From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stanislav Meduna <stano@meduna.org>
Subject: Re: [PATCH] mm: fix up a spurious page fault whenever it happens
Date: Wed, 22 May 2013 20:04:32 +0200
Message-ID: <519D08B0.8050707@meduna.org>
References: <5195ED8B.7060002@meduna.org> <1369183168.6828.168.camel@gandalf.local.home> <519CBB30.3060200@redhat.com> <CA+55aFxMqvDvcVtLW-yD2PuU_CcjPOC30Zk07Kuk6S25WCzbHQ@mail.gmail.com> <20130522134111.33a695c5@cuia.bos.redhat.com>
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Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Steven Rostedt <rostedt@goodmis.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>
To: Rik van Riel <riel@redhat.com>
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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.

Thank
-- 
                                     Stano