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Date:   Sun, 23 Aug 2020 16:12:17 -0700
From:   Andy Lutomirski <>
To:     Linus Torvalds <>
Cc:     Andy Lutomirski <>,
        Thomas Gleixner <>,
        Linux Kernel Mailing List <>,
        "the arch/x86 maintainers" <>
Subject: Re: [GIT pull] x86/urgent for v5.9-rc2

On Sun, Aug 23, 2020 at 3:35 PM Linus Torvalds
<> wrote:
> On Sun, Aug 23, 2020 at 3:27 PM Andy Lutomirski <> wrote:
> >
> > Every interrupt is going to load the CS and SS descriptor cache lines.
> Yeah, but this isn't even sharing the same GDT cache line. Those two
> are at least in the same cacheline, and hey, that is forced upon us by
> the architecture, so we don't have any choice.
> But I guess this lsl thing only triggers on the paranoid entry, so
> it's just NMI, DB and MCE.. Or?

Indeed.  And also all the new virt garbage that keeps popping up.


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