1484624 - Crash in mozilla::gl::GLContext::MakeCurrent const

Status: RESOLVED FIXED

(Core :: Graphics, defect)

Description

[Gabriele Svelto [:gsvelto]]

This bug was filed from the Socorro interface and is
report bp-6bcb0a91-c2f1-4809-b3a0-b30480180801.
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Top 10 frames of crashing thread:

0 XUL mozilla::gl::GLContext::MakeCurrent const gfx/gl/GLContext.h:3372
1 XUL mozilla::layers::DirectMapTextureSource::UpdateInternal gfx/layers/opengl/TextureHostOGL.cpp:360
2 XUL mozilla::layers::CompositorOGL::CreateDataTextureSourceAround mfbt/RefPtr.h:658
3 XUL mozilla::layers::BufferTextureHost::EnsureWrappingTextureSource gfx/layers/composite/TextureHost.cpp:752
4 XUL mozilla::layers::BufferTextureHost::PrepareTextureSource gfx/layers/composite/TextureHost.cpp:838
5 XUL mozilla::layers::ImageHost::SetCurrentTextureHost gfx/layers/composite/ImageHost.cpp:128
6 XUL mozilla::layers::ImageHost::UseTextureHost gfx/layers/composite/ImageHost.cpp:75
7 XUL mozilla::layers::CompositableParentManager::ReceiveCompositableUpdate gfx/layers/ipc/CompositableTransactionParent.cpp:169
8 XUL mozilla::layers::ImageBridgeParent::RecvUpdate gfx/layers/ipc/ImageBridgeParent.cpp:202
9 XUL mozilla::layers::PImageBridgeParent::OnMessageReceived ipc/ipdl/PImageBridgeParent.cpp:235

=============================================================

We encountered a similar issue in bug 1427112, the signature is the same but the stack is not so it's probably unrelated.

Comment 1

[Nicolas Silva [:nical]]

Attachment: Bug 1484624 - Don't create texture sources if the compositor doesn't have a GL context. r=sotaro

Comment 2

[Nicolas Silva [:nical]]

From the stack trace of the report and other similar signatures it appears that we are asking a gl compositor with no valid gl context to create a DirectMapTextureSource, which end up holding on to a null gl context reference. I added some checks to DirectMapTextureSource and also made sure it checks the result of MakeCurrent. I also avoided creating the texture source at all if there is no valid context since that's a better place to handle this particular issue IMO.

Comment 3

[Sotaro Ikeda [:sotaro]]

Comment on attachment 9002713 [details]
Bug 1484624 - Don't create texture sources if the compositor doesn't have a GL context. r=sotaro

Sotaro Ikeda [:sotaro] has approved the revision.

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/389ffe7befee
Don't create texture sources if the compositor doesn't have a GL context. r=sotaro

Comment 5

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

https://hg.mozilla.org/mozilla-central/rev/389ffe7befee