Firefox/Channels/Meetings/2020-09-08

Channel Meeting Details

• Tuesdays at 10am and Thursdays at 8am Pacific Time
• Riot #release-drivers for backchannel
• Past meeting notes: https://wiki.mozilla.org/Firefox/Channels/Meetings

Video/Teleconference Details

• Zoom Meeting ID: 536 097 768
• https://mozilla.zoom.us/j/536097768
• +17207072699,,536097768# US
• Find your local number: https://zoom.us/u/agItTmqIu

Attendees

TaniaM, jcristau, RyanVM, philipp, Aryx, kbrosnan, JR

Schedule Update

• Last week of Beta 81 before RC week, early Beta ended with b7

• Fenix 80.1.2 shipped @ 99% last week, bumped to 100% today
• Fenix 81.1.0-beta.2 live @ 100%, aiming to get at least one more Beta shipped this cycle

Desktop Stability

Nightly

mc2 crash rate: 1.73, crash incidence: 2.07%, mc1 summary score: 5.44 last week mc2 crash rate: 1.50, crash incidence: 2.71%, mc1 summary score: 6.04

• Crash in [@ memcpy | nsJARInputStream::Read] https://bugzilla.mozilla.org/show_bug.cgi?id=1551562
  • 3.92% of crashes with Nightlies from Sunday or newer
  • volume down since https://bugzilla.mozilla.org/show_bug.cgi?id=1656261 got backed out for uniknown reason
• Crash in [@ mozilla::dom::ScriptLoader::EvaluateScript]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1663440
  • 1.36% of crashes
  • should get fixed by removal of assertion
• Crash in [@ mozilla::RangeBoundaryBase<T>::GetNextSiblingOfChildAtOffset]
  • 0.60% of crashes
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1663601
  • recent regression, fix work in progress
• Crash in [@ gfxPlatform::Init | nsWindow::IsMainWindowTransparent ]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1663576
  • 1.04% of crashes, but only affected Linux
  • fixed now

Beta

mc2 crash rate: 1.73, crash incidence: 1.66%, mc1 summary score: 5.60 last week mc2 crash rate: 1.93, crash incidence: 1.95%, mc1 summary score: 6.48

• symbols were lacking for 81.0b6, so no proper crash signatures on socorro yet
  • work ongoing on reprocessing

[81.0b7]

• OOM crashes on google web properties: https://bugzilla.mozilla.org/show_bug.cgi?id=1663718 - 3% of browser crashes
• Crash in [@ memcpy | nsJARInputStream::Read]: https://bugzilla.mozilla.org/show_bug.cgi?id=1551562 - 2.3% of browser crashes
• Crash in [@ mozalloc_abort | moz_xmalloc | IPC::Message::Message]: https://bugzilla.mozilla.org/show_bug.cgi?id=1660063 - 0.9% of content crashes
• Crash in [@ mozilla::dom::CloneOrUndefined]: https://bugzilla.mozilla.org/show_bug.cgi?id=1660539 - 0.5% of content crashes
• Crash in [@ mozalloc_abort | moz_xmalloc | mozilla::TransportLayerDtls::GetDecryptedPackets]: https://bugzilla.mozilla.org/show_bug.cgi?id=1659823 - 0.5% of content crashes

Release

mc2 crash rate: 1.39, crash incidence: 0.82%, mc1 summary score: 2.08 last week mc2 crash rate: 1.43, crash incidence: 0.86%, mc1 summary score: 2.71

• Crash in [@ nsJARChannel::Open] during shutdown: https://bugzilla.mozilla.org/show_bug.cgi?id=1663315
  • seems to be a one-time crash during the update process

Mobile Stability

Fenix

• Beta #1 top crash https://github.com/mozilla-mobile/fenix/issues/14852
• https://github.com/mozilla-mobile/android-components/issues/8356
• Patch landed that sharded out the Display already aquired https://github.com/mozilla-mobile/android-components/issues/7960

QA

Nightly

• feature tech doc due, trello creation: tomorrow Sep 9th
• Regression Testing in Nightly 82.0a1 - Round 1 is completed (GREEN)
  • 4 new bugs were reported: https://mzl.la/32a7vvN

Aurora / Dev Edition

Beta

• Pre-Release Prelim reports were published
  • PDF Form Fill - Preliminary report sent with status Yellow due to https://github.com/mozilla/pdf.js/issues/12319
  • Modernized Print UI - Preliminary report sent with status Red due to large number of open bugs https://mzl.la/3haLqBx
  • Credit Card Autofill - Preliminary Report was sent with Yellow color, more info at: https://docs.google.com/document/d/1-jcC7a_MF-3K7cYE7-Ejby9Z1hqH4oaGf7VolKruzPM/edit
  • Support Langpacks across updates - Preliminary status report sent - Yellow because we couldn't test the feature on actual Beta 81 builds, Nightly 81 was used instead
  • Tania to reach out to Sebastian about beta builds
    • try build could help but if they are unbranded Betas then it would not really help (won't update to another version)
  • Dynamic FPI - Bugs behind the yellow preliminary status turned out to be expected behaviour, so the feature has been changed back to on-track
• Haven't received a WNP testing request for 81, deadline is tomorrow
  • ryan to ping in https://bugzilla.mozilla.org/show_bug.cgi?id=1661585
  • Tania to check with Justin Crawford

Mobile

Action items

Feature Status Review

SUMO Report

Roundtable & Special Topics

• QA is in the process of creating an updated test plan for Nightly Regression Testing
  • Merging two test rounds into one
  • Rotation based OS coverage (macOS, Linux and Win7, ARM64)
  • Removing tests that never failed/ tests that are covered in other test cases

Post-Mortem (Tues 2wks from GA Release)