log stack trace on consensus failure

blockchain/reactor.go

@@ -235,7 +235,7 @@ FOR_LOOP:
 				err := bcR.state.Validators.VerifyCommit(
 					bcR.state.ChainID, types.BlockID{first.Hash(), firstPartsHeader}, first.Height, second.LastCommit)
 				if err != nil {
-					bcR.Logger.Info("error in validation", "err", err)
+					bcR.Logger.Error("Error in validation", "err", err)
 					bcR.pool.RedoRequest(first.Height)
 					break SYNC_LOOP
 				} else {

consensus/state.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"path/filepath"
 	"reflect"
+	"runtime/debug"
 	"sync"
 	"time"
 
@@ -609,7 +610,7 @@ func (cs *ConsensusState) newStep() {
 func (cs *ConsensusState) receiveRoutine(maxSteps int) {
 	defer func() {
 		if r := recover(); r != nil {
-			cs.Logger.Error("CONSENSUS FAILURE!!!", "err", r)
+			cs.Logger.Error("CONSENSUS FAILURE!!!", "err", r, "stack", string(debug.Stack()))
 		}
 	}()