[Nouveau] [Bug 70354] [NVE6, NVE7] HUB_INIT timeout on graph init, blob fw doesn't help

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70354

--- Comment #33 from Karol Herbst <karolherbst at me.com> ---
Created attachment 106965
  --> https://bugs.freedesktop.org/attachment.cgi?id=106965&action=edit
mmiotrace when failing

the diff between both traces is quite interessting. Both happend on the same
machine, the same kernel and the same nouveau.ko file on the same gpu.

Especially the part in the failing trace starting with this:

"[0] 0.000000, FB32 28c <= 1
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
[0] 0.000000, FB32 219010 => 0
... until timeout
"

because this part never happen in the "working" trace

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