diff --git a/lib/ts_common.sh b/lib/ts_common.sh
index 3e8bd1b1b27c988b6706ba9e8e7a68e2fc2d1a50..6470932b21c37f2c5a78b9b07e4af9c768666156 100644
--- a/lib/ts_common.sh
+++ b/lib/ts_common.sh
@@ -58,22 +58,29 @@ tc_teardown_common() {
 }
 
 # 判断ltp用例执行结果是否skip
-# $1 -- 执行结果路径
+# $1 -- 执行结果路径（包含 results.json 的目录）
 # 返回值：0 -- skip，1 -- 非skip
 is_test_skip() {
     local run_path="$1"
-
-    grep -A 5 "^Summary:" "$run_path/testcase.log" | grep "^failed[[:blank:]]*[1-9]$" && return 1
+    local report="${run_path}/results.json"
+
+    [ -f "$report" ] || return 1
+    python3 -c '
+import json, sys
+s = json.load(open(sys.argv[1]))["stats"]
+sys.exit(0 if (s["failed"]+s["broken"]==0 and s["skipped"]>0 and s["passed"]==0) else 1)
+' "$report"
 }
 
 # 执行ltp用例
-# $1 -- 用例所在文件
+# $1 -- 用例所在文件（runtest/ 下的 suite 名）
 # $2 -- 用例名称
 ltp_run_testcase() {
     local ret=0
-    local ltp_ret=0
     local case_file=$1
     local case_name=$2
+    local run_dir="${g_test_dir}/run"
+    local report="${run_dir}/results.json"
 
     local tst_block=/dev/vdb
     if [ -n "$TST_DEVICE_BLOCK" ] && [ -b "$TST_DEVICE_BLOCK" ]; then
@@ -93,76 +100,72 @@ ltp_run_testcase() {
     msg "tst_block=$tst_block"
     skip_if_false [ -b "$tst_block" ]
 
-    rm -rf "${g_test_dir}/run"
-    mkdir -p "${g_test_dir}/run/tmp"
-    cd "${g_install_dir}" || return 1
-    # 将用例对应的命令写入文件
-    if ! grep "^${case_name}[[:blank:]]" "${g_install_dir}/runtest/$case_file"; then
-        echo "get command for testcase $case_name fail"
+    if ! grep -wq "^${case_name}" "${g_install_dir}/runtest/${case_file}"; then
+        echo "case $case_name not in runtest/$case_file"
         return 1
     fi
-    cat "${g_install_dir}"/runtest/* | grep -w "^$case_name" >"${g_test_dir}/run/testcase.run"
-    echo "testcase.run >>>>"
-    cat "${g_test_dir}/run/testcase.run"
-    echo "<<<< testcase.run"
-
-    # 执行用例
-    ./runltp -p \
-        -C "${g_test_dir}/run/testcase.fail" \
-        -T "${g_test_dir}/run/testcase.nofully" \
-        -d "${g_test_dir}/run/tmp" \
-        -f "${g_test_dir}/run/testcase.run" \
-        -l "${g_test_dir}/run/testcase.result" \
-        -o "${g_test_dir}/run/testcase.log" \
-        -B "ext4" \
-        -z "$tst_block" -Z ext4
-    ltp_ret=$?
-    msg "runltp exit with code $ltp_ret"
-    if [ $ltp_ret -ne 0 ]; then
-        ret=1
-    fi
 
-    # 打印测试日志
-    for f in testcase.fail testcase.nofully testcase.run testcase.result testcase.log; do
-        echo "=====[ show ${g_test_dir}/run/$f ]====="
-        if [ -f "${g_test_dir}/run/$f" ]; then
-            cat "${g_test_dir}/run/$f"
-        else
-            msg "file ${g_test_dir}/run/$f not found"
-        fi
-        echo "=====[ show ${g_test_dir}/run/$f ]====="
-    done
+    # kirk 拒绝覆盖已存在的 json 报告，运行前清空目录
+    rm -rf "$run_dir"
+    mkdir -p "$run_dir/tmp"
+    cd "${g_install_dir}" || return 1
 
