diff --git a/store/tikv/coprocessor.go b/store/tikv/coprocessor.go
index 8db253229aa69..02d89a82dd4df 100644
--- a/store/tikv/coprocessor.go
+++ b/store/tikv/coprocessor.go
@@ -730,7 +730,7 @@ func (worker *copIteratorWorker) handleCopResponse(bo *Backoffer, resp *copRespo
 	}
 	if otherErr := resp.pbResp.GetOtherError(); otherErr != "" {
 		err := errors.Errorf("other error: %s", otherErr)
-		log.Warnf("coprocessor err: %v", err)
+		log.Warnf("txn_start_ts:%d region_id:%d store_addr:%s, coprocessor err: %v", worker.req.StartTs, task.region.id, task.storeAddr, err)
 		return nil, errors.Trace(err)
 	}
 	// When the request is using streaming API, the `Range` is not nil.