openai/codex · error · anyhow::Error

runner {pipe_label} connect thread exited before publishing

Error message

runner {pipe_label} connect thread exited before publishing its handle

What it means

Error "runner {pipe_label} connect thread exited before publishing its handle" thrown in openai/codex.

Source

Thrown at codex-rs/windows-sandbox-rs/src/elevated/runner_client.rs:243

                    let _ = thread_handle_tx.send(Err(anyhow::anyhow!(
                        "DuplicateHandle failed for runner {pipe_label_for_thread} connect thread: {}",
                        unsafe { GetLastError() }
                    )));
                    return;
                }

                // Publish the helper thread HANDLE before the blocking pipe connect so the
                // parent can cancel this specific operation if it times out.
                let _ = thread_handle_tx.send(Ok(thread_handle));

                let result = connect_pipe(h_pipe, expected_runner_pid)
                    .map_err(anyhow::Error::from)
                    .context(format!("connect {pipe_label_for_thread}"));
                let _ = connect_result_tx.send(result);
            })?,
    );
    let thread_handle = thread_handle_rx.recv().map_err(|_| {
        anyhow::anyhow!("runner {pipe_label} connect thread exited before publishing its handle")
    })??;

    let result = match connect_result_rx.recv_timeout(RUNNER_PIPE_CONNECT_TIMEOUT) {
        Ok(result) => {
            if let Some(connect_thread) = connect_thread.take() {
                let _ = connect_thread.join();
            }
            result
        }
        Err(mpsc::RecvTimeoutError::Timeout) => {
            if let Some(result) = try_take_completed_connect_result(
                &mut connect_thread,
                &connect_result_rx,
                thread_handle,
                &pipe_label,
            )? {
                result
            } else {

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/windows-sandbox-rs/src/elevated/runner_client.rs:243 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/4e9a92119f3d9a9b. Report an issue: GitHub.