Meeting Notes Meetings notes from the Mozilla community


Mozilla Platform: 2013-07-30

Filed under: Posts — Tags: — Jesper Kristensen @ 11:00 pm

Hot Bugs

(Important bugs for which we need to find owners or additional help. If known, please include suggested team or knowledge needed to advance the bug.)

Orange Factor
  • bug 889869 – Intermittent hangs in Linux reftest-ipc/crashtest-ipc.
    • Stacks show and
    • Unclear who should own. – lmandel to help find owner.
  • bug 886999 – Intermittent OSX crashes in system OpenGL library.
    • Layers issue?
    • lmandel to follow-up with Jet/dbaron.
  • bug 890744 – Windows WebIDL build issues.
    • High probability of Windows needs-clobber bustage whenever a .webidl change lands.
    • Causing numerous retriggers and wasted build time.
    • bsmedberg to follow-up with Joey.
  • bug 897503 – crash in nsHttpConnectionMgr::OnMsgShutdown mainly with extension – #1 on trunk, needs assignee (jcranmer and jdm have commented on it but it’s unassigned still) – Jason Duell is looking for an owner
  • bug 898156 – Background thumbnail generation causes a crash – was reported against Unbuntu, but also happens on Windows, needs owner.
  • bug 897872 – crash in mozilla::dom::ContentParent::RecvAddGeolocationListener – also caused by background thumbnail generation, jdm has commented but this needs to be assigned as well. – Lawrence is looking for an owner on this and the previous one
  • bug 898768 – crash in mozilla::dom::CanvasRenderingContext2D::Demote – spiking on Android trunk, needs owner. – blasssey looking for owner.

The Need To Know

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

Notices/Schedule (akeybl/lsblakk/bajaj)

  • FF23.0b10 Desktop shipping later today
  • FF 23.0 RC builds are in progress (desktop & mobile)
  • FF 17.0.8esr builds in progress
  • Merge Day next Monday
49 bugs (48 bugs last week) 8 bugs (36 bugs last week)
Unresolved Aurora 24 Trackers (non-security, not tracked for Beta) Unresolved Beta 23 Trackers (non-security)

Build Changes (gps)

(Build changes of which engineers should be aware.)

Upcoming Outages/Upgrades

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

  1. Wednesday-Friday, July 31-Aug 2, 0600-1000 PT — There will be reduced mac mini (builder/tester) capacity for 4 hours each day to support electrical expansion work in SCL3. More details in bug 897111.
  1. Thursday, Aug 1, 0500-1000 PT — project branch “birch” will be closed to complete the migration to the replacement branch “b2g-inbound“. More details in bug 898198 (background).

Key Issues

(Non team specific issues that impact engineering.)

  • Reminder: fx-team now has sheriff-coverage. If you are on fx-team, please try using fx-team instead of mozilla-inbound.
  • If you need either b2g-for-panda builds or b2g-for-otoro builds, please comment in threads in newsgroup. We’re planning to drop.
  • Bugzilla RelEng component reshuffle. Details in

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.)

Accessibility (dbolter)

<Read Only>

  • Landed some work to make Gaia accessibility easier (bug 895711,bug 894485)
  • First and major round of accessible text interface work for lines landed.
  • Moved team meetings to every second Monday.

Add-on SDK (dtownsend)

No Update

App Tools (dtownsend)

No Update

B2G Services (dougt)

No update

Developer Tools (dcamp)

Firefox Metro (bbondy/jmathies/mbrubeck)

<Read Only>

  • 11th sprint completed.
  • Async pan zoom support landed pref’d off w/ ‘layers.async-pan-zoom.enabled’ (bug 869940). Follow up work tracked by bug 886321.
  • Support for new file downloads UI landed (bug 831942).
  • Progress on getting Talos tests going (bug 773817).
  • More UI polish.

