Bug 129542 – [GTK] [Stable] Fix wide pointer issues on ia64

• Status: NEW
• Component: WebKitGTK

[Pacho Ramos]

Created attachment 225546 [details]
webkit-gtk-2.2.5-ia64-malloc.patch

This patch is being applied for a long time on Debian and we also needed it on Gentoo for being able to *run* webkit-gtk stuff there

Thanks for accepting it

[Peng Xinchao]

(In reply to comment #0)
> Created an attachment (id=225546) [details]
> webkit-gtk-2.2.5-ia64-malloc.patch
> This patch is being applied for a long time on Debian and we also needed it on Gentoo for being able to *run* webkit-gtk stuff there
> Thanks for accepting it

Dear Ramos:
   Could you explain the thread-unsafe code ? Which code of "fastmalloc" need threadsafty? 
   I want to know more details about thread-unsafe code 。
thank you

[Peng Xinchao]

(In reply to comment #1)
> (In reply to comment #0)
> > Created an attachment (id=225546) [details] [details]
> > webkit-gtk-2.2.5-ia64-malloc.patch
> > This patch is being applied for a long time on Debian and we also needed it on Gentoo for being able to *run* webkit-gtk stuff there
> > Thanks for accepting it
> Dear Ramos:
>    Could you explain the thread-unsafe code ? Which code of "fastmalloc" need threadsafty? 
>    I want to know more details about thread-unsafe code 。
> thank you

  In CPU(ARM) GTK platform ,I happen some crash about "fastmalloc"  in the pressure test. These backtrace of crash are differernt , but all happen in "fastmalloc" function .
Example :
#0  0x4f5e461c in WTF::fastMalloc(unsigned int) () 
#1  0x4f606070 in WTF::CStringBuffer::createUninitialized(unsigned int) () 
#2  0x4f6060ac in WTF::CString::init(char const*, unsigned int) () 
#3  0x4f606194 in WTF::CString::CString(char const*) () 
#4  0x4cf41b74 in WebKit::SefClient::execute(WTF::Vector<WTF::CString, 0u, WTF::CrashOnOverflow> const&) () 
#5  0x4cf6c8b4 in WebKit::Pepper::PepperSefClientHost::onExecute(WebKit::Pepper::Host::HostMessageContext*, WTF::Vector<WTF::CString, 0u, WTF::CrashOnOverflow> const&) ()
#6  0x4cf6cd7c in WebKit::Pepper::PepperSefClientHost::onResourceMessageReceived(CoreIPC::MessageDecoder&, WebKit::Pepper::Host::HostMessageContext*) ()
#7  0x4cf6a7b0 in WebKit::Pepper::Host::ResourceMessageHandler::runMessageHandlerAndReply(CoreIPC::MessageDecoder&, WebKit::Pepper::Host::HostMessageContext*) ()
#8  0x4cf69858 in WebKit::Pepper::Host::ResourceHost::handleMessage(CoreIPC::MessageDecoder&, WebKit::Pepper::Host::HostMessageContext*) ()
#9  0x4cf686a4 in WebKit::Pepper::Host::PpapiHost::handleResourceCall(WebKit::Pepper::Proxy::ResourceMessageCallParams const&, WebKit::Pepper::Proxy::NestedMessage const&, WebKit::Pepper::Host::HostMessageContext*) ()
#10 0x4cf687dc in WebKit::Pepper::Host::PpapiHost::didReceiveResourceCallMessage(WebKit::Pepper::Proxy::ResourceMessageCallParams const&, WebKit::Pepper::Proxy::NestedMessage const&) ()
#11 0x4cf69598 in void CoreIPC::handleMessage<Messages::PpapiHost::ResourceCall, WebKit::Pepper::Host::PpapiHost, void (WebKit::Pepper::Host::PpapiHost::*)(WebKit::Pepper::Proxy::ResourceMessageCallParams const&, WebKit::Pepper::Proxy::NestedMessage const&)>(CoreIPC::MessageDecoder&, WebKit::Pepper::Host::PpapiHost*, void (WebKit::Pepper::Host::PpapiHost::*)(WebKit::Pepper::Proxy::ResourceMessageCallParams const&, WebKit::Pepper::Proxy::NestedMessage const&)) ()
#12 0x4cf68a68 in WebKit::Pepper::Host::PpapiHost::didReceiveMessage(CoreIPC::MessageDecoder&) ()
#13 0x4cf7a08c in WebKit::Pepper::UiPpapiHostImpl::HostMessageFilter::didReceiveMessage(CoreIPC::MessageDecoder&) () 
#14 0x4ceb6328 in WebKit::Dispatcher::didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageDecoder&) () 
#15 0x4e6bf2c4 in CoreIPC::Connection::dispatchMessage(CoreIPC::MessageDecoder&) () 
#16 0x4e6bfd0c in CoreIPC::Connection::dispatchMessage(WTF::PassOwnPtr<CoreIPC::MessageDecoder>) () 
#17 0x4e6bfe90 in CoreIPC::Connection::dispatchOneMessage() () 
#18 0x4e6c3568 in WTF::BoundFunctionImpl<WTF::FunctionWrapper<void (CoreIPC::Connection::*)()>, void (CoreIPC::Connection*), void ()>::operator()() ()
#19 0x4e58bdb0 in WebCore::RunLoop::performWork() () 
#20 0x4e597e84 in WebCore::RunLoop::queueWork(WebCore::RunLoop*) ()