linux-kernel - Re: Bootup time regression from 2.6.27 to 2.6.28-rc3+

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Message-ID: <20081109105159.GA5867@joi>
Date:	Sun, 9 Nov 2008 11:52:02 +0100
From:	Marcin Slusarz <marcin.slusarz@...il.com>
To:	Lukas Hejtmanek <xhejtman@....muni.cz>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Bootup time regression from 2.6.27 to 2.6.28-rc3+

On Sun, Nov 09, 2008 at 09:56:49AM +0100, Lukas Hejtmanek wrote:
> On Sat, Nov 08, 2008 at 08:55:32PM -0800, Arjan van de Ven wrote:
> > do you have RAID autoprobing enabled ?
> > raid autoprobing requires that all devices have been discovered,
> > to avoid getting partial RAID arrays and other nasty things...
> > 
> > it's CONFIG_MD_AUTODETECT
> 
> # CONFIG_MD is not set
> 
> I do not have MD at all.
> 
> Moreover, I discovered that I have to hit a keyboard several times during the
> boot to boot up.
> 
> The delay depends on keyboard hit. If I do not touch the keyboard, it waits
> forever.. Looks like something needs an interrupt..

Do you have NO_HZ enabled?
(Cc'ing Thomas)
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