[Bug]: Text PEFT LoRAs can silently no-op for wrapper models whose LM is mounted under language_model
![[Bug]: Text PEFT LoRAs can silently no-op for wrapper models whose LM is mounted under language_model](https://www.chat-gpts.plus/wp-content/uploads/2026/10/48019-e47a4f68-768x403.jpg)
在 vLLM 中给 Qwen3-VL 等“文本主干挂在 language_model 下”的多模态 wrapper 模型加载纯文本 PEFT LoRA 时,适配器可能静默失效(no-op),加载日志无明显报错但输出等同基座模型。优先排查该模型的 hf_to_vllm_mapper 是否缺少裸 mod
![[Bug] TieringOffloadingSpec fs-tier lookup succeeds but never triggers a promotion job (active_promotion_jobs stays 0)](https://www.chat-gpts.plus/wp-content/uploads/2026/10/61373-e203cc31-768x403.jpg)







