HELP! Crash at: in my_strcasecmp_8bit () from /usr/lib/

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Hi, all,
my server crashed at odbc my_strcasecmp_8bit().
OS: redhat linux 9.0,
DB: MySQL-server-4.1.14-0.glibc23,MyODBC-3.51.11-2, unixODBC-2.2.3-6

I guessed it caused by odbc driver.
but how to fix it?

when the server crashed it output a coredump as follows:
Core was generated by `./config_server'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /worksite/ACE_wrappers/ace/

Loaded symbols for /worksite/ACE_wrappers/ace/
Reading symbols from /lib/

(gdb) bt full
#0 0x4050a943 in my_strcasecmp_8bit () from /usr/lib/
No symbol table info available.
Cannot access memory at address 0x45930c44
(gdb) q

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