1300460 - WebGL 1.0.3 conformance crash: conformance/extensions/oes-element-index-uint.html

Status: NEW

(Core :: Graphics: CanvasWebGL, defect, P3)

Description

[Luke]

Steps to Reproduce:
1. In Nightly with Intel HD 5000, go to https://www.khronos.org/registry/webgl/conformance-suites/1.0.3/conformance/extensions/oes-element-index-uint.html?webglVersion=1

Firefox 51.0a1 (2016-09-04) crashes
Firefox 48.0.2 Passes

about:support
Description	Intel Open Source Technology Center -- Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2)
Vendor ID	Intel Open Source Technology Center
Device ID	Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2)
Driver Version	3.0 Mesa 11.2.0

Comment 1

[Luke]

I bisected this regression down to:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=8ef9629d8f90d6507b1bad01146b14101de79174&tochange=30fa88c82366a358f412ca2cc3268142c8991f0d

A couple more points. You must go to Preferences->Disable 'multi-process Nightly'. 

The console error message is "intel_do_flush_locked failed: No such file or directory"

Jeff,
Any idea what might be causing this?

Comment 2

[Kelsey Gilbert [:jgilbert]]

(In reply to Luke from comment #1)
> I bisected this regression down to:
> https://hg.mozilla.org/mozilla-central/
> pushloghtml?fromchange=8ef9629d8f90d6507b1bad01146b14101de79174&tochange=30fa
> 88c82366a358f412ca2cc3268142c8991f0d
> 
> A couple more points. You must go to Preferences->Disable 'multi-process
> Nightly'. 
> 
> The console error message is "intel_do_flush_locked failed: No such file or
> directory"
> 
> Jeff,
> Any idea what might be causing this?

No.