Re: commit f8f559422b (KVM: MMU: fast invalidate all mmio sptes)causes hang

From: Markus Trippelsdorf
Date: Wed Jul 17 2013 - 13:34:48 EST


On 2013.07.18 at 01:25 +0800, Xiao Guangrong wrote:
> Hi Markus,
>
> Thanks for your report! I am downloading the ubuntu iso and will try to reproducible it.

Please note that the exact guest doesn't matter. I first noticed the
hang when I tried to install Fedora 19 today.

> Could you please enable these tracepoints:
> kvmmmu/check_mmio_spte
> kvmmmu/handle_mmio_page_fault
> kvmmmu/kvm_mmu_invalidate_zap_all_pages
> kvmmmu/mark_mmio_spte
> kvm/kvm_mmio
> kvm/vcpu_match_mmio
>
> and post the output?

I will run this later.

> Just check, your host is 64-bit or 32 bit?

Both guest and host are 64-bit.

--
Markus
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