[GTK] Epiphany with Debug mode compiled WebKitGtk+ 2.10.3 hits ASSERT_ARG on willEnterAcceleratedCompositingMode

• Component: WebKitGTK
• Status: RESOLVED FIXED

[Andres Gomez Garcia]

Created attachment 264208 [details]
BT from gdb

I'm using WebKitGtk+ with my own JHBuild setting:
https://github.com/tanty/jhbuild-epiphany/tree/wkgtk-devel

Epiphany 3.18.0 and WebKit 2.10.3

I'm running Epiphany with the dconf key:

"process-model" = "shared-secondary-process"

When visiting several pages, eventually, epiphany crashes.

This bug is not reproducible in a predictable way but happens quite often.

--

It seems, the crash happens when hitting:

#1  0x00007ffff13d6471 in willEnterAcceleratedCompositingMode () at /opt/gnome-os/tanty/epiphany/checkout/webkitgtk-2.10.3/Source/WebKit2/UIProcess/DrawingAreaProxyImpl.cpp:213
213         ASSERT_ARG(backingStoreStateID, backingStoreStateID <= m_currentBackingStoreStateID);

[Andres Gomez Garcia]

I forgot to comment. The compilation was done with CMake args:

"-DPORT=GTK -DCMAKE_BUILD_TYPE=Debug -DDEVELOPER_MODE=ON -DCMAKE_C_FLAGS_DEBUG=-g1 -DCMAKE_CXX_FLAGS_DEBUG=-g1"

[Carlos Garcia Campos]

My guess is that the web process enters in AC mode due to the layout that happens in UpdateBackingStorateState, and the WillEnterAC message is sent to the UI process before the DidUpdateBackingStoreState one. I'll investigate this.

[Carlos Garcia Campos]

Created attachment 264789 [details]
Patch

[Mario Sanchez Prada]

Comment on attachment 264789 [details]
Patch

Makes sense to me, thanks!

[Carlos Garcia Campos]

Committed r192052: <http://trac.webkit.org/changeset/192052>

[Andres Gomez Garcia]

(In reply to comment #5)
> Committed r192052: <http://trac.webkit.org/changeset/192052>

Thanks a lot! :)