From: Dave Jones <davej@redhat.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Shinichi Kudo <randomshinichi4869@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: VIA C3 (Ezra C5C) Crashes with longhaul Freq scaling
Date: Mon, 6 Mar 2006 14:58:18 -0500 [thread overview]
Message-ID: <20060306195818.GF15971@redhat.com> (raw)
In-Reply-To: <1141674250.26548.1.camel@localhost.localdomain>
On Mon, Mar 06, 2006 at 07:44:10PM +0000, Alan Cox wrote:
> On Sad, 2006-03-04 at 23:38 -0500, Dave Jones wrote:
> > There's an ugly patch below that was submitted, which fixes it for
> > some people, but as it's a) ide specific, and b) completely the
> > wrong place to do this and c) racy, I never merged it to mainline.
>
> If I understand the documentation correctly you simply need to disable
> the master bit on the root bridge during the transition and the PCI
> transactions will be stalled, providing you don't take too long about
> it.
tried it, didn't change anything.
The current code goes one step further, and disables it for all devices.
Still no joy. See the do_powersaver() function in arch/i386/kernel/cpu/cpufreq/longhaul.c
Dave
--
http://www.codemonkey.org.uk
next prev parent reply other threads:[~2006-03-06 19:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-04 14:46 VIA C3 (Ezra C5C) Crashes with longhaul Freq scaling Shinichi Kudo
2006-03-05 4:38 ` Dave Jones
2006-03-06 19:44 ` Alan Cox
2006-03-06 19:58 ` Dave Jones [this message]
2006-03-09 13:58 ` Ian Abbott
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