1485358 - Crash in static void PurgeWRGlyphAtlas

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, defect)

Description

[Calixte Denizet (:calixte)]

This bug was filed from the Socorro interface and is
report bp-aca1a799-bcee-4268-b5ff-49fdd0180822.
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Top 10 frames of crashing thread:

0 xul.dll static void PurgeWRGlyphAtlas gfx/thebes/gfxFontMissingGlyphs.cpp:236
1 xul.dll gfxPlatform::OnMemoryPressure gfx/thebes/gfxPlatform.cpp:474
2 xul.dll mozilla::layers::MemoryPressureObserver::Observe gfx/layers/MemoryPressureObserver.cpp:67
3 xul.dll nsObserverService::NotifyObservers xpcom/ds/nsObserverService.cpp:295
4 xul.dll mozilla::dom::ContentChild::RecvFlushMemory dom/ipc/ContentChild.cpp:2747
5 xul.dll mozilla::dom::PContentChild::OnMessageReceived ipc/ipdl/PContentChild.cpp:7348
6 xul.dll void mozilla::ipc::MessageChannel::DispatchMessageW ipc/glue/MessageChannel.cpp:2166
7 xul.dll mozilla::ipc::MessageChannel::MessageTask::Run ipc/glue/MessageChannel.cpp:2045
8 xul.dll nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1167
9 xul.dll NS_ProcessNextEvent xpcom/threads/nsThreadUtils.cpp:519

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There are 2 crashes (from 1 installation) in nightly 63 with buildid 20180821220101. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1479196.

[1] https://hg.mozilla.org/mozilla-central/rev?node=07dabfefeef1

Comment 1

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/4621d2fd3f17
fix purging of missing glyph WebRender users. r=me

Comment 3

[Cristian Brindusan [:cbrindusan]]

https://hg.mozilla.org/mozilla-central/rev/4621d2fd3f17