OID 11g Replication Server Crashes Intermittently Generating Core Dumps
(Doc ID 2072752.1)
Last updated on APRIL 07, 2021
Applies to:
Oracle Internet Directory - Version 11.1.1.5.0 to 11.1.1.7.3 [Release 11g]Information in this document applies to any platform.
Symptoms
OID 11g with LDAP Multimaster Replication configured
Replication Server crashes frequently generating core dump
A "gdb" output of the core file shows the following stack
..............
Core was generated by '<ORACLE_HOME>/bin/oidrepld -p <PORT#> -inst 1'.
Program terminated with signal 11, Segmentation fault.
#0 0x000000000047d8d6 in gslcgen_LdapNextEntry ()
(gdb) bt
#0 0x000000000047d8d6 in gslcgen_LdapNextEntry ()
#1 0x000000000046e61d in ora_ldap_next_entry ()
#2 0x000000000046e5ac in ldap_next_entry ()
#3 0x0000000000438a00 in gslracaApplyChanges ()
#4 0x00002b1375b9483d in start_thread () from /lib64/libpthread.so.0
#5 0x00002b137923118d in clone () from /lib64/libc.so.6
...............
Core was generated by '<ORACLE_HOME>/bin/oidrepld -p <PORT#> -inst 1'.
Program terminated with signal 11, Segmentation fault.
#0 0x000000000047d8d6 in gslcgen_LdapNextEntry ()
(gdb) bt
#0 0x000000000047d8d6 in gslcgen_LdapNextEntry ()
#1 0x000000000046e61d in ora_ldap_next_entry ()
#2 0x000000000046e5ac in ldap_next_entry ()
#3 0x0000000000438a00 in gslracaApplyChanges ()
#4 0x00002b1375b9483d in start_thread () from /lib64/libpthread.so.0
#5 0x00002b137923118d in clone () from /lib64/libc.so.6
...............
At OS level, /var/log/messages file shows the following :
kernel: oidrepld[xxxxx] general protection rip:47d8d6 rsp:2b56a35b38b0 error:0
kernel: oidrepld[xxxxx]: segfault at 0000000300000007 rip 000000000047d8d6 rsp 00002b12d06f48b0 error 4
kernel: oidrepld[xxxxx] general protection rip:47d8d6 rsp:2b137b4e78b0 error:0
kernel: oidrepld[xxxxx]: segfault at 0000000300000007 rip 000000000047d8d6 rsp 00002ad840af68b0 error 4
kernel: oidrepld[xxxxx] general protection rip:47d8d6 rsp:2b5d17b6d8b0 error:0
kernel: oidrepld[xxxxx] general protection rip:47d8d6 rsp:2b10c1d088b0 error:0
kernel: oidrepld[xxxxx]: segfault at 0000000300000007 rip 000000000047d8d6 rsp 00002b12d06f48b0 error 4
kernel: oidrepld[xxxxx] general protection rip:47d8d6 rsp:2b137b4e78b0 error:0
kernel: oidrepld[xxxxx]: segfault at 0000000300000007 rip 000000000047d8d6 rsp 00002ad840af68b0 error 4
kernel: oidrepld[xxxxx] general protection rip:47d8d6 rsp:2b5d17b6d8b0 error:0
kernel: oidrepld[xxxxx] general protection rip:47d8d6 rsp:2b10c1d088b0 error:0
From oidmon.log
Guardian: sgslupsCheckProcess: sigsend to pid <PID> failed, os error = 3
Guardian: Starting OIDREPLD cmdLine args = "-p <PORT#> -inst 1"
Guardian: Starting OIDREPLD Server,PID=<PID>
Guardian: Updating Process Table...
Guardian: sgslupsCheckProcess: sigsend to pid <PID> failed, os error = 3
Guardian: Starting OIDREPLD cmdLine args = "-p <PORT#> -inst 1"
Guardian: Starting OIDREPLD Server,PID=<PID>
Guardian: Updating Process Table...
Guardian: sgslupsCheckProcess: sigsend to pid <PID> failed, os error = 3
Guardian: Starting OIDREPLD cmdLine args = "-p <PORT#> -inst 1"
Guardian: Starting OIDREPLD Server,PID=<PID>
Guardian: Updating Process Table...
Guardian: sgslupsCheckProcess: sigsend to pid <PID> failed, os error = 3
Guardian: Starting OIDREPLD cmdLine args = "-p <PORT#> -inst 1"
Guardian: Starting OIDREPLD Server,PID=<PID>
Guardian: Updating Process Table...
Guardian: sgslupsCheckProcess: sigsend to pid <PID> failed, os error = 3
No specific error seen in oidrepld log, but following error may visible in the logs
sgslufread: Hard error on read, OS error = 32
sgslufread: Hard error on read, OS error = 32
sgslufread: Hard error on read, OS error = 32
Changes
Cause
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