From: Matthew Denner <matt@denner.demon.co.uk>
To: linux-kernel@vger.kernel.org
Subject: Re: 45 minute boot time with 2.6.4/2.6.6-mm5 kernel on 1.7GHz laptop
Date: Wed, 16 Jun 2004 10:06:14 +0100 [thread overview]
Message-ID: <40D00D86.4020001@denner.demon.co.uk> (raw)
In-Reply-To: <16591.29411.71049.949613@alkaid.it.uu.se>
Mikael Pettersson wrote:
> And here we see a, possibly the, problem.
> The BIOS gives us usable memory up to 0x3f7cffff, but the
> corresponding MTTR stops short at 0x3effffff, which leaves
> the 8MB in [0x3f000000,0x3f7cffff] usable but uncached.
>
> Any access to that range will be sloooow.
>
> This is unfortunately not an uncommon BIOS error. You may want to
> check for BIOS updates, or file a bug report with the HW vendor.
>
> Booting with "mem=1008M" appended to the kernel's options
> should fix the performance issue.
Mikael, thanks for all your help, this fixed the problem for me. It now
boots in less than a minute.
Matt
next prev parent reply other threads:[~2004-06-16 9:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-15 13:41 45 minute boot time with 2.6.4/2.6.6-mm5 kernel on 1.7GHz laptop Matthew Denner
2004-06-15 13:53 ` Mikael Pettersson
2004-06-15 18:45 ` Matthew Denner
2004-06-15 22:06 ` Mikael Pettersson
2004-06-16 9:06 ` Matthew Denner [this message]
2004-06-15 14:29 ` Marco Roeland
-- strict thread matches above, loose matches on Subject: below --
2004-06-15 15:09 Michael W. Salo
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