Hello RT Folks! I'm pleased to announce the 4.4.148-rt165 stable release. This release is just an update to the new stable 4.4.148 version and no RT specific changes have been made. Known issues: - 'stress-ng --ptrace 4' is able to trigger a latency spike of several ms. Usually around 2 - 3ms on two different x86_64 boxes I can test on. 4.9-rt seems to have the same problem. 4.14-rt and 4.16-rt work just fine. Still debugging the issue. You can get this release via the git tree at: git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git branch: v4.4-rt Head SHA1: 581e591d5bda2fb9fd1d2802d98587f2555d20e4 Or to build 4.4.148-rt165 directly, the following patches should be applied: http://www.kernel.org/pub/linux/kernel/v4.x/linux-4.4.tar.xz http://www.kernel.org/pub/linux/kernel/v4.x/patch-4.4.148.xz http://www.kernel.org/pub/linux/kernel/projects/rt/4.4/4.4/patch-4.4.148-rt165.patch.xz You can also build from 4.4.145-rt162 by applying the incremental patch: http://www.kernel.org/pub/linux/kernel/projects/rt/4.4/4.4/incr/patch-4.4.145-rt162-rt165.patch.xz Enjoy! Daniel