Re: Xen: decreasing cpu steal clock counter

[Greg KH <greg@kroah.com>]

On Thu, Aug 31, 2017 at 03:51:39PM +0200, Valentin Vidic wrote:
> On Thu, Aug 31, 2017 at 03:37:09PM +0200, Greg KH wrote:
> > What patch?
> 
> Attaching the patch from this link:
> 
>   https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=871608;filename=handle-decreasing-steal-clock.patch;msg=5

I can't do anything with non-upstream patches for stable kernels.  You
have read
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
right?

> > What is the git commit id of the aptch in Linus's tree that resolves
> > this issue?
> 
> The issue was fixed later in 4.11, but this might be a bigger change
> so not sure if you want to take that:
> 
>   2b1f967d80e8e5d7361f0e1654c842869570f573
>   sched/cputime: Complete nsec conversion of tick based accounting

I always would rather take the original change that is in Linus's tree,
as 99% of the time we take something different, it ends up being wrong.

But I kind of doubt the above git commit id is the right one to take :(

I need some feedback from the Xen maintainers before I can do anything
else.

thanks,

greg k-h