From bf45b786cdb868085b5eae965a99b55f1c06849b Mon Sep 17 00:00:00 2001
From: Niklas Mischkulnig <4586894+mischnic@users.noreply.github.com>
Date: Mon, 22 Sep 2025 14:41:54 +0200
Subject: [PATCH] Turbopack: flush Node.js worker IPC on error

---
 turbopack/crates/turbopack-node/js/src/ipc/index.ts | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/turbopack/crates/turbopack-node/js/src/ipc/index.ts b/turbopack/crates/turbopack-node/js/src/ipc/index.ts
index 83f29f3296a8a4..3868cf7ddeff30 100644
--- a/turbopack/crates/turbopack-node/js/src/ipc/index.ts
+++ b/turbopack/crates/turbopack-node/js/src/ipc/index.ts
@@ -168,18 +168,20 @@ function createIpc<TIncoming, TOutgoing>(
     sendReady,
 
     async sendError(error: Error): Promise<never> {
+      let failed = false
       try {
         await send({
           type: 'error',
           ...structuredError(error),
         })
       } catch (err) {
+        // There's nothing we can do about errors that happen after this point, we can't tell anyone
+        // about them.
         console.error('failed to send error back to rust:', err)
-        // ignore and exit anyway
-        process.exit(1)
+        failed = true
       }
-
-      process.exit(0)
+      await new Promise<void>((res) => socket.end(() => res()))
+      process.exit(failed ? 1 : 0)
     },
   }
 }