1543381 - Plugin async rendering leverages PluginSurfaceParent which can trigger blocked sys calls

Status: RESOLVED DUPLICATE of bug 1544058

(Core Graveyard :: Plug-ins, task)

Description

[Jim Mathies [:jimm]]

When we're running with async plugin painting we have shared surfaces which we share with the plugin. In some cases we share an accelerated surface and in other we share a DIB. Pretty sure the set up here for these triggers calls that would be blocked. (In tests we pick up the dib usage below.)

https://searchfox.org/mozilla-central/rev/dd7e27f4a805e4115d0dbee70e1220b23b23c567/dom/plugins/ipc/PluginInstanceParent.cpp#772

https://searchfox.org/mozilla-central/rev/dd7e27f4a805e4115d0dbee70e1220b23b23c567/dom/plugins/ipc/PluginInstanceParent.cpp#727

win32u!NtGdiSelectBitmap
gdi32full!SelectObjectImpl
xul!mozilla::gfx::SharedDIBWin::Attach
xul!mozilla::gfx::SharedDIBSurface::Attach
xul!mozilla::plugins::PluginSurfaceParent::PluginSurfaceParent
xul!mozilla::plugins::PPluginInstanceParent::OnMessageReceived
xul!mozilla::ipc::MessageChannel::DispatchAsyncMessage
xul!mozilla::ipc::MessageChannel::DispatchMessage

win32u!NtGdiSetIcmMode
gdi32full!IcmSelectColorTransform
gdi32full!IcmDeleteLocalDC
GDI32!InternalDeleteDC
GDI32!InternalDeleteObject
GDI32!DeleteObject
xul!mozilla::gfx::SharedDIBWin::Close
xul!mozilla::gfx::SharedDIBWin::~SharedDIBWin
xul!mozilla::gfx::SharedDIBSurface::~SharedDIBSurface
xul!_cairo_user_data_array_fini
xul!_moz_cairo_surface_destroy
xul!gfxASurface::Release

Comment 1

[Jim Mathies [:jimm]]

win32u!NtGdiCreateDIBSection
gdi32full!CreateDIBSectionInternal
gdi32full!CreateDIBSection
GDI32!CreateDIBSectionStub
xul!mozilla::gfx::SharedDIBWin::Attach
xul!mozilla::gfx::SharedDIBSurface::Attach
xul!mozilla::plugins::PluginSurfaceParent::PluginSurfaceParent
xul!mozilla::plugins::PPluginInstanceParent::OnMessageReceived
xul!mozilla::ipc::MessageChannel::DispatchAsyncMessage
xul!mozilla::ipc::MessageChannel::DispatchMessage

31 -win32u!NtGdiCreateCompatibleDC
win32u!NtGdiCreateCompatibleDC
gdi32full!CreateCompatibleDC
xul!mozilla::gfx::SharedDIBWin::Attach
xul!mozilla::gfx::SharedDIBSurface::Attach
xul!mozilla::plugins::PluginSurfaceParent::PluginSurfaceParent
xul!mozilla::plugins::PPluginInstanceParent::OnMessageReceived
xul!mozilla::ipc::MessageChannel::DispatchAsyncMessage
xul!mozilla::ipc::MessageChannel::DispatchMessage