As pointed out later in the thread, the code in question is checking for dates before 1975, and is actually likely triggering on a zeroed-out superblock in a fi

As pointed out later in the thread, the code in question is checking for dates before 1975, and is actually likely triggering on a zeroed-out superblock in a filesystem somewhere. More interesting, and not noticed here, is the discussion in that thread about how Sun mapped SCSI IDs around.