[Webkit-unassigned] [Bug 78794] New: Memory usage grows infinitely when changing img.src

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=78794

           Summary: Memory usage grows infinitely when changing img.src
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Blocker
          Priority: P1
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: istvan.bender at logmein.com


Created an attachment (id=127345)
 --> (https://bugs.webkit.org/attachment.cgi?id=127345&action=review)
Test page to reproduce bug

I create a page, that refreshes images frequently. I experience that memory usage grows infinitely.

I tested on Windows 7, Chrome version: 18.0.1025.11 and Mac OS 10.7.3 Lion Chrome version: 17.0.963.56. It leaks on both platform.
I also tested on Firefox 11.0 on both platform and the memory usage was stable.

How to reproduce?

1. Open attached image-test.html
2. Press Start
3. Check memory usage of page

I would expect the memory usage won’t grow (memory consumption relatively constant) in the long run.
I tested BlobBuilder API separately, it doesn’t leak alone. So it seems to me that changing img.src frequently causes the memory leak.

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