[Nouveau] Advice about debugging nouveau driver suspend issue (init_on_alloc=1 and init_on_free=1)

[Computer Enthusiastic]

Hello,

Greeting to all list members.

I hope this mailing list is the right place to ask about it, otherwise
I apologize in advance and, please, direct me to the right mailing
list.

I would like to receive advice on how to debug (or help to debug) the
noveau kernel module suspend issue reported in [1][2][3]. The issue is
constantly reproducible and it consists in a  screen corruption with
system lockup on resume after suspend to ram or suspend to disk. It
seems to affect NV50 nvidia graphic cards at least from kernel 5.10.0
(probably from 5.2 or 5.3) up to 5.14.10 (I have not tested 5.15 in rc
state, actually).

Thanks in advance.

[1] https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/-/issues/547
[2] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989705
[3] https://bugzilla.kernel.org/show_bug.cgi?id=213617