Firefox Mobile (mfinkle/blassey)

  • Contacts API Landed bug 857730
  • Landed APZC improvementsbug 859929, bug 895904
  • Great progress on Multi-APZC bug 866232
  • Progress on WebRTC, FHR, Mixed Content Blocking, About:Home Hackathoning
  • More work on the above will continue next week as well as planning for Fx26, Fx27, Fx28

Firefox OS Browser (blassey)

First sprint wrapped up
  • Tile layers drawing (reduces jank)
  • layers coordinate system refactor for layers (support hi dpi)
  • FAQ url to HTTPS
  • clear private data to use class=danger
  • sad face icon for crashed tab’s thumbnail
  • share URL of a webpage

Firefox OS Devices/Porting/Bluetooth (mchen)

<Read Only>

  • Last Week
    • Bluetooth
      • AVRCP 1.3 – Reviewing. (6 patches got review+) (Bug 842948)
      • HID – Implementing. (Bug 890186)
    • Devices/Porting
      • Bluedroid – Modify build system for identifying BlueZ and Bluedroid.
      • Tablet – FxOS porting on freescale chipset.
      • Upload device called wasabi into support list for CDMA reference phone.
      • Helix Bugs Fixing.
    • MTP – Study
  • This Week
    • Same with Last Week.
    • Evaluate the delta between JB 4.2 & 4.3.
  • Blocking
    • None.

Firefox OS Media Apps (hema)

<Read Only>

  • Last Week
    • Bugs – 896250, 830191, 897239, 896363, 890427, 896907, 894835, 873937, 890427, 896374, 895857, 893171, 896580, 896176, 891797, 898318, 897216, 887966, 885132,866902, 884688
    • Continued working on 1.2 User Stories
  • This Week
    • Blocker Bugs
    • 1.2 User stories (Music Status Icon/Music Controls on Lockscreen)
    • Media Team Meetup coming up on Aug 6th with focus on product/sprint planning
  • Blockers
    • None

Firefox OS Media Recording (cjku)

<Read Only>

  • bug 896391 – (WebRTC) memcpy from camera preview’s GraphicBuffer is slow.
  • bug 877193 – (RTSP) Configure memory usage for RTSP streaming
  • bug 896286 – (Gfx) genlock error when drawing the network icon(image layer)
  • bug 894262 – (Gfx) Merge GrallocPlanarYCbCrImage to GonkIOSurfaceImage
  • bug 845169 – (IME OOP) Target events “properly” at overlapping app frames
  • bug 875277 – (WebAudio) Implement WaveShaperNode.oversample

Firefox OS Productivity (doliver)

<Read Only>

Last week:

  • Good progress on Gaia integration testing improvments, see
    • Our team will start reaching out to other Gaia teams to let them know about the changes and how they can use them
  • Wrapping up sprint 1 for v1.2 and planning for sprint 2
    • We’ll be getting started on implementing email notifications this week. Various user stories here will keep us busy for the majority of the 1.2 dev cycle (through 9/15)
    • Productivity backlog:
  • Improving the handling of email attachments to handle larger files:
  • Misc work to support the 1.1HD branch



Firefox OS Radio/GPS (kenhkchang)

<Read Only>

  • Last week
    • Fix Leo+ issues.
    • CDMA, implemeting call waiting/switching, RSSI, OTASP, nsIDOMMozMobileCellInfo, roaming selection function, network select mode, and ECB for gecko part.
    • OMA CP, implementing this function for gecko and the Gaia app is owned by partners.
    • NFC, analyzing how to design NFC architecture for all NFC user stories and share these information to team members.
    • WPA-EAP, moving Crypto to WebIDL
  • This week
    • Fix Leo+ issues.
    • CDMA, to implemet call waiting/switching, RSSI, OTASP, CDMA subscription information, information record, and ECB for gecko part.
    • OMA CP, to debug this function in real network.
    • NFC, to discuss the webAPI.
    • WPA-EAP, to do the test cases.
    • Multi-SIM, to know the efforts.

