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[Bugfix] Sync block_size from EngineCore to frontend for hybrid Mamba… - #42967
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Code Review
This pull request implements synchronization for the block_size parameter between the engine core and the client. The EngineCoreReadyResponse was updated to include block_size, and the MPClient now updates its local configuration using the maximum value received from the engines to ensure consistency, particularly for hybrid Mamba models. A new unit test verifies this behavior. I have no feedback to provide as there were no review comments.
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Thank you, this is closely related to #42206 |
… models Signed-off-by: Amit Gruner <agruner@crusoe.ai>
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Signed-off-by: Amit Gruner <agruner@crusoe.ai>
Head branch was pushed to by a user without write access
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@ZJY0516 Fixed unit test missing new args |
vllm-project#42967) Signed-off-by: Amit Gruner <agruner@crusoe.ai> Co-authored-by: Amit Gruner <agruner@crusoe.ai> Co-authored-by: Jiangyun Zhu <riverclouds.zhu@qq.com>
Cherry-pick 62 bugfix/security PRs from upstream vllm-project/vllm main (2026-05-03 to 2026-06-17), covering scheduler, engine core, model runner, worker, attention, KV cache, compilation, and structured output fixes. Security (4): vllm-project#43286 vllm-project#44744 vllm-project#45118 vllm-project#45252 Bugfix (56): vllm-project#35536 vllm-project#36616 vllm-project#38895 vllm-project#39155 vllm-project#39324 vllm-project#39562 vllm-project#39805 vllm-project#40398 vllm-project#40726 Runner fix (2): vllm-project#44568 vllm-project#44603 Skipped: vllm-project#43781 (ROCm-specific, not applicable to Ascend NPU) Conflict resolutions: - Manual merge: vllm-project#43286 vllm-project#45118 vllm-project#42112 vllm-project#43160 vllm-project#43719 vllm-project#44560 - Upstream-preferred (-X theirs): vllm-project#43808 vllm-project#43988 vllm-project#42967 vllm-project#35536 vllm-project#45195 - Test files (--theirs): vllm-project#44744 vllm-project#41895 vllm-project#42040 vllm-project#41233 vllm-project#45345 vllm-project#43982 Co-authored-by: GitHub Copilot Signed-off-by: MingqiWang-coder <mingqiwang@hust.edu.cn>
vllm-project#42967) Signed-off-by: Amit Gruner <agruner@crusoe.ai> Co-authored-by: Amit Gruner <agruner@crusoe.ai> Co-authored-by: Jiangyun Zhu <riverclouds.zhu@qq.com>
… models
Purpose
Qwen3_5MoeForConditionalGeneration),_align_hybrid_block_size()enlargesblock_sizein the worker process (e.g. to 528 or 1056 tokens) but this update was never synced back to the parent APIServer process viaEngineCoreReadyResponsevllm:cache_config_infoto reportblock_size=16(stale default) instead of the actual runtime valueblock_sizetoEngineCoreReadyResponse, populates it incore.py, and syncs it in_apply_ready_response()usingmax()(correct for the DP multi-engine case)Fixes #42966
Test Plan
test_apply_ready_response_syncs_block_sizeintests/v1/engine/test_engine_core_client.pyTest Result
Essential Elements of an Effective PR Description Checklist
supported_models.mdandexamplesfor a new model.