Merged upstream fixes, explained: the puzzling symptom, the mechanism, the fix, and why it matters.
A stale hardware gate locked NVIDIA's GB10 (DGX Spark) out of SGLang's fast sparse-decode kernel and crashed the server on startup. The fix is one line.
Read the writeup →A cancellation race on a shared EVM made eth_estimateGas non-deterministic. A leftover goroutine, cancelling the wrong request, quietly turned a failure into a success.