linux-kernel - Re: Candidate Linux ABI for Intel AMX and hypothetical new related features

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Date:   Fri, 21 May 2021 16:49:22 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Florian Weimer <fweimer@...hat.com>
Cc:     Dave Hansen via Libc-alpha <libc-alpha@...rceware.org>,
        Len Brown <lenb@...nel.org>,
        Dave Hansen <dave.hansen@...el.com>,
        Rich Felker <dalias@...c.org>,
        Linux API <linux-api@...r.kernel.org>,
        "Bae, Chang Seok" <chang.seok.bae@...el.com>,
        X86 ML <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
        Kyle Huey <me@...ehuey.com>, Borislav Petkov <bp@...en8.de>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Keno Fischer <keno@...iacomputing.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Willy Tarreau <w@....eu>
Subject: Re: Candidate Linux ABI for Intel AMX and hypothetical new related
 features

On Fri, May 21, 2021 at 04:44:58PM +0200, Florian Weimer wrote:

> And we added an interface for querying x86 CPU features to glibc 2.33
> which is completely incompatible with this because it assumes that CPU
> features do not change during the lifetime of a process. 8-(

How many x86 kernel maintainers signed off on that patch?