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Maximizing glxgears -> texture_desc_init: The buffer is not large enough

Submitted by Lauri Kasanen @cand

Assigned to xf86-video-ati maintainers

Link to original bug (#42085)

Description

Originally filed as a mesa bug here:
https://bugs.freedesktop.org/show_bug.cgi?id=42050

Running -git ati (856583db) and maximizing glxgears, the DDX gives too small a buffer to Mesa:

r300: I got a pre-allocated buffer to use it as a texture storage, but the buffer is too small. I'll use the buffer anyway, because I can't crash here, but it's dangerous. This can be a DDX bug. Got: 5083136B, Need: 5087232B, Info:
r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1472, Dim: 1438x863x1, LastLevel: 0, Size: 5087232, Format: x8z24_unorm

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