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From: john stultz <johnstul@us.ibm.com>
To: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Cc: "Mathias Fröhlich" <Mathias.Froehlich@web.de>,
	lkml <linux-kernel@vger.kernel.org>,
	"Mark Haverkamp" <markh@osdl.org>, "Dave Jones" <davej@suse.de>
Subject: Re: [RFC][PATCH] linux-2.6.0-test2_mtrr-race-fix_A0
Date: 06 Aug 2003 13:24:55 -0700	[thread overview]
Message-ID: <1060201495.10732.75.camel@cog.beaverton.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.53.0308061423080.7244@montezuma.mastecende.com>

On Wed, 2003-08-06 at 11:31, Zwane Mwaikambo wrote:
> The intel manual (10-36 Memory Cache Control - vol3) actually recommends 
> the following procedure I was a bit anal about explicitely setting and 
> clearing flags and used the specific TLB flush via cr3->reg->cr3. John 
> could you give this a spin on your afflicted systems?

I'm not quite sure I follow. Really I've never looked at the mtrr code
before, so forgive my daftness.  I just found a deadlock that was
locking my box caused by the synchronization between ipi_handler() and
set_mtrr() (which Mark's patch seems to properly fix). 

How does this change affect the deadlock? Is this just a separate issue?
thanks
-john



  reply	other threads:[~2003-08-06 20:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-06  8:52 Mathias Fröhlich
2003-08-06 17:15 ` john stultz
2003-08-06 18:05   ` Mark Haverkamp
2003-08-06 18:02     ` john stultz
2003-08-07 14:38       ` [PATCH] linux-2.6.0-test2_mtrr-race-fix_A0 Mark Haverkamp
2003-08-06 18:31   ` [RFC][PATCH] linux-2.6.0-test2_mtrr-race-fix_A0 Zwane Mwaikambo
2003-08-06 20:24     ` john stultz [this message]
2003-08-07  5:06       ` Zwane Mwaikambo
  -- strict thread matches above, loose matches on Subject: below --
2003-08-06  2:17 john stultz
2003-08-06 17:02 ` Mark Haverkamp

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