Date: Tue, 17 Nov 2009 09:34:56 -0500
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
       Pavel Machek <pavel@ucw.cz>, "H. Peter Anvin" <hpa@zytor.com>,
       Matteo Croce <technoboy85@gmail.com>, Ingo Molnar <mingo@elte.hu>,
       linux-kernel@vger.kernel.org
Subject: Re: i686 quirk for AMD Geode
Message-ID: <20091117143456.GF15157@caffeine.csclub.uwaterloo.ca>
References: <20091109201608.GD15159@caffeine.csclub.uwaterloo.ca> <4AF886D4.1080108@zytor.com> <20091109212333.GE15159@caffeine.csclub.uwaterloo.ca> <20091112121805.GF1394@ucw.cz> <20091113162301.GU15157@caffeine.csclub.uwaterloo.ca> <20091113165730.0b9b2676@lxorguk.ukuu.org.uk> <20091113192412.GY15157@caffeine.csclub.uwaterloo.ca> <20091113212148.5cb829d4@lxorguk.ukuu.org.uk> <20091116175006.GA15157@caffeine.csclub.uwaterloo.ca> <20091117115929.4ba23c49@lxorguk.ukuu.org.uk>
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From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
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On Tue, Nov 17, 2009 at 11:59:29AM +0000, Alan Cox wrote:
> > Trying rdmsr from msr-tools 1.2 gives me:
> > 
> > # ./rdmsr -x 0x00001810
> > rdmsr: CPU 0 cannot read MSR 0x00001810
> > 
> > Hmm, now what?
> 
> Beats me - I thought the region registers were read/write.

Actually it seems I can't read any MSRs on it.

Using the same kernel, same msr module, same rdmsr on a Geode LX system
works fine.  I can read MSRs no problem.  Seems the msr module isn't
working on the Geode SC1200 (and hence possibly the GX1).

-- 
Len Sorensen
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