Bug 175513

It would be helpful if you could isolate the message that causes that error,
save it into its own mbox file, and attach that mbox file.  We need the complete
message including headers and everything intact.

This looks like upstream bug
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4046
which is fixed in the svn trunk, but not the 3.0 branch.

Hmm, would that patch apply in 3.0.5?  I personally see this error often in my
3.0.5 testing.

The comments in that bug are confusing. No patches that are in that bug were
applied. The bug was closed because other changes in trunk made the warning go
away. and Justin determined that the problem was only cosmetic. The warnings did
not affect rule hits.

The relevant code in the trunk version of HTML.pm looks like this:

 # Ignore stupid warning that can't be suppressed: 'Parsing of
 # undecoded UTF-8 will give garbage when decoding entities at ..' (bug 4046)
 {
   local $SIG{__WARN__} = sub {
     warn @_ unless (defined $_[0] && $_[0] =~ /^Parsing of undecoded UTF-/);
   };

   $self->SUPER::parse($text);
 }

In 3.0 there is a call to

  $hp->parse(pack ('C0A*', $text));

at or near line 182, instead of a call to $self->SUPER::parse($text);
and that's what you would wrap the block around.

Created attachment 122138 [details]
mail that causes the bug

$ sa-learn --spam sa-learn-bug-mail 
Parsing of undecoded UTF-8 will give garbage when decoding entities at
/usr/lib/perl5/vendor_perl/5.8.6/Mail/SpamAssassin/HTML.pm line 182.
Learned from 0 message(s) (1 message(s) examined).

Seems like all relevant information has been provided.

This report targets the FC3 or FC4 products, which have now been EOL'd.

Could you please check that it still applies to a current Fedora release, and
either update the target product or close it ?

Thanks.