87137 2012-05-22 09:09:41 -0700 Layout Test fast/block/margin-collapse/103.html is failing (layout assertion) 2012-12-06 13:42:02 -0800 1 1 1 Unclassified WebKit Tools / Tests 528+ (Nightly build) Unspecified Unspecified RESOLVED WORKSFORME P2 Normal --- 1 jsbell eae eae leviw oldest_to_newest 630427 0 jsbell 2012-05-22 09:09:41 -0700 The following layout test is failing on [insert platform] fast/block/margin-collapse/103.html Probable cause: WebKit blame range: http://trac.webkit.org/log/?verbose=on&rev=117821&stop_rev=117815 Abbreviated stack is: STDERR: ASSERTION FAILED: newLogicalTop >= logicalTop STDERR: Backtrace: STDERR: WebKit::WebURLRequest::hasUserGesture [0x0247F0EE+11353182] ... STDERR: WebKit::WebURLRequest::hasUserGesture [0x02EBCBB6+22091558] STDERR: webkit_glue::WebURLResponseExtraDataImpl::~WebURLResponseExtraDataImpl [0x099788AE+949584] STDERR: (No symbol) [0x005071B9] ... STDERR: (No symbol) [0x0050DFFC] STDERR: base::SharedMemory::CreateAnonymous [0x00B67B7F+364615] ... STDERR: base::SharedMemory::CreateAnonymous [0x00B6EC70+393528] STDERR: (No symbol) [0x004ABB8D] ... STDERR: (No symbol) [0x00500A0F] STDERR: RegisterWaitForInputIdle [0x7C817077+73] Test results: http://build.chromium.org/f/chromium/layout_test_results/Webkit_Win__dbg__1_/138145/layout-test-results.zip 630428 1 jsbell 2012-05-22 09:10:18 -0700 Subpixel layout is the most likely culprit given the range and assert. Assigning to eae@ for investigation. 630431 2 jsbell 2012-05-22 09:10:50 -0700 Also, only failing on webkit win debug. 630576 3 jsbell 2012-05-22 11:25:11 -0700 Flakiness dashboard link: http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fblock%2Fmargin-collapse%2F103.html 631005 4 143420 eae 2012-05-22 17:55:59 -0700 Created attachment 143420 Reduced test case The crash seems to be window size specific. With the reduced test case (attached) it doesn't crash when loaded but as soon as the window is made small enough to toggle scrolling 785207 5 jsbell 2012-12-06 13:42:02 -0800 No longer showing on flakiness dashboard. Presumably fixed, re-open at will. 143420 2012-05-22 17:55:59 -0700 2012-05-22 17:55:59 -0700 Reduced test case 103.html text/html 537 eae PGh0bWw+Cgo8c3R5bGU+CgoKLnF1ZXN0aW9uIAp7CmRpc3BsYXk6IGJsb2NrOwpmbG9hdDogbGVm dDsKfQoKLmFuc3dlciAKewpkaXNwbGF5OiBibG9jazsKd2lkdGg6IDE4MHB4Owp9CgoKdGV4dGFy ZWEuYW5zd2VyIAp7CndpZHRoOiA1MDBweDsKbWFyZ2luLXRvcDogMjVweDsKbWFyZ2luLWxlZnQ6 IDBweDsKY2xlYXI6IGJvdGg7Cm1hcmdpbi1ib3R0b206IDVweDsKfQoKPC9zdHlsZT4KCjwvaGVh ZD4KCjxib2R5PgoKPGRpdiBpZD0iY29udGFpbmVyIj4KCgkJCTxoMj5Ub29scyBpbiBEZXZlbG9w bWVudCBRdWVzdGlvbnM8L2gyPgoJCQkKCQkJPHNwYW4gY2xhc3M9InF1ZXN0aW9uIj5Zb3VyIGNv bW1lbnRzIG9uIEZpZy4gMjwvc3Bhbj4JCgkJCTx0ZXh0YXJlYSBjbGFzcz0iYW5zd2VyIj48L3Rl eHRhcmVhPgoJCQkKCQkJPHNwYW4gY2xhc3M9InF1ZXN0aW9uIj5Zb3VyIGNvbW1lbnRzIG9uIEZp Zy4gMzwvc3Bhbj4JCgkJCTx0ZXh0YXJlYSBjbGFzcz0iYW5zd2VyIj48L3RleHRhcmVhPgoJCQoJ PC9kaXY+Cgo8L2JvZHk+Cgo8L2h0bWw+