diff --git a/ai/ai.js b/ai/ai.js
index 13ae385b065d8e8a4b80e5b5f1c81f9c4a4db035..501d3c6edbb865385bd926b523b38d222a81ca57 100644
--- a/ai/ai.js
+++ b/ai/ai.js
@@ -115,7 +115,7 @@ function diagnosis(dirPath, filePath, session_id, data) {
             // 文件存在时，调用算法库，获取诊断结果
             const mainExePath = path.join(__dirname, '..', 'bin', 'main.exe');
             let command = `"${mainExePath.replace(/\\/g, "/")}" --db_path "${filePath.replace(/\\/g, "/")}"${str}`;
-            exec(command, {encoding: 'buffer'}, (error, stdout, stderr) => {
+            exec(command, {encoding: 'buffer',maxBuffer: 1024 * 1024 * 500}, (error, stdout, stderr) => {
                 if (error || (stderr && stderr.length > 0)) {
                     message.code = 1;
                     message.message = `error: ${error ? error.message : stderr.toString()}`;
diff --git a/app.js b/app.js
index 609cbaa93d86ae0416a97ea31105abafd7f3a1e4..46e7db509db8798d5da047fc639e0135aec0b258 100644
--- a/app.js
+++ b/app.js
@@ -88,6 +88,9 @@ wss.on('connection', function connection(ws) {
 
     // 当发生错误时触发
     ws.on('error', function error(err) {
+        if(err.code === 'EADDRINUSE') {
+            logger.err(`Port ${Utils.AuthMsg.SW_PORT} is occupied`);
+        }
         logger.error(`Connection error:${err}`);
     });
 })
diff --git a/disassembly/disassembly.js b/disassembly/disassembly.js
index 7a79d60fda9663a13fac0d4c61c43fb74b38fdc3..b78b44b9b022fae5ac3f6edd00a86d7fc668bb43 100644
--- a/disassembly/disassembly.js
+++ b/disassembly/disassembly.js
@@ -24,6 +24,7 @@ const SAVE_CMD = 1;         // {file_name:str, buffer:str, buffer_size:num, tota
 const SAVE_BACK_CMD = 2;    // {result:num, msg:str}
 const QUERY_CMD = 3;        // {elf_name:str, vaddr:str, func:str}
 const QUERY_BACK_CMD = 4;   // {result:num, msg:str}
+const DISASSEMBLY_QUERY_ELF_CMD = 5;// {elf_name:str, vaddr:str, func:str}
 const logger = winston.createLogger(require('./../winston.config.js'));
 
 const decoder = new TextDecoder('utf-8');  // 'utf-8' 是常见的字符编码
@@ -55,9 +56,40 @@ function process(session_id, cmd, data) {
         save(session_id, data);
     } else if (cmd === QUERY_CMD) {
         queryData(session_id, data);
+    } else if (cmd === DISASSEMBLY_QUERY_ELF_CMD) {
+        checkElf(session_id, data);
     }
 }
 
+/**
+ * 搜索so/an文件
+ */
+function checkElf(session_id, data) {
+    const decodedData = decoder.decode(data);
+    const jsonData = JSON.parse(decodedData);
+    let { elf_name, vaddr, func } = jsonData;
+    if (elf_name.endsWith('.an')) {
+        let anFilePath = path.join(TEMP_DIR, `session_${session_id}`, elf_name);
+        if (!fs.existsSync(anFilePath)) {
+            const msg = `FileNotFoundError: please import "${elf_name}"`;
+            logger.error('error：' + msg);
+            sendMsg(session_id, DISASSEMBLY_QUERY_ELF_CMD, { code: 1, message: msg });
+            return;
+        } else {
+            sendMsg(session_id, DISASSEMBLY_QUERY_ELF_CMD, { code: 0, message: 'OK' });
+        }
+    } else {
+        let soInfoTxt = path.join(TEMP_DIR, `session_${session_id}`, `${elf_name.replace('.', '_')}.txt`);
+        if (!fs.existsSync(soInfoTxt)) {
+            const msg = `FileNotFoundError: please import "${elf_name}"`;
+            logger.error('error：' + msg);
+            sendMsg(session_id, DISASSEMBLY_QUERY_ELF_CMD, { code: 1, message: msg });
+            return;
+        } else {
+            sendMsg(session_id, DISASSEMBLY_QUERY_ELF_CMD, { code: 0, message: 'OK' });
+        }
+    }
+}
 /**
  * 写入ELF文件
  */
@@ -282,23 +314,28 @@ function queryData(session_id, data) {
         let resultString = '';
         let addrArray = [];
         rl.on('line', (line) => {
-            if (isInTargetRange) {
-                if (line.startsWith(prefix)) {
-                    isInTargetRange = false;
-                    rl.close();
-                } else if (line.trim() !== '') {
-                    let addr = line.split(`:`)[0].replace(/\s+/g, '');
-                    let instruction = line.split(`:`)[1];
-                    instruction = instruction.substring(instruction.indexOf(' '));
-                    instruction = instruction.replace(/\s+/g, ' ').trimStart().trimEnd();
-                    addrArray.push("0x"+addr)
-                    resultString += `{\"addr\":\"0x${addr}\", \"instruction\":\"${instruction}\"},`;
+            try {
+                if (isInTargetRange) {
+                    if (line.startsWith(prefix)) {
+                        isInTargetRange = false;
+                        rl.close();
+                    } else if (line.trim() !== '') {
+                        let addr = line.split(`:`)[0].replace(/\s+/g, '');
+                        let instruction = line.split(`:`)[1];
+                        instruction = instruction.substring(instruction.indexOf(' '));
+                        instruction = instruction.replace(/\s+/g, ' ').trimStart().trimEnd();
+                        addrArray.push("0x" + addr)
+                        resultString += `{\"addr\":\"0x${addr}\", \"instruction\":\"${instruction}\"},`;
+                    }
                 }
-            }
 
-            if (!isInTargetRange && line.startsWith(target)) {
-                isInTargetRange = true;
+                if (!isInTargetRange && line.startsWith(target)) {
+                    isInTargetRange = true;
+                }
+            } catch (error) {
+                const errMsg = `Reading failed.Error):[${error.message}]`;
             }
+
         });
 
         rl.on('close', async () => {
diff --git a/version.js b/version.js
index 0ca4ca8b056e064b126651b35a63fcdc52705713..b67bf7a43daeb1ec9de6d0414fd30586c16b3b3a 100644
--- a/version.js
+++ b/version.js
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 class version {
-    static version = '1.1.0'; //版本号
+    static version = '1.1.1'; //版本号
 }
 
 module.exports = {