[Mimedefang] Memory Issues adding SpamAssassin Rules

[David Nelson]

I've had a problem since adding rulesets to SpamAssassin.  I've started
to get these errors in my logs (some of the numbers vary):

Apr 11 00:21:26 gloop mimedefang-multiplexor[24463]: Slave 15 stderr:
Out of memory during request for 1028 bytes, total sbrk() is 98183168
bytes!
Apr 11 00:21:54 gloop mimedefang-multiplexor[24463]: Slave 12 stderr:
Out of memory during "large" request for 135168 bytes, total sbrk() is
98207744 bytes at
/usr/local/lib/perl5/site_perl/5.8.6/Mail/SpamAssassin/PerMsgStatus.pm
line 2222.
Failed to compile body SpamAssassin tests, skipping:     (Out of memory
during "large" request for 69632 bytes, total sbrk() is 98230272 bytes
at (no file), rule VIRUS_WARNING235, line 822. )

top(1) says I have anywhere from as low as 200MB to as high as 400MB+ of
RAM available, so I'm really confused as to where the problem is.  I use
rulesets via RDJ, so unless the author really dorked something up (which
I believe unlikely), then I'm reduced to removing rules?  Does sbrk(2)
require contiguous memory and I'm dealing with a memory fragmentation
issue?  Did I go overboard with the rulesets SA is using?  Am I being
stupid?   :)

TRUSTED_RULESETS="TRIPWIRE ANTIDRUG RANDOMVAL BOGUSVIRUS
SARE_EVILNUMBERS0 SARE_EVILNUMBERS1 SARE_EVILNUMBERS2
SARE_REDIRECT_POST300 SARE_BAYES_POISON_NXM SARE_HTML SARE_HEADER
SARE_SPECIFIC SARE_ADULT SARE_BML SARE_FRAUD SARE_SPOOF SARE_RANDOM
SARE_SPAMCOP_TOP200 SARE_OEM SARE_GENLSUBJ SARE_HIGHRISK SARE_UNSUB
SARE_URI0 SARE_URI1 SARE_URI_ENG SARE_OBFU0 SARE_OBFU1 SARE_OBFU2
SARE_STOCKS FVGT_meta FVGT_body FVGT_headers FVGT_rawbody FVGT_subject
FVGT_uri"

Thanks!
-- Dave