nouveau: Where are module parameters stored?

Question

I have been trying to debug a bug with nouveau and I would like now to remove the previous setting.

Here is what I see:

% dmesg | grep nouveau
[...]
[    1.487361] [drm:nouveau_drm_init [nouveau]] ... debug        : PTHERM=debug,PTIMER=debug

Which is compatible with:

# cat /sys/module/nouveau/parameters/debug 
PTHERM=debug,PTIMER=debug

Where is this setting stored ?

I tried a naive:

% find /etc/modprobe.d 
/etc/modprobe.d
/etc/modprobe.d/nouveau.conf

which gives:

% cat /etc/modprobe.d/nouveau.conf
# debug nouveau
options nouveau debug="PFIFO=debug"

Answer 1

Since nouveau is starting from initramfs.

In order to change the load options for this kind of modules one need to run

sudo update-initramfs -u

to get the setting applied.