Kernel 6.0+ show 0 kB for all values in smaps_rollup files

[Slater91]

Hello.

Since I updated the kernel to version 6.0, I noticed that KDE's System Monitor would not show any value under the "Memory" column. I opened an issue on KDE's bug tracker and we came to the conclusion that the issue lies with the kernel, as the /proc/$pid/smap_rollup file only shows 0 kB for all fields. This was not present in pre-6.0 kernels.

Would it be possible to check if the bug is indeed in the Xanmod kernel?

For reference, I am using kernel 6.0.9 on KDE neon (based on Ubuntu 22.04) on multiple machines, all with the same behaviour.

Thank you!