The following layout test is timing out on GTK Release builds, while passing just fine on Debug ones: imported/w3c/indexeddb/idbindex-multientry-big.htm The test has been timing out since it was added on r189264
Here's a test that creates a multiEntry index on 250000+ items. It fails in WebKit, so I guess it's the same issue? http://output.jsbin.com/bunoqu/ Chrome also fails, so the fix may be similar. https://bugs.chromium.org/p/chromium/issues/detail?id=681980