linux-kernel - Re: mtrr failure, 3.1-rc1

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Date:	Thu, 25 Aug 2011 17:10:37 -0500
From:	Bob Tracy <rct@...rkin.frus.com>
To:	Anders Eriksson <aeriksson@...tmail.fm>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: mtrr failure, 3.1-rc1

On Thu, Aug 25, 2011 at 09:03:35AM +0200, Anders Eriksson wrote:
> (mtrr issues)

Similar MTRR issue here with a K6-III/450, which I noticed when the X11
server was no longer able to allocate/configure a MTRR.  "cat /proc/mtrr"
shows nothing configured regardless of whether the X11 server is running.
I only see a diagnostic message to the effect of the MTRR not existing
when X11 exits.

Possibly significant: prior 3.X kernel versions would cause the X11
server to exit with a corrupted display after about 3-5 invocations.
Machine was otherwise usable, but had to reboot remotely to recover the
console display.  The "no MTRR" issue in 3.1-rc1 has thus far meant no
display corruption on X11 server exit: have run "startx" at least 10
times since booting 3.1-rc1.

-- 
------------------------------------------------------------------------
Bob Tracy          |  "Every normal man must be tempted at times to spit
rct@...s.com       |   upon his hands, hoist the black flag, and begin
                   |   slitting throats."	-- H.L. Mencken
------------------------------------------------------------------------
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