[Nouveau] [Bug 93004] Guild Wars 2 crash on nouveau DX11 cards

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93004

--- Comment #3 from Patrick Rudolph <siro at das-labor.org> ---
For the crash that occurs in nvc0_clear() I found it is likely a use after
free.
It accesses a pipe_resource that has been destroyed, but is still bound.
The correct behaviour of nine would be to call set_vertex_buffers(..., NULL)
first and then destroy the resource.
What does OpenGL on vertexbuffer destruction ?
Question is why does it work on other drivers, like R600 ?

For the second crash in nvc0_draw_vbo() I'm still investigating.

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