https://bugs.freedesktop.org/show_bug.cgi?id=93101
--- Comment #7 from Christian König deathsimple@vodafone.de --- (In reply to Thomas DEBESSE from comment #6)
Hi, thank you for your answer, does this mean there is no fix possible to prevent the driver to burn the cpu in case of hang?
No, not really.
We should of course try to fix the hang and that's why I think we should keep this bug open, but driver bugs like this can always happen and not only in radeon but other kernel drivers as well.
As I said that's why dedicated hardware independent of the main CPU is usually used for things like this.
IIRC there is also a rather big warning in the fancontrol manual about this.