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Message-ID: <CA+55aFx=pwEJQHhab3gW6+qdom=ccFoWoK-aZokmqtPxNqTd8g@mail.gmail.com>
Date:   Mon, 16 Apr 2018 11:04:09 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Dave Hansen <dave.hansen@...ux.intel.com>
Cc:     Shuah Khan <shuahkh@....samsung.com>,
        Andy Lutomirski <luto@...nel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "the arch/x86 maintainers" <x86@...nel.org>
Subject: Re: Linux 4.17-rc1 - kernel paging errors running x86 selftests

On Mon, Apr 16, 2018 at 10:58 AM, Dave Hansen
<dave.hansen@...ux.intel.com> wrote:
>
> Joerg just found and fixed something that would be poked by the x86
> selftests:
>
> https://lkml.org/lkml/2018/4/16/230

Yup.

And that silly bug explains the all-ones PTE.

I was going through the bisection, with just a couple more rounds to
go, but I guess I don't even need it.

              Linus

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