c20002| 2015-11-30T18:28:13.367-0500 I SHARDING [conn26] first cluster operation detected, adding sharding hook to enable versioning and authentication to remote servers
c20002| 2015-11-30T18:28:13.379-0500 F -        [conn26] Invalid access at address: 0x20
c20002| 2015-11-30T18:28:13.383-0500 F -        [conn26] Got signal: 11 (Segmentation fault: 11).
c20002| 
c20002|  0x1080854c9 0x10808500f 0x7fff8434d52a 0x10843024f 0x107f5e55c 0x10792ef5d 0x10798de82 0x10798d022 0x1078e3a16 0x107a8222d 0x1077885ea 0x108031253 0x108030a61 0x7fff8a7e19b1 0x7fff8a7e192e 0x7fff8a7df385
c20002|  mongod(_ZN5mongo15printStackTraceERNSt3__113basic_ostreamIcNS0_11char_traitsIcEEEE+0x39) [0x1080854c9]
c20002|  mongod(_ZN5mongo12_GLOBAL__N_124abruptQuitWithAddrSignalEiP9__siginfoPv+0x12F) [0x10808500f]
c20002|  libsystem_platform.dylib(_sigtramp+0x1A) [0x7fff8434d52a]
c20002|  mongod(_ZN2js3jit22CanEnterBaselineMethodEP9JSContextRNS_8RunStateE+0xAF) [0x10843024f]
c20002|  mongod(_ZN5mongo13ShardRegistry8getShardEPNS_16OperationContextERKNSt3__112basic_stringIcNS3_11char_traitsIcEENS3_9allocatorIcEEEE+0x2C) [0x107f5e55c]
c20002|  mongod(_ZN5mongo2mr22MapReduceFinishCommand3runEPNS_16OperationContextERKNSt3__112basic_stringIcNS4_11char_traitsIcEENS4_9allocatorIcEEEERNS_7BSONObjEiRSA_RNS_14BSONObjBuilderE+0x6AD) [0x10792ef5d]
c20002|  mongod(_ZN5mongo7Command3runEPNS_16OperationContextERKNS_3rpc16RequestInterfaceEPNS3_21ReplyBuilderInterfaceE+0x9D2) [0x10798de82]
c20002|  mongod(_ZN5mongo7Command11execCommandEPNS_16OperationContextEPS0_RKNS_3rpc16RequestInterfaceEPNS4_21ReplyBuilderInterfaceE+0xC62) [0x10798d022]
c20002|  mongod(_ZN5mongo11runCommandsEPNS_16OperationContextERKNS_3rpc16RequestInterfaceEPNS2_21ReplyBuilderInterfaceE+0x2A6) [0x1078e3a16]
c20002|  mongod(_ZN5mongo16assembleResponseEPNS_16OperationContextERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortE+0x17CD) [0x107a8222d]
c20002|  mongod(_ZN5mongo16MyMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortE+0xEA) [0x1077885ea]
c20002|  mongod(_ZN5mongo17PortMessageServer17handleIncomingMsgEPv+0x253) [0x108031253]
c20002|  mongod(_ZNSt3__114__thread_proxyINS_5tupleIJNS_6__bindIPFPvS3_EJPN5mongo12_GLOBAL__N_124MessagingPortWithHandlerEEEEEEEEES3_S3_+0x61) [0x108030a61]
c20002|  libsystem_pthread.dylib(_pthread_body+0x83) [0x7fff8a7e19b1]
c20002|  libsystem_pthread.dylib(_pthread_body+0x0) [0x7fff8a7e192e]
c20002|  libsystem_pthread.dylib(thread_start+0xD) [0x7fff8a7df385]