There were 4 stuck build processes that all appear to be related to testing Universes, I think. Here is an example:
jenkins 27839 0.0 0.0 1748 492 ? S Mar30 0:00 sh -c nice /var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/bin/squeak -vm-sound-null -vm-display-null "/var/lib/jenkins/workspace/SqueakTrunk/target/Universes.image" ../package-load-tests/Universes.st jenkins 27841 2.2 2.3 1054528 24096 ? RN Mar30 60:37 /var/lib/jenkins/workspace/SqueakTrunk/target/cog.r2701/coglinux/bin/../lib/squeak/4.0-2701/squeak -vm-sound-null -vm-display-null /var/lib/jenkins/workspace/SqueakTrunk/target/Universes.image ../package-load-tests/Universes.st
I killed them.
Ken