From: "Luck, Tony" <tony.luck@intel.com>
To: Jue Wang <juew@google.com>
Cc: nao.horiguchi@gmail.com, 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
Subject: Re: [PATCH v1 3/3] mm,hwpoison: add kill_accessing_process() to find error virtual address
Date: Tue, 20 Apr 2021 08:42:53 -0700 [thread overview]
Message-ID: <20210420154253.GA577572@agluck-desk2.amr.corp.intel.com> (raw)
In-Reply-To: <CAPcxDJ6OAd=qdfxoTQ4cp5vQ6_+phWqX8gJfec48XyAZybBpsw@mail.gmail.com>
On Mon, Apr 19, 2021 at 06:49:15PM -0700, Jue Wang wrote:
> 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.
Jue,
Correct. SRAO machine checks are broadcast. But rather than remove the
second part, just replace with "multiple local machine checks on different
CPUs".
-Tony
next prev parent reply other threads:[~2021-04-20 15:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-20 1:49 [PATCH v1 3/3] mm,hwpoison: add kill_accessing_process() to find error virtual address Jue Wang
2021-04-20 7:51 ` HORIGUCHI NAOYA(堀口 直也)
2021-04-20 15:42 ` Luck, Tony [this message]
2021-04-21 1:04 ` HORIGUCHI NAOYA(堀口 直也)
-- strict thread matches above, loose matches on Subject: below --
2021-04-20 2:03 Jue Wang
2021-04-20 15:47 ` Luck, Tony
2021-04-20 16:30 ` Jue Wang
2021-04-20 17:15 ` Luck, Tony
2021-04-12 22:43 [PATCH v1 0/3] mm,hwpoison: fix sending SIGBUS for Action Required MCE Naoya Horiguchi
2021-04-12 22:43 ` [PATCH v1 3/3] mm,hwpoison: add kill_accessing_process() to find error virtual address Naoya Horiguchi
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