[Webkit-unassigned] [Bug 79614] New: [JSC] Memory allocation failed by fastmalloc even if heap grows successfully

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=79614

           Summary: [JSC] Memory allocation failed by fastmalloc even if
                    heap grows successfully
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: hojong.han at samsung.com


Heap tries to grow for memory allocation if there were not sufficient memory.

At first the size, more than 256 pages, is requested to the system in order to grow the heap,
but the size, less than 256 pages which can contain the demanded, is requested if it fails.

Spans more than 256 pages are managed in the large list,
and spans less than 256 pages are managed in the normal list,
so that it's wrong to get the span only from the large list after the heap grows.

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