linux-kernel - Re: Mysterious CFQ crash and RCU

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Message-ID: <1306314848.9059.17.camel@t41.thuisdomein>
Date:	Wed, 25 May 2011 11:13:52 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Jens Axboe <jaxboe@...ionio.com>
Cc:	"paulmck@...ux.vnet.ibm.com" <paulmck@...ux.vnet.ibm.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: Mysterious CFQ crash and RCU

On Wed, 2011-05-25 at 10:46 +0200, Jens Axboe wrote:
> Are you easily able to test a patch out?

Yes. 

> Having a
> test case on your machine that is as easily reproducible as it seems to
> be, would be a great place to test ideas out.

Maybe I should now also try to build CFQ (and the other schedulers, I
guess) as a module (instead of Fedora's default of builtin). That might
make it both easier and quicker to iterate over a number of ideas.

Does using the schedulers as modules require any handholding (on your
part, I'm afraid) or is it not really different from using any other
kernel module?


Paul Bolle

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