Hi, today I build 4.14.18-rt15 and now dmesg shows this: [rocketmouse@archlinux ~]$ dmesg | grep microcode [ 0.000000] microcode: microcode updated early to revision 0x23, date = 2017-11-20 [ 0.000000] Intel Spectre v2 broken microcode detected; disabling Speculation Control [ 0.469182] microcode: sig=0x306c3, pf=0x2, revision=0x23 [ 0.469263] microcode: Microcode Update Driver: v2.2. [rocketmouse@archlinux ~]$ hwinfo --cpu | grep Model | sort -u Model: 6.60.3 "Intel(R) Celeron(R) CPU G1840 @ 2.80GHz" [rocketmouse@archlinux ~]$ pacman -Q intel-ucode intel-ucode 20180108-1 [rocketmouse@archlinux ~]$ uname -a Linux archlinux 4.14.18-rt15-1-rt-securityink #1 SMP PREEMPT RT Sat Feb 10 09:46:04 CET 2018 x86_64 GNU/Linux :( Regards, Ralf