-    if [ $ret -ne 0 ]; then
-        # 用例如果失败了，就把内核日志也一起打印出来
-        echo "====[ show ${g_test_dir}/run/dmesg.lasg.log ]===="
-        [ -f "${g_test_dir}/run/dmesg.lasg.log" ] && cat "${g_test_dir}/run/dmesg.lasg.log"
+    # 块设备通过环境变量传给 kirk，libkirk/ltp.py 会自动转发 LTP_/TST_ 前缀变量
+    export LTP_DEV="$tst_block"
+    export LTP_DEV_FS_TYPE=ext4
+    export LTP_BIG_DEV="$tst_block"
+    export LTP_BIG_DEV_FS_TYPE=ext4
+
+    ./kirk \
+        --no-colors -v \
+        -d "$run_dir/tmp" \
+        -o "$report" \
+        -f "$case_file" \
+        -p "^${case_name}$"
+    msg "kirk exit with code $?"
+
+    echo "=====[ show $report ]====="
+    if [ -f "$report" ]; then
+        cat "$report"
+    else
+        msg "file $report not found"
+        echo "=====[ show $report ]====="
         echo "====[ dmesg -c ]===="
         dmesg -c
+        return 1
     fi
+    echo "=====[ show $report ]====="
+
+    local stats_output
+    if ! stats_output="$(python3 -c '
+import json, sys
+with open(sys.argv[1]) as f:
+    s = json.load(f)["stats"]
+print(s["passed"], s["failed"], s["broken"], s["skipped"])
+' "$report")"; then
+        msg "parse $report fail"
+        return 1
+    fi
+    local passed failed broken skipped
+    read -r passed failed broken skipped <<<"$stats_output"
+    msg "passed=$passed failed=$failed broken=$broken skipped=$skipped"
 
-    # 测试没结果，直接失败
-    [ -f "${g_test_dir}/run/testcase.result" ] || return 1
-
-    # 检查执行结果
-    echo "check ${g_test_dir}/run/testcase.fail"
-    [ "$(wc -l <"${g_test_dir}/run/testcase.fail")" -ne 0 ] && {
-        echo "some testcase fail"
-        ret=1
-    }
-
-    local ltp_total
-    ltp_total="$(grep "Total Tests:" "${g_test_dir}/run/testcase.result" | awk '{print $NF}')"
-    local ltp_skip
-    ltp_skip="$(grep "Total Skipped Tests:" "${g_test_dir}/run/testcase.result" | awk '{print $NF}')"
-    msg "ltp_total=$ltp_total, ltp_skip=$ltp_skip"
-    if [ -z "$ltp_total" ]; then
+    local executed=$((passed + failed + broken))
+    if [ "$((executed + skipped))" -eq 0 ]; then
         ret=1
-    elif [ "$ltp_total" -eq 0 ]; then
+    elif [ "$failed" -gt 0 ] || [ "$broken" -gt 0 ]; then
         ret=1
-    elif [ "$ltp_total" == "$ltp_skip" ]; then
+    elif [ "$executed" -eq 0 ] && [ "$skipped" -gt 0 ]; then
         skip_test "all test skip"
     fi
 
+    if [ $ret -ne 0 ]; then
+        # 用例如果失败了，就把内核日志也一起打印出来
+        echo "====[ show ${run_dir}/dmesg.lasg.log ]===="
+        [ -f "${run_dir}/dmesg.lasg.log" ] && cat "${run_dir}/dmesg.lasg.log"
+        echo "====[ dmesg -c ]===="
+        dmesg -c
+    fi
+
     return $ret
 }
diff --git a/tst-open-ltp b/tst-open-ltp
index 01614cde43132e7da9f3c9ba7703ead576caa424..70511a0d16e1203ca6316918ba8c66631e0c047c 160000
--- a/tst-open-ltp
+++ b/tst-open-ltp
@@ -1 +1 @@
-Subproject commit 01614cde43132e7da9f3c9ba7703ead576caa424
+Subproject commit 70511a0d16e1203ca6316918ba8c66631e0c047c