"invalid mailbox name" errors on Chrome 65 / Android

[Daniel Wabyick]

Hello,

We're developer an (emscripten cross-compiled) WebGL application that does relatively simply 2D texture drawing.  

On Android / Chrome 65, we started hitting a number of errors like the following, and our textures would not get drawn.  Reproduced on a Nexus 6P and a Samsung Galaxy S7. 

[.Offscreen-For-WebGL-0xe11db900]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name

(index):1 [.Offscreen-For-WebGL-0xe11db900]GL ERROR :GL_INVALID_VALUE : glCopySubTextureCHROMIUM: invalid source texture target binding

The great news is we tested Chrome 66/67 and this error does not appear to happen on either device.

Is there a particular bug fix that might have addressed this?

Thanks,

Daniel

[Sunny Sachanandani]

This sounds like a synchronization bug. Please open a bug at crbug.com/new with repro instructions and contents of chrome://gpu, and post the bug id here.

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Sunny