deepseek-ai/deepseek-harness · error · Error

subprocess-e2b: remote command exited before publishing its

Error message

subprocess-e2b: remote command exited before publishing its process-group id

What it means

Error "subprocess-e2b: remote command exited before publishing its process-group id" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/e2b/subprocess-e2b/src/process.ts:507

    while (true) {
      // TODO(e2b-publication-cancel): Join cancellation to the existing
      // termination transaction before aborting an in-flight SDK file read.
      const raw = await sandbox.files.read(this.paths.pid)
      const value = raw.trim()
      if (value.length > 0) {
        const pid = Number(value)
        if (!/^[1-9][0-9]*$/.test(value) || !Number.isSafeInteger(pid)) {
          throw new Error(`subprocess-e2b: remote wrapper published invalid process-group id ${JSON.stringify(value)}`)
        }
        // A same-UID sandbox process can rewrite this file; refuse ids whose
        // negative form addresses every process (`kill -- -1`) or init's group.
        if (pid <= 1) {
          throw new Error(`subprocess-e2b: unsafe published process-group id ${pid}`)
        }
        return pid
      }
      const settled = await Promise.race([commandSettled, waitTick(this.pollMs).then(() => false)])
      if (settled) throw new Error('subprocess-e2b: remote command exited before publishing its process-group id')
    }
  }

  private async waitForCommand(
    sandbox: Sandbox,
    handle: CommandHandle,
    completion: Promise<CommandResult>,
  ): Promise<SubprocessOutcome> {
    const settlement = completion.then<CommandSettlement, CommandSettlement>(
      result => ({ kind: 'result', result }),
      (error: unknown) => ({ kind: 'error', error }),
    )
    const hasPipeOutput = this.spec.stdio.stdout === 'pipe' || this.spec.stdio.stderr === 'pipe'
    let completed = hasPipeOutput ? await settlement : undefined
    while (true) {
      const rawStatus = (await sandbox.files.read(this.paths.status)).trim()
      if (rawStatus.length > 0) {
        const exitCode = Number(rawStatus)

View on GitHub (pinned to b150a551b8)

When it happens

Trigger: Thrown at packages/e2b/subprocess-e2b/src/process.ts:507 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/1e246fad65416a8b. Report an issue: GitHub.