a6c7d1d9c6
Correct the P3-A runtime-validation note and matrix row: the intermittent apparent boot freeze is startup latency under load (guest clock ~10-15x slower than wall), not a deadlock or an xhcid bug. A short 50-60s test timeout occasionally cuts the spawn+enumerate sequence, producing a 'frozen' log while the guest is still running — proven by 18 boots (one apparent short-timeout loss), a 12s log-quiet 'freeze' the guest resumed from, and every >=180s run enumerating fully. No fix required beyond adequate test timeouts; no speculative kernel-deadlock fix was implemented.