linux-kernel - Re: [PATCH v6 00/12] SVM cleanup and INVPCID feature support

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Message-ID: <CALMp9eRDSW66+XvbHVF4ohL7XhThoPoT0BrB0TcS0cgk=dkcBg@mail.gmail.com>
Date:   Tue, 19 Jan 2021 15:01:12 -0800
From:   Jim Mattson <jmattson@...gle.com>
To:     Babu Moger <babu.moger@....com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        kvm list <kvm@...r.kernel.org>, Joerg Roedel <joro@...tes.org>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Makarand Sonare <makarandsonare@...gle.com>
Subject: Re: [PATCH v6 00/12] SVM cleanup and INVPCID feature support

On Mon, Sep 14, 2020 at 11:33 AM Babu Moger <babu.moger@....com> wrote:

> Thanks Paolo. Tested Guest/nested guest/kvm units tests. Everything works
> as expected.

Debian 9 does not like this patch set. As a kvm guest, it panics on a
Milan CPU unless booted with 'nopcid'. Gmail mangles long lines, so
please see the attached kernel log snippet. Debian 10 is fine, so I
assume this is a guest bug.

Download attachment "debian9.panic" of type "application/octet-stream" (3420 bytes)