Firefox/Channels/Meetings/2020-01-21

Channel Meeting Details

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

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

Attendees

tania, RyanVM, philipp, pascal, telin, aryx, julien, dveditz

Schedule Update

• 72.0.2 shipped yesterday at 25%
  • aiming to go 100% tomorrow if there are no blockers
• also shipped 68.4.2 ESR and fennec

• Automated betas running on schedule. 73.0b7 shipped yesterday, 73.0b8 gtb later today & shipping tomorrow

Release metrics

Report on release criteria metrics from DRIs

• Stability
• Performance
• Security
• Functionality

• Fx73 release metrics are generally trending in the right direction, but not fast enough for RC
• Overall quality is putting Fx73 at risk right now
  • Need more timely replies to NI requests and bug triage
• Overholt to ask about disabling sw-e10s
• Any decisions about Fx73 schedule changes need to be made ASAP
  • Ryan and Thomas to meet later today to discuss options

Off-train releases

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

Add-ons

Stability

new mc2 url: https://metrics.mozilla.com/public/sguha/mc2/missioncontrol_v2.html

Nightly

mc2 crash rate: 1.82, crash indicence: 1.97%, mc1 summary score: 5.61 thursday mc2 crash rate: 2.00, crash indicence: 1.75%, mc1 summary score: 6.66

• https://bugzilla.mozilla.org/1610485 top crash in Jan 21, regressor backed out and nigtlies being respun
• https://bugzilla.mozilla.org/1610158 medium crasher over the last week
• nightly crash triage roster - most of the spots now empty: https://wiki.mozilla.org/NightlyCrashTriage

Beta

mc2 crash rate: 1.82, crash indicence: 1.82%, mc1 summary score: 4.90 thursday mc2 crash rate: 1.72, crash indicence: 1.46%, mc1 summary score: 6.16

[73.0b7]

• Crash in [@ mozilla::net::PDocumentChannelParent::SendRedirectToRealChannel]: https://bugzilla.mozilla.org/show_bug.cgi?id=1606901 - 7.6% of browser crashes
  • patch on nightly, needs uplifting to determine if it's working or not
• Crash in [@ mozilla::gfx::AdjustedPattern::operator mozilla::gfx::Pattern*]: https://bugzilla.mozilla.org/show_bug.cgi?id=1604800 - 5.2% of tab crashes
  • printing related; various speculative backouts have been tried - without success so far
  • new backout patch attached for 73.0b8
• Crash in [@ mozilla::interceptor::ReadOnlyTargetBytes<T>::EnsureLimit]: https://bugzilla.mozilla.org/show_bug.cgi?id=1604008 - 1.1% of browser crashes
  • 3rd party induced crash (0patch); follow-up patch for the fix has just landed on nightly
• Crash in [@ js::ErrorObject::init]: https://bugzilla.mozilla.org/show_bug.cgi?id=1608760 - 0.6% of browser crashes
• SW-e10s related crashes:
  • AsyncShutdownTimeout | profile-change-teardown | ServiceWorkerShutdownBlocker: shutting down Service Workers: https://bugzilla.mozilla.org/show_bug.cgi?id=1588152 - 2.4% of browser crashes
    • no obvious progress in the bug
  • Crash in [@ mozilla::dom::ServiceWorkerRegistrationInfo::MaybeScheduleTimeCheckAndUpdate]: https://bugzilla.mozilla.org/show_bug.cgi?id=1609665 - 0.6% of browser crashes
    • diagnostics intended to land in b7 had to be backed-out
  • Crash in [@ mozilla::dom::ServiceWorkerManager::UpdateInternal]: https://bugzilla.mozilla.org/show_bug.cgi?id=1604943 - 0.4% of browser crashes
    • got wontfixed for 73 early in the cycle, but the volume turns out to be non-trivial

Release

mc2 crash rate: 1.49, crash indicence: 1.07%, mc1 summary score: 2.57 thursday mc2 crash rate: 1.41, crash indicence: 1.07%, mc1 summary score: 2.84

[72.0.2]

• nothing apparent in stability data that should prohibit a full rollout of 72.0.2
• stability fixes that were uplifted have apparently been successful: https://bugzil.la/1607703,1607716,1609184
• sudden spike in [@ mozilla::ScriptPreloader::CacheWriteComplete]: https://bugzilla.mozilla.org/show_bug.cgi?id=1610246
  • seems independent from anything we've shipped, affecting zh-cn builds
• Crash in [@ OOM | large |...| mozilla::gfx::SourceSurfaceRawData::GuaranteePersistance]: https://bugzilla.mozilla.org/show_bug.cgi?id=1604535 - 1.3% of tab 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.

¯\_(ツ)_/¯

QE

Nightly

• fairly low volume of PI requests for all the QA teams.
• Search fetaures are waiting for meeting with Engineering (email sent last week), work not started.
• 4 weeks cycle updates - no major concerns from QA, planning is on track

Aurora / Dev Edition

Beta

• on track, prelim reports are expected by end of this week
• DoH US Rollout: https://jira.mozilla.com/browse/PI-445, QA is awaiting for exception approval process to be completed.
  • QA may not be able to provide prelim status report for this work, pre-release sign-off will be shared as per the schedule.

Action items

Mobile

User Advocacy/ SUMO Report

Roundtable

• RelMan coverage next week
  • Ryan on PTO, Julien and Pascal will keep an eye on approval requests
• Updating; https://wiki.mozilla.org/Release_Management/Release_owners
  • Fx74 is missing several owners. Do we have a new owner for Fx75? Pascal is listed for both 74 and 75.
• (Softvision RO) will be out on 24 Jan

Special Topics

Post-Mortem (Tues 2wks from GA Release)

• 72 PM week after Berlin, exact timing TBC

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