I think it is known. But there seem to be more problems in the debugger when stepping. So not easy to find the exact culprit
Norbert > Am 04.12.2016 um 14:34 schrieb Holger Freyther <hol...@freyther.de>: > > Hi, > > before I try to reproduce this exactly I wondered if the following is a known > issue with Pharo5. If I am in the debugger and try to step over a message > send and that would generate a DNU, Pharo starts taking 99% cpu time. If I > use CMD+./CTRL+. to interrupt it doesn't really work either. I get it to > repaint the screen once and see a lot of message boxes with errors but the > system remains unresponsive. > > Is that known? > > holger > > >