Hello, I have an unraid system that has been working well until 2 days ago, when it just stopped and when restarted comes up with the following screen display. It does get to the blue screen of boot selections of unraid, but after a few seconds it ends up with:

kworker/u8:B[9] exited with preempt_count 1

tried a few shutowns and restarts. I can't see much online about this error.

 

Would anyone have an idea of what may be wrong looking at this video. sorry for not best quality. Client took the video.

Try booting with a new flash drive using a stock install, no key needed, that will confirm if the flash/install or the server is the problem

ok now I have server onsite. booted with new USB stick and it wont boot. tested stick in another machine. boots fine.

now getting to area doing module trace and then stops with clocksource :switched to clocksource tsc and sts there.

all sorted . seems a fault in the motherboard is causing it. replaced and fixed