Meeting Notes Meetings notes from the Mozilla community

Attendees

lizzard, sylvestre, Kevin, Milan, Calixte, Kim, philipp, Jlund, ritu, lmandel

Schedule Update

• Updates disabled

• Potential 45.0.2
  • Bug 1257861 – Firefox 45 fails to send Cookie header with XHR post requests done from a web worker when third-party cookies are blocked
  • Bug 1259482 – Product image not changing upon selection in Woocommerce/Wordpress
  • Bug 1258650 – Yahoo finance chart comparison “overlays” not displayed properly

• 46 Beta 6 slightly delayed

Stability

Aurora

crash rate: 2.7 (red) – browser 1.3, content 1.39
big spike in the last few days

Spikes:

• signatures: _chkstk, UnmarkGrayTracer::onChild, js::ObjectGroup::traceChildren, JS::CallbackTracer::onShapeEdge
  • _chkstk: crashes rose from 0 (2016-03-26) to 248 (2016-03-28)
  • for the others: crashes were at 0 (2016-03-25) and rose to respectively 248, 99, 54 (2016-03-28)
  • the crash reason is always EXCEPTION_STACK_OVERFLOW
  • in all the cases, the backtrace is useless (reduced to one element)
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1259699 has been fixed (in Nightly) and we should have better information (signature or backtrace) to fix these issues
    • If the fix is helping, will request uplift to Aurora

Topcrash

• signature: mozilla::SandboxBroker::AddTargetPeer
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1260115
  • #1 in topcrash
  • startup crash
  • rose from 0 (2016-03-24) to 231 (2016-03-28)

Beta

crash rate: 1.33 (red) – browser 1.17 , content 0.16

Topcrashes in beta 5

• Bug 1246108 – Core::Audio/Video:Playback Drained AudioStreams should not be restarted (kinetik) This should land with beta 6

• Bug 1158189 – Core::Networking:HTTP shutdownhang in mozilla::net::nsHttpConnectionMgr::Shutdown()
  • Bug 1259089 – Set a socket nonblocking in sts, just to be sure (dragana) (no fix yet)

• Bug 1255737 – Async shutdown crash with “MediaStreamGraph shutdown: blocking on msg thread”
  • backed out MediaStreamgraph changes. May need help with Places crashes still.

Spikes:

• bug 1158189: rose from 0 (2016-03-24) to 472 (2016-03-28) Shutdown hangs mentioned above in Core::Networking

Release

crash rate: 1.16 (red)

trusteer rapport crashes still in high numbers (responsible for ~6% of all crashes on 45.0.1) – bug 1255026

Spikes:

• bug 1132499 – signature NS_ConvertUTF8toUTF16::NS_ConvertUTF8toUTF16, increase around 50% (from 144 to 201) between 2016-03-23 and 2016-03-28, the bug has been fixed 24 days ago
  • not uplifted to Beta46

Topcrashes

• bug 1259387 – signature js::AutoEnterOOMUnsafeRegion::crash | js::GCHashSetOperations<T>::lookupForAdd, appeared 2016-03-24, right now it’s #37 in topcrash
• bug 1260470 – signature OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash | js::gc::StoreBuffer::MonoTypeBuffer<T>::trace, appeared 2016-03-24, right now it’s #34 in topcrash
• bug 1258562 – signature dom::MediaSource::Duration, #3 in topcrash and fixed in nightly, aurora and beta
  • Will probably take it in 45.0.2 if we do one

QE

Beta

Perf regression of 10% reported (not yet reproduced?) between 45.0.1 and beta (2)
https://bugzilla.mozilla.org/show_bug.cgi?id=1254684

Roundtable

• If relman adds the blocking flag to a bug, please don’t remove it. Relman should remove it.

Special Topics

Aurora/Beta Feature Review

• mid-Beta check on what’s new page: Asked Winston, Jennifer, and cmore. No what’s new page is planned.

• Aurora47
  • Plan to enable VP9 on fast machines
  • Waiting for Mid-aurora sign offs on e10s and APZ.

Post-Mortem (Tues 2wks from GA Release)

• https://public.etherpad-mozilla.org/p/45-0-Post-Mortem

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