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Date: Fri, 16 May 2014 00:19:14 +0400
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        Sasha Levin <sasha.levin@oracle.com>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        Dave Jones <davej@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
        Pavel Emelyanov <xemul@parallels.com>
Subject: Re: mm: NULL ptr deref handling mmaping of special mappings
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On Thu, May 15, 2014 at 12:59:04PM -0700, Andy Lutomirski wrote:
> >>
> >> What version and bitness is this?
> >
> > x86-64, 3.15-rc5
> 
> Aha.  Give tip/x86/vdso or -next a try or boot a 32-bit 3.15-rc kernel
> and you'll see it.

I see what you mean. We're rather targeting on bare x86-64 at the moment
but compat mode is needed as well (not yet implemented though). I'll take
a precise look into this area. Thanks!