HWE Kernel in xenial-testing resolves the issue as well
/proc/version_signature Ubuntu 4.13.0-39.44~16.04.1-generic 4.13.16 /proc/cmdline BOOT_IMAGE=/@/boot/vmlinuz-4.13.0-39-generic root=UUID=7dcb6f6f-1069-4315-a421-0d60fffecef9 ro rootflags=subvol=@ dmesg -t | grep -i microcode microcode: microcode updated early to revision 0x2d, date = 2018-02-07 microcode: sig=0x206a7, pf=0x2, revision=0x2d microcode: Microcode Update Driver: v2.2.
HWE Kernel in xenial-testing resolves the issue as well
/proc/version_ signature 39.44~16. 04.1-generic 4.13.16 /@/boot/ vmlinuz- 4.13.0- 39-generic root=UUID= 7dcb6f6f- 1069-4315- a421-0d60fffece f9 ro rootflags=subvol=@
Ubuntu 4.13.0-
/proc/cmdline
BOOT_IMAGE=
dmesg -t | grep -i microcode
microcode: microcode updated early to revision 0x2d, date = 2018-02-07
microcode: sig=0x206a7, pf=0x2, revision=0x2d
microcode: Microcode Update Driver: v2.2.