Bug#286803: Kind of a memory leak in kernel 2.6?
I'm also seeing this, under 2.6.11 and again it's spamd as the major
culprit. Restarting spamd every few days seems to free up large amounts of
ram.
tombstone:/# free
total used free shared buffers cached
Mem: 514636 497168 17468 0 57520 54128
-/+ buffers/cache: 385520 129116
Swap: 781304 250976 530328
tombstone:/# /etc/init.d/spamassassin stop
Stopping SpamAssassin Mail Filter Daemon: spamd.
tombstone:/# /etc/init.d/spamassassin start
Starting SpamAssassin Mail Filter Daemon: spamd.
tombstone:/# free
total used free shared buffers cached
Mem: 514636 341100 173536 0 58556 56628
-/+ buffers/cache: 225916 288720
Swap: 781304 173024 608280
I've seen this free up over 300MB of swap.
--David
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