Firefox/Channels/Meetings/2017-03-14

Channel Meeting Details

• Tuesdays and Thursdays at 10am 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

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

jcristau, jlorenzo, lizzard, RyanVM, philipp, ritu, erin, bds, dveditz, kevin, nicole, marcia

Schedule Update

• 52.0 updates at 10%
  • still unsure how widespread https://bugzilla.mozilla.org/show_bug.cgi?id=1345355 might be
  • websense?
  • Philipp confirmed there are no support issues (via SUMO)
  • Propose increasing updates to 20/25% today and watch for another 48 hrs

• 53.0b2 desktop and mobile released

• Note, the pwn2own browser hacking contest is this week. If they report any issues, we will likely do a dot release or chemspill
  • no ridealongs for "chemspill" (unless maybe we would do a security related dot release for them anyway)
  • QA availability tbd for weekend chemspills
  • releng
  • sheriffs

Stability

Aurora

awsy rate: 4.93 (browser 0.90, content 4.03) telemetry (m+c-s) from saturday: 5.46 (week before: 2.30)

[marcia]

• Explosiveness report shows a few spikes: https://crash-analysis.mozilla.com/release-mgmt/2017-03-13/2017-03-13.firefox.aurora.explosiveness.html

Beta

awsy rate: 0.99 (browser 0.68, content 0.31) telemetry (m+c-s) from saturday: 4.93 (week before: 4.69)

53.0b1 regressions:

• Crash in @0x0 | ffi_call with Internet Download Manager: https://bugzilla.mozilla.org/show_bug.cgi?id=1338170 (12.5% of browser crashes)
  • addon is apparently blocklisted through amo but still very high number of crashes
• Rust content crash in std::sys::imp::thread_local::create: https://bugzilla.mozilla.org/show_bug.cgi?id=1345856 (3.32% of content crashes)
  • may just be a signature change of https://bugzilla.mozilla.org/show_bug.cgi?id=1320134
• Content crash in PromiseReactionRecord::setHandlerArg: https://bugzilla.mozilla.org/show_bug.cgi?id=1346012 (1.18% of content crashes)
  • looks partly correlated to avast but needs further investigation
• also filed a couple of lower volume regressions: https://bugzil.la/1345652,1345657,1346421

Release

awsy rate: 0.80 (browser 0.52, content 0.29) telemetry (m+c-s) from saturday: 3.07 (week before: 2.77)

52.0

• Crashes with last LavaFox theme update (2% of browser crashes):
  • nsFrame::BoxReflow https://bugzilla.mozilla.org/show_bug.cgi?id=1346721 (fix in the addon update now)
  • nsFrame::GetXULPrefSize https://bugzilla.mozilla.org/show_bug.cgi?id=1346715
• Startup crashes with linux in nsDependentCString::nsDependentCString: https://bugzilla.mozilla.org/show_bug.cgi?id=1345413 (1.8% of browser crashes, 1217 installations)
  • root identified, patch reviewed this morning

52.0esr

• A number of startup crashes on WinXP with reason "Unhandled C++ Exception": https://crash-stats.mozilla.com/search/?reason=%3DUnhandled%20C%2B%2B%20Exception&platform_pretty_version=%3DWindows%20XP&version=52.0esr
• Startup crash on Vista in mozilla::gfx::DrawTargetD2D1::factory: https://bugzilla.mozilla.org/show_bug.cgi?id=1347098 (92 installations reported last week)

Nightly

awsy rate: 16.92 (browser 3.88, content 13.03) telemetry (m+c-s) from saturday: 25.64 (week before: 7.67)

[marcia]

• Large crash spike due to startup crash https://bugzilla.mozilla.org/show_bug.cgi?id=1346215
• Large crash spike in https://bugzilla.mozilla.org/show_bug.cgi?id=1160157 starting on March 9th. Almost 4K in crashes. Email sent to stability list to get some insight into what might be happening
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1340398 is a possible culprit.
  • Reference Comment from Milan https://bugzilla.mozilla.org/show_bug.cgi?id=1306168#c6

Mobile

awsy rate: 1.20

[marcia]

• Release crash rate is within the awsy threshold
• Some spikes after release - https://crash-analysis.mozilla.com/release-mgmt/2017-03-13/2017-03-13.fennecandroid.release.explosiveness.html

QE

• Any testing planned for new Windows release? (Win10 insider) "creator" 5% of nightly users are on it already
  • Need to follow up with SV team
  • Unconfirmed ship date is 11-April (next Patch Tuesday) w/ aggressive phased rollout (full unthrottling by end of April)
  • Win10 usage telemetry: https://sql.telemetry.mozilla.org/dashboard/windows-10-user-strata

Roundtable

[philipp] is there still the need to rollout e10s to only 50% of the eligible population on beta?

• changing % to 90% e10s and 10% control. (for 54 beta) we have product signoff for this change.
• enabled e10s for dev tools users by default in beta 53.
• what other experiments are planned for 54 beta
• is the cohort consistent or do we switch people in and out of the control group? elan will ask blake and felipe