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Date:   Mon, 16 Apr 2018 10:56:19 -0700
From:   Linus Torvalds <>
To:     Shuah Khan <>,
        Dave Hansen <>
Cc:     Andy Lutomirski <>, Ingo Molnar <>,
        Greg Kroah-Hartman <>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        Linux Kernel Mailing List <>,
        "the arch/x86 maintainers" <>
Subject: Re: Linux 4.17-rc1 - kernel paging errors running x86 selftests

On Mon, Apr 16, 2018 at 10:43 AM, Linus Torvalds
<> wrote:
> I don't see *why* it would be badly set up, and that test works fine
> for me, though.


I'm wrong. I can see it too. My desktop was running 18b7fd1c93e5 (my
kernel from Saturday, I hadn't rebooted it since), but I had 4.17-rc1
in kvmtool and on my laptop, and I see the problem in both cases.

So this came in recently, and I bet it's the global pages series from
Dave Hansen, although there were a few other things that came in
during the last day.

That should make it easy to bisect, there's only a handful of x86 changes.


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