bin/qbufferd.pl hardcodes the path /usr/bin/grep; on most Linux systems, grep is in /bin. This causes the check to see if qbufferd is already running to fail, and it will start another copy regardless. This happens every five minutes with the suggested cron entries in INSTALL.
I upgraded last night, and came back this morning to find my system completely hosed. :-( Too many open files. Blah.
Anyway, one-line patch to fix this is attached.
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