diff --git a/checkout-pr-branch.sh b/checkout-pr-branch.sh
index e888709847cb1..2f78588650a7d 100755
--- a/checkout-pr-branch.sh
+++ b/checkout-pr-branch.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # This script is used to checkout a TiDB PR branch in a forked repo.
 if test -z $1; then
diff --git a/cmd/explaintest/run-tests.sh b/cmd/explaintest/run-tests.sh
index ed3c942432d7d..f195392a0402d 100755
--- a/cmd/explaintest/run-tests.sh
+++ b/cmd/explaintest/run-tests.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 TIDB_TEST_STORE_NAME=$TIDB_TEST_STORE_NAME
 TIKV_PATH=$TIKV_PATH
diff --git a/hooks/pre-commit b/hooks/pre-commit
index 8bc330c9af495..c7d8d2536c360 100755
--- a/hooks/pre-commit
+++ b/hooks/pre-commit
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # This file modified from k8s
 # https://github.com/kubernetes/kubernetes/blob/master/hooks/pre-commit
 # Now It's removed, The Reason is https://github.com/kubernetes/community/issues/729
diff --git a/tidb-server/main.go b/tidb-server/main.go
index ea7398b2d25fd..577e1c341df22 100644
--- a/tidb-server/main.go
+++ b/tidb-server/main.go
@@ -60,7 +60,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/push"
 	"github.com/struCoder/pidusage"
-	_ "go.uber.org/automaxprocs"
+	"go.uber.org/automaxprocs/maxprocs"
 	"go.uber.org/zap"
 )
 
@@ -569,6 +569,10 @@ func setupLog() {
 
 	err = logutil.InitLogger(cfg.Log.ToLogConfig())
 	terror.MustNil(err)
+	// Disable automaxprocs log
+	nopLog := func(string, ...interface{}) {}
+	_, err = maxprocs.Set(maxprocs.Logger(nopLog))
+	terror.MustNil(err)
 }
 
 func printInfo() {
diff --git a/tools/check/check_testSuite.sh b/tools/check/check_testSuite.sh
index a426ce904c066..5ae8eceb44cdd 100755
--- a/tools/check/check_testSuite.sh
+++ b/tools/check/check_testSuite.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail