linux-kernel - Re: regression bisected; KVM: entry failed, hardware error 0x80000021

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Date:	Sat, 27 Dec 2014 20:33:54 +0100
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	"Chen, Tiejun" <tiejun.chen@...el.com>,
	kvm list <kvm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	luto@...capital.net, jamie@...ible.transient.net
Subject: Re: regression bisected; KVM: entry failed, hardware error 0x80000021



On 25/12/2014 08:46, Chen, Tiejun wrote:
> 
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index f528343..910bc48 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -672,6 +672,7 @@ static void update_memslots(struct kvm_memslots *slots,
>         WARN_ON(mslots[i].id != id);
>         if (!new->npages) {
>                 new->base_gfn = 0;
> +               new->flags = 0;
>                 if (mslots[i].npages)
>                         slots->used_slots--;
>         } else {

Why is this assignment needed?

Paolo
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