==19968== Process terminating with default action of signal 11 (SIGSEGV): dumping core
==19968== Access not within mapped region at address 0x20AF3123E
==19968== at 0x8D67CDE: mdb_page_split (mdb.c:5614)
==19968== by 0x8D63088: mdb_cursor_put (mdb.c:4151)
==19968== by 0x8D5DD15: mdb_txn_commit (mdb.c:1822)
==19968== by 0x8D473B3: mdb_modify (modify.c:627)
==19968== by 0x4CD3BC: overlay_op_walk (backover.c:671)
==19968== by 0x4CD5D3: over_op_func (backover.c:723)
==19968== by 0x4CD70F: over_op_modify (backover.c:762)
==19968== by 0x45AA45: fe_op_modify (modify.c:303)
==19968== by 0x45A317: do_modify (modify.c:177)
==19968== by 0x43A0F8: connection_operation (connection.c:1138)
==19968== by 0x43A699: connection_read_thread (connection.c:1274)
==19968== by 0x4C1D721: ldap_int_thread_pool_wrapper (tpool.c:685)