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Date:      Mon, 15 Dec 1997 11:40:21 +1030
From:      Mike Smith <mike@smith.net.au>
To:        Karl Pielorz <kpielorz@caladan.tdx.co.uk>
Cc:        hackers@freebsd.org
Subject:   Re: /kernel 'calcru' negative offset? 
Message-ID:  <199712150110.LAA00251@word.smith.net.au>
In-Reply-To: Your message of "Sun, 14 Dec 1997 23:27:16 -0000." <Pine.BSF.3.96.971214232428.477A-100000@caladan.tdx.co.uk> 

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> I've posted this in the questions list - but not gotten any replies... I'm
> running FreeBSD 2.2.5-Release on a laptop (one that sadly doesn't work
> with the PAO laptop support patches / drivers etc.)

Can you be more specific (not here, but on the -mobile list) about your 
problems?  We may not be able to help, but without knowing we certainly 
can't.

> When the system boots - the kernel thinks the CPU is only 50Mhz (instead
> of 100Mhz) - It's an Intel Pentium 100. This is when running the laptop in
> 'brain dead' mode, i.e. no power saving, no spinning down of the harddrive
> etc. - and no APM idleing the CPU when it thinks it's not busy...

What mode is the unit in?  Some systems (eg. this Toshiba) save the 
current power mode across reboots, so if I shut it down having hotkeyed 
into Low, when I bring it back up, it will still be in Low.

> I've fiddled around with the kernel config - in particular the
> CLK_CALIBRATION type config options - all to no avail...
> 
> Is there a way of forcing the kernel to beleive the CPU is 100Mhz? -
> intead of 50Mhz?

If the kernel measures the clock as being 50MHz, then either your 
realtime clock is broken, or the CPU *is* running at 50MHz.

mike





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