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Guided Generation of Linux Kernel Semantic Patches with Small Local Language Models

Story 4, from arXiv

Researchers show that small local language models can generate Linux kernel semantic patches with guidance, outperforming direct prompting and achieving high precision.

Key points

  • The study uses small local models to generate Coccinelle semantic patches for Linux kernel API migrations.
  • A framework decomposes training examples into change variants, with feedback from applying rules to examples.
  • A compile critic ensures generated rules compile and match human fixes.
  • Qwen2.5-Coder solves 35.3 conversions on average, while Spinfer solves 41 and a frontier LLM agent 66.
  • Local models produce more precise rules than general-purpose models, even with guidance.
  • All code, prompts, and results are publicly released.

Why it matters

This work shows how small local models can automate tedious kernel migration tasks, improving efficiency and precision over direct prompting. It could reduce manual effort in maintaining large codebases.

Counterpoint

The local model solves fewer conversions than Spinfer, suggesting that specialized tools may still outperform general-purpose models in this domain.

Sources

This summary was written by a language model and may contain errors. Read the original for the full story.

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