It's been a year and a half since I submitted this bug, I was on kernel 5.6.0 (mainstream from kernel.org) and now I'm on 5.13.19 and this error is no longer showing at boot time.
It's been a year and a half since I submitted this bug, I was on kernel 5.6.0 (mainstream from kernel.org) and now I'm on 5.13.19 and this error is no longer showing at boot time.