[Webkit-unassigned] [Bug 76239] DrawingBuffer is not cleared correctly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=76239





--- Comment #12 from yongsheng <yongsheng.zhu at intel.com>  2012-01-18 18:00:37 PST ---
> (In reply to comment #10)
> > This patch appears to have broken fast/canvas/webgl/drawingbuffer-test.html:
> > 
> > http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fcanvas%2Fwebgl%2Fdrawingbuffer-test.html
> 
> yongsheng, did you run the layout tests?
> 
> Filed https://bugs.webkit.org/show_bug.cgi?id=76562 to track this regression.
Sorry, I should notify that the fix for this might expose the failure for these kind of cases which don't occur before. This kind of failure is somewhat random. Actually both 2 cases are almost the same.
The reason could be see from here: http://code.google.com/p/chromium/issues/detail?id=104740#c5
This case is also to test DrawingBuffer. And the root cause of this case is the same. The failure is because of the V8 GC issue. 

There are 2 ways:
1) revert the patch and commit it together with the patch for #76225(release GL context).
2) Or don't revert it and it will get fixed with the patch for #76225.
what's your opinion? 

I should raise it clearly. It's my fault. Sorry about that.

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