[6.13.6 stable regression?] Nouveau reboot failure in r535_gsp_msg_recv()

[David Woodhouse]

On Mon, 2025-04-07 at 18:30 +0000, Timur Tabi wrote:
> On Mon, 2025-04-07 at 17:14 +0000, Timur Tabi wrote:
> > What I need now are the GSP-RM logs.  In your /etc/modprobe.d, see if
> > there
> > is a file with "options nouveau".  If there isn't, create one, and then
> > add
> > the "keep-gsp-logging=1" parameter, so it looks something like this:
> > 
> > 	options nouveau keep-gsp-logging=1
> > 
> > Reboot and then tell me if you see anything like this:
> 
> Ugh, I just noticed that this feature is probably not in 6.13.  It was added
> in 6.14, so unless you're willing to upgrade to 6.14, this might be a dead
> end.  Sorry.

I'd already upgraded to 6.14, and have just rebooted into 6.14.1 with
that option enabled. I now have the four files in debugfs of which you
spoke, but I'm assuming you don't actually want them until something
*interesting* happens, like the onboard HDMI failing to connect and/or
the GSP-RM crashing again?

> > Any clues on how to debug the USB-C output, and where to report that?
> 
> No, I can't help with that.

At this point I have no clue even where to start.

I don't know what is responsible for establishing that there's
something connected to that USB-C which is capable of DisplayPort, and
how that's supposed to be visible to the nouveau driver...

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