Some stats processes crash periodically

[vinzenz]

Hi,

every once in a while some stats processes on my Zimbra installation crash.
Which ones and when seems to be completely random, sometimes they run for days with no problem.

zmstat.out says

no connection to syslog available
	- /dev/log is not a socket at /opt/zimbra/zimbramon/lib/Zimbra/Mon/Logger.pm line 74

I restart stats with "zmstatctl restart" it works fine again until the next one stops and so on.
Zimbra version is "Release 6.0.8_GA_2661.DEBIAN5_64 DEBIAN5_64 FOSS edition".
Any thoughts?

Thanks for your help!