[Greylist-users] segmentation fault

[kamal]

On receiving the MAIL FROM command of the first mail after starting 
relaydelay.pl, I get a segmentation fault! The sample filter given with 
Sendmail::Milter is working. System is Mandrake 9.1 having perl 5.8.0 
with threads.

"bt" in "gdb" on core file gives:
------
#0  0x400a7e7a in Perl_ptr_table_fetch ()
   from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#1  0x400a78f2 in Perl_fp_dup ()
   from /usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE/libperl.so
#2  0x0819e1f8 in ?? ()
--------

Any idea why this may be happening?
Thanks.