[V8] Don't crash when OOM in creating isolated world

• Component: WebCore JavaScript
• Status: RESOLVED FIXED

[Adam Barth]

Thread 0 *CRASHED* ( EXCEPTION_ACCESS_VIOLATION @ 0x00000000 )

0x01a936fd       [chrome.dll     - api.cc:476]  v8::Context::GetData()
0x015a6cae       [chrome.dll     -
v8proxy.cpp:385]        WebCore::V8Proxy::setInjectedScriptContextDebugId(v8::Handle<v8::Context>)
0x015a6a92       [chrome.dll     -
v8proxy.cpp:314]        WebCore::V8Proxy::evaluateInIsolatedWorld(int,WTF::Vector<WebCore::ScriptSourceCode,0>
const &,int)
0x018329d9       [chrome.dll     -
webframeimpl.cpp:596]   WebKit::WebFrameImpl::executeScriptInIsolatedWorld(int,WebKit::WebScriptSource
const *,unsigned int,int)
0x01376e51       [chrome.dll     -
user_script_slave.cc:188]       UserScriptSlave::InjectScripts(WebKit::WebFrame
*,UserScript::RunLocation)
0x0136d000       [chrome.dll     -
render_view.cc:2320]    RenderView::OnUserScriptIdleTriggered(WebKit::WebFrame
*)
0x0138e482       [chrome.dll     -
user_script_idle_scheduler.cc:44]       UserScriptIdleScheduler::MaybeRun()
0x015915b9       [chrome.dll     -
task.h:147]     ScopedRunnableMethodFactory<appcache::MockAppCacheStorage>::RunnableMethod<void
( appcache::MockAppCacheStorage::*)(void),Tuple0>::Run()
0x01345f5d       [chrome.dll     - message_loop.cc:320] MessageLoop::RunTask(Task *)
0x01345f97       [chrome.dll     -
message_loop.cc:328]    MessageLoop::DeferOrRunPendingTask(MessageLoop::PendingTask
const &)
0x0134614c       [chrome.dll     - message_loop.cc:435] MessageLoop::DoWork()
0x01356f46       [chrome.dll     -
message_pump_default.cc:50]     base::MessagePumpDefault::Run(base::MessagePump::Delegate
*)
0x01345e0d       [chrome.dll     - message_loop.cc:205] MessageLoop::RunInternal()
0x01345d92       [chrome.dll     - message_loop.cc:177] MessageLoop::RunHandler()
0x01345d43       [chrome.dll     - message_loop.cc:155] MessageLoop::Run()
0x0135e9ca       [chrome.dll     -
renderer_main.cc:139]   RendererMain(MainFunctionParams const &)
0x012b37fb       [chrome.dll     - chrome_dll_main.cc:565]      ChromeMain
0x01222f02       [chrome.exe     -
client_util.cc:170]     MainDllLoader::Launch(HINSTANCE__
*,sandbox::SandboxInterfaceInfo *)
0x01223548       [chrome.exe     - chrome_exe_main.cc:47]       wWinMain
0x01247949       [chrome.exe     - crt0.c:324]  __tmainCRTStartup
0x77333676       [kernel32.dll   + 0x00013676]  BaseThreadInitThunk
0x77d59d71       [ntdll.dll      + 0x00039d71]  __RtlUserThreadStart
0x77d59d44       [ntdll.dll      + 0x00039d44]  _RtlUserThreadStart

[Adam Barth]

Created attachment 43715 [details]
Patch

[anton muhin]

(In reply to comment #1)
> Created an attachment (id=43715) [details]
> Patch

I thought that we crash in this line:

v8::Handle<v8::Value> windowContextData = m_context->GetData();

shouldn't we add if (m_context.IsEmpty()) check above as well?

[Adam Barth]

Created attachment 43717 [details]
Patch

[Adam Barth]

Right you are!

[anton muhin]

Comment on attachment 43717 [details]
Patch

Thanks a lot.

[Adam Barth]

Comment on attachment 43717 [details]
Patch

Thanks Anton, but according to committers.py, you're not a reviewer (yet!).  We still need an official reviewer to sign off on this patch.

[Dimitri Glazkov (Google)]

Comment on attachment 43717 [details]
Patch

r=me.

[Adam Barth]

Committed r51312: <http://trac.webkit.org/changeset/51312>