https://bugs.openldap.org/show_bug.cgi?id=9265
--- Comment #1 from Greg ratness@gmail.com --- Retried on CentOS7 with 2.4.50 from ltb-project's RPMs:
Program received signal SIGABRT, Aborted. [Switching to Thread 0x7f8a56df4700 (LWP 2896)] 0x00007f8a99c4c2c7 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x00007f8a99c4c2c7 in raise () from /lib64/libc.so.6 #1 0x00007f8a99c4d9b8 in abort () from /lib64/libc.so.6 #2 0x00007f8a99c450e6 in __assert_fail_base () from /lib64/libc.so.6 #3 0x00007f8a99c45192 in __assert_fail () from /lib64/libc.so.6 #4 0x0000000000480739 in at_clean (a=a@entry=0x7f8a48107090) at at.c:277 #5 0x0000000000480785 in at_destroy_one (v=0x7f8a48106d40) at at.c:309 #6 0x0000000000425be6 in at_insert (rat=rat@entry=0x7f8a56dee2a8, prev=prev@entry=0x0, err=err@entry=0x7f8a56dee2f8) at at.c:494 #7 0x00000000004814b0 in at_add (at=at@entry=0x7f8a48107020, user=user@entry=1, rsat=rsat@entry=0x7f8a56dee360, prev=prev@entry=0x0, err=err@entry=0x7f8a56dee2f8) at at.c:935 #8 0x000000000047dd28 in parse_at (c=c@entry=0x7f8a56df15f0, sat=sat@entry=0x7f8a56dee360, prev=prev@entry=0x0) at schemaparse.c:316 #9 0x000000000043199a in config_generic (c=0x7f8a56df15f0) at bconfig.c:1707 #10 0x0000000000436703 in config_set_vals (Conf=0x886280 <config_back_cf_table+448>, c=0x7f8a56df15f0) at config.c:353 #11 0x0000000000437305 in config_parse_add (ct=ct@entry=0x886280 <config_back_cf_table+448>, c=c@entry=0x7f8a56df15f0, valx=<optimized out>) at config.c:697 #12 0x000000000042bd89 in config_modify_add (ct=ct@entry=0x886280 <config_back_cf_table+448>, ca=ca@entry=0x7f8a56df15f0, i=i@entry=0, ad=<optimized out>) at bconfig.c:5541 #13 0x000000000042cb7a in config_modify_internal (ca=0x7f8a56df15f0, rs=<optimized out>, op=<optimized out>, ce=<optimized out>) at bconfig.c:5798 #14 config_back_modify (op=<optimized out>, rs=<optimized out>) at bconfig.c:5943 #15 0x00000000004566c1 in fe_op_modify (op=0x7f8a48002690, rs=0x7f8a56df39a0) at modify.c:303 #16 0x00000000004583cb in do_modify (op=0x7f8a48002690, rs=0x7f8a56df39a0) at modify.c:177 #17 0x0000000000440b3e in connection_operation (ctx=ctx@entry=0x7f8a56df3ad0, arg_v=arg_v@entry=0x7f8a48002690) at connection.c:1175 #18 0x0000000000440e1a in connection_read_thread (ctx=0x7f8a56df3ad0, argv=0xd) at connection.c:1311 #19 0x00000000005921b9 in ldap_int_thread_pool_wrapper (xpool=0x180ef30) at tpool.c:696 #20 0x00007f8a9b140dd5 in start_thread () from /lib64/libpthread.so.0 #21 0x00007f8a99d1402d in clone () from /lib64/libc.so.6