[Nouveau] [Bug 36744] [NVA5] BUG: unable to handle kernel NULL pointer dereference

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=36744

--- Comment #2 from Patrice Mandin <patmandin at gmail.com> 2011-05-23 02:11:14 PDT ---
In nouveau_card_init() function (nouveau_state.c file), engine->fifo.init()
function is not called when nouveau_noaccel is enabled.

On NV50/NVA0 cards, engine->fifo.init = nv50_fifo_init (nv50_fifo.c file) and
this function is responsible to fill pfifo->playlist array, which is not done
with nouveau_noaccel enabled.

When nv50_fifo_playlist_update() is called, accessing pfifo->playlist (which
was not initialized) triggers the NULL pointer dereference.

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