Invalid SphinxSE table causes wrong error messages

create table a (id integer unsigned not null, weight integer not null, query varchar(4096) not null, string text, index(query)) engine=sphinx connection="sphinx://127.0.0.1:9312/test";

Error in query (1005): Can't create table `grabien`.`a` (errno: 1 "Operation not permitted")

create table aa (id integer unsigned not null, weight integer not null, query varchar(4096) not null, string text, index(query)) engine=sphinx connection="sphinx://127.0.0.1:9312/test";

Error in query (1005): Can't create table `grabien`.`aa` (errno: 2 "No such file or directory")

create table aaa (id integer unsigned not null, weight integer not null, query varchar(4096) not null, string text, index(query)) engine=sphinx connection="sphinx://127.0.0.1:9312/test";

Error in query (1005): Can't create table `grabien`.`aaa` (errno: 3 "No such process")

select * from information_schema.all_plugins where plugin_name like '%sphinx%'

PLUGIN_NAME - SPHINX

PLUGIN_VERSION - 2.2

PLUGIN_STATUS - ACTIVE

PLUGIN_TYPE - STORAGE ENGINE

PLUGIN_TYPE_VERSION - 100117.0

PLUGIN_LIBRARY - ha_sphinx.so

PLUGIN_LIBRARY_VERSION - 1.11

PLUGIN_AUTHOR - Sphinx developers

PLUGIN_DESCRIPTION - Sphinx storage engine 2.2.6-release

PLUGIN_LICENSE - GPL

LOAD_OPTION - ON 

PLUGIN_MATURITY - Gamma

PLUGIN_AUTH_VERSION - 2.2.6-release