Re: Patch "kaiser: fix intel_bts perf crashes" has been added to the 4.4-stable tree

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On Thu, Feb 01, 2018 at 09:18:43AM -0500, Vince Weaver wrote:
> On Thu, 1 Feb 2018, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
> 
> > 
> > This is a note to let you know that I've just added the patch titled
> > 
> >     kaiser: fix intel_bts perf crashes
> > 
> > to the 4.4-stable tree which can be found at:
> >     http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
> > 
> > The filename of the patch is:
> >      kaiser-fix-intel_bts-perf-crashes.patch
> > and it can be found in the queue-4.4 subdirectory.
> > 
> > If you, or anyone else, feels it should not be added to the stable tree,
> > please let <stable@xxxxxxxxxxxxxxx> know about it.
> 
> I thought that to get into stable the patch had to be in upstream first.
> 
> As far as I know, there is no fix for this particular problem (BTS 
> disabled due to KPTI caused crashes) upstream.

Really?  This is a reported issue in 4.15?  I haven't seen that report
anywhere, do you have a pointer to it?

The 4.4 and 4.9 backports do have odd one-off patches that are not in
4.14 and newer due to the way the backports were done, so they will
diverge.  But they should not diverge in bugfixes :)

thanks,

greg k-h



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