1482415 - Crash in mozilla::layers::ContentClientRemoteBuffer::EndPaint

Status: RESOLVED FIXED

(Core :: Graphics: Layers, defect)

Description

[Marcia Knous [:marcia]]

This bug was filed from the Socorro interface and is
report bp-bbc2ff4d-db6e-4e92-a4df-21f790180810.
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Seen while looking at nightly crashes - crashes started using 20180810100128: https://bit.ly/2AZe4FQ. Two unique signatures spotted so far.

Possible regression range based on Build ID: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=cea8cf3f6abefaccb80a640b47aad8bcdb3115ae&tochange=d999fb858fb2c007c5be4af72bce419c63c69b8e

Looks as if Bug 1478815 touched code in this area. ni on rhunt

Top 10 frames of crashing thread:

0 xul.dll mozilla::layers::ContentClientRemoteBuffer::EndPaint gfx/layers/client/ContentClient.cpp:617
1 xul.dll mozilla::layers::ClientPaintedLayer::RenderLayerWithReadback gfx/layers/client/ClientPaintedLayer.cpp:171
2 xul.dll mozilla::layers::ClientContainerLayer::RenderLayer gfx/layers/client/ClientContainerLayer.h:58
3 xul.dll bool mozilla::layers::ClientLayerManager::EndTransactionInternal gfx/layers/client/ClientLayerManager.cpp:386
4 xul.dll mozilla::layers::ClientLayerManager::EndTransaction gfx/layers/client/ClientLayerManager.cpp:444
5 xul.dll nsDisplayList::PaintRoot layout/painting/nsDisplayList.cpp:2759
6 xul.dll nsLayoutUtils::PaintFrame layout/base/nsLayoutUtils.cpp:3842
7 xul.dll mozilla::PresShell::Paint layout/base/PresShell.cpp:6349
8 xul.dll nsViewManager::ProcessPendingUpdatesForView view/nsViewManager.cpp:412
9 xul.dll nsRefreshDriver::Tick layout/base/nsRefreshDriver.cpp:2042

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Comment 1

[Ryan Hunt [:rhunt]]

Attachment: content-client-crash.patch

This can happen if we fail to allocate a buffer in BeginPaint but have tried to start an async paint.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/fea8a70ad612
Handle case where we failed to allocate a buffer and are async painting. r=nical

Comment 3

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/fea8a70ad612