreApplication::notifyInternal2 ( receiver=0x21c4b10, event=0x7fffe4010ed0) at /home/vagrant/qt-source/qtbase/src/corelib/kernel/qcoreapplication.cpp:1015 #11 0x0000000000486a1e in QCoreApplication::sendEvent (receiver=0x21c4b10, event=0x7fffe4010ed0) at ../qt64-install/include/QtCore/qcoreapplication.h:225 #12 0x00000000013315f1 in QCoreApplicationPrivate::sendPostedEvents ( receiver=0x0, event_type=0, data=0x2076d20) at /home/vagrant/qt-source/qtbase/src/corelib/kernel/qcoreapplication.cpp:1650 #13 0x00000000013a0905 in QEventDispatcherUNIX::processEvents (this=0x20a7620, flags=...) at /home/vagrant/qt-source/qtbase/src/corelib/kernel/qeventdispatcher_unix.cpp:579 #14 0x0000000000bce070 in QUnixEventDispatcherQPA::processEvents (this= 0x20a7620, flags=...) at /home/vagrant/qt-source/qtbase/src/platformsupport/eventdispatchers/qunixeventdispatcher.cpp:62 #15 0x000000000132cd7a in QEventLoop::processEvents (this=0x7fffffffda00, flags=...) at /home/vagrant/qt-source/qtbase/src/corelib/kernel/qeventloop.cpp:128 #16 0x000000000132d065 in QEventLoop::exec (this=0x7fffffffda00, flags=...) at /home/vagrant/qt-source/qtbase/src/corelib/kernel/qeventloop.cpp:206 #17 0x000000000133099a in QCoreApplication::exec () at /home/vagrant/qt-source/qtbase/src/corelib/kernel/qcoreapplication.cpp:1285 #18 0x0000000000cb4654 in QGuiApplication::exec () at /home/vagrant/qt-source/qtbase/src/gui/kernel/qguiapplication.cpp:1607 #19 0x00000000006ce739 in QApplication::exec () at /home/vagrant/qt-source/qtbase/src/widgets/kernel/qapplication.cpp:2979 #20 0x0000000000416768 in main (argc=1, argv=0x7fffffffe028) at /speedcrunch-source/src/main.cpp:37 (gdb) quit A debugging session is active. Inferior 1 [process 10064] will be killed. Quit anyway? (y or n) [answered Y; input not from terminal]