memory leak in XenServer dom0 when vGPU is used

Hello

I'm facing rather big problem with dom0 memory in Citrix Hypervisor 8.0. Time to time, vpgu processes memory consumption goes all of a sudden up and and I see warnings in XenCenter.

I can't RDP to this VM and Citrix connections don't work too.

If I look at the 'top' command, I see something like this:

14182 root 20 0 3012392 2.3g 27792 S 0.3 29.7 983:59.28 vgpu
12972 root 20 0 2881288 2.2g 29864 S 4.3 28.9 974:58.83 vgpu

vgpu processes consume quite a lot of memory, more and more in time, which results in that unpleasant situation described above.

What I have to do is to restart VM to get these vgpu processes to zero.

What is general experience with this problem and how to solve it permanently? Many thanks for help.

Citrix mentions problem here:
https://support.citrix.com/article/CTX265644?_ga=2.170814624.1460097404.1580991164-505669469.1580214199

We're running with 425 and 430 versions of nvidia driver.