This message is from the T13 list server.
On Tue, Jun 17 2003, Constantine Sapuntzakis wrote: > This message is from the T13 list server. > > > All the operating systems I've ever seen have locks to ensure that you > don't issue multiple I/Os simultaneously to the same range of sectors on > a disk. For various types of raw/direct-io, Linux will quite happily issue overlapping/identical reads/writes simultaneously. When you don't have a cachen in-between, there's typically nothing preventing anything like that. I'd be surprised if other OS didn't behave similarly. At least with submitting raw commands this could trivially happen. -- Jens Axboe
