Comment 9 for bug 1900391

I'm also experiencing this bug, started with the latest kernel update.

$ cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.4 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.4 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

$ uname -a
Linux FULGUR-KUBUNTU 5.15.0-41-generic #44~20.04.1-Ubuntu SMP Fri Jun 24 13:27:29
UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Processor: Intel i7-5820K
Motherboard: ASRock X99 Extreme4 LGA 2011-v3
Chipset: x99

ECC RAM is not supported on my system (only on Xeon processors)