Re: 2.6.26-rc9 load problem

From: Heikki Orsila
Date: Sun Jul 06 2008 - 11:53:02 EST


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@xxxxxxxxxx> 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@xxxxxx
http://www.iki.fi/shd
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