linux-kernel - Re: What was last kernel that booted on hardware XY? database was Re: [BUG] x86 : i486 reporting to be vulnerable to Meltdown/Spectre_V1/Spectre

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Date:   Sat, 17 Feb 2018 17:39:00 -0500
From:   tedheadster <tedheadster@...il.com>
To:     Pavel Machek <pavel@....cz>
Cc:     Ondrej Zary <linux@...nbow-software.org>,
        David Laight <David.Laight@...lab.com>,
        Arnd Bergmann <arnd@...db.de>,
        Alan Cox <gnomes@...rguk.ukuu.org.uk>,
        David Woodhouse <dwmw2@...radead.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hugh Dickins <hughd@...gle.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Jiri Kosina <jikos@...nel.org>, Borislav Petkov <bp@...en8.de>,
        Kees Cook <keescook@...omium.org>,
        Jamie Iles <jamie@...ieiles.com>,
        Eduardo Valentin <eduval@...zon.com>,
        Laura Abbott <labbott@...hat.com>,
        Rik van Riel <riel@...riel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: What was last kernel that booted on hardware XY? database was Re:
 [BUG] x86 : i486 reporting to be vulnerable to Meltdown/Spectre_V1/Spectre_V2A

On Sat, Feb 17, 2018 at 4:16 PM, Pavel Machek <pavel@....cz> wrote:
> Hi!
>
>> > BTW... I'd really like to have a database of machine, kernel version,
>> > cpuinfo, config... So that questions like "what is the latest kernel
>> > that is known to be running on this hardware" and "what config should
>> > I start from".
>> >
>> > For example, I have nokia N810 here. It was supported by Linux at some
>> > point, but then we moved to dts, and stuff changed, and I can no
>> > longer figure how to boot it.
>> >
>> > I guess "what was last kernel that worked on Cyrix MII" is also
>> > relevant question.
>> >
>> > Is there such database? If not, would people be interested in
>> > contributing if I create one?
>> >
>>
>> I am interested and will help. I have i486/i586/Pentium Pro/Pentium
>> II/Pentium II Xeon/Pentium 4 systems to test on. Oddly, I don't yet
>> have Pentium III systems.
>>
>> I think an associated goal would be to fix those broken versions.
>>
>> I think this is a great project for college students to get experience
>> with. Who else is interested?
>
> Ok, I started something:
>
> https://github.com/pavelmachek/missy
>
This is a good start. Could we start to create a hierarchy of major
architectures next? I propose the following:

i486->Intel->i486
i486->Cyrix->Cx486
i486->AMD->Am486
i486->UMC->Green CPU
i586->Intel->Pentium Classic
i586->Intel->Pentium MMX
i586->Intel->Atom
i586->AMD->K5
i586->AMD->K6
i586->AMD->K6 II
i586->AMD->K6 III
i586->Cyrix->5x86
i586->Cyrix->6x86
i586->Cyrix->6x86MX
i586->Cyrix->Cyrix III
i686->Intel->Pentium Pro
i686->Intel->Pentium II
i686->Intel->Pentium III
i686->Intel->Pentium 4
i686->Intel->Pentium M
i686->Intel->Core 2
i686->AMD->K7
i686->AMD->K8

You would put the computer you tested it on inside one of these directories.

This will need to be edited if you choose to use it. I left out items
I know little about, such as Geode GX1, Geode LX, VIA C3-2, VIA C7,
Transmeta Crusoe and Efficeon, Winchip-2, Winchip-C6, and certainly
others.

- Matthew