From: Benjamin LaHaise <bcrl@kvack.org>
To: Karthik Sarangan <karthiks@cdac.in>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: AIO!!
Date: Mon, 10 Oct 2005 12:08:56 -0400 [thread overview]
Message-ID: <20051010160856.GI13986@kvack.org> (raw)
In-Reply-To: <434A6EFC.4010100@cdac.in>
On Mon, Oct 10, 2005 at 07:09:08PM +0530, Karthik Sarangan wrote:
> I wrote a small program to do Async IO from a raw disk
> open has no problems.
> My program gets stuck up at aio_read(paio);
> !!WHY!!
O_DIRECT buffers must be aligned on block sized boundaries (minimum 512
bytes). Check the actual return code from the aiocb and you'll find that
it is likely -EINVAL, no -EINPROGRESS. See the man page for
posix_memalign() to properly align the pointer.
-ben
next prev parent reply other threads:[~2005-10-10 16:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-10 13:39 AIO!! Karthik Sarangan
2005-10-10 16:08 ` Benjamin LaHaise [this message]
2005-10-11 5:04 ` AIO!! Karthik Sarangan
2005-10-11 9:25 ` AIO!! Denis Vlasenko
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