249452 2022-12-15 23:05:26 -0800 REGRESSION(257681@main) [WebDriver] Invalid WebPageProxy references after RefPtr moved into callbacks 2022-12-16 07:43:17 -0800 1 1 1 Unclassified WebKit WebDriver WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=248912 InRadar P2 Normal --- 1 lmoura lmoura bburg cgarcia ddkilzer ggaren webkit-bug-importer oldest_to_newest 1919826 0 lmoura 2022-12-15 23:05:26 -0800 257681@main replaced plain WebPageProxy pointers with RefPtr, but IIUC, it also WTFMove'd some of these RefPtr into lambda captures while they were still used outside leading to invalid references. For example, being passed into a WebProcessProxy& parameter in the exitFullscreenWindowForPage() call inside setWindowFrameOfBrowsingContext() in [1]. When exit... executed, the page parameter received was (nil) after being moved. As this happened in some WebAutomationSession methods used during the setup of many tests, the failures in the webdriver suite increased from ~23 to ~2008. First build with failure: https://build.webkit.org/#/builders/37/builds/13372 Patch incoming. [1] https://github.com/WebKit/WebKit/blob/main/Source/WebKit/UIProcess/Automation/WebAutomationSession.cpp#L417 1919830 1 lmoura 2022-12-15 23:43:01 -0800 Pull request: https://github.com/WebKit/WebKit/pull/7737 1919928 2 ews-feeder 2022-12-16 07:42:49 -0800 Committed 257988@main (7301504e0c22): <https://commits.webkit.org/257988@main> Reviewed commits have been landed. Closing PR #7737 and removing active labels. 1919929 3 webkit-bug-importer 2022-12-16 07:43:17 -0800 <rdar://problem/103447051>