Re: [Xen-devel] [PATCH] x86/mm/shadow: spurious warning when unmapping xenheap pages.

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 05.04.13 at 10:30, Tim Deegan <tim@xxxxxxx> wrote:
> At 09:11 +0100 on 05 Apr (1365153095), Jan Beulich wrote:
>> >>> On 28.03.13 at 11:35, Tim Deegan <tim@xxxxxxx> wrote:
>> > Xenheap pages will always have an extra typecount, taken in
>> > share_xen_page_with_guest(), which doesn't come from a shadow PTE.
>> > Adjust the warning in sh_remove_all_mappings() to account for it.
>> > 
>> > Reported-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
>> > Signed-off-by: Tim Deegan <tim@xxxxxxx>
>> 
>> I suppose this ought to go into 4.2.2 and 4.1.5 as well?
> 
> Could do -- it's just suppressing a printk, so not a particularly urgent
> fix AFAICT.

But the message, if present when inspecting some random log,
looks worrying, so getting rid of the false positive is likely going
to help assessing the health of systems/guests.

Jan


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