Here's a link of a push : https://treeherder.mozilla.org/#/jobs?repo=try&revision=0b5e1d3db842&filter-searchStr=win%20xp&filter-resultStatus=testfailed&filter-resultStatus=busted&filter-resultStatus=exception&filter-classifiedState=unclassified These, failures were obtained while bisecting another directory, dom/media/test. 13:05:05 INFO - 44011 INFO Slowest: 4126ms - /tests/dom/media/webaudio/test/test_scriptProcessorNodeNotConnected.html 13:05:05 INFO - 44012 INFO SimpleTest FINISHED 13:05:05 INFO - 44013 INFO TEST-INFO | Ran 1 Loops 13:05:05 INFO - 44014 INFO SimpleTest FINISHED 13:05:05 WARNING - TEST-UNEXPECTED-FAIL | dom/media/webaudio/test/test_waveShaper.html | application terminated with exit code 1 13:05:05 INFO - runtests.py | Application ran for: 0:01:25.134000 13:05:05 INFO - zombiecheck | Reading PID log: c:\docume~1\cltbld~1.t-x\locals~1\temp\tmpwottpzpidlog 13:05:18 INFO - mozcrash Saved minidump as C:\slave\test\build\blobber_upload_dir\79a42be7-06bf-469c-8613-7bc784e9a844.dmp 13:05:18 INFO - mozcrash Saved app info as C:\slave\test\build\blobber_upload_dir\79a42be7-06bf-469c-8613-7bc784e9a844.extra 13:05:18 WARNING - PROCESS-CRASH | dom/media/webaudio/test/test_waveShaper.html | application crashed [@ mozilla::AssertNotAlreadyCached]