From: Andrew Morton <akpm@osdl.org>
To: RaTao <ratao@toxyn.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: linux-2.6.0-linux-kernel@vger.kernel.orgtest2-mm4 O_DIRECT
Date: Wed, 6 Aug 2003 12:17:59 -0700 [thread overview]
Message-ID: <20030806121759.50a48626.akpm@osdl.org> (raw)
In-Reply-To: <3F30CFC1.1090205@toxyn.org>
RaTao <ratao@toxyn.org> wrote:
>
>
> Hi!
>
> While testing linux-2.6.0-test2-mm4 I noticed two things:
>
> - O_DIRECT doesn't work, at least in ext3, with block size different
> from filesystem's blocksize. (It doesn't work with 512 bs, at least).
> This works in 2.6.0-test2, from 512 to 4096.
It works OK here.
> - vmstat doesn't show bi/bo for O_DIRECT's disk access.
It does here.
I'd be suspecting your test app: is it checking the return value of all
syscalls?
next prev parent reply other threads:[~2003-08-06 19:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-06 9:52 RaTao
2003-08-06 19:17 ` Andrew Morton [this message]
2003-08-06 21:32 ` linux-2.6.0-test2-mm4 O_DIRECT RaTao
2003-08-06 22:36 ` Daniel McNeil
2003-08-07 1:55 ` RaTao
2003-08-07 2:18 ` 2.6.0-test2, compact flash, IDE, and kobject errors J.C. Wren
2003-08-07 2:38 ` Bartlomiej Zolnierkiewicz
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