[Webkit-unassigned] [Bug 197205] New: webkitpy: Kill unresponsive worker processes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=197205

            Bug ID: 197205
           Summary: webkitpy: Kill unresponsive worker processes
           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: jbedard at apple.com
                CC: lforschler at apple.com

It's possible for us to get into a state, most common in EWS, where workers are deadlocked waiting on the message queue. In most cases, sending a termination to all workers before joining any workers is sufficient to fix the problem. In some cases, we might need to explicitly kill unresponsive workers. This isn't a great practice, but it's very important when run-webkit-tests has been interrupted, either with a SIGTERM or because the maximum number of failed tests has been hit.

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