Most likely this is a kernel bug so the next step would be to try some newer or older kernels and see if any of them DO NOT have the same bug. Then hopefully we can identify when things changed.
https://kernel.ubuntu.com/~kernel-ppa/mainline/
Most likely this is a kernel bug so the next step would be to try some newer or older kernels and see if any of them DO NOT have the same bug. Then hopefully we can identify when things changed.
https:/ /kernel. ubuntu. com/~kernel- ppa/mainline/