Bug 161249 - REGRESSION (r204601): Many new flaky timeouts started on 8/18/16
Summary: REGRESSION (r204601): Many new flaky timeouts started on 8/18/16
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-08-26 09:14 PDT by Ryan Haddad
Modified: 2016-08-31 15:20 PDT (History)
2 users (show)

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Description Ryan Haddad 2016-08-26 09:14:10 PDT 
There have been a large number of flaky tests that all started timing out around 8/18/16.
Comment 1 Alexey Proskuryakov 2016-08-29 10:28:37 PDT 
This is very likely caused by <http://trac.webkit.org/r204601>, even though there is no obvious relationship to the failing tests.

The failures are rare, but cross-referencing multiple tests and multiple bots, I found that there are no timeouts on these before r204601, and then there are 2-3 failures for each revision.

The timeout happens in the same worker that ran hls/hls-accessiblity-describes-video-menu.html, only 2-3 minutes later.
Comment 2 Alexey Proskuryakov 2016-08-29 14:02:12 PDT 
Ryan skipped hls/hls-accessiblity-describes-video-menu.html in r205124 to see if it helps.
Comment 3 Alexey Proskuryakov 2016-08-31 14:52:50 PDT 
Well, that did it. Still a mystery why this test causes timeouts later.