Bug 271158

Application: cantor (0.2)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-28-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
- What I was doing when the application crashed: Trying to open the curve sketching example for maxima 0.1 cws as downloaded from GHNS. I have also removed cantorrc as suggested in the invalid crash report and tried with a different example, both times no luck. This happens since KDE 4.5 times at least if I can remember correctly (have never used cantor really due to this problem).

The crash can be reproduced every time.

-- Backtrace:
Application: Cantor (cantor), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f2832099760 (LWP 4397))]

Thread 2 (Thread 0x7f281d555700 (LWP 4399)):
#0  0x00007f282bf9bc9d in __pthread_mutex_unlock_usercnt (mutex=0x183f378) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x183f378) at pthread_mutex_unlock.c:290
#2  0x00007f282bad9a05 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#3  0x00007f282bad9e78 in ?? () from /lib/libglib-2.0.so.0
#4  0x00007f282bada45c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x00007f282f5631e6 in QEventDispatcherGlib::processEvents (this=0x1834dc0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#6  0x00007f282f535a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#7  0x00007f282f535dec in QEventLoop::exec (this=0x7f281d554db0, flags=) at kernel/qeventloop.cpp:201
#8  0x00007f282f4402fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#9  0x00007f282f5155f8 in QInotifyFileSystemWatcherEngine::run (this=0x183e010) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f282f44327e in QThreadPrivate::start (arg=0x183e010) at thread/qthread_unix.cpp:266
#11 0x00007f282bf98971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#12 0x00007f282ee2b92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f2832099760 (LWP 4397)):
[KCrash Handler]
#6  d_func (this=0x0, row=0, col=0) at text/qtexttable.h:137
#7  QTextTable::cellAt (this=0x0, row=0, col=0) at text/qtexttable.cpp:590
#8  0x00007f281cb4352e in CommandEntry::updatePrompt (this=0x1cd5260) at ../../../cantor/src/commandentry.cpp:818
#9  0x00007f281cb3284c in CommandEntry::qt_metacall (this=0x1cd5260, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff0ba18d00) at moc_commandentry.cpp:88
#10 0x00007f282f54eb27 in QMetaObject::activate (sender=0x186e450, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#11 0x00007f281cb3add6 in enableExpressionNumbering (this=0x186e450) at ../../../cantor/src/worksheet.cpp:820
#12 Worksheet::loginToSession (this=0x186e450) at ../../../cantor/src/worksheet.cpp:107
#13 0x00007f281cb3f32d in Worksheet::qt_metacall (this=0x186e450, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x1dbef00) at ./worksheet.moc:191
#14 0x00007f282f548bde in QObject::event (this=0x186e450, e=0x7fff0ba18b70) at kernel/qobject.cpp:1219
#15 0x00007f282ff6f6df in QWidget::event (this=0x186e450, event=0x1ddf650) at kernel/qwidget.cpp:8646
#16 0x00007f283033b5e6 in QFrame::event (this=0x186e450, e=0x1ddf650) at widgets/qframe.cpp:557
#17 0x00007f28303c971b in QAbstractScrollArea::event (this=0x186e450, e=0x1ddf650) at widgets/qabstractscrollarea.cpp:996
#18 0x00007f28303b4815 in QTextEdit::event (this=0x186e450, e=0x1ddf650) at widgets/qtextedit.cpp:1070
#19 0x00007f281cb3b015 in Worksheet::event (this=0x186e450, event=0x1ddf650) at ../../../cantor/src/worksheet.cpp:148
#20 0x00007f282ff19fdc in QApplicationPrivate::notify_helper (this=0x1339af0, receiver=0x186e450, e=0x1ddf650) at kernel/qapplication.cpp:4396
#21 0x00007f282ff1faed in QApplication::notify (this=0x7fff0ba19c30, receiver=0x186e450, e=0x1ddf650) at kernel/qapplication.cpp:4277
#22 0x00007f2831a8b2f6 in KApplication::notify (this=0x7fff0ba19c30, receiver=0x186e450, event=0x1ddf650) at ../../kdeui/kernel/kapplication.cpp:311
#23 0x00007f282f536cdc in QCoreApplication::notifyInternal (this=0x7fff0ba19c30, receiver=0x186e450, event=0x1ddf650) at kernel/qcoreapplication.cpp:732
#24 0x00007f282f539c22 in sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x131d350) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x131d350) at kernel/qcoreapplication.cpp:1373
#26 0x00007f282f563653 in sendPostedEvents (s=0x133f2c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#27 postEventSourceDispatch (s=0x133f2c0) at kernel/qeventdispatcher_glib.cpp:277
#28 0x00007f282bad6342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#29 0x00007f282bada2a8 in ?? () from /lib/libglib-2.0.so.0
#30 0x00007f282bada45c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#31 0x00007f282f563193 in QEventDispatcherGlib::processEvents (this=0x131ce60, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#32 0x00007f282ffcca4e in QGuiEventDispatcherGlib::processEvents (this=0x7fff0ba18b70, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x00007f282f535a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#34 0x00007f282f535dec in QEventLoop::exec (this=0x7fff0ba19b80, flags=) at kernel/qeventloop.cpp:201
#35 0x00007f282f539ebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#36 0x000000000040a1b5 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../cantor/src/main.cpp:87

This bug may be a duplicate of or related to bug 258286.

Possible duplicates by query: bug 262049, bug 259868, bug 258286.

Reported using DrKonqi