[Webkit-unassigned] [Bug 204221] [WinCairo] WebKitWebProcess.exe process remains alive while waiting for sync reply to Messages::WebProcessProxy::ShouldTerminate

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=204221

--- Comment #3 from Fujii Hironori <Hironori.Fujii at sony.com> ---
Created attachment 456855

  --> https://bugs.webkit.org/attachment.cgi?id=456855&action=review

Patch to reproduce

I can't reproduce this on my PC.
However, adding Sleep(100) in IPC::Connection::readEventHandler can reproduce remaining web process problem by running layout tests.
But, the call stack is almost empty, not waiting for sync reply.  I'm not sure this is exactly same issue.

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