diff --git a/tests/certify/kdump/kdump.sh b/tests/certify/kdump/kdump.sh
index d1ec1b40260252cdbd7a7550b143c9139e507245..1d91167baf11d87926ceabd8c50adc0a547e3c13 100644
--- a/tests/certify/kdump/kdump.sh
+++ b/tests/certify/kdump/kdump.sh
@@ -6,135 +6,136 @@ FLAGFILE='crash.txt'
 BASE_PATH="$(cd "$(dirname "$0")";pwd)"
 VMLINUX_PATH=/lib/debug/lib/modules/`uname -r`/vmlinux
 
+function check() {
+    local fail_msg=""
+    local debuginfo_load=$(rpm -qa | grep "debuginfo")
+
+    command -v 'kexec' >/dev/null 2>&1 || fail_msg="${fail_msg}Fail: kexec-tools not found"
+    echo "===Check cmdline==="
+    if ! grep 'crashkernel=' /proc/cmdline; then
+        fail_msg="${fail_msg}Fail: error changing Boot Loader, no crashkernel=.\n"
+    fi
+
+    echo "===Check kernel allocated memory==="
+    if [ $(cat /sys/kernel/kexec_crash_size) -le 0 ];then
+        fail_msg="${fail_msg}Fail: it's unallocated memory for kernel\n"
+    fi
+
+    echo "===Check kernel-debuginfo rpm==="
+    if [[ $debuginfo_load =~ "kernel-debuginfo" ]] && [[ $debuginfo_load =~ "kernel-debuginfo-common" ]]; then
+        echo "kernel-debuginfo and kernel-debuginfo-common have loaded!"
+    else
+        fail_msg="${fail_msg}Fail: kernel-debuginfo and kernel-debuginfo-common should be loaded first!\n"
+    fi
+
+    echo "===Check kernel version==="
+    kernel_debuginfo_ver=$(rpm -ql kernel-debuginfo|grep vmlinux|awk -F/ '{print $(NF-1)}')
+    if [ "$kernel_debuginfo_ver" != "$(uname -r)" ];then
+        echo "Error: The kernel version is inconsistent, kernel debuginfo version is $kernel_debuginfo_ver, but kernel version is $(uname -r)."
+        echo "please install kernel-debuginfo-`uname -r`"
+        test_fail
+    fi
+
+    echo $VMLINUX_PATH
+    if [ -a $VMLINUX_PATH ]; then
+        echo "vmlinux file is exist!"
+    else
+        fail_msg="${fail_msg}Fail: vmlinux file is not exist, path is $VMLINUX_PATH\n"
+    fi
+
+    if [ -n "${fail_msg}" ]; then
+        echo -e "${fail_msg}"
+        echo "Please fixed the above failures before continuing."
+        return 1
+    else
+        echo "kdump prepare check success!"
+    fi
+    return 0
+}
+
 function setup_kdump() {
-	if [ ! -x "/sbin/kexec" ]; then
-		echo "Fail: kexec-tools not found."
-		error=1
-	fi
-
-	if ! grep 'crashkernel=' /proc/cmdline; then
-		echo "Fail: error changing Boot Loader, no crashkernel=."
-		error=1
-	fi
-
-	debuginfo_load=$(rpm -qa | grep "debuginfo")
-	if [[ $debuginfo_load =~ "kernel-debuginfo" ]] && [[ $debuginfo_load =~ "kernel-debuginfo-common" ]]; then
-		echo "kernel-debuginfo and kernel-debuginfo-common have loaded!"
-	else
-		echo "Fail: kernel-debuginfo and kernel-debuginfo-common should be loaded first!"
-		error=1
-	fi
-
-	echo $VMLINUX_PATH
-	if [ -a $VMLINUX_PATH ]; then
-		echo "vmlinux file is exist!"
-	else
-		echo "Fail: vmlinux file is not exist, path is $VMLINUX_PATH"
-		error=1
-	fi
-
-	if [ "${error}" ]; then
-		echo "Please fixed the above failures before continuing."
-		return 1
-	else
-		echo "kdump prepare check success!"
-	fi
-
-	cat /etc/default/grub
-	cat /etc/kdump.conf
-	#kdump enable
-	ret="$(systemctl status kdump)"
-	echo $ret
-	active_str='Active: active'
-	if ! [[ $ret =~ $active_str ]]; then
-		echo "kdump is not enabled, start enable kdump"
-		systemctl start kdump.service
-		for ((i=0;i<5;i++))
-		do
-			sleep 10
-			ret="$(systemctl status kdump)"
-			if [[ $ret =~ $active_str ]]; then
-				break
-			fi
-		done
-		if [ $i -eq 5 ]; then
-			echo "Fail: error to  enable kdump"
-			return 1
-		fi
-	fi
-	echo "kdump enabled success"
-
-	#Restart automatically excute ancert kdump check
-	conffile='/etc/rc.d/rc.local'
-	find_ret=$(find $BASE_PATH/../../ -name "ancert")
-	if [ $find_ret ]; then
-		python_excu='python3'
-	else
-		python_excu=''
-	fi
-	cmd1="cd $BASE_PATH/../../ "
-	cmd2="$python_excu ancert -g Kdump"
-	echo $cmd1
-	echo $cmd2
-	sed -i "\$a $cmd1" $conffile
-	sed -i "\$a $cmd2" $conffile
-	chmod +x $conffile
-
-	return 0
+    local conffile='/etc/rc.d/rc.local'
+    local find_ret=$(find $BASE_PATH/../../../ -name "ancert")
+
+    check || return 1
+
+    cat /etc/default/grub
+    cat /etc/kdump.conf
+    #kdump enable
+    if ! systemctl is-active kdump; then
+        echo "kdump is not enabled, start enable kdump"
+        systemctl start kdump.service
+        for ((i=0;i<5;i++));do
+            sleep 10
+            systemctl is-active kdump && break
+        done
+        [ $i -eq 5 ] && { echo "Fail: error to enable kdump";return 1; }
+    fi
+    echo "kdump enabled success"
+
+    #Restart automatically excute ancert kdump check
+    [ -n "$find_ret" ] && python_excu='python3' || python_excu=''
+    cmd1="cd $BASE_PATH/../../../"
+    cmd2="$python_excu ancert -g Kdump --single_mode"
+    echo $cmd1
+    echo $cmd2
+    sed -i "\$a $cmd1" $conffile
+    sed -i "\$a $cmd2" $conffile
+    chmod +x $conffile
+    return 0
 }
 
