Platform/2011-06-28

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JS

• We got a break on an EnterMethodJIT crash!
  • Users had been reporting crashes on Yahoo Mail Beta (bug 655660) and others.
  • David Anderson was able to reproduce the crash and fix it.
  • The bug was a too-small bitfield holding patch locations for ICs that could grow very large.
  • This bug might be a good fraction of the EnterMethodJIT crashes we get.

• We're starting work on GC topcrashes
  • Bill McCloskey is finishing a new Breakpad feature to snapshot stack traces at desired points (e.g., when GC runs) and put them in minidumps: bug 662646.
  • Figuring out these crashes will take a while--we'll need to experiment with different measurements and analyze data over time.

Layout

• text-overflow landed! Includes text-overflow:<string> and text-overflow:<left> <right>! Handles all sorts of edge cases other browsers don't reach!
• Looks like Jonathan Kew got a 6% Tp win on MacOS 10.6 using some new font APIs
• Zzzzz

Tree Management

• disable tp4 (except for older release branches)
  • tp5 catches the same regressions and has been running side-by-side it for almost two weeks on all branches
  • this was announced last week on this meeting and through mailing lists
  • everything is ready to disable it on this Thursday
  • please read more about it on this blog post

• Turning off Firefox 3.5 automation this week.
  • http://oduinn.com/blog/2011/06/27/stopping-firefox-3-5/
  • bug 666407

Roundtable

• Telemetry is on, start adding probes: https://blog.mozilla.com/tglek/2011/06/22/developers-how-to-submit-telemetry-data/
• MSVC 2010 Migration: http://blog.kylehuey.com/post/7015378885/migrating-to-msvc-2010 - followup to .platform