Bug 36972

Summary: fast/canvas/webgl/index-validation.html failed randomly if antialias is on
Product: WebKit Reporter: Zhenyao Mo <zmo>
Component: WebGLAssignee: Zhenyao Mo <zmo>
Status: RESOLVED FIXED    
Severity: Normal CC: commit-queue, eric, kbr, oliver
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: PC   
OS: OS X 10.5   
Attachments:
Description Flags
patch none

Zhenyao Mo
Reported 2010-04-01 10:39:22 PDT
See https://bugs.webkit.org/show_bug.cgi?id=33416 This random failure might be caused by a hardware/driver bug, likely some unwanted competition is going on.
Attachments
patch (1.36 KB, patch)
2010-04-21 18:29 PDT, Zhenyao Mo
no flags
Zhenyao Mo
Comment 1 2010-04-01 10:41:43 PDT
Observation (not sure if it's of any value): I used to be able to reproduce this failure on my Mac the first run after I just rebuilt the webkit, but not any later runs; right now I am unable to reproduce it on my machine anymore.
Zhenyao Mo
Comment 2 2010-04-01 11:39:28 PDT
Eric Seidel (no email)
Comment 3 2010-04-07 13:21:12 PDT
If this is a bug in Mac OS X software, you need to report it at http://radar.apple.com/ to have it looked at. This tracker is only for WebKit bugs.
Zhenyao Mo
Comment 4 2010-04-07 13:42:38 PDT
Yes, we will file a bug there.
Zhenyao Mo
Comment 5 2010-04-21 18:25:42 PDT
Seems like the issue is not hardware/driver bug, but the uninitialized variables in Mac port. See https://bugs.webkit.org/show_bug.cgi?id=36908 Going to turn on anti-alias / stencil again as default canvas attributes for tests.
Zhenyao Mo
Comment 6 2010-04-21 18:29:00 PDT
Created attachment 54012 [details] patch Anti-alias and stencil were turned off from default canvas attribute set when we try to pin-point the cause of these random failures; now seems like they are not the cause, we turn them back on.
Eric Seidel (no email)
Comment 7 2010-04-21 18:30:12 PDT
Comment on attachment 54012 [details] patch OK.
WebKit Commit Bot
Comment 8 2010-04-22 05:28:53 PDT
Comment on attachment 54012 [details] patch Clearing flags on attachment: 54012 Committed r58090: <http://trac.webkit.org/changeset/58090>
WebKit Commit Bot
Comment 9 2010-04-22 05:28:59 PDT
All reviewed patches have been landed. Closing bug.
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