Comment 12 for bug 1799235

Hi again: So, I tried both with restored default bios settings and default factory setting. The kworker process is still going at over 85%. I can turn it off w/ echo "disable" > /sys/firmware/acpi/interrupts/gpe6F in both cases.

One odd thing I noticed. With the default settings, I have two devices I can boot from, one is ubuntu and the other is UEFI. If I try to boot from UEFI, I get an error message saying it can't start (can't find boot order?) and that it is changing the settings. When I look in the BIOS after this, the setting change I see is that ubuntu is now first in boot order. It boots fine after that.

I also tried running the system with Secure Boot, after erasing virtualbox. This also has no effect on the kworker process. And, when I reinstalled VirtualBox, it gave me the option to create a MOK key and put it in place, which I did. System now starts with Secure Boot and VirtualBox on it (yay, progress!). kworker process continues to fire up at 85%+.

Given that the out of control kworker process seems to be called by kthreadd, the 2nd process after system init (process 1), I'm guessing that it isn't something in the software on my system that is causing the issue. Maybe it's the specific hardware I have. Do you have a lshw?

Peter