Firefox/Channels/Meetings/2016-03-22

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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: ReleaseCoordination
• 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

Calixte, Liz, Ritu, Philip, Kevin, Kim, Ryan, JST

Schedule Update

• 46.0b2 desktop and mobile released late Friday afternoon/Sat morning
• 45.0.1 desktop and mobile released on Friday
• 45.0.1esr and 38.7.1 released Friday

• We skipped 46.0b3 completely.
• 46.0b4 should gtb Monday and release Tuesday.
  • e10s/apz

• Hello 1.1.14 should be pushed tomorrow using Go Faster to 45 at 10% rate

Stability

Aurora

• crash rate for aurora: 1.63

 ** Startup crashes:
   ***  Bug in GetFileInfo https://bugzilla.mozilla.org/show_bug.cgi?id=1229252 (rose from position 37 to 8)
 ** No spikes
   

Beta

• crash rate for beta : 1.50 (red) browser: 1.42 content: 0.08 (from https://arewestableyet.com/ )

• Beta 2 top crashes out of ~41K crashes. Aside from OOM|small, most are Audio/Video related.

• • 3.55% Core::Audio/Video playback. Bug 1256064 - crash in mozilla::MozPromise<T>::Private::Resolve<T> (called from MediaTimer::UpdateLocked)
    • Assigned to cpearce

• • 3.16% Core::Audio/Video: MediaStreamGraph Bug 1255737 - Async shutdown crash with "MediaStreamGraph shutdown: blocking on msg thread"

   *** Possible fix in https://bugzilla.mozilla.org/show_bug.cgi?id=1256510 This fix will land in beta 4 . 

• • 2.25% Core::Networking:HTTP Bug 1158189 - shutdownhang in mozilla::net::nsHttpConnectionMgr::Shutdown()

   *** Dragana's suggestion :  We should improve telemetry for PR_Connect - Bug 1257809 and 

increase shutdown-crash-timeout: Bug 1257216 It would be good to make this change in beta for a week and look at results (It is only a pref change)

• • 2.23% of total crashes: Core::Audio/Video. Bug 1256065. This fix will land in beta 4 .

Release

• crash rate for release: 1.11 (red) ~1.04 last week, yesterday, we were at 1.25

 ** Startup crashes:
   *** No new startup crashes in browser

 ** Spiking crashes:
   *** Signature: mozilla::dom::MediaSource::Duration
     **** Crashes number increased by ~ 3000% when we turned on the 45 updates
     **** Bug reported and assigned: https://bugzilla.mozilla.org/show_bug.cgi?id=1258410
   *** Signature: EnterBaseline
    **** Crashes number increased by ~ 700%
    **** Already followed in https://bugzilla.mozilla.org/show_bug.cgi?id=1247312

Mobile

• https://crash-stats.mozilla.com/crashes-per-day/?p=FennecAndroid&v=45.0.1&v=46.0b2&v=47.0a2&v=48.0a1&hang_type=any&os=Windows&os=Mac+OS+X&os=Linux&date_start=2016-03-08&date_end=2016-03-22&submit=Generate
  • only seeing 9k adi for Monday. Should be 100k after being live for 3 days for beta 2

• beta 2 data looks odd.

RelEng

• Bug 1258528 - Beta VP tests are failing trying to clone from https://github.com/mjzffr/firefox-media-tests.git

Special Topics

Aurora/Beta Feature Review

• Beta 46: Pocket as system addon https://bugzilla.mozilla.org/show_bug.cgi?id=1245074

• Beta 46: e10s experiment changed to staged rollout/system addon plan with APZ enabled for beta 4, March 22

Post-Mortem (Tues 2wks from GA Release)

• delay the post mortem to next Tuesday.