On Fri, Dec 14, 2018 at 11:54:28PM +0100, Borislav Petkov wrote: > On Fri, Dec 14, 2018 at 11:42:01PM +0100, Thomas Schöbel-Theuer wrote: > > Ah, I overlooked that commit e56c92565dfe2 is already providing a different > > solution to the same problem in newer kernels _only_, as a _side_ effect > > (not clear to me from the description, but clear from reading the code). > > Damn, I missed the fact that this is not the upstream kernel: > > CPU: 0 PID: 1 UID: 0 Comm: swapper/0 Not tainted 4.4.0-ui18344.004-uiabi1-infong-amd64 #1 > > > So another alternative would be backporting e56c92565dfe2 to the 4.4 LTS > > series. Also fine for me. > > That looks like the right fix. > > A note for the next time: do not send a fix for a stable kernel which is > not upstream: > > >From Documentation/process/stable-kernel-rules.rst: > > " - It or an equivalent fix must already exist in Linus' tree (upstream)." > > The stable kernels track upstream so if a stable kernel has a problem, > the first thing one needs to do is to check whether this has been fixed > upstream and if so, to backport it. This is the case most of the time. > In the very seldom cases where a separate fix is needed, it needs to be > handled by asking Greg what to do. :-) > > Adding stable@ folks to CC to set me straight if I'm missing something. Nope, you are correct, thanks! greg k-h