[Webkit-unassigned] [Bug 195334] New: REGRESSION: (r242403-r242405) Seven tests crashing on iOS

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=195334

            Bug ID: 195334
           Summary: REGRESSION: (r242403-r242405) Seven tests crashing on
                    iOS
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tsavell at apple.com
                CC: lforschler at apple.com

Created attachment 363659

  --> https://bugs.webkit.org/attachment.cgi?id=363659&action=review

Command List

The following layout tests are Crashing on iOS

editing/selection/thai-word-at-document-end.html
fast/events/clipboard-event-constructor.html
fast/events/focusingUnloadedFrame.html
fast/shadow-dom/click-text-inside-linked-slot.html
http/tests/cache/cache-control-immutable-http.html
quicklook/numbers-09.html
fast/events/beforeunload-alert.html

Probable cause:

These seven tests began crashing somewhere between 242401-242405. Each of these tests by themselves does not usually crash but crashes consistently when run alongside a test blamed in their crash logs. I am attaching a file with each of the commands for reproducing each tests crash. I am able to reproduce these currently on 242405 and all tests pass on 242401. 

Results:
https://build.webkit.org/results/Apple%20iOS%2012%20Simulator%20Release%20WK2%20(Tests)/r242464%20(2967)/results.html

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