linux-kernel - Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12

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Message-ID: <b634eee0-8109-dfc0-f9ab-a9a8495d63b6@redhat.com>
Date:   Sun, 6 Aug 2017 23:10:55 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Sebastian Rachuj <Rachus@....de>, rkrcmar@...hat.com,
        tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
        x86@...nel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12

On 05/08/2017 21:26, Sebastian Rachuj wrote:
> Dear linux developers,
> 
> since my upgrade from linux 4.11 to linux 4.12 the "kvm_intel" module
> does not load correctly anymore. "Modprobing" the kernel module gives an
> Input/Output error. It seems to be related to the CPU architecture and
> (to my knowledge) affects Conroe CPUs. I did a bisect and found the
> following commit as the guilty one:

What is your cpuinfo?  I tested on a Conroe Xeon X3220 (family 6,
model 15, stepping 11) when I posted that patch, and it did have virtual
NMIs.

Paolo