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