linux-kernel - Re: [REGRESSION][v4.9.y][v4.10.y] x86/efi: Only map RAM into EFI page tables if in mixed-mode

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Date:   Fri, 3 Feb 2017 08:35:22 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Joseph Salisbury <joseph.salisbury@...onical.com>
Cc:     Laura Abbott <labbott@...hat.com>,
        Matt Fleming <matt@...eblueprint.co.uk>,
        Waiman Long <waiman.long@....com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Borislav Petkov <bp@...en8.de>,
        "Theodore Ts'o" <tytso@....edu>, Arnd Bergmann <arnd@...db.de>,
        Greg KH <gregkh@...uxfoundation.org>,
        Scott J Norton <scott.norton@....com>,
        Douglas Hatch <doug.hatch@....com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        "linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [REGRESSION][v4.9.y][v4.10.y] x86/efi: Only map RAM into EFI page
 tables if in mixed-mode

On Fri, Feb 3, 2017 at 6:16 AM, Joseph Salisbury
<joseph.salisbury@...onical.com> wrote:
> On 02/02/2017 03:36 PM, Laura Abbott wrote:
>>
>> You might try https://marc.info/?l=linux-kernel&m=148553171703761
>> which fixed https://bugzilla.redhat.com/show_bug.cgi?id=1384238
>
> This patch resolves the bug for multiple users.  Thanks again for the
> pointer, Laura and Ard!

.. and that patch should be in mainline now (and is marked for
stable), having gotten merged with the EFI fixes pull yesterday.

               Linus