Warnings in mail.log: "no meta_dependencies defined", "Use of uninitialized value in split", "Use of uninitialized value in concatenation"

[Matt Doran]

Hi guys,

I was recently doing some reconfigurating/optimization of our 
SpamAssassin setup.   And I've started seeing the following entries in 
the mail.log.   They don't appear for every mail processed, but it does 
happen multiple times a day.

I'm running Debian stable, SpamAssassin 3.2.5 in daemon mode, and using 
sa-update to keep the rules up-to-date.   I enable the shortcircuiting 
plugin to implement some of these optimizations, and I'm wondering 
whether this is what introduced these problems.


There seems to be 2 classes of warning.  The first is this:

   no meta_dependencies defined for SUBJ_RE_NUM at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 414.
   Use of uninitialized value in split at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 417.

These 2 lines are repeated over and over for about 280 different rules.


Then next warning is about an "uninitialized value in concatenation".   
The warning can look a bit different but it's always at the same line.  
Here's some examples:

   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028.
   last message repeated 1088 times

and

   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028,
   <$tmpfile> line 2290.
   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028.
   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028,
   <$tmpfile> line 2290.
   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028.
   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028,
   <$tmpfile> line 2290.

and

   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028,
   <GEN41> line 1294.
   last message repeated 682 times
   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028.
   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028,
   <GEN41> line 1294.
   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028,
   <GEN41> line 1294.
   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028.
   Use of uninitialized value in concatenation (.) or string at
   /usr/share/perl5/Mail/SpamAssassin/Plugin/Check.pm line 1028,
   <GEN41> line 1294.



I didn't see these warnings before my changes.   Any ideas on the cause 
of these and how to resolve them?

Regards,

--
Matt Doran
PaperCut Software International Pty. Ltd.
http://www.papercut.com/

Phone:   +61 3 9809 5194