[Bug 10758] myst4 crashes during startup

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=10758





--- Comment #2 from Stefan Dösinger <stefandoesinger at gmx.at>  2007-12-12 19:22:39 ---
No, the fix is not correct, you should not return the auto depth stencil buffer
when the function is supposed to return the currently set depth stencil buffer.

It would be interesting to see what happens with the depth stencil that is
returned(0x138360 in your crash log), and it's d3d9 parent. What might go on
here is that the current depth stencil buffer surface is destroyed(thus the
memory is freed), then the app calls GetDepthStencil and WineD3D attempts to
AddRef the destroyed surface and segfaults because the memory isn't valid any
longer.

If this is true, then it will need some test to see what is supposed to happen
and then fixed. I suspect that releasing the current depth stencil to ref 0
either sets the depth stencil to NULL, or delays destroying it until it is
unset.


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