[syslog-ng]Syslog-ng unusual memory occupation

[G. C.]

Hi, I'm using syslog-ng (1.6.4) on a RedHat Linux AS 3.0 and I'm 
experiencing a heavy memory occupation.
Untill yesterday syslog-ng was using 1GB RAM, today I added 1 GB more and 
now it is using it too plus some swap (total 2.8 GB used. And it is 
growing...).

I use this server for collecting logs from several hundreds network devices. 
The traffic collected is around 1GB/day and I save it to a text log file 
which is created and rotated daily.

I cannot understand the reason, I tried to play with the garbage collection 
and fifo options but accomplished nothing.

Any experience of such a behavior?
Thanks in advance for your help,

Peter.

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