894312 - Assertion failure: mDescriptor.type() == SurfaceDescriptor::TSharedTextureDescriptor

Status: NEW

(Core :: Graphics: Layers, defect)

Description

[Timothy B. Terriberry (:derf)]

This appeared several times in adb logcat shortly before the assertion:

E/memalloc( 1898): /dev/pmem: No more pmem available
W/memalloc( 1898): Falling back to ashmem
I/Gecko   ( 2145): [Child 2145] WARNING: nsWindow::GetNativeData not implemented for this type: file /media/stax1500/src/mozilla/B2G/mozilla-central/widget/xpwidgets/PuppetWidget.cpp, line 670
I/Gecko   ( 2145): [Child 2145] WARNING: We don't support transparent content with displayports, force it to be opqaue: file /media/stax1500/src/mozilla/B2G/mozilla-central/layout/base/nsDisplayList.cpp, line 1193

In bug 852734 comment 97 bjacob asks:
> Why would we possibly have mDescriptor.type() !=
> SurfaceDescriptor::TSharedTextureDescriptor here, if the descriptor is valid? I.e. what
> other type of descriptor could we get?

That sounds like an excellent question.