(gdb) bt
#0 0x2837f537 in pthread_testcancel () from /lib/libpthread.so.2
#1 0x2836e89a in sigaction () from /lib/libpthread.so.2
#2 0x2836888d in pthread_kill () from /lib/libpthread.so.2
#3 0x28368256 in raise () from /lib/libpthread.so.2
#4 0x28442e34 in abort () from /lib/libc.so.6
#5 0x2841f060 in __assert () from /lib/libc.so.6
#6 0x080aad9e in entry_schema_check ()
#7 0x286908a3 in bdb_add (op=0xcecfa0c0, rs=0xcecfa080) at add.c:63
#8 0x080ec0b5 in overlay_init ()
#9 0x080db272 in glue_sub_init ()
#10 0x08080a75 in slap_req2res ()
#11 0x080818ac in slap_send_ldap_result ()
#12 0x08113e35 in translucent_initialize ()
#13 0x080db309 in overlay_op_walk ()
#14 0x080db543 in overlay_op_walk ()
#15 0x080db650 in overlay_op_walk ()
#16 0x0808b0c6 in fe_op_modify ()
#17 0x0808a33e in do_modify ()
#18 0x0806fb84 in connection_done ()
#19 0x281b36ad in ldap_int_thread_pool_wrapper ()
from /usr/local/lib/libldap_r-2.3.so.2
#20 0x283703a5 in pthread_create () from /lib/libpthread.so.2
#21 0x2842e3df in _ctx_start () from /lib/libc.so.6