Re: [Xen-devel] [PATCH 13/16] SUPPORT.md: Add secondary memory management features

[George Dunlap <george.dunlap@xxxxxxxxxx>]

On 11/23/2017 12:58 PM, Andrew Cooper wrote:
> On 23/11/17 12:45, Olaf Hering wrote:
>> On Thu, Nov 23, Andrew Cooper wrote:
>>
>>> Its not that.  This failure comes from the ring living inside the p2m,
>>> and has already been found with introspection.
>> In my case it was just a wrong domid. Now I use 'xl domid domU' and
>> xenpaging does something. It seems paging out and in works still to some
>> degree.  But it still/again needs lots of testing and fixing.
>>
>> I get errors like this, and xl dmesg has also errors:
>>
>> ...
>> xc: detail: populate_page < gfn 10100 pageslot 127
>> xc: detail: Need to resume 200 pages to reach 131328 target_tot_pages
>> xc: detail: Got event from evtchn
>> xc: detail: populate_page < gfn 10101 pageslot 128
>> xenforeignmemory: error: mmap failedxc: : Invalid argument
>> detail: populate_page < gfn 10102 pageslot 129
>> xc: detail: populate_page < gfn 10103 pageslot 130
>> xc: detail: populate_page < gfn 10104 pageslot 131
>> ...
>>
>> ...
>> (XEN) vm_event.c:289:d0v0 d2v0 was not paused.
>> (XEN) vm_event.c:289:d0v0 d2v0 was not paused.
>> (XEN) vm_event.c:289:d0v2 d2v2 was not paused.
>> ...
> 
> Hmm ok.  Either way, I think this demonstrates that the feature is not
> of "Tech Preview" quality.

Indeed; I've changed it back to "Experimental".

Thanks all,
 -George

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