Re: [Qemu-devel] Hang on reboot in FreeBSD guest on Linux KVM host

[John Nielsen]

On Jun 16, 2014, at 10:39 AM, Paolo Bonzini <address@hidden> 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.

Working host:
Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz
# grep . /sys/module/kvm_intel/parameters/*
/sys/module/kvm_intel/parameters/emulate_invalid_guest_state:Y
/sys/module/kvm_intel/parameters/enable_apicv:N
/sys/module/kvm_intel/parameters/enable_shadow_vmcs:N
/sys/module/kvm_intel/parameters/ept:Y
/sys/module/kvm_intel/parameters/eptad:N
/sys/module/kvm_intel/parameters/fasteoi:Y
/sys/module/kvm_intel/parameters/flexpriority:Y
/sys/module/kvm_intel/parameters/nested:N
/sys/module/kvm_intel/parameters/ple_gap:128
/sys/module/kvm_intel/parameters/ple_window:4096
/sys/module/kvm_intel/parameters/unrestricted_guest:Y
/sys/module/kvm_intel/parameters/vmm_exclusive:Y
/sys/module/kvm_intel/parameters/vpid:Y

Problem host:
Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz
# grep . /sys/module/kvm_intel/parameters/*
/sys/module/kvm_intel/parameters/emulate_invalid_guest_state:Y
/sys/module/kvm_intel/parameters/enable_apicv:Y
/sys/module/kvm_intel/parameters/enable_shadow_vmcs:N
/sys/module/kvm_intel/parameters/ept:Y
/sys/module/kvm_intel/parameters/eptad:N
/sys/module/kvm_intel/parameters/fasteoi:Y
/sys/module/kvm_intel/parameters/flexpriority:Y
/sys/module/kvm_intel/parameters/nested:N
/sys/module/kvm_intel/parameters/ple_gap:128
/sys/module/kvm_intel/parameters/ple_window:4096
/sys/module/kvm_intel/parameters/unrestricted_guest:Y
/sys/module/kvm_intel/parameters/vmm_exclusive:Y
/sys/module/kvm_intel/parameters/vpid:Y