From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jakob Oestergaard <jakob@unthought.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Disk (block) write strangeness
Date: 05 Aug 2002 21:17:12 +0100 [thread overview]
Message-ID: <1028578632.18156.71.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <20020805184921.GC2671@unthought.net>
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.
next prev parent reply other threads:[~2002-08-05 18:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-05 18:49 Jakob Oestergaard
2002-08-05 20:17 ` Alan Cox [this message]
2002-08-05 19:07 ` Jakob Oestergaard
2002-08-06 14:44 ` Kasper Dupont
2002-08-07 8:14 ` Helge Hafting
2002-08-07 11:43 ` Itai Nahshon
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