[Webkit-unassigned] [Bug 134355] Serious canvas memory leak in iOS 7.1.1.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=134355





--- Comment #3 from M. Hanselmann <web at hansmi.ch>  2014-07-20 12:47:34 PST ---
Created an attachment (id=235190)
 --> (https://bugs.webkit.org/attachment.cgi?id=235190&action=review)
Test case

A customer of mine reported an issue application using UIWebView. It would become slow and eventually crash after quite some time. I have since investigated the issue and have to confirm the original report. Tests were done using iOS 7.1.2.

If the allocation traces by Instruments.app are to be believed, the leaks is in the vicinity of WebCore/platform/graphics/cg/ImageSourceCG.cpp, but I'm not familiar enough with WebKit/WebCore to be certain. It may also be an issue in Apple prorietary code.

The attached test case can be used to reproduce the issue reliably. The test image was a PNG file with 768×576px. Another test used a file with 981×820px.

I haven't succeeded in getting allocation traces using Mobile Safari, but in a custom application the memory consumption increased at a steady 1.2-1.4 MB per 1'000 frames.

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.