diff --git a/event/event.go b/event/event.go
index 6a4608f..94c4582 100644
--- a/event/event.go
+++ b/event/event.go
@@ -1,6 +1,7 @@
 package event
 
 import (
+	"fmt"
 	"github.com/duanhf2012/origin/log"
 	"runtime"
 	"sync"
@@ -214,7 +215,8 @@ func (processor *EventProcessor) EventHandler(ev IEvent) {
 		if r := recover(); r != nil {
 			buf := make([]byte, 4096)
 			l := runtime.Stack(buf, false)
-			log.SError("core dump info:",r,":",string(buf[:l]))
+			errString := fmt.Sprint(r)
+			log.SError("core dump info[",errString,"]\n",string(buf[:l]))
 		}
 	}()
 
diff --git a/rpc/client.go b/rpc/client.go
index 967b978..bffbe23 100644
--- a/rpc/client.go
+++ b/rpc/client.go
@@ -3,6 +3,7 @@ package rpc
 import (
 	"container/list"
 	"errors"
+	"fmt"
 	"github.com/duanhf2012/origin/log"
 	"github.com/duanhf2012/origin/network"
 	"github.com/duanhf2012/origin/util/timer"
@@ -261,7 +262,8 @@ func (client *Client) Run(){
 		if r := recover(); r != nil {
 			buf := make([]byte, 4096)
 			l := runtime.Stack(buf, false)
-			log.SError("core dump info:",r,":", string(buf[:l]))
+			errString := fmt.Sprint(r)
+			log.SError("core dump info[",errString,"]\n", string(buf[:l]))
 		}
 	}()
 
diff --git a/rpc/rpchandler.go b/rpc/rpchandler.go
index 6fbf66b..444920a 100644
--- a/rpc/rpchandler.go
+++ b/rpc/rpchandler.go
@@ -194,7 +194,8 @@ func (handler *RpcHandler) HandlerRpcResponseCB(call *Call){
 		if r := recover(); r != nil {
 			buf := make([]byte, 4096)
 			l := runtime.Stack(buf, false)
-			log.SError("core dump info:",r,":",string(buf[:l]))
+			errString := fmt.Sprint(r)
+			log.SError("core dump info[",errString,"]\n",string(buf[:l]))
 		}
 	}()
 
@@ -215,7 +216,8 @@ func (handler *RpcHandler) HandlerRpcRequest(request *RpcRequest) {
 		if r := recover(); r != nil {
 				buf := make([]byte, 4096)
 				l := runtime.Stack(buf, false)
-				log.SError("Handler Rpc ",request.RpcRequestData.GetServiceMethod()," Core dump info:",r,":",string(buf[:l]))
+				errString := fmt.Sprint(r)
+				log.SError("Handler Rpc ",request.RpcRequestData.GetServiceMethod()," Core dump info[",errString,"]\n",string(buf[:l]))
 				rpcErr := RpcError("call error : core dumps")
 				if request.requestHandle!=nil {
 					request.requestHandle(nil,rpcErr)
diff --git a/service/service.go b/service/service.go
index f0b6b8e..c907585 100644
--- a/service/service.go
+++ b/service/service.go
@@ -2,6 +2,7 @@ package service
 
 import (
 	"errors"
+	"fmt"
 	"github.com/duanhf2012/origin/event"
 	"github.com/duanhf2012/origin/log"
 	"github.com/duanhf2012/origin/profiler"
@@ -213,7 +214,8 @@ func (s *Service) Release(){
 		if r := recover(); r != nil {
 			buf := make([]byte, 4096)
 			l := runtime.Stack(buf, false)
-			log.SError("core dump info:",r," : ",string(buf[:l]))
+			errString := fmt.Sprint(r)
+			log.SError("core dump info[",errString,"]\n",string(buf[:l]))
 		}
 	}()
 	s.self.OnRelease()
diff --git a/util/timer/timer.go b/util/timer/timer.go
index a53fc3d..87a9612 100644
--- a/util/timer/timer.go
+++ b/util/timer/timer.go
@@ -94,8 +94,8 @@ func (t *Timer) Do(){
 			if r := recover(); r != nil {
 				buf := make([]byte, 4096)
 				l := runtime.Stack(buf, false)
-				err := fmt.Errorf("%v: %s", r, buf[:l])
-				log.SError("core dump info:", err.Error())
+				errString := fmt.Sprint(r)
+				log.SError("core dump info[",errString,"]\n",string(buf[:l]))
 			}
 		}()
 		t.cb()