smtpserver 2.99.43b still dying with SEGV

[Eugene Crosser <crosser@online.ru>]

I hate to say it, but the problem of smtpserver eventually dying (once
every few days under heavy load) is still here.  This time, stack seems
be corrupt.  Again, it *might* be because of my modifications dealing
with on-the-fly charset translation, but might not.

=====
crosser@ariel:/src/zmailer/zmailer-2.99.43/$ gdb smtpserver/smtpserver ~/core
[...]
GDB 4.12 (sparc-sun-solaris2.3), 
Copyright 1994 Free Software Foundation, Inc...
Core was generated by `/usr/zmailer/bin/smtpserver -asve -8X -l
/var/log/zmailer/smtpserver'.
Program terminated with signal 11, Segmentation fault.
procfs (find_procinfo):  Couldn't locate pid 0
#0  0xef6cef9c in s_buffer ()
(gdb) bt
#0  0xef6cef9c in s_buffer ()
(gdb) 
=====

Any ideas?

Eugene