Bug 281298 – [WPE] REGRESSION(284269@main): Inspector crashes due to missing GRefPtr specialization for GResource

• Component: Tools / Tests
• Status: RESOLVED FIXED

[Adrian Perez]

Relevant backtrace:

#0  g_type_check_instance_is_fundamentally_a (type_instance=0x64b244c602e0, fundamental_type=0x50) at ../glib/gobject/gtype.c:4153
#1  0x00007aadfe8fdf20 in g_object_unref (_object=0x64b244c602e0) at ../glib/gobject/gobject.c:4327
#2  0x00007aadfb18507d in WTF::derefGPtr<_GResource> (ptr=0x64b244c602e0) at WTF/Headers/wtf/glib/GRefPtr.h:272
#3  WTF::GRefPtr<_GResource>::~GRefPtr (this=<optimized out>) at WTF/Headers/wtf/glib/GRefPtr.h:82
#4  Inspector::backendCommands()::$_0::operator()() const (this=<optimized out>) at ../Source/JavaScriptCore/inspector/remote/glib/RemoteInspectorUtils.cpp:58
#5  std::__invoke_impl<void, Inspector::backendCommands()::$_0>(std::__invoke_other, Inspector::backendCommands()::$_0&&) (__f=<optimized out>) at '/usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.2.1/../../../../include/c++/14.2.1/bits/invoke.h:61
#6  std::__invoke<Inspector::backendCommands()::$_0>(Inspector::backendCommands()::$_0&&) (__fn=<optimized out>) at /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.2.1/../../../../include/c++/14.2.1/bits/invoke.h:96
#7  std::call_once<Inspector::backendCommands()::$_0>(std::once_flag&, Inspector::backendCommands()::$_0&&)::{lambda()#1}::operator()() const (this=<optimized out>)
    at /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.2.1/../../../../include/c++/14.2.1/mutex:909

Notice how in frame #1 there's a g_object_unref() call, and an internal type check
fails. Opening a core dump in a debugger shows that the pointer in question is that
of the GResource instance for the inspector resource files.

[Adrian Perez]

Pull request: https://github.com/WebKit/WebKit/pull/35037

[EWS]

Committed 285035@main (b076eff3f70e): <https://commits.webkit.org/285035@main>

Reviewed commits have been landed. Closing PR #35037 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/137770746>