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sladp crash during stress test

I was performing some stress tests and the slapd server crashed. The only log information I can find as to why the server crashed is the following:

Mar 25 12:30:53 PAS209 kernel: slapd[29502] general protection rip:3004a71650 rsp:4136db70 error:0
Mar 26 01:09:24 PAS209 kernel: slapd[1514]: segfault at 0000000000000000 rip 00002aab11868901 rsp 0000000042f7ae68 error 6

I know this is not much to go on but I was hoping someone might be able to help explain why the server crashed. I am running Symas OpenLDAP on Red Hat Enterprise Linux 5.2 x86_64. I was running a test with a read-to-write ratio of 999-1. The test was using 10 clients with 30 threads per client. Two distinct users were being modified and all of the users were being searched randomly.