This is a laptop, and yes, disable SMP is a known work-around. I didn't check if it's related to AC/battery. Upstream for intel-microcode package is https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files, and this has been reported as https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/24.
This is a laptop, and yes, disable SMP is a known work-around. I didn't check if it's related to AC/battery. Upstream for intel-microcode package is https:/ /github. com/intel/ Intel-Linux- Processor- Microcode- Data-Files, and this has been reported as https:/ /github. com/intel/ Intel-Linux- Processor- Microcode- Data-Files/ issues/ 24.