[Webkit-unassigned] [Bug 107812] [Qt] Hidden WebView triggers crash on exit.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=107812


Jocelyn Turcotte <jocelyn.turcotte at digia.com> changed:

           What    |Removed                     |Added
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                 CC|                            |jocelyn.turcotte at digia.com




--- Comment #1 from Jocelyn Turcotte <jocelyn.turcotte at digia.com>  2013-01-24 06:00:03 PST ---
My quick look at this issue is that LayerTreeRenderer::purgeGLResources is called immediately in the UI process before CoordinatedLayerTreeHost::purgeBackingStores had the time to complete in the WebProcess. So any message sent from the WebProcess in-between might access resources that, at this point, the web process thought valid but that the UI process already cleared.

I didn't investigate very deep so this might be wrong, but a way that seemed worth trying to fix this was to make sure that LayerTreeRenderer::purgeGLResources is only called once the web process confirmed that id destroyed the resource through some didPurgeBackingStores message.

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