linux-kernel - Re: [PATCH -next] x86/mm/pat: silence a data race in cpa_4k

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Message-ID: <20200121152853.GI7808@zn.tnic>
Date:   Tue, 21 Jan 2020 16:28:53 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Qian Cai <cai@....pw>
Cc:     Marco Elver <elver@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        the arch/x86 maintainers <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] x86/mm/pat: silence a data race in cpa_4k_install

On Tue, Jan 21, 2020 at 04:19:22PM +0100, Marco Elver wrote:
> Could you remove the verbatim copy of my email? Maybe something like:
> 
> "Increments to cpa_4k_install may happen concurrently, as detected by KCSAN:
> 
> <....... the stack traces ......>

... and drop the stack traces and fix your subject to say what you're
actually "fixing".

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette