FYI: Bug 513221 - ext4 filesystem corruption and data loss https://bugzilla.redhat.com/show_bug.cgi?id=513221 is a bit troubling. Unfortunately it has a lot of false-starts in the bug comments so it looks a little convoluted and hard to follow. But the upshot is, he seems to swaths of null bytes in his mail files, on 4k boundaries, not correlated with extent boundaries necessarily. And he's not had crashes or power losses, he says. Not a lot to go on yet, but something to keep an eye on. -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html