Firefox/Channels/Meetings/2019-07-30

Channel Meeting Details

• Tuesdays 10am and Thursdays at 8am Pacific Time
• irc.mozilla.org #planning for backchannel

Video/Teleconference Details

• Zoom Meeting ID: 266 532 573
• https://mozilla.zoom.us/j/266532573
• +17207072699,,266532573# US
• Find your local number: https://zoom.us/u/agItTmqIu

REMEMBER

These notes are read by people who weren't able to attend the meeting. Please make sure to include links and context so they can be understood.

Attendees

• marcia, RyanVM, philipp, Ritu, Tania, Tom, Aryx, mhentges, Thomas, pascal

Schedule Update

Current releases dashboard: https://mozilla.github.io/delivery-dashboard

• 68.0.2 coming for all products (Desktop/ESR/Fennec)
  • ETA next week

• Desktop/DevEdition 69.0b9 has been bumpy, still on track to ship today
  • build1 l10n repacks broken due to bug 1569892, worked around by manually reverting l10n-changesets to an older rev
  • build2/build3 canceled due to combination of bug 1570078 and human error
  • build4 respins underway
• Fennec 68.1b4 live @ 100%

Off-train releases

Current Shield studies: https://strategy-and-insights.mozilla.com/shield-studies/index.html

Stability

Nightly

firefox nightly summary score: 6.75, Thursday 6.52

• DOM crash https://bugzilla.mozilla.org/show_bug.cgi?id=1542037 continues to be high on nightly. Investigation continues
• Spike in Core | ImageLib crash was fixed by backout - https://bugzilla.mozilla.org/show_bug.cgi?id=1569012
• Core | Graphics WR crash has a patch: https://bugzilla.mozilla.org/show_bug.cgi?id=1569131
• Topcrash https://bugzilla.mozilla.org/show_bug.cgi?id=1566540 is now resolved fixed
• Small volume crash related to Fission - https://bugzilla.mozilla.org/show_bug.cgi?id=1570038
• Nightly crash triage surfaced some small volume regressions: https://wiki.mozilla.org/NightlyCrashTriage/2019Q3#2019-07-29_-_marcia

Beta

firefox beta summary score: 2.74, Thursday 3.10

• 69.0b8 - the top 8 signatures are all Javascript related and have been around

Release

firefox release summary score: 2.34, Thursday 2.48

• spiking signatures in 68.0.1 compared to 67 cycle:
  • shutdownhang | mozilla::ipc::GeckoChildProcessHost::WaitUntilConnected: https://bugzilla.mozilla.org/show_bug.cgi?id=1541344 - 4.6% of browser crashes
  • AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | EnvironmentAddonBuilder: https://bugzilla.mozilla.org/show_bug.cgi?id=1513855 - 2% of browser crashes
  • mozilla::dom::indexedDB::`anonymous namespace'::QuotaClient::ShutdownTimedOut: https://bugzilla.mozilla.org/show_bug.cgi?id=1541776 - 1.4% of browser crashes

Mobile

• Crash rate is calculated based on usage hours (the time Firefox is actively used).
• Usage hours will be significantly lower on Fennec than on desktop Firefox, so we can't compare mobile rates to desktop rates.

Nightly

fennec nightly summary score: 85.34, Thursday 20.54

• • https://bugzilla.mozilla.org/show_bug.cgi?id=1557661 is the top crash - trying to figure out why it is so high

Beta

fennec beta summary score: 57.19, Thursday 56.83

• • Nothing specific to call out for beta other than https://bugzilla.mozilla.org/show_bug.cgi?id=1461724

Release

fennec release summary score: 20.27, Thursday 85.65

• • https://bugzilla.mozilla.org/show_bug.cgi?id=1532704 is pretty high, but because there are different issues under one signature, we may not be able to do anything about it
  • SprintLiteral signature continues to be #2 overall - https://bugzilla.mozilla.org/show_bug.cgi?id=1461724
  • #4 overall top crash https://bugzilla.mozilla.org/show_bug.cgi?id=801617
  • Added a comment to #6 overall crash. Doesn't sound promising that much can be done - https://bugzilla.mozilla.org/show_bug.cgi?id=1497143
  • #13 top crash https://bugzilla.mozilla.org/show_bug.cgi?id=1560611 is fixed and awaiting uplift
  • Added a comment to #8 overall - https://bugzilla.mozilla.org/show_bug.cgi?id=1374570

Fenix/Firefox Preview

• Top overall crash https://bugzilla.mozilla.org/show_bug.cgi?id=1557449. Awaiting a rewrite in https://bugzilla.mozilla.org/show_bug.cgi?id=1530770 that might help