1698686 - Fix and re-enable dom/filesystem/compat/tests/test_basic.html for Fission TSan

Status: RESOLVED WORKSFORME

(Core :: DOM: File, defect, P2)

Description

[Chris Peterson [:cpeterson]]

ahal tried to enable mochitest-plain for Fission on linux1804-64-tsan/opt in bug 1694833. Unfortunately, there are some new TSan test failures with Fission. mochitest-plain already runs on linux1804-64-tsan/opt for e10s (non-Fission), so Fission is presumably causing these new failures.

Try run:

https://treeherder.mozilla.org/jobs?repo=try&revision=c50dd851c95cc3b8d0cd1e6cd4889b6a6a4d842a&searchStr=tsan&group_state=expanded

13 possible regressions (and 17 known issues):

https://treeherder.mozilla.org/push-health/push?repo=try&revision=c50dd851c95cc3b8d0cd1e6cd4889b6a6a4d842a

dom/filesystem/compat/tests/test_basic.html

[task 2021-03-12T15:32:05.929Z] 15:32:05     INFO - GECKO(4475) | JavaScript error: , line 0: NotFoundError: No such JSWindowActor 'MarionetteEvents'
[task 2021-03-12T15:32:08.378Z] 15:32:08     INFO - SimpleTest START
[task 2021-03-12T15:32:08.419Z] 15:32:08     INFO - TEST-START | dom/tests/mochitest/dom-level2-html/test_HTMLAnchorElement01.html
[task 2021-03-12T15:38:18.435Z] 15:38:18     INFO - Buffered messages finished
[task 2021-03-12T15:38:18.435Z] 15:38:18    ERROR - TEST-UNEXPECTED-TIMEOUT | dom/tests/mochitest/dom-level2-html/test_HTMLAnchorElement01.html | application timed out after 370 seconds with no output
[task 2021-03-12T15:38:18.436Z] 15:38:18    ERROR - Force-terminating active process(es).

Comment 1

[Chris Peterson [:cpeterson]]

Resolving as WORKSFORME because I re-triggered the Fission TSan tests 5 times on try and didn't see any failures:

https://treeherder.mozilla.org/jobs?repo=try&revision=e151fb36d68f03b17cce5fc56a70c7648f338bb6