Comment 2 for bug 542062

Chuck: It's completely reproducible, you just need to run an awstats job:

a) on a busy website's logs
b) using logresolvemerge.pl to bring together the logs from multiple hosts, e.g. LogFile="/usr/share/doc/awstats/examples/logresolvemerge.pl /path/to/server1/access.log* /path/to/server2/access.log* |"

What seems to happen is that the gzip processes used to unpack the logs and feed into logresolvemerge.pl exit, but are not acknowledged while awstats.pl works, so they are technically zombies.