linux-kernel - Re: selftests/x86/fsgsbase

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Message-ID: <CALCETrXq0T+SbUgY-yPwAsqkeCvyNGdVwGtgqDLQb4CXphOtFw@mail.gmail.com>
Date:   Sun, 28 Jan 2018 11:21:51 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Andy Lutomirski <luto@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>, Dan Rue <dan.rue@...aro.org>,
        Shuah Khan <shuah@...nel.org>, Ingo Molnar <mingo@...nel.org>,
        Dmitry Safonov <dsafonov@...tuozzo.com>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: selftests/x86/fsgsbase_64 test problem

On Fri, Jan 26, 2018 at 2:56 PM, Borislav Petkov <bp@...en8.de> wrote:
> On Fri, Jan 26, 2018 at 02:38:28PM -0800, Andy Lutomirski wrote:
>> Borislav, any chance you could run the attached program on an AMD
>> machine to see what it does?
>
> [boris@pd: /tmp> ./gs1
> PID = 3420
> ax = 0, cx = 0, dx = 0
>
> This is on 4.15-rc7-ish + tip/master from 2 wks ago.

Phooey :(