Nvidia Driver with KVM passthrough

[T.J. Duchene]

I'm sorry to bother all of you. Pardon me if this is not the proper 
place to discuss such matters. I am not certain if this should qualify 
as a bug report against the nvidia-driver package because it is probably 
a low instance scenario - but it is consistent and appears to be able to 
be replicated.

I can't file it against Debian Jessie because I am not using the 
packaged driver.


I have two nvidia cards: a 960 and a 1060.  When I install the nvidia 
driver from Jessie backports,  Qemu freezes when I try to passthrough 
the 1060 without logging an error.  The only way to stop it is to force 
kill it or reset at that point.

When I do the same on Ubuntu 16.04's installer, the same thing happens - 
no logged error that I can find and the VM is frozen.

However, when I take the exact same version of the driver that Ubuntu 
uses and manually install it on 16.04 everything functions normally 
using Nvidia's installer.

I have attempted to replicate the same results on Debian Jessie 
unsuccessfully.

I've looked at some of the installed files and the VFIO device nodes and 
I have not detected any significant differences.  Because the manual 
install of the exact same driver works on Ubuntu 16.04, so I do not 
believe it is a kernel patch of some kind as to why it works on one but 
not the other.

I have tested this and replicated the exact same results several times. 
I'm starting to wonder if it is an issue with the package installer.

If you would like more information, such as configuration data, I'll be 
happy to provide it.  At this point I need some advice on how to proceed.

Should I file a regular bug report, and if so - where?

Thanks,
T.J.