What were you trying to do that didn't work?

An online initialization is crashing the replica.

What is the impact of this issue to you?

LDAP server is crashing causing loss of service till it's started manually.

Please provide the package NVR for which the bug is seen:

cat <SOS_REPORT>/etc/redhat-release 
Red Hat Enterprise Linux release 9.6 (Plow)

grep 389-ds <SOS_REPORT>/installed-rpms 
389-ds-base-2.6.1-9.el9_6.x86_64                            Wed Jun 11 12:19:40 2025
389-ds-base-libs-2.6.1-9.el9_6.x86_64                       Wed Jun 11 12:19:40 2025
cockpit-389-ds-2.6.1-3.module+el9dsrv+23022+962c3fa5.noarch Wed Jun  4 16:18:00 2025

How reproducible is this bug?:

Often at a customer site.

Steps to reproduce

1. Trigger an online initialization.

Expected results

Working LDAP server.

Actual results

LDAP server is crashing.

The stacktrace is

(gdb) where
#0  process_entryrdn (wqelmnt=0x7fc91000b5a0, ep=0x7fc934027920) at ldap/servers/slapd/back-ldbm/db-mdb/mdb_import_threads.c:3046
#1  dbmdb_import_worker (param=<optimized out>) at ldap/servers/slapd/back-ldbm/db-mdb/mdb_import_threads.c:3338
#2  0x00007fce521f6c34 in _pt_root (arg=0x7fc92c005950) at pthreads/../../../../nspr/pr/src/pthreads/ptthread.c:201
#3  0x00007fce51a8a19a in start_thread (arg=<optimized out>) at pthread_create.c:443
#4  0x00007fce51b0f210 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
(gdb)