Re: Disk (block) write strangeness

From: Alan Cox (
Date: Mon Aug 05 2002 - 15:17:12 EST

On Mon, 2002-08-05 at 19:49, Jakob Oestergaard wrote:
> *) Either the disk writes backwards (no I don't believe that)
> *) Or the kernel is writing 256 B blocks (AFAIK it can't)
> *) The disk has some internal magic that cause a power-loss during
> a full block write to leave the first half of the block intact with
> old data, and update the second half of a block correctly with new
> data. (And I don't believe that either).

You forgot to add

*) or the disk internal logic bears no resemblance to the antiquated API
it fakes for the convenience of interface hardware and software

Linux also won't neccessarily do write outs in order.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Wed Aug 07 2002 - 22:00:28 EST