basho_bench test crashes

basho_bench out

WARN: No data for op: {get,get}

=ERROR REPORT==== 13-Mar-2012::10:10:49 ===
** Generic server <0.111.0> terminating 
** Last message in was {req_timeout,#Ref<0.0.7.28998>}
** When Server state == {state,{10,32,36,92},
                               8087,false,false,undefined,undefined,
                               {[],[]},
                               1,[],infinity,100}
** Reason for termination == 
** disconnected
DEBUG:Driver basho_bench_driver_riakc_pb crashed: {noproc,
                                                   {gen_server,call,
                                                    [<0.87.0>,
                                                     {req,
                                                      {rpbgetreq,<<"test">>,
                                                       <<150,225,104,53,211,
                                                         139,74,251,138,39,236,
                                                         152,93,0,91,221>>,
                                                       0,undefined,undefined,
                                                       undefined,undefined,
                                                       undefined,undefined},
                                                      60000},
                                                     infinity]}}
DEBUG:Driver basho_bench_driver_riakc_pb crashed: {noproc,
                                                   {gen_server,call,
                                                    [<0.111.0>,
                                                     {req,
                                                      {rpbgetreq,<<"test">>,
                                                       <<170,204,247,246,211,
                                                         10,70,17,188,231,156,
                                                         185,155,195,67,206>>,
                                                       0,undefined,undefined,
                                                       undefined,undefined,
                                                       undefined,undefined},
                                                      60000},
                                                     infinity]}}
DEBUG:Driver basho_bench_driver_riakc_pb crashed: {noproc,
                                                   {gen_server,call,
                                                    [<0.114.0>,
                                                     {req,
                                                      {rpbgetreq,<<"test">>,
                                                       <<152,189,6,210,25,160,
                                                         71,144,182,36,148,239,
                                                         204,110,63,164>>,
                                                       0,undefined,undefined,
                                                       undefined,undefined,
                                                       undefined,undefined},
                                                      60000},
                                                     infinity]}}

=ERROR REPORT==== 13-Mar-2012::10:10:49 ===
** Generic server <0.87.0> terminating 
** Last message in was {req_timeout,#Ref<0.0.7.29002>}
** When Server state == {state,{10,32,36,92},
                               8087,false,false,undefined,undefined,
                               {[],[]},
                               1,[],infinity,100}
** Reason for termination == 
** disconnected

=ERROR REPORT==== 13-Mar-2012::10:10:49 ===
** Generic server <0.114.0> terminating 
** Last message in was {req_timeout,#Ref<0.0.7.29006>}
** When Server state == {state,{10,32,36,92},
                               8087,false,false,undefined,undefined,
                               {[],[]},
                               1,[],infinity,100}
** Reason for termination == 
** disconnected

basho_bench.config

{mode, max}.

{duration, 30}.

{concurrent, 24}.

{driver, basho_bench_driver_riakc_pb}.

{key_generator, uuid_v4}.

{value_generator, {fixed_bin, 10000}}.

{riakc_pb_ips, [{10,32,36,92}]}.

{riakc_pb_replies, 0}.

{operations, [{get, 1}]}.