Ls-models-ls-island-issue-02-stuck-in-the-middle.79 · Quick

def process_island(input_data): wait_for(input_ready) wait_for(output_ack) # Both must arrive simultaneously -> deadlock risk transform(input_data)

Execute ls-trace --semaphores --island <ID> . If you see waiting_on: ACK_FROM_OUTPUT and holding: BLOCK_ON_INPUT , you have confirmed the classic Stuck-in-the-Middle deadlock. LS-Models-LS-Island-Issue-02-Stuck-in-the-Middle.79

The root cause was a silent promotion of the runtime to .79 during an automated patch cycle. The garbage collection lock (Cause 3.2) triggered because each Island’s work queue had been optimized to hold exactly 79 pallet IDs for maximum throughput. LS-Models-LS-Island-Issue-02-Stuck-in-the-Middle.79