 function run_kdump_test() {
-	setup_kdump
-	if [ $? -ne 0 ]; then
-		echo "setup kdump fail"
-		test_fail
-	fi
-
-	echo "start to trigger crash"
-	rm -rf $COREDIR
-	systemctl status kdump
-	echo "kdump test finish"> $FLAGFILE
-	sync
-	echo c > /proc/sysrq-trigger
-	return 0
+    setup_kdump || { echo "setup kdump fail";test_fail; }
+    echo "start to trigger crash"
+    rm -rf $COREDIR
+    systemctl status kdump
+    echo "kdump test finish"> $FLAGFILE
+    sync
+    echo c > /proc/sysrq-trigger
+    return 0
 }
 
 function run_vmcore_check() {
-	if [ "$(ls -A $COREDIR)" = "" ]; then
-		echo $COREDIR" is empty, kdump test fail!"
-		test_clean
-		test_fail
-	else
-		echo "vmcore folder is exist, start to run crash cmd!"
-		rm -f crash.log
-		echo q | crash $VMLINUX_PATH $COREDIR/`ls $COREDIR`/vmcore > crash.log
-		if [ $? -eq 1 ]; then
-			echo "crash cmd fail, kdump test fail!"
-			cat crash.log
-			test_clean
-			test_fail
-		else
-			cat crash.log
-			echo "kdump test success!"
-			return 0
-		fi
-	fi
+    cat /etc/default/grub
+    echo -e "\nAllocate memory(`cat /sys/kernel/kexec_crash_size`) for the kernel\n"
+    cat /etc/kdump.conf
+    systemctl status kdump.service
+
+    if [ "$(ls -A $COREDIR)" = "" ]; then
+        echo $COREDIR" is empty, kdump test fail!"
+        test_clean
+        test_fail
+    else
+        echo "===vmcore folder is exist, start crash analysis,run it(crash $VMLINUX_PATH $COREDIR/`ls $COREDIR`/vmcore > crash.log)==="
+        rm -f crash.log
+        if ! echo q | crash $VMLINUX_PATH $COREDIR/`ls $COREDIR`/vmcore > crash.log;then
+            echo "crash cmd fail, kdump test fail!"
+            cat crash.log
+            rm -rf crash.log
+            test_clean
+            test_fail
+        else
+            cat crash.log
+            rm -rf crash.log
+            echo "kdump test success!"
+            return 0
+        fi
+    fi
 }
 
 function test_clean() {
-	echo "test finish, start to recover conf"
-	rm -f $FLAGFILE
-	conffile='/etc/rc.d/rc.local'
-	sed -i "\$d" $conffile
-	sed -i "\$d" $conffile
+    echo "test finish, start to recover conf"
+    for file in `find / -name "$FLAGFILE"`;do [ -f "$file" ] && rm -rf "$file";done
+    sed -i '/[K|k]dump/d' /etc/rc.d/rc.local
 }
 
 # # # # # # # # # # # # # # main # # # # # # # # # # # # # #
 print_test_info "Kdump"
 if [ -e $FLAGFILE ]; then
-	run_vmcore_check
-	test_clean
+    run_vmcore_check
+    test_clean
 else
-	run_kdump_test
+    run_kdump_test
 fi
 test_pass