diff --git a/consensus/XDPoS/engines/engine_v2/mining.go b/consensus/XDPoS/engines/engine_v2/mining.go
index 22a57653b4..f58eda075a 100644
--- a/consensus/XDPoS/engines/engine_v2/mining.go
+++ b/consensus/XDPoS/engines/engine_v2/mining.go
@@ -53,10 +53,10 @@ func (x *XDPoS_v2) yourturn(chain consensus.ChainReader, round types.Round, pare
 	leaderIndex := uint64(round) % x.config.Epoch % uint64(len(masterNodes))
 	x.whosTurn = masterNodes[leaderIndex]
 	if x.whosTurn != signer {
-		log.Info("[yourturn] Not my turn", "curIndex", curIndex, "leaderIndex", leaderIndex, "Hash", parent.Hash().Hex(), "whosTurn", x.whosTurn.Hex(), "myaddr", signer.Hex())
+		log.Info("[yourturn] Not my turn", "round", round, "curIndex", curIndex, "leaderIndex", leaderIndex, "Hash", parent.Hash().Hex(), "whosTurn", x.whosTurn, "myaddr", signer)
 		return false, nil
 	}
 
-	log.Info("[yourturn] Yes, it's my turn based on parent block", "ParentHash", parent.Hash().Hex(), "ParentBlockNumber", parent.Number.Uint64())
+	log.Info("[yourturn] Yes, it's my turn based on parent block", "round", round, "ParentHash", parent.Hash().Hex(), "ParentBlockNumber", parent.Number.Uint64())
 	return true, nil
 }
diff --git a/consensus/XDPoS/engines/engine_v2/utils.go b/consensus/XDPoS/engines/engine_v2/utils.go
index 74a557b670..1b4119d29d 100644
--- a/consensus/XDPoS/engines/engine_v2/utils.go
+++ b/consensus/XDPoS/engines/engine_v2/utils.go
@@ -320,10 +320,10 @@ func (x *XDPoS_v2) GetBlockByEpochNumber(chain consensus.ChainReader, targetEpoc
 		return epochSwitchInfo.EpochSwitchBlockInfo, nil
 	}
 	if targetEpochNum > epochNum {
-		return nil, errors.New("input epoch number > current epoch number")
+		return nil, fmt.Errorf("input epoch number > current epoch number, targetEpochNum:%d, epochNum:%d", targetEpochNum, epochNum)
 	}
 	if targetEpochNum < x.config.V2.SwitchEpoch {
-		return nil, errors.New("input epoch number < v2 begin epoch number")
+		return nil, fmt.Errorf("input epoch number < v2 begin epoch number, targetEpochNum:%d, x.config.V2.SwitchEpoch:%d", targetEpochNum, x.config.V2.SwitchEpoch)
 	}
 	// the block's round should be in [estRound,estRound+Epoch-1]
 	estRound := types.Round((targetEpochNum - x.config.V2.SwitchEpoch) * x.config.Epoch)
diff --git a/consensus/XDPoS/utils/pool.go b/consensus/XDPoS/utils/pool.go
index 57f6b93a0f..1d65fae6f2 100644
--- a/consensus/XDPoS/utils/pool.go
+++ b/consensus/XDPoS/utils/pool.go
@@ -4,6 +4,7 @@ import (
 	"sync"
 
 	"github.com/XinFinOrg/XDPoSChain/common"
+	"github.com/XinFinOrg/XDPoSChain/log"
 )
 
 type PoolObj interface {
@@ -39,6 +40,18 @@ func (p *Pool) Get() map[string]map[common.Hash]PoolObj {
 	return dataCopy
 }
 
+func (p *Pool) Inspect() {
+	p.lock.RLock()
+	defer p.lock.RUnlock()
+
+	for poolKey, objMap := range p.objList {
+		log.Info("[Inspect] Pool Key:", "poolKey", poolKey, "numObjects", len(objMap))
+		for objHash, obj := range objMap {
+			log.Info("[Inspect]   Object Hash:", "objHash", objHash.Hex(), "signer", obj.GetSigner())
+		}
+	}
+}
+
 // Add adds the object to the pool, returns the number of items
 // and the map of objects under the same pool key
 func (p *Pool) Add(obj PoolObj) (int, map[common.Hash]PoolObj) {