One CPU Atomic Instruction, One Packaging Infinite Loop: The Story of the Lost Update on LA664

Jie Ge documents a Loongson LA664 erratum where an atomic instruction can lose updates, how it surfaced as an infinite packaging loop, the root cause analysis, and what it means for correctness on that CPU.

Research · Hardware · Systems Programming · Debugging · Engineering

The Function That Beat the Model: What We Measured When We Removed the LLMs

SPERIXLABS replaced a 1B-parameter local model that validated sensitive-data detections with a 40-line Python function, then published the four experiments showing where classical checks beat the LLM on accuracy and latency.

Research · LLMs · Security · Benchmarks · Engineering