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:   Fri, 23 Feb 2018 09:07:01 +0100
From:   Pavel Machek <pavel@....cz>
To:     whiteheadm@....org
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

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:

For desktop PCs, I guess grouping by CPU type makes sense. But I guess
I'd prefer grouping CPUs by manufacturer, not by CPU "family".

So I'd propose

pc/intel/i486
pc/cyrix/cx486
pc/amd/am486
...

> 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.

Advantage is, that even if you know little about the chip, you know
who manufactured it and how it is called :-).

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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