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Engineering Meeting Details

  • Tuesday 2014-09-02 - 11:00 am Pacific Standard Time
  • Dial-in: Audio-only conference# 98411
    • People with Mozilla phones or softphones please dial x4000 Conf# 98411
    • US/Toll-free: +1 800 707 2533, (pin 4000) Conf# 98411
    • US/California/Mountain View: +1 650 903 0800, x4000 Conf# 98411
    • US/California/San Francisco: +1 415 762 5700, x4000 Conf# 98411
    • US/Oregon/Portland: +1 971 544 8000, x4000 Conf# 98411
    • CA/British Columbia/Vancouver: +1 778 785 1540, x4000 Conf# 98411
    • CA/Ontario/Toronto: +1 416 848 3114, x4000 Conf# 98411
    • UK/London: +44 (0)207 855 3000, x4000 Conf# 98411
    • FR/Paris: +33 1 84 88 37 37, x4000 Conf# 98411
    • Gmail Chat (requires Flash and the Google Talk plugin): paste +1 650 903 0800 into the Gmail Chat box that doesn't look like it accepts phone numbers
    • SkypeOut is free if you use the 800 number
  • Engineering Vidyo Room / Air Mozilla / MTV Alien Nation / TOR Finch / SFO Warfield / PDX Hair of the Dog
  • join #planning for back channel

Need To Know

(Release and system issues that may impact engineering this week.)

Notices/Schedule (lmandel)

Next Merge: TODAY Next Release: July 9, 2024
Central: 129 Aurora: 54 Beta: 128 Release: 127
  • It's release day! Firefox 32 is live.
    • Tracking for Fennec 32: bug 1060009 - Investigate native crash at /dev/ashmem/ reported on Google Play
  • Firefox ESR 24.8.0 and 31.1.0 are also live.
    • This is the last release for ESR24. This means we're back to a single ESR31 train.
  • Next up
    • 33 beta1 is scheduled to ship on Thursday
    • 34 aurora updates are scheduled to be re-enabled on Friday
  • Reminder that the merge is happening today

Build Changes (gps)

(Build changes of which engineers should be aware.)

RelEng (catlee)

(Repo, test, and other information for engineers from the release engineering team.)

Upcoming Outages/Upgrades

(System outages/upgrades and tree closures that impact engineering.)

Quality Programs

(An opportunity to hear about status with the various quality programs that do not have a formal team structure.)

OrangeFactor (ryanvm)

<Read Only>

  • Past week's OrangeFactor: 5.01 (last week: 3.67).
  • Lots of fallout from pre-uplift landings (B2G feature landings, MediaStreamGraph refactor, etc) along with more infra issues.
  • Widespread Android 4.0 failures continue to be a problem - now being tracked in bug 1059797.
  • 23 intermittent failures fixed in the last week - List - Thanks!.

CritSmash (dbolter)

  • another week in the right direction :)

MemShrink (njn)

Stability (kairo/bsmedberg)

<Read Only>

  • [Overall numbers] look OK for 32 beta and 31 release.
    • 33 still has high numbers of Graphics crashes, probably mostly due to OMTC. Also, bug 1061693 tracking D3D11 crashes might be relevant.
    • 34 had a spike of OOM|small crashes, but hopefully bug 1053934 fixed that before moving to Aurora.

Team Stand-ups

(In <2 mins, what did your team accomplish last week, on what is your team working on this week, and on what, if anything, is your team blocked? No questions during the stand-ups. All questions should be asked during the roundtable.)

A*Team (jgriffin)

Accessibility (dbolter)

App Tools (prouget)

B2G Services (dougt)

This has been merged into Cloud Services.

Cloud Services (mmayo)

Developer Tools (robcee)

DOM (jst/overholt)

Electrolysis (e10s) (blassey)

Firefox Desktop (gavin)

Summary of Work In Progress

  • You can see the status of the current iteration (35.1) in progress here

Summary of Recent Landings

  • Team landed 50 bugs over the last week, to close out the 34.3 iteration.
  • Details of landings from the past week can be seen here

Firefox Mobile (snorp/blassey/mfinkle)

