linux-kernel - Re: "Bad pagetable: 000c" crashes and errata "Not-Present Page Faults May Set the RSVD Flag in the Error Code"

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Message-ID: <04db74ce-4e43-1edb-34e6-ca162f483680@intel.com>
Date:   Mon, 20 Jun 2022 00:18:32 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Vasily Averin <vvs@...nvz.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>
Cc:     kernel@...nvz.org, Konstantin Khorenko <khorenko@...tuozzo.com>,
        steve.sipes@...andsolutions.com, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: "Bad pagetable: 000c" crashes and errata "Not-Present Page Faults
 May Set the RSVD Flag in the Error Code"

On 6/19/22 22:29, Vasily Averin wrote:
> Some (old?) Intel CPU's have errata:
> "Not-Present Page Faults May Set the RSVD Flag in the Error Code

Do you happen to have a link to the actual erratum document?  It's
usually a "Specification Update" for some model or another.