I encountered unexpected freezing of my ASUS UX303UB after software update. First it happened after some longer time of operation, recently quite soon after restart. It happened very often and only hard restart was possible.
I reinstalled the system many times, it helped shortly. I also created a new user, as adviced on forum in other threads. I checked also if my SSD disk is not broken.
As I get always information [Firmware Bug]: ACPI region does not cover the entire command/response buffer) I tried ACPI option OFF, what initially helped, later no more.
In version 4.4.120 I got additionally information on Spectre vulnerability, that was not shown on 4.4.114. I started to check it in older versions of kernel with command grep . /sys/devices/system/cpu/vulnerabilities/* until I got in version 4.4.104 result “No such file or catalogue”
Surprisingly my notebook started to work normally and ideally stable with this version of Kernel. I work now over 5 days, many hours a day. No bad issues.
Is it possible that Spectre/Meltdown protection in Kernel may freeze my notebook?