[Webkit-unassigned] [Bug 64092] New: REGRESSION(90419) NRWT's httpd locking is broken for --child-processes=1

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=64092

           Summary: REGRESSION(90419) NRWT's httpd locking is broken for
                    --child-processes=1
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P1
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: abecsi at webkit.org
                CC: eric at webkit.org, abarth at webkit.org, ossy at webkit.org,
                    ojan at chromium.org, dpranke at chromium.org,
                    Kosztyo.Kristof at stud.u-szeged.hu
        Depends on: 34984
            Blocks: 63116


ORWT's httpd locking and scheduling mechanism was implemented to be able to run multiple run-webkit-tests sessions besides each other without interfering, so the the tests needing httpd should mutually exclude each other.

Since http://trac.webkit.org/changeset/90419 this mechanism is broken when using --child-processes=1 in two ways:

1) The httpd is started without using the checking mechanism implemented in http://trac.webkit.org/changeset/89414 and the script is crashing when there is no httpd present.

2) The httpd locks are acquired even if not running any http or websocket tests, so one testing session entirely blocks another.

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