Keep native/mapped allocation policy intact; observe aligned Vulkan host allocations and texture/queue-idle lifetimes with allocation-free failure logging and periodic summaries. Snapshot driver archives locally for an attributable diagnostic link.
Verified: PS5_MEMORY_DIAGNOSTICS=1 bash tools/verify.sh; final bash tools/verify.sh format unit (68 tests); python3 tools/check-memory-diagnostics.py. Evidence: evidence/xmb-memory-diagnostic/{capture,expectation,inspection}.json. Console validation pending owner intervention; no upload or launch and no crash fix claimed.
