[Bug 206299] [nouveau/xen] RTX 20XX instant reboot

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=206299

--- Comment #7 from Frédéric Pierret (frederic.epitre at orange.fr) ---
With Marek, we think to found the problem. In nv50_disp_chan_mthd function, the
exact NULL pointer reference is mthd->data[0]->mthd. Precisely,  mthd->data is
not null but mthd->data[0] seems so.

Trying to access mthd->data[0] we get:
  BUG: kernel NULL pointer dereference, address: 0000000000000010
while trying to access mthd->data[0]->mthd, we get:
  BUG: kernel NULL pointer dereference, address: 0000000000000020

So this is exactly the issue. Any idea why mthd->data and not mthd->data[0]?

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