[Webkit-unassigned] [Bug 78814] Memory leaks in SVG filters

Fri Feb 17 01:05:37 PST 2012

https://bugs.webkit.org/show_bug.cgi?id=78814

--- Comment #2 from Nikolas Zimmermann <zimmermann at kde.org>  2012-02-17 01:05:37 PST ---
Hrm, this is a bit awkward. I've changed your original testcase, to really only create a SVGFilterElement, not appending children, not using DOM/SVG DOM functionality, nothing.

When breaking on SVGFilterElement constructor/destructor, it's obvious, that there's no memory leak.
The SVGFilterElements are created, and then at some point they get garbage collected.

Unfortunately I can't use Instruments, to trace memory-leaks/allocations, as attaching it makes the WebProcess crash (seems a general problem with Instruments, need to investigate...) valgrind also seems to crash on Lion, attaching to eg. DumpRenderTree (hmpf :().

Anyhow, my theory is that we're observing memory fragmentation here.
Also new-run-webkit-tests --leaks doesn't detect any leaks, when running your testcase for 20s, which is also a good indicator, that we're not loosing memory.

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