linux-kernel - Re: 2.6.26-rc9 load problem

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Message-ID: <20080706155245.GB4379@zakalwe.fi>
Date:	Sun, 6 Jul 2008 18:52:45 +0300
From:	Heikki Orsila <shdl@...alwe.fi>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.26-rc9 load problem

On Sun, Jul 06, 2008 at 07:37:26AM -0700, Arjan van de Ven wrote:
> On Sun, 6 Jul 2008 17:25:16 +0300
> Heikki Orsila <shdl@...alwe.fi> wrote:
> 
> > Testing 2.6.26-rc9. Doing:
> > 
> > 	dd if=/dev/hda of=/dev/null bs=4096
> > 
> > causes the operating system to feel very unresponsible.
> > Even the key repeat interval at tty1 is unpredictable.
> 
> Hi,
> 
> do you have an idea which version you tried last which didn't show this
> behavior?

Actually, this was the first vanilla kernel I tried on _this_ 
workstation. The earlier kernel came from Debian (testing).

It turns out I screwed up the kernel config which caused this. VIA PATA 
driver was not used, but a generic IDE chipset driver :/ Probably it 
didn't use DMA so the system became very sluggish.

The system is fine now. Thanks for your help, anyway.

-- 
Heikki Orsila
heikki.orsila@....fi
http://www.iki.fi/shd
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