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Re: [Qemu-devel] freeze host when injecting NMIs in the guest, at least


From: Paolo Bonzini
Subject: Re: [Qemu-devel] freeze host when injecting NMIs in the guest, at least in 4.4-rc4+
Date: Thu, 10 Dec 2015 17:49:10 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0


On 10/12/2015 17:44, Borislav Petkov wrote:
> Yap,
> 
> this is clearly a qemu/kvm issue. Lemme remove ext4 folks from CC. So
> here's what happens:
> 
> I boot a kvm guest, connect to its monitor (qemu is started with
> "-monitor pty") and on the monitor I issue a couple of times the "nmi"
> command. It doesn't explode immediately but it happens pretty often and
> when it happens, the *host*(!) freezes with some nasty corruption, see
> below.
> 
> Thoughts, suggestions, ideas?

Can you try it on Intel?

Paolo



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