Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
From:   Jue Wang <juew@google.com>
Date:   Mon, 19 Apr 2021 18:49:15 -0700
Message-ID: <CAPcxDJ6OAd=qdfxoTQ4cp5vQ6_+phWqX8gJfec48XyAZybBpsw@mail.gmail.com>
Subject: Re: [PATCH v1 3/3] mm,hwpoison: add kill_accessing_process() to find
 error virtual address
To:     nao.horiguchi@gmail.com, "Luck, Tony" <tony.luck@intel.com>
Cc:     akpm@linux-foundation.org, bp@alien8.de, david@redhat.com,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org, luto@kernel.org,
        naoya.horiguchi@nec.com, osalvador@suse.de, yaoaili@kingsoft.com
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Tue, 13 Apr 2021 07:43:20 +0900, Naoya Horiguchi wrote:
...
> + * This function is intended to handle "Action Required" MCEs on already
> + * hardware poisoned pages. They could happen, for example, when
> + * memory_failure() failed to unmap the error page at the first call, or
> + * when multiple Action Optional MCE events races on different CPUs with
> + * Local MCE enabled.

+Tony Luck

Hey Tony, I thought SRAO MCEs are broadcasted to all cores in the system
as they come without an execution context, is it correct?

If Yes, Naoya, I think we might want to remove the comments about the
"multiple Action Optional MCE racing" part.

Best,
-Jue