RESOLVED FIXED245051
[WK2] Flaky ASSERTION FAILED: m_gamepads.isEmpty() on gamepad/gamepad-polling-access.html 
https://bugs.webkit.org/show_bug.cgi?id=245051
Summary [WK2] Flaky ASSERTION FAILED: m_gamepads.isEmpty() on gamepad/gamepad-polling...
Ryosuke Niwa
Reported 2022-09-11 12:55:42 PDT
gamepad/gamepad-polling-access.html occasionally fails the following assertions: hread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.JavaScriptCore 0x00000001410dad24 WTFCrash + 20 1 com.apple.WebKit 0x00000001026bf4d0 WTFCrashWithInfo(int, char const*, char const*, int) + 32 2 com.apple.WebKit 0x0000000104930a68 WebKit::WebGamepadProvider::setInitialGamepads(WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&) + 112 3 com.apple.WebKit 0x00000001045ce558 WebKit::WebProcess::setInitialGamepads(WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&) + 32 4 com.apple.WebKit 0x000000010545a50c void IPC::callMemberFunctionImpl<WebKit::WebProcess, void (WebKit::WebProcess::*)(WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&), std::__1::tuple<WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> >, 0ul>(WebKit::WebProcess*, void (WebKit::WebProcess::*)(WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&), std::__1::tuple<WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> >&&, std::__1::integer_sequence<unsigned long, 0ul>) + 148 5 com.apple.WebKit 0x0000000105458030 void IPC::callMemberFunction<WebKit::WebProcess, void (WebKit::WebProcess::*)(WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&), std::__1::tuple<WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> >, std::__1::integer_sequence<unsigned long, 0ul> >(std::__1::tuple<WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> >&&, WebKit::WebProcess*, void (WebKit::WebProcess::*)(WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&)) + 124 6 com.apple.WebKit 0x0000000105431c04 void IPC::handleMessage<Messages::WebProcess::SetInitialGamepads, WebKit::WebProcess, void (WebKit::WebProcess::*)(WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&)>(IPC::Connection&, IPC::Decoder&, WebKit::WebProcess*, void (WebKit::WebProcess::*)(WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&)) + 224 7 com.apple.WebKit 0x000000010542e2a8 WebKit::WebProcess::didReceiveWebProcessMessage(IPC::Connection&, IPC::Decoder&) + 4352 8 com.apple.WebKit 0x00000001045cd2c4 WebKit::WebProcess::didReceiveMessage(IPC::Connection&, IPC::Decoder&) + 116 9 com.apple.WebKit 0x00000001056cd9f8 IPC::Connection::dispatchMessage(IPC::Decoder&) + 612 10 com.apple.WebKit 0x00000001056cdf4c IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) + 632 11 com.apple.WebKit 0x00000001056ce5a4 IPC::Connection::dispatchOneIncomingMessage() + 216 12 com.apple.WebKit 0x00000001056ee09c IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_16::operator()() + 72 13 com.apple.WebKit 0x00000001056edf94 WTF::Detail::CallableWrapper<IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_16, void>::call() + 28 14 com.apple.JavaScriptCore 0x0000000141106358 WTF::Function<void ()>::operator()() const + 124
Attachments
Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2022-09-11 14:30:07 PDT
History: https://results.webkit.org/?suite=layout-tests&test=gamepad%2Fgamepad-polling-access.html This is a regression, the first crash was on 2022-07-11.
Radar WebKit Bug Importer
Comment 2 2022-09-11 14:30:22 PDT
<rdar://problem/99802167>
Alexey Proskuryakov
Comment 3 2022-09-11 14:32:47 PDT
The test was added on 2022-07-10, 252331@main, so it's flakily crashing since introduction.
Simon Fraser (smfr)
Comment 4 2022-11-29 17:03:05 PST
This is slowing down commit-queue.
Marcos Caceres
Comment 5 2022-12-02 00:45:23 PST
Pull request: https://github.com/WebKit/WebKit/pull/7066
EWS
Comment 6 2022-12-03 19:42:30 PST
Committed 257345@main (a53135c21ca4): <https://commits.webkit.org/257345@main> Reviewed commits have been landed. Closing PR #7066 and removing active labels.
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