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Re: [Xen-devel] shadow2 corrupting PV guest state

To: Tim Deegan <Tim.Deegan@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] shadow2 corrupting PV guest state
From: Doi.Tsunehisa@xxxxxxxxxxxxxx
Date: 2006年10月24日 18:39:01 +0900
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Doi.Tsunehisa@xxxxxxxxxxxxxx
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Hi,
You (Tim.Deegan) said:
>> In my investigation, get_page() assumes that the page frame is in
>> use. But, the page_info structure of released page frame should not
>> be treated as inuse. Thus the nd value might be invalid value in this
>> situation, I think.
>
> True, but we don't look at nd unless the page is allocated...
 Between domain_relinquish_resources() in domain_kill() and
shadow_final_teadown() in domain_destroy(), nd might be looked
with gnttab_copy(), I think.
 Is it true ?
Thanks,
- Tsunehisa Doi
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