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Subject: [Bitcoin-development] Newly introduced DoS
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+        return DoS(10, error("AcceptToMemoryPool() : transaction with out-of-
bounds SigOpCount"));
+                        return DoS(10, error("ConnectInputs() : tried to 
spend coinbase at depth %d", pindexBlock->nHeight - pindex->nHeight));
+        return DoS(10, error("AcceptBlock() : prev block not found"));

These shouldn't be "DoS"'d, or else you open a new DoS when nodes legitimately 
relay such transactions/blocks.