[Webkit-unassigned] [Bug 210849] [ GTK iOS15 wk2 ] compositing/overflow/rtl-scrollbar-layer-positioning.html is failing since added in r260445

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=210849

Simon Fraser (smfr) <simon.fraser at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |cdumez at apple.com

--- Comment #9 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
I found the samples:
https://build.webkit.org/results/Apple-iOS-15-Simulator-Release-arm64-WK2-Tests/252686@main%20(265)/

They show WTR getting stuck talking to the web process under various "reset to defaults" calls:

    +                         837 -[WebKitTestRunnerApp _runTestController]  (in WebKitTestRunnerApp) + 40  [0x1005efa44]
    +                           837 WTR::TestController::TestController(int, char const**)  (in WebKitTestRunnerApp) + 340  [0x1006012d4]
    +                             837 WTR::TestController::runTestingServerLoop()  (in WebKitTestRunnerApp) + 124  [0x1006063b0]
    +                               837 WTR::TestController::runTest(char const*)  (in WebKitTestRunnerApp) + 312  [0x100606110]
    +                                 837 WTR::TestInvocation::invoke()  (in WebKitTestRunnerApp) + 384  [0x10061e928]
    +                                   837 WTR::TestController::resetStateToConsistentValues(WTR::TestOptions const&, WTR::TestController::ResetStage)  (in WebKitTestRunnerApp) + 1296  [0x10060482c]
    +                                     837 WTR::TestController::statisticsResetToConsistentState()  (in WebKitTestRunnerApp) + 76  [0x100604fd8]
    +                                       837 WTR::TestController::platformRunUntil(bool&, WTF::Seconds)  (in WebKitTestRunnerApp) + 200  [0x1006169e0]
    +                                         837 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]  (in Foundation) + 232  [0x102f3f5bc]
    +                                           837 CFRunLoopRunSpecific  (in CoreFoundation) + 572  [0x10454a804]
    +                                             837 __CFRunLoopRun  (in CoreFoundation) + 1096  [0x10454b164]
    +                                               837 __CFRunLoopServiceMachPort  (in CoreFoundation) + 368  [0x104550d58]
    +                                                 837 mach_msg  (in libsystem_kernel.dylib) + 72  [0x104e95430]

    +                         838 -[WebKitTestRunnerApp _runTestController]  (in WebKitTestRunnerApp) + 40  [0x102597a44]
    +                           838 WTR::TestController::TestController(int, char const**)  (in WebKitTestRunnerApp) + 340  [0x1025a92d4]
    +                             838 WTR::TestController::runTestingServerLoop()  (in WebKitTestRunnerApp) + 124  [0x1025ae3b0]
    +                               838 WTR::TestController::runTest(char const*)  (in WebKitTestRunnerApp) + 312  [0x1025ae110]
    +                                 838 WTR::TestInvocation::invoke()  (in WebKitTestRunnerApp) + 384  [0x1025c6928]
    +                                   838 WTR::TestController::resetStateToConsistentValues(WTR::TestOptions const&, WTR::TestController::ResetStage)  (in WebKitTestRunnerApp) + 1296  [0x1025ac82c]
    +                                     838 WTR::TestController::statisticsResetToConsistentState()  (in WebKitTestRunnerApp) + 76  [0x1025acfd8]
    +                                       838 WTR::TestController::platformRunUntil(bool&, WTF::Seconds)  (in WebKitTestRunnerApp) + 200  [0x1025be9e0]
    +                                         838 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]  (in Foundation) + 232  [0x104fc75bc]
    +                                           838 CFRunLoopRunSpecific  (in CoreFoundation) + 572  [0x1065d2804]
    +                                             838 __CFRunLoopRun  (in CoreFoundation) + 1096  [0x1065d3164]
    +                                               838 __CFRunLoopServiceMachPort  (in CoreFoundation) + 368  [0x1065d8d58]
    +                                                 838 mach_msg  (in libsystem_kernel.dylib) + 72  [0x108fa9430]

    +                             846 WTR::TestController::runTestingServerLoop()  (in WebKitTestRunnerApp) + 124  [0x1007c63b0]
    +                               846 WTR::TestController::runTest(char const*)  (in WebKitTestRunnerApp) + 312  [0x1007c6110]
    +                                 846 WTR::TestInvocation::invoke()  (in WebKitTestRunnerApp) + 32  [0x1007de7c8]
    +                                   846 WTR::TestController::configureViewForTest(WTR::TestInvocation const&)  (in WebKitTestRunnerApp) + 28  [0x1007c5f90]
    +                                     846 WTR::TestController::ensureViewSupportsOptionsForTest(WTR::TestInvocation const&)  (in WebKitTestRunnerApp) + 280  [0x1007c42b4]
    +                                       846 WTR::TestController::resetStateToConsistentValues(WTR::TestOptions const&, WTR::TestController::ResetStage)  (in WebKitTestRunnerApp) + 1320  [0x1007c4844]
    +                                         846 WTR::TestController::clearPrivateClickMeasurement()  (in WebKitTestRunnerApp) + 76  [0x1007c50a0]
    +                                           846 WTR::TestController::platformRunUntil(bool&, WTF::Seconds)  (in WebKitTestRunnerApp) + 200  [0x1007d69e0]
    +                                             846 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]  (in Foundation) + 232  [0x10320b5bc]
    +                                               846 CFRunLoopRunSpecific  (in CoreFoundation) + 572  [0x104816804]
    +                                                 846 __CFRunLoopRun  (in CoreFoundation) + 1096  [0x104817164]
    +                                                   846 __CFRunLoopServiceMachPort  (in CoreFoundation) + 368  [0x10481cd58]
    +                                                     846 mach_msg  (in libsystem_kernel.dylib) + 72  [0x1071ed430]


I suspect if we had a WebContent sample that we'd see some kind of IPC deadlock.

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