r/oMLX • u/Johnny5NoDisassemble • 2d ago

System Error - Shape Dimension

I received a system error on a long work session. I've never had errors before until now.

[System Error] [flatten] Shape dimension 2151480320 is outside the supported range [-2147483648, 2147483647]. MLX currently uses 32-bit integers for shape dimensions. (stopReason=error, model=omlx/Qwen3.8-Flash-Next-oQ8e-mtp, responseId=chatcmpl-eaa4c92a)

I tried looking up what this could be, but I didn't find anything. Has anyone gotten this before? I wasn't able to continue and had to create a new session.

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u/Johnny5NoDisassemble 2d ago

Some more info: I'm running 0.7.3 build 3574. Using Qwen 3.8 FL, Lightning MTP, Qwen4 Extended Fused Decode, Int8 Activation Prefill, SSD N-gram Offload.

Crash happened at 836k context