linux-kernel - RE: [PATCH v3 0/3] mm,hwpoison: fix sending SIGBUS for Action Required MCE

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Date:   Mon, 10 May 2021 03:28:07 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Aili Yao <yaoaili@...gsoft.com>,
        HORIGUCHI NAOYA(堀口　直也) 
        <naoya.horiguchi@....com>
CC:     Naoya Horiguchi <nao.horiguchi@...il.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Oscar Salvador" <osalvador@...e.de>,
        David Hildenbrand <david@...hat.com>,
        Borislav Petkov <bp@...en8.de>,
        Andy Lutomirski <luto@...nel.org>, Jue Wang <juew@...gle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "yaoaili126@...il.com" <yaoaili126@...il.com>
Subject: RE: [PATCH v3 0/3] mm,hwpoison: fix sending SIGBUS for Action
 Required MCE

> Sorry, I am not sure if the stress test in my server is same with yours.

It's better if you test different things ... that's how we get better coverage.

> Usually, I will do one RAS stress test from mce-test/cases/stress before post something.
> Maybe this test is not general useful or you have tested it and passed or you may think
> the test is not proper though or you tested and you don't think it's one real issue,
> then just ignore it please.

I haven't re-run the mce-test cases for a while. The test that was run on these patches
involves a multi-threaded application running on all logical CPUs. When poison is injected
many of the CPUs can hit the poison close together. So it's a good stress test for the new
series.

-Tony