Re: [Xen-devel] RT Xen on ARM - R-Car series

[Julien Grall <julien.grall@xxxxxxx>]

On 2/1/19 10:07 AM, Andrii Anisov wrote:
> On 31.01.19 23:56, Stefano Stabellini wrote:
> > I ran into this problem as well not too long ago too. It is very
> > annoying and it is basically impossible to work-around, the only thing
> > possible would be to suppress the warning, but that doesn't even count
> > as a work-around :-)
> Well, yet it is adopted for non-debug builds de facto :\
The thing is the presence of the printk is not the real problem. It only 
tells you the mapping is inexistent. The problem is if in debug build 
you don't see at all this message (assuming you have kpti enabled). This 
would mean you would overwrite a random page.
Cheers,

--
Julien Grall

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