macOS flushes the NVMe cache on kernel panic. Probably not on lockups though. A watchdog reset won't flush NVMe. Not sure if they have a special pre-fire path

macOS flushes the NVMe cache on kernel panic. Probably not on lockups though. A watchdog reset won't flush NVMe. Not sure if they have a special pre-fire path that tries a last ditch NVMe flush...