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CUDA_ERROR_ILLEGAL_ADDRESS in deepgemm::tf32_hc_prenorm_gemm #2

Description

@mkrech

Hi gitcommit90,
thank you for your work, it works for me almost. I get following Error.

GB10/SM 12.1) — crashes entire vLLM server after single chat completion

Summary

After loading GLM-5.3-Flash EXL3 2.05 bpw with DFlash2 speculative decoding on a single NVIDIA DGX Spark (GB10, SM 12.1, ARM64), the first POST /v1/chat/completions request succeeds partially but then crashes the EngineCore process with:

RuntimeError: CUDA driver error (...deepgemm-src/.../jit/handle.hpp:154): 
700 (CUDA_ERROR_ILLEGAL_ADDRESS, an illegal memory access was encountered)

The crash occurs in vllm.utils.deep_gemm.tf32_hc_prenorm_gemm, called from the GLM-5.3 HC pre-normalization fused MoE layer (mhc_pre_tilelang). The EngineCore process terminates and the API server shuts down entirely — every subsequent request returns 500 until restart.

I try it in opencode and cline. The error appears after reading md files.

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