Date: Tue, 17 May 2011 09:38:47 -0700
From: Andi Kleen <ak@linux.intel.com>
To: Don Zickus <dzickus@redhat.com>
Cc: Huang Ying <ying.huang@intel.com>, Cyrill Gorcunov <gorcunov@gmail.com>,
        huang ying <huang.ying.caritas@gmail.com>, Ingo Molnar <mingo@elte.hu>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Andi Kleen <andi@firstfloor.org>,
        Robert Richter <robert.richter@amd.com>
Subject: Re: [RFC] x86, NMI, Treat unknown NMI as hardware error
Message-ID: <20110517163847.GF24805@tassilo.jf.intel.com>
References: <1305275018-20596-1-git-send-email-ying.huang@intel.com>
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 <4DCE3493.4090404@gmail.com>
 <BANLkTin1pvdnXtw53MhwfCsEQpsu0TUUmg@mail.gmail.com>
 <4DCF7413.4070704@gmail.com>
 <4DD07959.4030608@intel.com>
 <20110516190310.GH31888@redhat.com>
 <4DD20A2F.604@intel.com>
 <20110517142427.GL31888@redhat.com>
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> Can we agree on this, that if an OEM implemented HEST properly such that a
> hardware error happens it will generate a GHES record.  The subsequent NMI

Apparently there are some (rare) corner cases where it's hard/impossible
to do. So in those cases you will see an NMI without record.

In the "normal" error case you will a GHES record on NMI.

-Andi
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