linux-kernel - Re: How to debug kernel startup time?

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Message-ID: <20090329085119.0c93fb21@infradead.org>
Date:	Sun, 29 Mar 2009 08:51:19 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Corrado Zoccolo <czoccolo@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: How to debug kernel startup time?

On Sun, 29 Mar 2009 17:40:10 +0200
Corrado Zoccolo <czoccolo@...il.com> wrote:

> Hi,
> I'm seeing around 2 s "lost" during kernel boot, that are not
> accounted for any init call (excerpt of dmesg with initcall_debug
> follows, kernel is 2.6.29).
> What's the suggested way to investigate such problems?

I take it you don't have an initrd ?

If so I know what you are hitting; I have a patch to solve it but it's
a bit convoluted and not ready for mainline.... let me know if you want
to try it, I suspect it'll solve your issue ;)
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