[Webkit-unassigned] [Bug 34430] New: Possibly not keeping large variable in memory

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Feb 1 08:21:56 PST 2010


           Summary: Possibly not keeping large variable in memory
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.6
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: svetloslav at hotmail.com

There is a regression in r54122. The last build I used last week was  r53845
and it was working ok. I don't know if the regression is in any of the builds
in between.
Basically it presents with the official Fedex page (but you need to have an
account with them in order to be able to create a shipping label). Although
Fedex uses for many things Flash, it seems for the form in question they use
pure javascript. The form loads, and when done they seem to keep in a variable
the address book and the shipping profiles, so those are suggested when typing
in the fields of the form. Today after updating to r54122 the page loads, but
it never finishes, it seems completely unresponsive, with the clock showing, it
can not finish loading. Even clicking on the logout link won't work, also
nothing is suggested in the fields when trying to type, it seems something is
breaking javascript procedures being unable to put all variables in memory I
think. I cleaned caches and such but no result. Reverted to the older known
working build r53845 and all is back to normal. Also Firefox latest beta works
without any problems. So it is definitely something broken in the build(s)
after r53845

Find attached the source code of the Fedex page. I only deleted most of the
address book and the profiles for privacy and left only 1st entry of those to
be easy to understand the structure they use.

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