[Webkit-unassigned] [Bug 217730] New: REGRESSION(r268423) SHOULD NEVER BE REACHED: GPUConnectionToWebProcess::didReceiveMessage(IPC::Connection &, IPC::Decoder &)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=217730

            Bug ID: 217730
           Summary: REGRESSION(r268423) SHOULD NEVER BE REACHED:
                    GPUConnectionToWebProcess::didReceiveMessage(IPC::Conn
                    ection &, IPC::Decoder &)
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: hector_i_lopez at apple.com

fast/mediastream/captureInGPUProcess.html

Test is a constant crash according to history on macOS and iOS Debug. First occurrence of a crash is at r268423 for iOS and has also been a flaky timeout. First occurrence of a crash on macOS is at r268431 but may be due to a lack of results from r268421.

History:

https://results.webkit.org/?suite=layout-tests&test=fast%2Fmediastream%2FcaptureInGPUProcess.html&platform=ios&platform=mac&style=debug

stderr log:

SHOULD NEVER BE REACHED
/Volumes/Data/slave/ios-simulator-14-debug/build/WebKitBuild/Debug-iphonesimulator/DerivedSources/WebKit2/GPUConnectionToWebProcessMessageReceiver.cpp(96) : virtual void WebKit::GPUConnectionToWebProcess::didReceiveMessage(IPC::Connection &, IPC::Decoder &)
1   0x11f1bbe89 WTFCrash
2   0x10d1cc10b WTFCrashWithInfo(int, char const*, char const*, int)
3   0x10d5e9725 WebKit::GPUConnectionToWebProcess::didReceiveMessage(IPC::Connection&, IPC::Decoder&)
4   0x10d24127f IPC::Connection::dispatchMessage(IPC::Decoder&)
5   0x10d241bd0 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)
6   0x10d242260 IPC::Connection::dispatchOneIncomingMessage()
7   0x10d260cf8 IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_7::operator()()
8   0x10d260c0e WTF::Detail::CallableWrapper<IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_7, void>::call()
9   0x11f1e75a2 WTF::Function<void ()>::operator()() const
10  0x11f264f05 WTF::RunLoop::performWork()
11  0x11f269641 WTF::RunLoop::performWork(void*)
12  0x108ca3845 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__
13  0x108ca373d __CFRunLoopDoSource0
14  0x108ca2c1f __CFRunLoopDoSources0
15  0x108c9d3f7 __CFRunLoopRun
16  0x108c9cb9e CFRunLoopRunSpecific
17  0x10868ce61 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
18  0x10868d075 -[NSRunLoop(NSRunLoop) run]
19  0x10a5d0506 _xpc_objc_main
20  0x10a5d24aa xpc_main
21  0x10da66ad5 WebKit::XPCServiceMain(int, char const**)
22  0x10ef4fbdb WKXPCServiceMain
23  0x1084bdd62 main
24  0x10a264415 start
LEAK: 2 WebPageProxy

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