Firefox/Channels/Meetings/2019-04-02

Channel Meeting Details

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

Video/Teleconference Details - NEW

• 650-903-0800 or 650-215-1282 x92 Conf# 99951 (US/INTL)
• 1-800-707-2533 (pin 369) Conf# 99951 (US)
• Vidyo Room: Release Coordination
• Vidyo Guest URL

Attendees

marcia, Aryx, lizzard, RyanVM, philipp, jcristau, pascalc, overholt, jlund, wlach, Thomas, TomGrab, Tania

Schedule Update

Current releases dashboard: https://mozilla.github.io/delivery-dashboard 67.beta 7 just shipped

Off-train releases

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

Stability

• Some work on Socorro done yesterday. See the email from Will-KG to @stability for more info
• Fallout from CheckedInt assertions restricted to fennec so far

Nightly

firefox nightly summary score: 7.99, Thursday 10.17

• Earlier today the score was missing, jcristau filed https://bugzilla.mozilla.org/show_bug.cgi?id=1541033
• Jan filed quite a few DOM | Web Storage bugs https://mzl.la/2U9tSPv
  • note that this will not ride in 67 (we were hoping for an uplift but the hard-to-reproduce crashes coming from Socorro are proving hard to fix (well, all of them))
• Filed https://bugzilla.mozilla.org/show_bug.cgi?id=1541114 to account for a crash happening with a cloud based videoconferencing site
• Core | A/V Playback https://bugzilla.mozilla.org/show_bug.cgi?id=1535335 is rising. One fix attempted.
• Latest nightly crash triage: https://wiki.mozilla.org/NightlyCrashTriage/2019Q1#2019-04-02_-_gsvelto

Beta

firefox beta summary score: 4.38, Thursday 5.01

[67.0b6] regressing crashes

• Content crash in [@ mozilla::dom::ClientSource::SetController]: https://bugzilla.mozilla.org/show_bug.cgi?id=1535699 - 5.8% of tab crashes
  • under active investigation; regressed by https://bugzilla.mozilla.org/show_bug.cgi?id=1525125
• IndexedDB crash: https://bugzilla.mozilla.org/show_bug.cgi?id=1528690 - 3.5% of browser crashes
  • regressing in volume in the 67 cycle
  • Tom Tung is on this
• shutdown crash (sec): https://bugzilla.mozilla.org/show_bug.cgi?id=1535301 - 1.5% of browser crashes --@Marsha - Please provide bug access to Wennie Leung; done
• Crash in mozilla::dom::quota::QuotaObject::LockedMaybeUpdateSize: https://bugzilla.mozilla.org/show_bug.cgi?id=1516333 - 1.5% of browser crashes
  • related to LSNG work, so later beta builds probably won't be affected as this is not not riding to release yet (correct)
• Crash in walCleanupHash (sqlite): https://bugzilla.mozilla.org/show_bug.cgi?id=1539640 - 0.5% of browser crashes

Release

firefox release summary score: 2.26, Thursday 2.64

• [@ OOM | small ] signature rising in 66 by ~1300 daily reports - no apparent correlations
  • filed https://bugzilla.mozilla.org/show_bug.cgi?id=1541092 (only covers a fraction of the increase though)

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.

• Release

fennec release summary score: 17.42, Thursday 18.79

• • https://bugzilla.mozilla.org/show_bug.cgi?id=1526396 continues to be high, but not much we can do about it. Filed

https://bugzilla.mozilla.org/show_bug.cgi?id=1541090 to add that signature to the skip list.

• • https://bugzilla.mozilla.org/show_bug.cgi?id=1508740 is #6 overall, and unowned at the moment

• Beta

fennec beta summary score: 144.82, Thursday 323.18

• • Top crash https://bugzilla.mozilla.org/show_bug.cgi?id=1472526 is correlated to Adreno 530
  • #3 overall crash in DOM - Web Storage - https://bugzilla.mozilla.org/show_bug.cgi?id=1534882
  • #4 overall crash - https://bugzilla.mozilla.org/show_bug.cgi?id=1539465 - [@ mdb_env_cthr_toggle]. Still trying to isolate the cause.

• Nightly

fennec nightly summary score: 70.57, Thursday 75.35

• • https://bugzilla.mozilla.org/show_bug.cgi?id=1521158 is still the top crash is there is work in progress
  • #2 top crash is a series of crashes including https://bugzilla.mozilla.org/show_bug.cgi?id=1540748 which are because of integer overflow checks which were made into release asserts
  • #3 top crash is https://bugzilla.mozilla.org/show_bug.cgi?id=1318810. Theory is it is because of PGO builds
    • We should be on the lookout for other signatures such as this one that may have resurfaced
  • #4 top crash https://bugzilla.mozilla.org/show_bug.cgi?id=1523185, Crash in SnowWhiteKiller::Visit

QA

Nightly

Aurora / Dev Edition

Beta

Action items

Mobile Stability

SUMO Report / User Advocacy

Roundtable

Special Topics

Aurora/Beta Feature Review

Post-Mortem (Tues 2wks from GA Release)

https://public.etherpad-mozilla.org/p/66-0-Post-Mortem