asterisk users - Feb 2007 - libunicall + hashtable.c + asterisk crash

I?m having some problems with mfcr2. Asterisk crash with exit code 137
signal 11. Here is what i can get from core dumped:

----
Loaded symbols for /lib/libgcc_s.so.1
#0  OneWordFind (tablePtr=0x32333134, key=0x80e6 <Address 0x80e6 out
of bounds>) at hashtable.c:586

586             if (hPtr->key.oneWordValue == key)
----

hashtable.c is a libunicall file. Asterisk goes down many times a day
and the problem gets worst when many "Dial" commands are requesteds.

Any help will be great!!

Andre Dias