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xen-devel
Re: [Xen-devel] [PATCH] fs-backend: fix gnttab unmap
Keith Coleman wrote:
> On Thu, Mar 19, 2009 at 12:58 PM, Stefano Stabellini
> <stefano.stabellini@xxxxxxxxxxxxx> wrote:
>> Hi all,
>> when a stubdom is destroyed, fs-backend does not correctly unmap all the
>> pages mapped for the shared ring.
>> This causes some pages not to be properly freed by xen, hence after a
>> cycle of 50 save\restore we don't have enough spare memory to start 2
>> VMs any more.
>> This patch fixes the issue properly unmapping all the pages needed by
>> the shared ring.
>>
>
> I can confirm that fs-backend is more stable. I have performed
> hundreds of save/restore cycles without issue.
>
good, thanks again for testing.
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