Chunk 13.1

In this chunk, the assistant overcame persistent Go build cache issues in Docker to deploy the unique job ID fix. Initial attempts using `--volumes-from` and `touch` failed to bust the cache, leaving the old `ps-porep-%d-%d` format string in the binary. The breakthrough came from switching to direct bind mounts (`-v`) for the modified source files, which forced a full recompile and produced a binary with the correct `ps-porep-%d-%d-%d` format string. Deployment required careful step-by-step execution—killing the process, verifying it stopped, then copying the binary—after the initial chained `kill` + `mv` command failed silently due to the running process locking the file. The new binary (`psfix3`) was confirmed running with matching hashes and the correct version string. The user then prompted a thorough audit of all other cuzk `RequestId` callers (Snap, Window/Winning PoSt, normal PoRep). The assistant confirmed only the proofshare PoRep path was vulnerable because it used a hardcoded bench sector (miner=1000, sector=1) for all concurrent challenges, while all other callers already had unique identifiers (randomness, partition IDs, or real sector identities). Following the user's guidance, the assistant consolidated the proofshare fixes (deadlock, job_id collision, queue cleanup) with the earlier cuzk self-check enforcement and test infrastructure changes into a single amended commit, then built and pushed the final Docker image (`theuser/curio-cuzk:latest`). The overarching themes are the friction of patching GPU-proving systems without full image rebuilds, the critical importance of unique identifiers in concurrent distributed pipelines, and the operational rigor required for production deployments. The assistant demonstrated systematic root-cause analysis, proactive vulnerability auditing across the entire codebase, and meticulous build/deploy verification—including repeatedly grepping binary strings and checking hashes—to ensure the fix was genuinely compiled in and correctly deployed.

From Build Cache to Docker Push: The Full Arc of a Production Fix in a Distributed GPU Proving System 2111 words

Message Articles