[not4land] Test CI

[jerryzh168]

Summary:

vllm/.buildkite/test-pipeline.yaml

Lines 99 to 100 in 8977ffb

	- export VLLM_WORKER_MULTIPROC_METHOD=spawn
	- pytest -v -s basic_correctness/test_cumem.py

is failing for me locally and on my PR, but not on other PRs or vllm main CI, trying to test with a blank PR

errors:

FAILED basic_correctness/test_cumem.py::test_python_error - RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method
FAILED basic_correctness/test_cumem.py::test_basic_cumem - RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method
FAILED basic_correctness/test_cumem.py::test_cumem_with_cudagraph - RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method
FAILED basic_correctness/test_cumem.py::test_end_to_end[hmellor/tiny-random-LlamaForCausalLM] - RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method
FAILED basic_correctness/test_cumem.py::test_end_to_end[facebook/opt-125m] - RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method
FAILED basic_correctness/test_cumem.py::test_deep_sleep - RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method
FAILED basic_correctness/test_cumem.py::test_deep_sleep_async - RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method

Test Plan:

Reviewers:

Subscribers:

Tasks:

Tags:

Purpose

Test Plan

Test Result

---

Essential Elements of an Effective PR Description Checklist

• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
• (Optional) The necessary documentation update, such as updating supported_models.md and examples for a new model.
• (Optional) Release notes update. If your change is user facing, please update the release notes draft in the Google Doc.

[gemini-code-assist]

Code Review

This pull request adds a comment to a docstring for the purpose of testing the CI pipeline. The change is non-functional and does not introduce any issues related to code quality, correctness, or security. Therefore, I have no specific feedback on the code changes.