Work In Progress

  • Chromecast - continuing to bug fix based on nightly feedback
  • WebRTC OpenGL on Roku, tab sharing support bug 1048425
  • Experimenting with Bing as the default search engine - bug 1049108
  • Remote Tabs home panel bug 1014994,first patches have landed
  • Moz Stumbler should be landing in nightly this week.
  • Tablet refresh: Continuing to progress
    • bug 1046200 - Create BrowserApp.isNewTablet()
    • bug 1047561 - Create settings UI for enabling the new tablet UI
    • bug 1048575 - Disable dynamic toolbar when in new tablet UI
  • Janus
    • Client connection speed assessment

You can find more on upcoming feature plans in the[roadmap]

Landings from the past week

Nightly (129)
  • Add telemetry for Settings usage ( Bug 996753 )
  • "Clear Private Data" does not clear "Recently closed tabs" from Recent Tabs ( Bug 1031273 )
  • Auto complete pop up doesn't go away ( Bug 1037353 )
  • Share overlay request backend: stage 1 ( Bug 1044794 )
  • Tapping the branding logo in the browser widget opens a new tab ( Bug 1048545 )
  • Crash in gfxContext::PushNewDT (OOM) with reproducible test-case ( ( Bug 1053934 )
  • crash in java.lang.IllegalStateException: Not connected. Call connect() and wait for onConnected() to be called. at Source) ( Bug 1055012 )
  • Flash doesn't work on Android L ( Bug 1055166 )
  • JavaScript Error: "this._items[aData] is undefined" {file: "resource://gre/modules/PageActions.jsm" line: 57}] ( Bug 1055212 )
  • crash in java.lang.NullPointerException: at org.mozilla.gecko.ChromeCast.verifySession( ( Bug 1057866 )
  • Specify main activity org.mozilla.fennec.App with a default intent over ( Bug 1058160 )
  • Default search engine probe recording null instead of "other" ( Bug 1058352 )
  • network error pages (about:neterror) have "XML Parsing Error: undefined entity" - due to Bug 1042196 ( Bug 1059096 )
  • Don't set noHistory for onboarding activity ( Bug 1059440 )
  • Regression: Thin pixel bar present next to the back button on tablets in the new toolbar ( Bug 1059450 )

Firefox OS Communications (scravag)

Firefox OS Connectivity (vchang)

<Read Only>


Firefox OS Devices/Porting (ericchou)

<Read Only>

  • Gonk team (led by Thomas Tsai)
    • Team Summary
      • TBD
  • Bluetooth (members: Shawn Huang, Ben Tian, Jamin Liu, Jocelyn Liu)
    • We have received many inputs about "Entering Bluetooth page then Settings app crashes", after investigation we found it's a regression of a Gaia change bug 1032071.
    • bug 1060216 - BluetoothAdapter.discovering wouldn't be updated after calling startDisocovery or stopDisocovery - landed (1.4+)
    • bug 1059136 - Expose Adapter Bluetooth Uuids field - landed (1.4+)
    • bug 1060229 - Get/SetProperty DiscoveryTimeout failed due to missing property length - landed (1.4+)
    • bug 1056413 - Pairing devices after cancelling results in unresponsive page - landed (2.0+)
    • bug 929376 - Content process should be able to use API: BluetoothManager.IsConnected() - landed (2.1+)
  • Media Playback (members: Bruce Sun, Blake Wu, Star Cheng)
    • bug 1033915 - Integrate MP3FrameParser with MediaCodecReader - r+ (2.1 feat+)
    • bug 1046578 - [Loop] In a call the audio is very low - WIP (2.0+)
    • Blake is co-working with Anthony Jones to make MSE work on Flame. There are still 4 issues need to be resolved.
  • Device Storage (members: Alphan Chen, Eden Chuang)
    • Eden Chuang, SW engineer onboard on 9/1, will join this group.
    • The user story of MTP has been verified and closed. Thanks to Alphan and Dave Hylands.
    • TPE QA Alison has started testing MTP on Flame and has filed several issues.

Firefox OS Media (slee)

Firefox OS Media Apps (hema)

Firefox OS Media Recording(pchang)

Firefox OS Productivity (doliver)

Firefox OS RIL (htsai)

<Read Only>


Firefox OS Systems - Front End (gwagner)

Firefox OS Systems - Platform (timdream)

GFX (milan)

