[Webkit-unassigned] [Bug 141567] WebGL: Destroy the GLContext is a GPU restart has been detected.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=141567

--- Comment #2 from Dean Jackson <dino at apple.com> ---
Comment on attachment 246534
  --> https://bugs.webkit.org/attachment.cgi?id=246534
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=246534&action=review

> Source/WebCore/platform/graphics/mac/WebGLLayer.mm:93
> +    GLint restartStatus = 0;
> +    CGLGetParameter(glContext, kCGLCPGPURestartStatus, &restartStatus);
> +    if (restartStatus == kCGLCPGPURestartStatusCaused || restartStatus == kCGLCPGPURestartStatusBlacklisted) {
> +        CGLDestroyContext(glContext);
> +        return;
> +    }
> +    

As discussed in IRC, I think we need a little more intelligence here.

1. Check that this triggers a WebGL context lost (or make sure that this does that)
2. Ensure a page doesn't keep recreating the context in this case and submitting the same bad data. Maybe allow 3 lost contexts before crashing the process?

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