crashed during installing packages on upgrade vom hardy to intrepid beta (after about half of the packages had been upgraded)
Binary package hint: update-manager
about halfway through installing all the updates on an update from hardy to intrepid beta, after a long period without user interaction, problems began.
first, error dialogs were displayed for about 5 different packages with similar messages, approximately like "post-installation script for packages xyz failed with error 139"
then, suddenly, the update manager vanished