Bug#888952: nvidia-driver and opencl

[Andreas Beckmann]

On 2018-02-05 08:02, Pascal Obry wrote:
> First, unload is not possible as nvidia is in use.

in that case you could either stop X and work in the console ...
or just do the following steps, since obviously only the nvidia-uvm
module in interesting here, there is no need for rebooting:

$ sudo modprobe -r nvidia_uvm		# unload
$ lsmod | grep nvidia_uvm		# expect empty result
$ nvidia-modprobe -u ; echo $?		# load it; print return code
$ lsmod | grep nvidia_uvm		# expect non-empty result
$ sudo nvidia-modprobe -u		# if previous load didn't
					# succeed, retry as root
$ lsmod | grep nvidia_uvm		# now it must be loaded


Are there any hardening settings enabled on your system that could
prevent this setuid executable from doing its job?
* filesystems mounted with option nosuid
* apparmor
* selinux
...

BTW, which version of the nvidia-modprobe package do you have installed?


Andreas