compute-runtime

compute-runtime copied to clipboard

Is there a way to reload/reset the driver to get rid of these dead processes? These are a result of running various Level Zero tests overnight.

Hi @pvelesko What are these processes, who spawned them?

We have a large set of tests that we run on the Level Zero backend. Some of these tests produce these processes which I can't figure out how to kill. I tried unbinding dgpu from the i915 driver, I tried kill -9, but so far the only way I've found is to :

alias reboot_hardcore="history -a && sudo sh -c 'echo b > /proc/sysrq-trigger'"

A regular reboot doesn't work either as the system just hangs while waiting on something. Is there a way to reset the driver completely? Since we can't unload the driver while it's in use.

Hello,

have you tried unbinding i915 like this ?

sudo sh -c "echo -n auto > /sys/bus/pci/devices/0000:00:02.0/power/control" sudo sh -c "echo -n "0000:00:02.0" > /sys/bus/pci/drivers/i915/unbind" sudo modprobe -r i915

PCI number can be found with:

lspci | grep -i display or lspci | grep -i vga

I'll try this, thank you.

modprobe: FATAL: Module i915 is in use. after unbinding devices.

hello, thanks for a try, Unloading i915 might not work if KMD is hanging somewhere, reboot should be the ultimate way of resetting.

Can you provide details for reproducing the issue? What platform is it? OS version i915 version possibly a reproducer Thanks