From: Jens Axboe <axboe@suse.de>
To: "Steven A. DuChene" <sduchene@mindspring.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: all three IO Schedulers turned on in 2.6.10-rc3-mm1 ???
Date: Fri, 17 Dec 2004 08:56:19 +0100 [thread overview]
Message-ID: <20041217075618.GH3045@suse.de> (raw)
In-Reply-To: <20041216141018.D927@lapsony.sc04.org>
On Thu, Dec 16 2004, Steven A. DuChene wrote:
> I downloaded and built the 2.6.10-rc3-mm1 kernel and I noticed while
> configuring it that in the Device Drivers > Block devices > IO Schedulers
> area that by default all three IO Schedulers are turned on. Is this a
> normal condition or is there only supposed to be one of these turned on?
They all default to on. There's actually a fourth that is also on, but
you cannot turn that off (noop). It's there if you disable the other
three, in lack of a better way to express that in Kconfig.
> The reason I am concerned about this is that ever since I have booted
> into this kernel I have a lot of things failing and when they fail
> they return a message like "Inappropriate ioctl for device"
The io schedulers don't provide any ioctls, must be something else. I
suggest you strace whatever program is throwing these errors and find
out what is going wrong.
--
Jens Axboe
prev parent reply other threads:[~2004-12-17 7:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-16 19:10 all three IO Schedulers turned on in 2.6.10-rc3-mm1 ??? Steven A. DuChene
2004-12-17 7:35 ` Peter Zijlstra
2004-12-17 7:56 ` Jens Axboe [this message]
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