[resending, after fixing the Cc: list; somebody trimmed it earlier] Jamie Lokier wrote: ..
I don't remember - does TRIM guarantee the blocks read zeros afterwards?
.. No, it doesn't. A drive can optionally support "deterministic TRIM", whereby it will return consistent data for any given trimmed sector afterwards, but that doesn't mean zeros. -ml -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html