diff --git a/src/environment_data.cc b/src/environment_data.cc
index a3e971f..1db1494 100644
--- a/src/environment_data.cc
+++ b/src/environment_data.cc
@@ -55,7 +55,8 @@ EnvironmentData::EnvironmentData(v8::Isolate* isolate, uv_loop_t* loop)
 
 void EnvironmentData::AtExit(void* arg) {
   // TODO(legendecas): environment registry.
-  per_process::environment_data.reset();
+  // TODO(hyj1991): avoid 0xC0000005 on windows
+  // per_process::environment_data.reset();
 }
 
 void EnvironmentData::SendCollectStatistics() {
diff --git a/test/commands.test.js b/test/commands.test.js
index d1885d1..28adfb3 100644
--- a/test/commands.test.js
+++ b/test/commands.test.js
@@ -44,6 +44,7 @@ for (let i = 0; i < testConfig.length; i++) {
       let resByXctl = '';
       let resByXprofctl = '';
       let pid = 0;
+      let exitInfo = { code: null, signal: null };
       before(async function () {
         mm(os, 'homedir', () => tmphome);
         console.log(`[${moment().format('YYYY-MM-DD HH:mm:ss')}]`, 'start fork.');
@@ -72,7 +73,7 @@ for (let i = 0; i < testConfig.length; i++) {
         });
         resByXprofctl = resByXprofctl.stderr.trim() + resByXprofctl.stdout.trim();
         console.log(`[${moment().format('YYYY-MM-DD HH:mm:ss')}]`, 'wait for child process done.');
-        await new Promise(resolve => p.on('close', resolve));
+        exitInfo = await utils.getChildProcessExitInfo(p);
       });
 
       after(function () {
@@ -83,6 +84,11 @@ for (let i = 0; i < testConfig.length; i++) {
         }
       });
 
+      it(`child process should be exited with code 0`, function () {
+        console.log(`[${moment().format('YYYY-MM-DD HH:mm:ss')}]`, `exit info: ${JSON.stringify(exitInfo)}`);
+        utils.checkChildProcessExitInfo(expect, exitInfo);
+      });
+
       it(`response with xctl should be ok`, function () {
         console.log('xtcl:', JSON.stringify(resByXctl));
         expect(resByXctl).to.be.ok();
diff --git a/test/fixtures/utils.js b/test/fixtures/utils.js
index be4b112..782002c 100644
--- a/test/fixtures/utils.js
+++ b/test/fixtures/utils.js
@@ -57,6 +57,17 @@ exports.getNestingValue = function (origin, key) {
   return origin;
 };
 
-exports.arrayEqual = function arrayEqual(arr1, arr2) {
+exports.arrayEqual = function (arr1, arr2) {
   return arr1.every(a1 => arr2.includes(a1)) && arr2.every(a2 => arr1.includes(a2));
+};
+
+exports.getChildProcessExitInfo = function (proc) {
+  return new Promise(resolve => proc.on('close', (code, signal) => resolve({ code, signal })));
+};
+
+exports.checkChildProcessExitInfo = function (expect, exitInfo) {
+  const { code, signal } = exitInfo;
+  // One of the code | signal will always be non-null.
+  expect(code === 0).to.be.ok();
+  expect(signal === null).to.be.ok();
 };
\ No newline at end of file
diff --git a/test/logbypass.test.js b/test/logbypass.test.js
index d4da569..c8dd470 100644
--- a/test/logbypass.test.js
+++ b/test/logbypass.test.js
@@ -3,6 +3,7 @@
 const fs = require('fs');
 const cp = require('child_process');
 const expect = require('expect.js');
+const moment = require('moment');
 const pack = require('../package.json');
 const utils = require('./fixtures/utils');
 const getTestCases = require('./fixtures/logbypass.test');
@@ -77,10 +78,11 @@ for (const testCase of cases) {
       /*eslint no-loop-func: "off" */
       let logContent;
       let pid;
+      let exitInfo = { code: null, signal: null };
       before(async function () {
         const p = cp.fork(target.file, { env: Object.assign({ XPROFILER_LOG_TYPE: 1 }, testCase.env, target.env) });
         pid = p.pid;
-        await new Promise(resolve => p.on('close', resolve));
+        exitInfo = await utils.getChildProcessExitInfo(p);
         logContent = fs.readFileSync(target.logfile, 'utf8');
       });
 
@@ -98,6 +100,11 @@ for (const testCase of cases) {
         }
       });
 
+      it(`child process should be exited with code 0`, function () {
+        console.log(`[${moment().format('YYYY-MM-DD HH:mm:ss')}]`, `exit info: ${JSON.stringify(exitInfo)}`);
+        utils.checkChildProcessExitInfo(expect, exitInfo);
+      });
+
       const types = Object.keys(testCase.struct);
       for (const type of types) {
         describe(`parse log type [${type}] with content`, function () {