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List: qemu-discuss
Subject: Re: [Qemu-discuss] Hang on reboot in FreeBSD guest on Linux KVM host
From: Paolo Bonzini <pbonzini () redhat ! com>
Date: 2014-06-17 4:21:23
Message-ID: 539FC243.2070906 () redhat ! com
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Il 16/06/2014 18:47, John Nielsen ha scritto:
> On Jun 16, 2014, at 10:39 AM, Paolo Bonzini <pbonzini@redhat.com> wrote:
>
>> Il 16/06/2014 18:09, John Nielsen ha scritto:
>>>>> The only substantial difference on the hardware side is the CPU.
>>>>> The hosts where the problem occurs use "Intel(R) Xeon(R) CPU
>>>>> E5-2650 v2 @ 2.60GHz", while the hosts that don't show the
>>>>> problem use the prior revision, "Intel(R) Xeon(R) CPU E5-2650 0 @
>>>>> 2.00GHz".
>>
>> Can you do "grep . /sys/module/kvm_intel/parameters/*" on both hosts please?
>
> No differences that I can see. Output below.
Not really:
> Working host:
> Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz
> # grep . /sys/module/kvm_intel/parameters/*
> /sys/module/kvm_intel/parameters/enable_apicv:N
>
> Problem host:
> Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz
> # grep . /sys/module/kvm_intel/parameters/*
> /sys/module/kvm_intel/parameters/enable_apicv:Y
So we have a clue. Let me study the code more, I'll try to get back
with a suggestion.
In the meanwhile, I'm CCing the KVM list and BCCing QEMU, so that
follow-ups come to the KVM list.
Paolo
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