Lots of crashes for Firefox 38 localized builds because of about:newtab

RESOLVED WONTFIX

Status

Mozilla QA
Mozmill Tests
P1
critical
RESOLVED WONTFIX
3 years ago
3 years ago

People

(Reporter: whimboo, Unassigned)

Tracking

({crash})

unspecified
crash

Firefox Tracking Flags

(firefox38 fixed, firefox38.0.5 fixed)

Details

(Whiteboard: [mozmill-test-failure])

Attachments

(1 attachment)

(Reporter)

Description

3 years ago
For the Firefox 38 final builds and since b7 we see a lot of crashes of the type as handled in bug 1161717. Interestingly this is only happening for localized builds of Firefox. Firefox 39 doesn't seem to be affected.

It's not that clear yet, which test exactly is causing this. But a first check showed me that testMenuQuit.js could be the reason. I will temporarily skip it.
(Reporter)

Comment 1

3 years ago
I landed a skip patch only release so far.
status-firefox38: --- → disabled
status-firefox38.0.5: --- → disabled
(Reporter)

Comment 2

3 years ago
The skip patch does not work. It looks like that there are too many variations for this crash to happen.
status-firefox38: disabled → affected
status-firefox38.0.5: disabled → affected
(Reporter)

Comment 3

3 years ago
Looks like this is related to the background thumbnailing process as triggered by about:newtab. Flipping the pref "browser.newtab.url" to about:blank fixes it for us. I will temporarily change that on the release and esr38 branch.
Severity: normal → critical
Keywords: crash
Priority: -- → P1
Summary: Lots of crashes for Firefox 38 localized builds → Lots of crashes for Firefox 38 localized builds because of about:newtab
(Reporter)

Comment 4

3 years ago
Created attachment 8604039 [details] [diff] [review]
temporary fix with about:blank
Attachment #8604039 - Flags: checkin+
(Reporter)

Comment 5

3 years ago
https://hg.mozilla.org/qa/mozmill-tests/rev/a1e7a00b8de6 (release)
https://hg.mozilla.org/qa/mozmill-tests/rev/d148ea4e3b55 (esr38)
status-firefox38: affected → fixed
status-firefox38.0.5: affected → fixed
(Reporter)

Updated

3 years ago
Assignee: nobody → hskupin
Status: NEW → ASSIGNED
(Reporter)

Comment 6

3 years ago
I don't have the time to check that at any time soon. It's more likely that we also mark it as incomplete or wontfix. Reason is also that most of the Mozmill tests have already been turned off.
Assignee: hskupin → nobody
Status: ASSIGNED → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → WONTFIX
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