| Rich Freeman on 2 Jan 2018 12:31:55 -0800 |
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| Re: [PLUG] The mysterious case of the Linux Page Table Isolation patches |
On Tue, Jan 2, 2018 at 1:02 PM, K.S. Bhaskar <bhaskar@bhaskars.com> wrote: > If the speculation at > http://pythonsweetness.tumblr.com/post/169166980422/the-mysterious-case-of-the-linux-page-table > is correct, the details should be very interesting, and may have interesting > consequences. > Looks like the rumors might be pushing up the embargo, unless it was due anyway. The fixes were just released in a couple of stable kernels a few minutes ago. I noticed that at least the 4.14 fix doesn't include the AMD patch that disables the setting on AMD CPUs. Only AMD knows for sure whether their CPUs are actually affected, but AMD users might want to either delay updating, apply the patch themselves to disable it on AMD, or disable it from the kernel command line to avoid the performance hit. I'm guessing now that the cat is mostly out of the bag we'll see an official announcement fairly soon. The Register also published an article that mentions this coming Patch Tuesday, and that this is already out in a Windows Beta for large users: https://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/ -- Rich ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug