From: Alexander Lam <lambchop468@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: mtrr cleanup not doing anything on 2.6.33-rc7
Date: Wed, 10 Feb 2010 20:48:49 -0500 [thread overview]
Message-ID: <dfb03c971002101748i39d7de0bw83634c40f058de0f@mail.gmail.com> (raw)
In-Reply-To: <dfb03c971002101202i37f4a243jc6bfb44bc853cb5d@mail.gmail.com>
On Wed, Feb 10, 2010 at 3:02 PM, Alexander Lam <lambchop468@gmail.com> wrote:
>
> My kernel config has the following:
> CONFIG_MTRR=y
> CONFIG_MTRR_SANITIZER=y
> CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
> CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
>
> With previous kernels, dmesg would show that the sanitizer was indeed
> cleaning up the mtrrs [1]
>
> but now, with 2.6.33-rc7 there is no indication that this is occuring,
For those who run across this later,
Found out that commit 508d85c2c6bc8cba53d2a54d9a306ad64a0a80bf,
x86: When cleaning MTRRs, do not fold WP into UC
causes mtrr cleanup not to run on my machine.
Probably not worth fixing because the i915 error message is harmless.
next prev parent reply other threads:[~2010-02-11 1:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-10 20:02 Alexander Lam
2010-02-11 1:48 ` Alexander Lam [this message]
2010-02-11 10:10 ` Carlos R. Mafra
2010-02-11 14:56 ` H. Peter Anvin
2010-02-11 17:15 ` Carlos R. Mafra
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