Diff for "JamesHunt" - Ubuntu Wiki

JamesHunt

Differences between revisions 19 and 20

Contents

My name is James Hunt, and I work for Canonical as a member of the FoundationsTeam working on Upstart and other early-boot and plumbing technologies.

Upstart
- Planning to land Stateful re-exec feature.
- Wrote spec for Enhanced User Sessions.
Misc
- Wrote utfout utility, now in Debian and Ubuntu archives.
- Wrote procenv utility, (currently in Debian New queue).

Upstart
- "stateful re-exec" feature.
  - Wrote spec for Stateful Re-exec.
  - Code completed but not landed in Quantal since tests not finished.

Made significant progress on:
- https://blueprints.launchpad.net/ubuntu/+spec/foundations-o-upstart-for-admins/
- Bug 328881: implementation of Job logging for Upstart (complicated by need to support user jobs).

Upstart
- Added Debug stanza (not documented).
- Added Manual stanza.
- Added Override File support.
- Wrote Upstart bash-completion script.
- Implemented initctl show-config and initctl check-config commands (see man page.
- Wrote init-checkconf(8).
- Wrote initctl2dot(8).
- Wrote comprehensive upstart-events(7) manual page.
- Improved unit/functional tests by adding ability to run "init" and "initctl" directly.
- Co-authored the "Upstart Cookbook" (currently Draft):
  - http://upstart.ubuntu.com/cookbook/
Byobu
- Wrote /usr/lib/byobu/time_binary.
- Wrote /usr/bin/byobu-ulevel.
- Wrote /usr/bin/byobu-ugraph.
Miscellaneous
- Wrote Plymouth wiki page.
- Wrote Section 0 of UDD GettingTheSource page.
- Wrote clone tool (similar to unshare(1)).

Bug 876626: A nasty security bug caused by a small behavioural change (which itself had been introduced to make the boot more robust).
Bug 553745: The infamous plymouth SIGSEGV bug had been open for over 2 years and took a significant amount of effort to identify the fix. With 270 duplicates, it even put launchpad under strain: if the main bug links hangs/fails (due to all those duplicates (Bug 839141)), try the text view.
Bug 771372: Required taking a holistic approach and seeing the real problem, not just patching the very particular problem reported.
Bug 829980: Required tracing the problem through Upstart's udev bridge, D-Bus, udev and the kernel. Identified fact that udev is not fully specified (precise format of data is not defined).
Bug 912558: Worked closely with Daviey and community members on this "Critical" bug to identify the problem (rather a bizarre one which proved difficult to track down!) and find a fix.

JamesHunt (last edited 2015-06-11 18:58:11 by host-92-22-81-227)

-  ⇤ ← Revision 19 as of 2012-04-25 08:08:02 → 
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+   ← Revision 20 as of 2012-11-13 09:16:26 → ⇥
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-Deletions are marked like this.
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+ * [[FoundationsTeam/Specs/QuantalUpstartStatefulReexec]]
 * [[FoundationsTeam/Specs/RaringUpstartUserSessions]]
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+=== Raring (27/04/2012-18/10/2012) ===

 * Upstart
   * Planning to land Stateful re-exec feature.
   * Wrote spec for [[FoundationsTeam/Specs/RaringUpstartUserSessions|Enhanced User Sessions]].
 * Misc
   * Wrote [[https://launchpad.net/utfout|utfout]] utility, now in Debian and Ubuntu archives.
   * Wrote [[https://launchpad.net/procenv|procenv]] utility, (currently in Debian New queue).

=== Quantal (27/04/2012-18/10/2012) ===

 * Upstart
   * "stateful re-exec" feature.
     * Wrote spec for [[FoundationsTeam/Specs/QuantalUpstartStatefulReexec|Stateful Re-exec]].
     * Code completed but not landed in Quantal since tests not finished.