Issue during startup:

• • • • • SERVER RESTARTED *****
          note: noprealloc may hurt performance in many applications
          Tue Jul 9 07:10:33 [initandlisten] MongoDB starting : pid=29832 port=27017 dbpath=/data/sessions.1 64-bit host=lab
          Tue Jul 9 07:10:33 [initandlisten] db version v2.2.0, pdfile version 4.5
          Tue Jul 9 07:10:33 [initandlisten] git version: f5e83eae9cfbec7fb7a071321928f00d1b0c5207
          Tue Jul 9 07:10:33 [initandlisten] build info: Linux ip-10-2-29-40 2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64 BOOST_LIB_VERSION=1_49
          Tue Jul 9 07:10:33 [initandlisten] options: { auth: true, dbpath: "/data/sessions.1", fork: true, logappend: true, logpath: "/var/log/mongodb-27017.log", nojournal: true, noprealloc: true, port: 27017, quiet: true }

          Tue Jul 9 07:10:33 Invalid access at address: 0x2aab13aaf000 from thread: initandlisten

Tue Jul 9 07:10:33 Got signal: 11 (Segmentation fault).

Tue Jul 9 07:10:33 Backtrace:
0xade6e1 0x5582d9 0x558862 0x373c40ebe0 0x73b13f 0x73e5bd 0x877617 0x846f85 0x84b268 0x84b41b 0x6b046c 0x6b3d38 0xb5ba7d 0xb5d052 0xb5e963 0x6f698d 0xa90c3a 0xb506b6 0x55a4cd 0x55c6c8
/usr/bin/mongod(_ZN5mongo15printStackTraceERSo+0x21) [0xade6e1]
/usr/bin/mongod(_ZN5mongo10abruptQuitEi+0x399) [0x5582d9]
/usr/bin/mongod(_ZN5mongo24abruptQuitWithAddrSignalEiP7siginfoPv+0x262) [0x558862]
/lib64/libpthread.so.0 [0x373c40ebe0]
/usr/bin/mongod(_ZN5mongo11DataFileMgr7findAllEPKcRKNS_7DiskLocE+0x9f) [0x73b13f]
/usr/bin/mongod(_ZN5mongo13findTableScanEPKcRKNS_7BSONObjERKNS_7DiskLocE+0xdd) [0x73e5bd]
/usr/bin/mongod(_ZNK5mongo9QueryPlan9newCursorERKNS_7DiskLocE+0x247) [0x877617]
/usr/bin/mongod(_ZN5mongo15CursorGenerator16singlePlanCursorEv+0x1b5) [0x846f85]
/usr/bin/mongod(_ZN5mongo15CursorGenerator8generateEv+0xa8) [0x84b268]
/usr/bin/mongod(_ZN5mongo25NamespaceDetailsTransient9getCursorEPKcRKNS_7BSONObjES5_RKNS_24QueryPlanSelectionPolicyEPbRKN5boost10shared_ptrIKNS_11ParsedQueryEEEbPNS_16QueryPlanSummaryE+0x4b) [0x84b41b]
/usr/bin/mongod(_ZN5mongo23queryWithQueryOptimizerEiRKSsRKNS_7BSONObjERNS_5CurOpES4_S4_RKN5boost10shared_ptrINS_11ParsedQueryEEES4_RKNS_17ShardChunkVersionERNS7_10scoped_ptrINS_25PageFaultRetryableSectionEEERNSG_INS_19NoPageFaultsAllowedEEERNS_7MessageE+0xfc) [0x6b046c]
/usr/bin/mongod(ZN5mongo8runQueryERNS_7MessageERNS_12QueryMessageERNS_5CurOpES1+0x16b8) [0x6b3d38]
/usr/bin/mongod [0xb5ba7d]
/usr/bin/mongod(_ZN5mongo16assembleResponseERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortE+0x3a2) [0xb5d052]
/usr/bin/mongod(_ZN5mongo14DBDirectClient4callERNS_7MessageES2_bPSs+0x93) [0xb5e963]
/usr/bin/mongod(_ZN5mongo14DBClientCursor4initEv+0xbd) [0x6f698d]
/usr/bin/mongod(_ZN5mongo12DBClientBase5queryERKSsNS_5QueryEiiPKNS_7BSONObjEii+0xea) [0xa90c3a]
/usr/bin/mongod(_ZN5mongo14DBDirectClient5queryERKSsNS_5QueryEiiPKNS_7BSONObjEii+0x56) [0xb506b6]
/usr/bin/mongod(_ZN5mongo19clearTmpCollectionsEv+0x23d) [0x55a4cd]
/usr/bin/mongod(_ZN5mongo14_initAndListenEi+0x458) [0x55c6c8]