I'm running an ant (Java build tool) script on CentOS 5.5 that execs another java process. When I run the ant script in the background:
ant -f myfile.xml &> foo.out &
The forked process' state changes to stop and waits for input. As soon as I bring the process to the foreground it starts again (no input required on my part)
This does not occur on other machines running the same OS, CentOS 5.5.