Gilles Chanteperdrix wrote:
> Hi,
> 
> in order to test the nocow patch, I wrote the attached test. Despite the
> fact that there is no longer any page fault (I have nucleus debugging
> on, so I would get a message if there was a fault), there is still an
> unwanted mode switch at step 5. Any idea what could be the cause ?

I added a show_stack(NULL, NULL) in xnshadow_relax, and I get the
following stack trace:
xnshadow_relax
hisyscall_event
xnshadow_sys_migrate
losyscall_event

-- 
                                                 Gilles Chanteperdrix

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