  • Summary of 34 goals called out on 7/22, with status:
    • Desktop plans for 34:
      • bug 1036457 tracks having OMTC on Windows ride the 34 train - still looking good, and actually riding 33 train.
      • bug 993639 towards full E10S support - a number of the blockers for this meta have been fixed, all by non-Graphics team engineers.
      • bug 1015218 Linux move to GTK3 - done
    • Firefox OS plans for 34:
      • bug 989403 transform: scale(X) not being repainted when assigned to - done
      • bug 967844 support multi-layer APZ controllers - late landing (weekend work by N.Z., on inbound now), may need an uplift.
      • bug 1016539 color related (b&w, invert, contrast) accessibility features - done, but Gaia work has not landed yet.
    • Other active work not locked to 34:
      • bug 996611 Skia for content everywhere (where everywhere excludes D2D) - we believe we have all the bug fixes we want, and the rest of the failing tests will be fuzzed.
      • APZ on desktop - side project, ongoing.
      • tiling on desktop - ongoing, week of 9/22 is the current target for landing "something".

JS (naveed)

  • Compiler (JIT)
    • bug 1059555: Found bug in js/src/SplayTree's implementation of |forEach|. Fixed and landed.
    • bug 1057082: Landed generalize ProfilingFrameIterator and get it ready to support more frame types than just AsmJS frames.
    • bug 1046585: Finished removing js/src/assembler
    • bug 1056795: Optimized jit::ArrayPushDense
  • Garbage Collection
    • bug 995284: Made GC behvaiour deterministic in shell builds
  • Front End and Other
    • bug 894596: Patch to allow inlining global variable values (bug 894596)
    • Octanev2 benchmark had a minor change last week. AWFY updated to use latest Octane source.
    • bug 992267: Basic Odin SIMD support: implemented, reviewed, rebased, and landed \o/ - Great work Benjamin Bouvier and team

Layout (jet/dbaron)

Notable Landings

  • bug 967844 - (multi-layer-apz) Allow content from one scrollable element to fragment into multiple layers in order to fully support async scroll of out of flow content
  • bug 1059033 - TiledDrawTarget has a lot of overhead for some operations
  • bug 982338 - (osx-tiling) Use tiled thebes layers on OSX
  • bug 1033114 - Implement playback control on AnimationPlayer

Media (mreavy)

<Read Only>

  • Landed the major MediaStreamGraph refactor to be driven off the audio output callbacks (bug 848954)
  • Bunch of screen-sharing and openh264 improvements/tweaks landed
    • Mac screenshare with multi-screen fixed
    • Pref to allow screenshare on XP and 10.6
    • Higher resolutions up to 1280x720@30 supported in OpenH264
    • Resolution adaptation due to load and bandwidth available now enabled for H.264
  • Major refactor of signaling code in webrtc (SIPCC) to tread-flatten it and remove dead or useless code
    • Should improve call connection rates considerably (we were getting bogged down in MainThread in things like multi-party TokBox calls)
    • No obvious significant regressions yet
    • Plugged a bunch of leaks
  • Turned off PeerConnection tests on B2G Debug emulator; it's too slow to be useful
    • jgriffin hoping to move them to faster CPUs later this week; faster hardware if needed

Necko (dougt/jduell)

<Read Only>

Performance (vladan)

Blog posts:

Seceng (grobinson)

Shumway (tschneidereit)

WebAPI (overholt)


(Comments and questions that arise during the course of the meeting or otherwise do not have a section.)

<Read only beyond this point>

Friends of the Tree

Mailing List Threads

(Threads that are likely to be of interest to engineering from various mailing lists.)

Good Reads

(Links to blog posts, books, videos, etc. that you think will be of interest to others.)

irc #planning Log From This Meeting

10:58 KaiRo: cpeterson: no voice update from me this week, I filled in a readonly and am watching on airmo.
10:58 cpeterson: KaiRo: ok, thanks
10:59 Noah_: Mossop: for example, under Based on Gecko 33, Firefox OS 1.4 - I see the date text overlapping "Currently in BETA channel"
10:59 Noah_:
11:00 Noah_: and more overlapping on various sections underneath that :/
11:02 cpeterson:
11:03 KaiRo: isn't it always September on the Internet?
11:05 jorgev: heh
11:06 vladan: cpeterson:  i have an update
11:11 jesup: The media Mac issue was MP4 native support IIRC
11:15 jesup: I think you jsut have to disable it for long enough to log in; see comments on Yammer and elsewhere
11:15 jesup: re: http2/spdy
11:16 jesup: milan_: ^
11:16 KaiRo: yes, see
11:16 milan_: jesup: yup, thanks - it worked
11:16 jesup: np
11:17 milan_: jesup: but now I forgot why I was trying to get to google docs :)
11:17 jesup: just as well