Thomas Freitag authored Jan 07, 2012 and Carlos Garcia Campos committed Jan 07, 2012

In the way the scripts starts it subprocesses, stderr becomes buffered
for the subprocesses. And unforunately, when the buffer limit is
reached, the subprocess suspends it work until it can print again on
stderr. That's why the python script runs into a deadlock when the
subprocess produces a lot of error messages. A small rearrange of the
commands, first read the stderr output and then wait that the subprocess
ends, will remove this deadlock.