From: Matthew Garrett <mjg@redhat.com>
To: Harald Welte <HaraldWelte@viatech.com>
Cc: "Michael S. Zick" <lkml@morethan.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Duane Griffin <duaneg@dghda.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Dave Jones <davej@redhat.com>
Subject: Re: [PATCH 2/2] CPUFREQ: Mark e_powersaver driver as EXPERIMENTAL and DANGEROUS
Date: Mon, 8 Jun 2009 13:08:46 +0100 [thread overview]
Message-ID: <20090608120846.GA13328@srcf.ucam.org> (raw)
In-Reply-To: <20090608102936.GQ4106@prithivi.gnumonks.org>
On Mon, Jun 08, 2009 at 06:29:36PM +0800, Harald Welte wrote:
> The e_powersaver driver for VIA's C7 CPU's needs to be marked as
> DANGEROUS as it configures the CPU to power states that are out
> of specification.
>
> According to Centaur, all systems with C7 and Nano CPU's support
> the ACPI p-state method. Thus, the acpi-cpufreq driver should
> be used instead.
Do we know if vendors are actually shipping with the appropriate BIOS
tables? The number of people using e_powersaver seems to be suspiciously
large, though perhaps that's just because the help text implied it was
the right choice for C7.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2009-06-08 12:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-08 10:29 [PATCH 2/2] CPUFREQ: Mark e_powersaver driver as EXPERIMENTAL and DANGEROUS Harald Welte
2009-06-08 12:08 ` Matthew Garrett [this message]
2009-06-08 13:00 ` Michael S. Zick
2009-06-08 18:13 ` Harald Welte
2009-06-08 18:38 ` Michael S. Zick
2009-06-08 13:06 ` Michael S. Zick
2009-06-08 13:15 ` Michael S. Zick
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