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...L-6.8 today. I have attached the diff file between 2.6.32-642.6.1.el6 and 2.6.32-642.6.2.el6. It is more complex because the 6 kernel is older, so required more mods, I suppose. Maybe that was the reason why the EL-6 update took longer than EL-7. Akemi -------------- next part -------------- diff -uNpr linux-2.6.32-642.6.1.el6/include/linux/mm.h linux-2.6.32-642.6.2.el6/include/linux/mm.h --- linux-2.6.32-642.6.1.el6/include/linux/mm.h 2016-08-25 08:07:47.000000000 -0700 +++ linux-2.6.32-642.6.2.el6/include/linux/mm.h 2016-10-24 06:19:16.000000000 -0700 @@ -1420,6 +1420,7 @@ struct page *follow_p...

On Tue, 25 Oct 2016 10:06:12 +0200 Christian Anthon <anthon at rth.dk> wrote: > What is the best approach on centos 6 to mitigate the problem is > officially patched? As far as I can tell Centos 6 is vulnerable to > attacks using ptrace. I can confirm that c6 is vulnerable, we're running a patched kernel (local build) using a rhel6 adaptation of the upstream fix. Ask

Hi Chandler, I feel like this conversation has come full circle. So to ask again: how does one force CMOV to be emitted? You suggested “__builtin_unpredictable()” but that gets lost in various optimization passes. Given other architectures have CMOV like instructions, and given the usefulness of the instruction for performance tuning, it seems like a direct intrinsic would be best. What am I missing? Dave > On Sep 14, 2019, at 8:35 AM, Chand...