Message-ID: <542C6D86.70902@redhat.com>
Date: Wed, 01 Oct 2014 17:09:26 -0400
From: Rik van Riel <riel@redhat.com>
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To: Linus Torvalds <torvalds@linux-foundation.org>,
        Hugh Dickins <hughd@google.com>
CC: Dave Jones <davej@redhat.com>, Al Viro <viro@zeniv.linux.org.uk>,
        Linux Kernel <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@redhat.com>, Michel Lespinasse <walken@google.com>,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Mel Gorman <mgorman@suse.de>, Sasha Levin <sasha.levin@oracle.com>
Subject: Re: pipe/page fault oddness.
References: <20140930033327.GA14558@redhat.com>	<CA+55aFwmo7ot=h7tpUYhSC49CHKBK2KfGaDJ_fwB0=VNqvTPBQ@mail.gmail.com>	<20140930043309.GA16196@redhat.com>	<CA+55aFwxdOBKHwwp7Zq1k19mHCyHYmYqigCVt59AtB-P7Zva1w@mail.gmail.com>	<CA+55aFynr-Abo_JY1=GGOf9e2tjJvexbX2kVTgD0bkq7BXacJw@mail.gmail.com>	<20140930160510.GA15903@redhat.com>	<CA+55aFzTEXxxh_4_BwVydw1UgCu-NRF95OrzVhj=cievXFTJTg@mail.gmail.com>	<20140930162201.GC15903@redhat.com>	<20140930164047.GA18354@redhat.com>	<CA+55aFzKgJ41Mp=Ub8Kq_uFDHYzkHo3zhO3MHOJo_O2iExdYmQ@mail.gmail.com>	<20140930182059.GA24431@redhat.com>	<CA+55aFzfvXHd2LUhQ5OiV1H1Oq2y3PL8hX_Hrv-C907PyDNugA@mail.gmail.com>	<alpine.LSU.2.11.1410010031070.1902@eggly.anvils>	<CA+55aFyJ09+iv2HX1nfAaDi0-7=L3KxKi11CACbM8K_Coo6kzg@mail.gmail.com>	<CA+55aFzHgemAV7igyG=0pmctTaV7cZfO4fdqukhrCc8VXTrZuw@mail.gmail.com> <CA+55aFzisEwtcBA93Xo74RM-6X9V=_go=YhN7eFJOHLeHs3HEQ@mail.gmail.com>
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On 10/01/2014 04:20 PM, Linus Torvalds wrote:

> Now, I'll be honest: this patch *migth* just work, but I expect it to
> have some stupid problem. It compiles. I haven't even dared boot it,
> much less try any numa benchmarks that woudln't show anything sane on
> my machine anyway.
> 
> So I'm really sending this patch out in the hope that it will get
> comments, fixup and possibly even testing by people who actually know
> the NUMA balancing code. Rik?  Anybody?

I'll add it to the list. No guarantees I'll be able to get
to it before Linux Con / KVM Forum though. I have a bit of
a backlog to get through this coming week...

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