[Webkit-unassigned] [Bug 198301] New: IsoHeaps don't notice uncommitted VA becoming the first eligible.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=198301

            Bug ID: 198301
           Summary: IsoHeaps don't notice uncommitted VA becoming the
                    first eligible.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: keith_miller at apple.com

m_firstEligible doesn't get set backwards if a page becomes decommitted. So it's possible to enter a pathological case where decommitted memory never gets reused.

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