[Bug]: Triton block quantized (e.g. MXFP4) MoE kernels producing NaNs due to OOB reads on scale values
![[Bug]: Triton block quantized (e.g. MXFP4) MoE kernels producing NaNs due to OOB reads on scale values](https://www.chat-gpts.plus/wp-content/uploads/2026/07/47303-d9edb114-768x403.jpg)
用户在 vLLM(v0.24.0 及 main 分支)上运行 MXFP4(例如 GPT-OSS 20B)MoE 模型,并在 Hopper 架构 GPU(H100、B200)上使用 Triton 默认内核时触发。问题在启用约束解码(constrained decoding)或其它内存分配操作(如位掩码








