This isn’t specifically an OpenSUSE problem I don’t think but I’m not sure which project to raise the issue with and I’d appreciate assistance with anyone here who better understands the problem. I’d like to be able to gather enough information about the problem to be able to raise it with the correct people and with the necessary supporting info.
The problem is this. I run 42.3 as host OS, Oracle VirtualBox v5.2.8 and a Windows 7 guest. I also have the proprietary Nvidia drivers installed (384.111). While the VirtualBox guest machine is running, memory used by the X process increases steadily to the point where it occupies all available RAM and KDE crashes (the error is with kcmserver if that matters). X memory usage is currently at 243,884K, after logging out of KDE approximately an hour ago, logging back in and starting the VM guest.
This error has existed since upgrading from VirtualBox 4, and I can’t now installed v4, because the kernel drivers will not compile on my kernel version (4.4.104-39-default).
I’ve tried disabling 3D acceleration in the guest and that doesn’t resolve the issue.
Closing the VM does not free up the occupied memory, it requires X to be killed (or the DE to be logged out which achieves the same thing). Due to this fact the one support ticket about this issue I found on the VirtualBox bug tracker pointed the finger at the X server (which I think is Xorg?)
Can anyone help identify what the problem might be and how I go about resolving it?