2015-06-25T09:14:38.537+0800 [rsSync] replSet initial sync data copy, starting syncup
2015-06-25T09:14:38.537+0800 [rsSync] local.oplog.rs Assertion failure a() != -1 src/mongo/db/storage/record.cpp 538
2015-06-25T09:14:38.544+0800 [rsSync] local.oplog.rs 0xffec79 0xfa7ea5 0xf90bd6 0xdb557d 0xddafc7 0xde045f 0xde04d8 0xde99d2 0xde95be 0x8dfaa4 0x8e037d 0xd3b8d5 0xd6b02f 0xd6b818 0xd82669 0xd827a2 0xd8365e 0x103d50b 0x2b8ae17e0806 0x2b8ae2a6a66d
 mongod(_ZN5mongo15printStackTraceERSo+0x29) [0xffec79]
 mongod(_ZN5mongo10logContextEPKc+0x1f5) [0xfa7ea5]
 mongod(_ZN5mongo12verifyFailedEPKcS1_j+0x136) [0xf90bd6]
 mongod(_ZNK5mongo7DiskLoc3extEv+0x5d) [0xdb557d]
 mongod(_ZN5mongo16NamespaceDetails11cappedAllocEPNS_10CollectionERKNS_10StringDataEi+0x37) [0xddafc7]
 mongod(_ZN5mongo16NamespaceDetails6_allocEPNS_10CollectionERKNS_10StringDataEi+0x1f) [0xde045f]
 mongod(_ZN5mongo16NamespaceDetails5allocEPNS_10CollectionERKNS_10StringDataEi+0x58) [0xde04d8]
 mongod(_ZN5mongo19CappedRecordStoreV111allocRecordEii+0x32) [0xde99d2]
 mongod(_ZN5mongo17RecordStoreV1Base12insertRecordEPKcii+0x5e) [0xde95be]
 mongod(_ZN5mongo10Collection15_insertDocumentERKNS_7BSONObjEbPKNS_16PregeneratedKeysE+0x84) [0x8dfaa4]
 mongod(_ZN5mongo10Collection14insertDocumentERKNS_7BSONObjEbPKNS_16PregeneratedKeysE+0x1ad) [0x8e037d]
 mongod(_ZN5mongo11_logOpObjRSERKNS_7BSONObjE+0x435) [0xd3b8d5]
 mongod(_ZN5mongo11ReplSetImpl12_initialSyncEv+0x6bf) [0xd6b02f]
 mongod(_ZN5mongo11ReplSetImpl17syncDoInitialSyncEv+0x68) [0xd6b818]
 mongod(_ZN5mongo11ReplSetImpl11_syncThreadEv+0xc9) [0xd82669]
 mongod(_ZN5mongo11ReplSetImpl10syncThreadEv+0x92) [0xd827a2]
 mongod(_ZN5mongo15startSyncThreadEv+0x9e) [0xd8365e]
 mongod() [0x103d50b]
 /lib64/libpthread.so.0(+0x7806) [0x2b8ae17e0806]
 /lib64/libc.so.6(clone+0x6d) [0x2b8ae2a6a66d]
2015-06-25T09:14:38.544+0800 [rsSync] replSet initial sync exception: 0 assertion src/mongo/db/storage/record.cpp:538 4 attempts remaining