Mantid crashes if running script with progress tracking window open

[Russell Taylor]

Running the attached script with the 'Details' window open crashes Mantid every time (but not always in the same place).

[Nick Draper]

stack trace from gdb attached. Different script, same problem.

(gdb) backtrace #0 0x0000000000b8cda0 in QVectorData::shared_null () #1 0x000000000075ff8c in MonitorDlg::updateProgress () #2 0x0000000000824feb in MonitorDlg::qt_metacall () #3 0x00007f513aceb848 in QObject::event () from /usr/lib/libQtCore.so.4 #4 0x00007f513b51e0fd in QWidget::event () from /usr/lib/libQtGui.so.4 #5 0x00007f513b4cd78d in QApplicationPrivate::notify_helper ()

from /usr/lib/libQtGui.so.4

#6 0x00007f513b4d597a in QApplication::notify () from /usr/lib/libQtGui.so.4 #7 0x000000000071ecdd in MantidApplication::notify () #8 0x00007f513acdb75c in QCoreApplication::notifyInternal ()

from /usr/lib/libQtCore.so.4

#9 0x00007f513acdc3ca in QCoreApplicationPrivate::sendPostedEvents ()

from /usr/lib/libQtCore.so.4

#10 0x00007f513ad051e3 in ?? () from /usr/lib/libQtCore.so.4 #11 0x00007f513825620a in g_main_context_dispatch ()

from /usr/lib/libglib-2.0.so.0

#12 0x00007f51382598e0 in ?? () from /usr/lib/libglib-2.0.so.0 #13 0x00007f5138259a7c in g_main_context_iteration ()

from /usr/lib/libglib-2.0.so.0

#14 0x00007f513ad04e6f in QEventDispatcherGlib::processEvents ()

from /usr/lib/libQtCore.so.4

#15 0x00007f513b565bef in ?? () from /usr/lib/libQtGui.so.4 #16 0x00007f513acdc819 in QCoreApplication::processEvents () ---Type <return> to continue, or q <return> to quit---

[Russell Taylor]

(In [2901]) Fix for crash when viewing algorithm details window when running python script. Re #773.

[Stuart Campbell]

This ticket has been transferred to github issue ​1621