----- BEGIN BACKTRACE -----
{"backtrace":[{"b":"400000","o":"B3DC09"},{"b":"400000","o":"B3D572"},{"b":"400000","o":"B3D89E"},{"b":"2B6A9A965000","o":"ECA0"},{"b":"400000","o":"F419DE"},{"b":"400000","o":"F4EC72"},{"b":"400000","o":"F5E8B3"},{"b":"400000","o":"961BCF"},{"b":"400000","o":"95216E"},{"b":"400000","o":"952392"},{"b":"400000","o":"95EC13"},{"b":"400000","o":"95AF38"},{"b":"400000","o":"95AFB9"},{"b":"400000","o":"6E9591"},{"b":"400000","o":"96953A"},{"b":"400000","o":"ACD6C9"},{"b":"400000","o":"B8B214"},{"b":"2B6A9A965000","o":"683D"},{"b":"2B6A9B721000","o":"D4FCD"}],"processInfo":{ "mongodbVersion" : "2.8.0-rc1-pre-", "gitVersion" : "534263f1d83cdeb142c27f0ea5a1ecffc5b7526a", "uname" : { "sysname" : "Linux", "release" : "2.6.18-194.el5xen", "version" : "#1 SMP Tue Mar 16 22:01:26 EDT 2010", "machine" : "x86_64" }, "somap" : [ { "elfType" : 2, "b" : "400000" }, { "b" : "2B6A9A965000", "path" : "/lib64/libpthread.so.0", "elfType" : 3 }, { "b" : "2B6A9AB81000", "path" : "/lib64/librt.so.1", "elfType" : 3 }, { "b" : "2B6A9AD8A000", "path" : "/lib64/libdl.so.2", "elfType" : 3 }, { "b" : "2B6A9AF8F000", "path" : "/usr/lib64/libstdc++.so.6", "elfType" : 3 }, { "b" : "2B6A9B28F000", "path" : "/lib64/libm.so.6", "elfType" : 3 }, { "b" : "2B6A9B512000", "path" : "/lib64/libgcc_s.so.1", "elfType" : 3 }, { "b" : "2B6A9B721000", "path" : "/lib64/libc.so.6", "elfType" : 3 }, { "b" : "2B6A9A747000", "path" : "/lib64/ld-linux-x86-64.so.2", "elfType" : 3 } ] }}
 mongod(_ZN5mongo15printStackTraceERSo+0x29) [0xf3dc09]
 mongod(+0xB3D572) [0xf3d572]
 mongod(+0xB3D89E) [0xf3d89e]
 libpthread.so.0(+0xECA0) [0x2b6a9a973ca0]
 mongod(__wt_meta_track_off+0x24E) [0x13419de]
 mongod(__wt_schema_create+0x162) [0x134ec72]
 mongod(+0xF5E8B3) [0x135e8b3]
 mongod(_ZN5mongo20WiredTigerSizeStorer9storeIntoEPNS_17WiredTigerSessionERKSs+0x137F) [0xd61bcf]
 mongod(_ZNK5mongo18WiredTigerKVEngine12syncSizeInfoEb+0x6E) [0xd5216e]
 mongod(_ZNK5mongo18WiredTigerKVEngine15haveDropsQueuedEv+0x82) [0xd52392]
 mongod(_ZN5mongo22WiredTigerSessionCache14releaseSessionEPNS_17WiredTigerSessionE+0x3F3) [0xd5ec13]
 mongod(_ZN5mongo22WiredTigerRecoveryUnitD1Ev+0x38) [0xd5af38]
 mongod(_ZN5mongo22WiredTigerRecoveryUnitD0Ev+0x9) [0xd5afb9]
 mongod(_ZN5mongo20OperationContextImplD1Ev+0x41) [0xae9591]
 mongod(_ZN5mongo10TTLMonitor3runEv+0x35A) [0xd6953a]
 mongod(_ZN5mongo13BackgroundJob7jobBodyEv+0x119) [0xecd6c9]
 mongod(+0xB8B214) [0xf8b214]
 libpthread.so.0(+0x683D) [0x2b6a9a96b83d]
 libc.so.6(clone+0x6D) [0x2b6a9b7f5fcd]
-----  END BACKTRACE  -----