diff --git a/src/cli/daemon-cli/restart-health.test.ts b/src/cli/daemon-cli/restart-health.test.ts
deleted file mode 100644
index c438e9a0ea8..00000000000
--- a/src/cli/daemon-cli/restart-health.test.ts
+++ /dev/null
@@ -1,57 +0,0 @@
-import { beforeEach, describe, expect, it, vi } from "vitest";
-import type { GatewayService } from "../../daemon/service.js";
-
-const inspectPortUsage = vi.hoisted(() => vi.fn());
-const classifyPortListener = vi.hoisted(() => vi.fn(() => "gateway"));
-
-vi.mock("../../infra/ports.js", () => ({
-  classifyPortListener: (...args: unknown[]) => classifyPortListener(...args),
-  formatPortDiagnostics: vi.fn(() => []),
-  inspectPortUsage: (...args: unknown[]) => inspectPortUsage(...args),
-}));
-
-describe("inspectGatewayRestart", () => {
-  beforeEach(() => {
-    inspectPortUsage.mockReset();
-    classifyPortListener.mockReset();
-    classifyPortListener.mockReturnValue("gateway");
-  });
-
-  it("treats a gateway listener child pid as healthy ownership", async () => {
-    const service = {
-      readRuntime: vi.fn(async () => ({ status: "running", pid: 7000 })),
-    } as unknown as GatewayService;
-
-    inspectPortUsage.mockResolvedValue({
-      port: 18789,
-      status: "busy",
-      listeners: [{ pid: 7001, ppid: 7000, commandLine: "openclaw-gateway" }],
-      hints: [],
-    });
-
-    const { inspectGatewayRestart } = await import("./restart-health.js");
-    const snapshot = await inspectGatewayRestart({ service, port: 18789 });
-
-    expect(snapshot.healthy).toBe(true);
-    expect(snapshot.staleGatewayPids).toEqual([]);
-  });
-
-  it("marks non-owned gateway listener pids as stale while runtime is running", async () => {
-    const service = {
-      readRuntime: vi.fn(async () => ({ status: "running", pid: 8000 })),
-    } as unknown as GatewayService;
-
-    inspectPortUsage.mockResolvedValue({
-      port: 18789,
-      status: "busy",
-      listeners: [{ pid: 9000, ppid: 8999, commandLine: "openclaw-gateway" }],
-      hints: [],
-    });
-
-    const { inspectGatewayRestart } = await import("./restart-health.js");
-    const snapshot = await inspectGatewayRestart({ service, port: 18789 });
-
-    expect(snapshot.healthy).toBe(false);
-    expect(snapshot.staleGatewayPids).toEqual([9000]);
-  });
-});
diff --git a/src/cli/daemon-cli/restart-health.ts b/src/cli/daemon-cli/restart-health.ts
index 575fdee7ec9..4a0d5bcf4bb 100644
--- a/src/cli/daemon-cli/restart-health.ts
+++ b/src/cli/daemon-cli/restart-health.ts
@@ -21,13 +21,6 @@ export type GatewayRestartSnapshot = {
   staleGatewayPids: number[];
 };
 
-function listenerOwnedByRuntimePid(params: {
-  listener: PortUsage["listeners"][number];
-  runtimePid: number;
-}): boolean {
-  return params.listener.pid === params.runtimePid || params.listener.ppid === params.runtimePid;
-}
-
 export async function inspectGatewayRestart(params: {
   service: GatewayService;
   port: number;
@@ -63,26 +56,16 @@ export async function inspectGatewayRestart(params: {
   const running = runtime.status === "running";
   const ownsPort =
     runtime.pid != null
-      ? portUsage.listeners.some((listener) =>
-          listenerOwnedByRuntimePid({ listener, runtimePid: runtime.pid }),
-        )
+      ? portUsage.listeners.some((listener) => listener.pid === runtime.pid)
       : gatewayListeners.length > 0 ||
         (portUsage.status === "busy" && portUsage.listeners.length === 0);
   const healthy = running && ownsPort;
   const staleGatewayPids = Array.from(
     new Set(
       gatewayListeners
-        .filter((listener) => Number.isFinite(listener.pid))
-        .filter((listener) => {
-          if (!running) {
-            return true;
-          }
-          if (runtime.pid == null) {
-            return true;
-          }
-          return !listenerOwnedByRuntimePid({ listener, runtimePid: runtime.pid });
-        })
-        .map((listener) => listener.pid as number),
+        .map((listener) => listener.pid)
+        .filter((pid): pid is number => Number.isFinite(pid))
+        .filter((pid) => runtime.pid == null || pid !== runtime.pid || !running),
     ),
   );
 
diff --git a/src/infra/ports-inspect.ts b/src/infra/ports-inspect.ts
index 344086ae14a..d6c172a7bd9 100644
--- a/src/infra/ports-inspect.ts
+++ b/src/infra/ports-inspect.ts
@@ -75,16 +75,6 @@ async function resolveUnixUser(pid: number): Promise<string | undefined> {
   return line || undefined;
 }
 
-async function resolveUnixParentPid(pid: number): Promise<number | undefined> {
-  const res = await runCommandSafe(["ps", "-p", String(pid), "-o", "ppid="]);
-  if (res.code !== 0) {
-    return undefined;
-  }
-  const line = res.stdout.trim();
-  const parentPid = Number.parseInt(line, 10);
-  return Number.isFinite(parentPid) && parentPid > 0 ? parentPid : undefined;
-}
-
 async function readUnixListeners(
   port: number,
 ): Promise<{ listeners: PortListener[]; detail?: string; errors: string[] }> {
@@ -98,10 +88,9 @@ async function readUnixListeners(
         if (!listener.pid) {
           return;
         }
-        const [commandLine, user, parentPid] = await Promise.all([
+        const [commandLine, user] = await Promise.all([
           resolveUnixCommandLine(listener.pid),
           resolveUnixUser(listener.pid),
-          resolveUnixParentPid(listener.pid),
         ]);
         if (commandLine) {
           listener.commandLine = commandLine;
@@ -109,9 +98,6 @@ async function readUnixListeners(
         if (user) {
           listener.user = user;
         }
-        if (parentPid !== undefined) {
-          listener.ppid = parentPid;
-        }
       }),
     );
     return { listeners, detail: res.stdout.trim() || undefined, errors };
diff --git a/src/infra/ports-types.ts b/src/infra/ports-types.ts
index 827a5b3ade9..56accc93aff 100644
--- a/src/infra/ports-types.ts
+++ b/src/infra/ports-types.ts
@@ -1,6 +1,5 @@
 export type PortListener = {
   pid?: number;
-  ppid?: number;
   command?: string;
   commandLine?: string;
   user?: string;