linux-kernel - Re: [PATCH] core_pattern: add CPU specifier

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Message-ID: <Yxi+dQkuV2zdBzk3@bombadil.infradead.org>
Date:   Wed, 7 Sep 2022 08:53:25 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Oleksandr Natalenko <oleksandr@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Huang Ying <ying.huang@...el.com>,
        "Jason A . Donenfeld" <Jason@...c4.com>,
        Will Deacon <will@...nel.org>,
        "Guilherme G . Piccoli" <gpiccoli@...lia.com>,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        Stephen Kitt <steve@....org>, Rob Herring <robh@...nel.org>,
        Joel Savitz <jsavitz@...hat.com>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Kees Cook <keescook@...omium.org>,
        Xiaoming Ni <nixiaoming@...wei.com>,
        Renaud Métrich <rmetrich@...hat.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Grzegorz Halat <ghalat@...hat.com>, Qi Guo <qguo@...hat.com>
Subject: Re: [PATCH] core_pattern: add CPU specifier

On Sat, Sep 03, 2022 at 08:43:30AM +0200, Oleksandr Natalenko wrote:
> Statistically, in a large deployment regular segfaults may indicate a CPU issue.

Can you elaborate on this? How common is this observed to be true? Are
there any public findings or bugs where it showed this?

  Luis