linux-kernel - Re: [PATCH 0/3] x86: make pat and mtrr independent from each other

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Message-ID: <907702d6-05f0-0f2e-6dba-399688972b40@netscape.net>
Date:   Mon, 15 Aug 2022 12:04:27 -0400
From:   Chuck Zmudzinski <brchuckz@...scape.net>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Thorsten Leemhuis <regressions@...mhuis.info>, jbeulich@...e.com,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Pavel Machek <pavel@....cz>, Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        regressions@...ts.linux.dev, Juergen Gross <jgross@...e.com>,
        xen-devel@...ts.xenproject.org, x86@...nel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH 0/3] x86: make pat and mtrr independent from each other

On 8/14/2022 9:01 AM, Greg KH wrote:
> On Sun, Aug 14, 2022 at 08:08:30AM -0400, Chuck Zmudzinski wrote:
> > On 8/14/2022 5:50 AM, Greg KH wrote:
> > > On Sun, Aug 14, 2022 at 05:19:12AM -0400, Chuck Zmudzinski wrote:
> > > > Well, that did not take long. Juergen responded with a message,
> > > > which is encrypted and not delivered to my mailbox because I do not
> > > > have the PGP keys, presumably to make it difficult for me to continue
> > > > the discussion and defend myself after I was accused of violating
> > > > the netiquette rules yesterday by Boris:
> > >
> > > The message was signed, not encrypted.  Odd that your email client could
> > > not read it, perhaps you need to use a different one?
> > >
> > > thanks,
> > >
> > > greg k-h
> > 
> > It's not that my e-mail client could not read it, there is no evidence it
> > was ever sent to me.
>
> The To: line had your address in it, so it was sent to you,

Well, that only proves the sender, Juergen Gross, intended to send it to me.
So far, I have not found any evidence the message was delivered to my
Inbox. The evidence I have obtained so far in my filesystem and from my
e-mail provider and the messages I have received through my e-mail provider
is that the message was never delivered to my Inbox, and based on that
evidence, my current theory is that my e-mail service provider silently
dropped the message because it was signed. I will report the full findings
of my investigation here when my investigation is complete.

The only way I was able to respond to the message was by downloading
the mbox file from lore.kernel.org and importing it into my e-mail client.
So it is a fact that it was more difficult for me to respond and defend myself
against the attack that Juergen made against me because I had to go to the
trouble of finding the message on lore.kernel.org and import it into my
e-mail client instead of just using the ordinary procedure of replying to
a message I received in my Inbox.

Best regards,

Chuck