[Webkit-unassigned] [Bug 105158] [Qt][WK1]REGRESSION(r137811): compositing/tiling/crash-huge-layer.html makes the following test crash on 32 bit

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=105158





--- Comment #7 from Simon Hausmann <hausmann at webkit.org>  2012-12-17 05:04:36 PST ---
(In reply to comment #6)
> I think it is a WK1 texture mapper bug instead of REGRESSION(r137811).
> WK1 texture mapper does not have something like TiledBackingStore, so GraphicsLayerTextureMapper::prepareBackingStore can create tiles until consuming all system memory. However, Coordinated Graphics on WK2 uses TiledBackingStore so it ensures we can not consume memory within some threshold (currently cover rect that is about 9 times of the viewport).
> In my conclusion, we can not solve this problem until GrahpicsLayerTextureMapper uses TiledBackingStore as a backing store.

You're right, only WK1 uses TextureMapperTiledBackingStore. Darn.

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