linux-kernel - Re: [PATCH] mm: fix up a spurious page fault whenever it happens

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Message-ID: <1369246316.6828.176.camel@gandalf.local.home>
Date:	Wed, 22 May 2013 14:11:56 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Stanislav Meduna <stano@...una.org>
Cc:	Rik van Riel <riel@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"linux-rt-users@...r.kernel.org" <linux-rt-users@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	the arch/x86 maintainers <x86@...nel.org>,
	Hai Huang <hhuang@...hat.com>
Subject: Re: [PATCH] mm: fix up a spurious page fault whenever it happens

On Wed, 2013-05-22 at 20:04 +0200, Stanislav Meduna wrote:
> On 22.05.2013 19:41, Rik van Riel wrote:
> 
> >> I think you should also remove the
> >>
> >>         if (flags & FAULT_FLAG_WRITE)
> 
> Done
> 
> >>> Can you test the attached patch?
> 
> Nope. Fails with the same symptoms, min_flt skyrockets,
> the throttler activates and after 2 seconds all is well
> again.
> 
> This is on Geode LX, I don't have the Celeron M at the hand now.
> 

Did you apply both patches? Without the first one, this one is
meaningless.

-- Steve


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