Oracle 8.0.5 Threaded OCI RedHat 6.1 seg fault

Hi guys,

    I am having problem with threaded OCI calls, on heavy load, muti- threaded OCI program crashes soon after program start, but if I put a mutex to make all OCI call single threaded, everything works fine. does anybody have same experience???

    Here is the back trace of the core file.

(gdb) bt
#0 0x40130db4 in __libc_read () from /lib/libc.so.6
#1 0x4005ea7c in __DTOR_END__ () from /lib/libpthread.so.0
#2 0x4058b9f4 in slmsrd ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#3 0x4057c172 in lmsaprb ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#4 0x4057bab2 in lmsagb1 ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#5 0x4057b90f in lmsagbc ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#6 0x4057b8ee in lmsagbf ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#7 0x4055c06b in kpugeml ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#8 0x4038ebde in kpugemh ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#9 0x4038e7d6 in kpusebh ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#10 0x403c551d in kpuexec ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#11 0x403a3a80 in OCIStmtExecute ()

   from /home/oracle/u01/app/oracle/product/8.0.5/lib/libclntsh.so.1.0
#12 0x402b6fb9 in AgentQuery (pConn=0x828eb48) at oraengine.c:843
#13 0x402b6e08 in AgentThreadProc (pData=0x0) at oraengine.c:791
#14 0x40052eca in pthread_start_thread (arg=0xbf3ffe60) at manager.c:213

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