received block 00000000000002b0fa88 on the top line of your log is a real 206458:
http://blockexplorer.com/block/00000000000002b0fa887f1ef355d8b86dd75fc5d5bd93613584383765ab8f4fHowever, there was an error writing the blkindex.dat file; likely this file was corrupted, there is a disk CRC write error/bad block, or another Bitcoin is concurrently attempting to access it, etc. The error is unanticipated/unhandled by the code. In this case, rebuilding the index, or restoring/redownloading the blockchain is the remedy.
Corresponding code: main.cpp line 2051:
// Write block to history file
unsigned int nBlockSize = ::GetSerializeSize(*this, SER_DISK, CLIENT_VERSION);
if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK, CLIENT_VERSION)))
return error("AcceptBlock() : out of disk space");
CDiskBlockPos blockPos;
if (!FindBlockPos(blockPos, nBlockSize+8, nHeight, nTime))
return error("AcceptBlock() : FindBlockPos failed");
if (!WriteToDisk(blockPos))
return error("AcceptBlock() : WriteToDisk failed");
if (!AddToBlockIndex(blockPos))
return error("AcceptBlock() : AddToBlockIndex failed");
And the called
addtoblockindex() function that failed (line 1815):
bool CBlock::AddToBlockIndex(const CDiskBlockPos &pos)
{
// Check for duplicate
uint256 hash = GetHash();
if (mapBlockIndex.count(hash))
return error("AddToBlockIndex() : %s already exists", hash.ToString().substr(0,20).c_str());
// Construct new block index object
CBlockIndex* pindexNew = new CBlockIndex(*this);
if (!pindexNew)
return error("AddToBlockIndex() : new CBlockIndex failed");
map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;
pindexNew->phashBlock = &((*mi).first);
map<uint256, CBlockIndex*>::iterator miPrev = mapBlockIndex.find(hashPrevBlock);
if (miPrev != mapBlockIndex.end())
{
pindexNew->pprev = (*miPrev).second;
pindexNew->nHeight = pindexNew->pprev->nHeight + 1;
}
pindexNew->nTx = vtx.size();
pindexNew->bnChainWork = (pindexNew->pprev ? pindexNew->pprev->bnChainWork : 0) + pindexNew->GetBlockWork();
pindexNew->nChainTx = (pindexNew->pprev ? pindexNew->pprev->nChainTx : 0) + pindexNew->nTx;
pindexNew->nFile = pos.nFile;
pindexNew->nDataPos = pos.nPos;
pindexNew->nUndoPos = 0;
pindexNew->nStatus = BLOCK_VALID_TRANSACTIONS | BLOCK_HAVE_DATA;
setBlockIndexValid.insert(pindexNew);
pblocktree->WriteBlockIndex(CDiskBlockIndex(pindexNew));
// New best?
if (!ConnectBestBlock())
return false;
if (pindexNew == pindexBest)
{
// Notify UI to display prev block's coinbase if it was ours
static uint256 hashPrevBestCoinBase;
UpdatedTransaction(hashPrevBestCoinBase);
hashPrevBestCoinBase = GetTxHash(0);
}
pblocktree->Flush();
uiInterface.NotifyBlocksChanged();
return true;
}
