llama.cpp Users Report Infinite 'lalala' Loops with Gemma Models

Geritas · reddit · 2026-10-07

A Reddit user reports that for the past 3-4 days, llama.cpp has been producing broken output with Gemma4 31b: the model emits 'lalala' and loops indefinitely mid-conversation — a word that never appears in the scenario. With a screenshot attached, the user suspects a recent llama.cpp change and is looking for similar cases and possible causes.

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