[Nouveau] [Bug 90569] [NV67] GUI freezes after startup of Ubuntu 15.04. on Aspire 7520p [BUG: unable to handle kernel paging request at f84c8000]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90569

--- Comment #2 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Does this patch help at all?

http://lists.freedesktop.org/archives/nouveau/2015-June/021416.html

I believe the conditions are the same as the ones I hit...

  25:   01 f2                   add    %esi,%edx
...
  2b:*  89 0a                   mov    %ecx,(%edx)              <-- trapping
instruction

ESI: f84b8000
EDX: f84c8000

So you're going over the 0x10000 size of the ring.

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