Created attachment 849034 [details]
manually copied Logs

After Kernel updated to 5.12.0, I faced several issues

1.The system suddenly completely freezing and doesn't respond to anything
except forcibly Reboot(Alt+SysRq+B) and without any Logging, and happening at
different times such as Web browsing or running a Qemu/KVM VM.

2.The shutdown process takes a long time(several minutes).

3.In the system journal, several BUGs are logged from the Kernal and Kfence.

Currently, the Kernel Updated to 5.12.0-1.2 and 5.12.0-2.1, and the above
issues are remaining

I'm not sure about this, But one time before system freezing, Accidentally Task
manager was open and I see 'kswapd0' process consuming high CPU, But after
rebooting, I disabled Swap(By 'swapoff'), But not solved the issue.

I upload an attachment that contains only important Logs(copied manually) and
also upload the system journal Logs(since some days before the Kernel update
until now) that accessible from the below link

https://drive.google.com/file/d/1JG-bJOWuQuA1SGuDgkNX0UlWJqbfBnpV/view?usp=sharing