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