Adin Scannell added the comment:
Kernel is 3.0.0-15-generic (I believe stock Ubuntu Oneric kernel).
Version for glibc is Ubuntu EGLIBC 2.13-20ubuntu5.
I'm working on figuring out the exact conditions under which it happens and
creating a harness. I'll post it when I
New submission from Adin Scannell :
While running a complex python process that executes a bunch of subprocesses
(using the subprocess module, specifically calling communicate()), I found
myself with occasional zombie processes piling up. Turns out Python is not
correctly wait()ing for the
