[Webkit-unassigned] [Bug 241353] New: REGRESSION (r294381): WPEWebProcess leak after closing browser

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=241353

            Bug ID: 241353
           Summary: REGRESSION (r294381): WPEWebProcess leak after closing
                    browser
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: yurys at chromium.org
                CC: kkinnunen at apple.com

Since r294381 we (Playwright) often (every second run or so) see WPEWebProcesses that stay alive after the browser exits. The tests create a few WebsiteDataStore/WebProcessPool instances and then one/two pages in them. When exiting the UIProcess we now routinely see WebsiteDataStore and WebProcessPool with one WebProcess in it whose sessionID is the same as that of the WebsiteDataStore. WebsiteDataStore::processes() is empty. The repro is quite complicated, so I'm going to continue debugging.

Sihui Liu, perhaps you know off the top of your head what may have changed?

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