1330730 - Intermittent test_about_pages.py TestAboutPages.test_back_forward | application crashed [@ mozilla::a11y::ProxyTextChangeEvent(mozilla::a11y::ProxyAccessible *,nsString const &,int,unsigned int,bool,bool)]

Status: RESOLVED FIXED

(Core :: Disability Access APIs, defect)

Description

[Treeherder Bug Filer]

Filed by: rvandermeulen [at] mozilla.com

https://treeherder.mozilla.org/logviewer.html#?job_id=68394619&repo=mozilla-inbound

https://archive.mozilla.org/pub/firefox/tinderbox-builds/mozilla-inbound-win32-debug/1484223436/mozilla-inbound_win7_vm-debug_test-marionette-e10s-bm139-tests1-windows-build1075.txt.gz

Comment 1

[Carsten Book [:Tomcat]]

Trevor, David, do you know what could have caused this ?

Comment 2

[Phil Ringnalda (:philor)]

What caused it was inches away from where it was filed. https://treeherder.mozilla.org/#/jobs?repo=mozilla-inbound&fromchange=311a9929ce5baae9f383eacc8109b60f6f472987&group_state=expanded&filter-searchStr=61261767bf8478cbb7289b983152ce49b6884385&tochange=8cdcf83fd1659c563ad6569e5bd63ac99a73ba65

Comment 3

[Trevor Saunders (:tbsaunde)]

Attachment: ignore events delivered to a destroyed DocAccessibleParent

After bug 1329814 a DocAccessibleParent can be shutdown by the parent process
before a content process has started shutting down the document that
DocAccessibleParent represents.  That means the content processcan send an
event from a live document to a DocAccessibleParent that has already been
destroyed.

Comment 4

[Trevor Saunders (:tbsaunde)]

Attachment: make sure mAccessibles and mChildDocs are cleared by DocAccessibleparent::Destroy()

This shouldn't be necessary because shutting down all the proxies and child
  documents should already do it, but we might as well be sure.

Comment 5

[Intermittent Failures Robot]

66 failures in 118 pushes (0.559 failures/push) were associated with this bug yesterday.  

Repository breakdown:
* autoland: 38
* mozilla-inbound: 26
* mozilla-central: 2

Platform breakdown:
* windows8-64: 57
* windows7-32-vm: 9

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1330730&startday=2017-01-13&endday=2017-01-13&tree=all

Comment 6

[Intermittent Failures Robot]

85 failures in 722 pushes (0.118 failures/push) were associated with this bug in the last 7 days. 

This is the #18 most frequent failure this week. 

** This failure happened more than 50 times this week! Resolving this bug is a high priority. **

Repository breakdown:
* autoland: 44
* mozilla-inbound: 37
* mozilla-central: 4

Platform breakdown:
* windows8-64: 67
* windows7-32-vm: 18

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1330730&startday=2017-01-09&endday=2017-01-15&tree=all

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/362ba8c68a29
ignore events delivered to a destroyed DocAccessibleParent r=smaug
https://hg.mozilla.org/integration/mozilla-inbound/rev/2b34eb5807f3
make sure mAccessibles and mChildDocs are cleared by DocAccessibleparent::Destroy() r=davidb

Comment 8

[Phil Ringnalda (:philor)]

https://hg.mozilla.org/mozilla-central/rev/362ba8c68a29
https://hg.mozilla.org/mozilla-central/rev/2b34eb5807f3

Comment 9

[Intermittent Failures Robot]

19 failures in 690 pushes (0.028 failures/push) were associated with this bug in the last 7 days.  

Repository breakdown:
* mozilla-inbound: 5
* mozilla-central: 5
* autoland: 5
* try: 3
* graphics: 1

Platform breakdown:
* windows7-32-vm: 12
* windows8-64: 6
* osx-10-10: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1330730&startday=2017-01-16&endday=2017-01-22&tree=all