GFX (milan)

  • Had a couple of people at siggraph, look for a report in one of the upcoming rendering meetings
  • SkiaGL: Android (close), B2G (evaluating), Mac (may use for testing)
  • Considering GL context multi-plexing

Identity (jedp)

<Read Only>

  • Team mostly focused on server-side things atm
  • WebRTC auth ongoing
  • Sign-in to FirefoxOS (“Firefox Account”) still awaiting UX/Product decisions

JS (terrence)

<Read Only>

  • Last Week
    • Compiler (JIT)
      • Our #2 topcrash on Android should be fixed: bug 894251.
      • Prototyping work for JS threading primitives has started in earnest.
      • IonMonkey will now compile getter/setter functions.
      • Division on ARM hardware in IonMonkey is better, faster, and stronger now.
    • Garbage Collection
      • Post barriers for the browser are done.
      • We are now actively driving exact rooting hazards to zero: bug 898606.
    • Front End and Other
      • Include order is now standardized across js/src/.
      • Added ES6 binary and octal literals. 0O0 is now valid JavaScript.
  • This Week
    • Compiler (JIT)
      • Make OdinMonkey faster on ARM.
      • VTune support for OdinMonkey.
      • Float32 compilation support for OdinMonkey.
      • Make IonMonkey compile try/catch.
      • Integrate TraceLogger with devtools.
    • Garbage Collection
      • Finish adding FxOS GGC builds to awfy.
      • Get the exact rooting static analysis deployed on TBPL.
      • Continue fixing exact rooting hazards.
    • Front End and Other
      • JSBool is finally on the chopping block in bug 898914 and bug 899017.
      • The Intl API should be landing soon.
  • Blocking
    • None.

Media (mreavy)

<Read Only>

  • IETF this week in Berlin; team is very busy
    • Opus was the topic of the technical plenary session
    • WebRTC (and Opus) were used to distribute the plenary session to remote attendees!
  • Expect to land audio getUserMedia support for B2G bug 825112 this week

Top work items: (unchanged)

  • Audio latency/quality: WebRTC Audio Issues
  • Video framerate and resolution adaptation
  • Performance, especially on mobile
  • Working towards heavier internal dogfooding

Necko (jduell)

  • bug 887753: Fixed on m-c: Server not found after reconnecting to etherpad
  • new cache: ironing out bugs, hoping for full initial API implementation and green gum branch in a few weeks.
  • architecting some ideas for fixing “lame-network” bugs
  • lots of PTO on team

Performance (vladan)

Bugs of note:

  • bug 867143: SessionStore now avoids recollecting the same data and caches its state aggressively
  • Dhaval posted a rough draft of ext4 transparent decompression patches:
  • bug 898056: the new Talos “tab animation regression test” is almost ready (see blog post below)
  • bug 890336: Tested benefit of delaying D3D9 initialization startup. It looks there is still a strong startup benefit to delaying creation of this layer manager
  • bug 893976: Added a mach command to update uuids for specific interfaces and their descendants. (python reimplementation of an existing perl tool)
  • bug 898006: Reduced code size on ARM


Seceng (sstamm)

WebAPI (overholt)

Quality Programs

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

CritSmash (dbolter)

MemShrink (njn)

No update.

OrangeFactor (ryanvm)

  • Past week’s OrangeFactor: 6.03 (Previous Week: 4.98).
  • 20 intermittent failures fixed in the last week – List – Thanks!.

Stability (kairo/bsmedberg)

  • Overall values are good on all channels, all of them are in nice shape for uplift!
  • The Stability Work Week is coming up in MV, Aug 18-23 (schedule). If you have any wishes/priorities for Socorro (, please make sure bugs are filed in the Socorro product and let KaiRo know about them!


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

<Read only beyond this point>

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.)

Engineering Meeting Details

  • Tuesday 2013-07-3011:00 am Pacific
  • Dial-in: conference# 98411
    • US/International: +1 650 903 0800 x92 Conf# 98411
    • US toll free: +1 800 707 2533 (pin 369) Conf# 98411
    • Canada: +1 416 848 3114 x92 Conf# 98411
    • FR/Paris: +33 1 44 79 34 80, x92 Conf# 98411
  • Engineering Vidyo Room / MTV Warp Core / TOR Finch / SFO Warfield / PDX Widmer
  • join #planning for back channel

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