VirtualGL stops working after a while

[Sam]

Hi.

I'm running in to an issue where VirtualGL works flawlessly for a while after booting the system, but then develops problems after a short time (5 mins or so). Using glxgears as an example, these problems manifests as either a black window or corrupted images being displayed by the client. nvidia-smi shows glxgears running on the GPU whilst the black/corrupted window is shown, though the framerate reported by glxgears is very low (~0.3FPS). Other applications also initially run perfectly, but then fail to start or show corrupted graphics a few minutes following boot.

My configuration:

- CentOS 7

- Nvidia Quadro P2000, passed through to a VM running VirtualGL via VFIO.

- Latest VirtualGL dev version (2.6.80-20190717)

- Latest TurboVNC dev verison (2.2.80-20190803)

Earlier versions of VirtualGL/TurboVNC show the same symptoms. A variety of Nvidia driver versions also show the same symptoms. Running vglrun with the +v verbose flag shows no errors.

This has been a bit of a tricky one to diagnose, so any thoughts would be useful.

Cheers

Sam.

[DRC]

Since no one else has reported this, I would strongly suspect your GPU pass-through configuration.  Is the issue reproducible when directly accessing the GPU without a VM?

[Samuel Ingarfield]

I noticed later this morning that a kernel update was available - since installing this update, the system seems to be behaving itself... 

I'll keep an eye on it over the next few days and see if it reappears.

Ta

Sam.

--
You received this message because you are subscribed to the Google Groups "VirtualGL User Discussion/Support" group.
To unsubscribe from this group and stop receiving emails from it, send an email to virtualgl-use...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/virtualgl-users/221e98cb-694a-5df1-692c-ed317c785e12%40virtualgl.org.