Bug 249023 – [ macOS wk2 ] gamepad/gamepad-polling-access.html : com.apple.WebKit: WebKit::WebGamepadProvider::setInitialGamepads

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Karl Rackler]

Created attachment 463962 [details]
symbolicated-log

gamepad/gamepad-polling-access.html is a flaky crash

It is a flaky crash on macOS wk2 and ews.

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=gamepad%2Fgamepad-polling-access.html
 
CRASHING TEST: gamepad/gamepad-polling-access.html

Thread 0 Crashed:
0   com.apple.JavaScriptCore      	0x000000010e9f4b58 WTFCrashWithInfoImpl(int, char const*, char const*, int, unsigned long long) + 8 (Assertions.cpp:728)
1   com.apple.WebKit              	0x0000000106113455 WebKit::WebGamepadProvider::setInitialGamepads(WTF::Vector<WebKit::GamepadData, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&) + 485 (WebGamepadProvider.cpp:65)
2   com.apple.WebKit              	0x00000001062da3f9 WebKit::WebProcess::didReceiveWebProcessMessage(IPC::Connection&, IPC::Decoder&) + 3563 (WebProcessMessageReceiver.cpp:208)
3  com.apple.WebKit              	0x00000001063261e2 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) + 226 (Connection.cpp:1241)
4  com.apple.WebKit              	0x0000000106326373 IPC::Connection::dispatchOneIncomingMessage() + 169 (Connection.cpp:1302)
5  com.apple.JavaScriptCore      	0x000000010ea39091 WTF::RunLoop::performWork() + 545 (RunLoop.cpp:147)

I was unable to repro from the bots, but able to capture the crash log from the ews bot.
https://ews-build.webkit.org/#/builders/28/builds/23845
https://ews-build.s3-us-west-2.amazonaws.com/Commit-Queue/463940-23845/gamepad/gamepad-polling-access-crash-log.txt

[Radar WebKit Bug Importer]

<rdar://problem/103182584>

[Karl Rackler]

I have marked this test as a flaky crash while this issue is investigated.

[Chris Dumez]

Likely a regression from Marcos' recent change.

[Chris Dumez]

Looks like we're hitting this assertion:
```
void WebGamepadProvider::setInitialGamepads(const Vector<GamepadData>& gamepadDatas)
{
    WP_MESSAGE_CHECK((m_gamepads.isEmpty()), m_gamepads.size());
```

[EWS]

Test gardening commit 257634@main (e630e4b76cc8): <https://commits.webkit.org/257634@main>

Reviewed commits have been landed. Closing PR #7390 and removing active labels.

[Chris Dumez]

I am having trouble reproducing.

[Chris Dumez]

Pull request: https://github.com/WebKit/WebKit/pull/7395

[EWS]

Committed 257651@main (e94e205403f5): <https://commits.webkit.org/257651@main>

Reviewed commits have been landed. Closing PR #7395 and removing active labels.