[Webkit-unassigned] [Bug 227365] New: [Stress Tests EWS] run-layout-tests-in-guard-malloc-stress-mode intermittently failing with ServerError raised: Port 49001 is already in use

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=227365

            Bug ID: 227365
           Summary: [Stress Tests EWS]
                    run-layout-tests-in-guard-malloc-stress-mode
                    intermittently failing with ServerError raised: Port
                    49001 is already in use
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

[Stress Tests EWS] run-layout-tests-in-guard-malloc-stress-mode intermittently failing with ServerError raised: Port 49001 is already in use

10:00:42.191 1929 Starting Web Platform Test server ...
10:00:42.194 1929 Copying WebKit web platform server config.json
ServerError raised: Port 49001 is already in use.
Traceback (most recent call last):
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 92, in main
    run_details = run(port, options, args, stderr)
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 487, in run
    run_details = manager.run(args)
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py", line 370, in run
    needs_http=needs_http, needs_web_platform_test_server=needs_web_platform_test_server, needs_websockets=needs_websockets)
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 123, in __init__
    self.start_servers()
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 269, in start_servers
    self._port.start_web_platform_test_server()
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/port/base.py", line 935, in start_web_platform_test_server
    Port._web_platform_test_server.start()
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/servers/http_server_base.py", line 96, in start
    self._check_that_all_ports_are_available()
  File "/Volumes/Data/worker/macOS-Release-WK2-Stress-Tests-EWS/build/Tools/Scripts/webkitpy/layout_tests/servers/http_server_base.py", line 241, in _check_that_all_ports_are_available
    raise ServerError('Port %d is already in use.' % port)
ServerError: Port 49001 is already in use.

some recent examples:
https://ews-build.webkit.org/#/builders/62/builds/5754
https://ews-build.webkit.org/#/builders/62/builds/5708
https://ews-build.webkit.org/#/builders/62/builds/5736

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