Re: 45 minute boot time with 2.6.4/2.6.6-mm5 kernel on 1.7GHz laptop

From: Matthew Denner
Date: Wed Jun 16 2004 - 04:08:24 EST


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
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