Archive for January, 2010

Brad Figg

Kernel Team Meeting Minutes

Kernel Team Meeting Minutes January 19, 2010

Meeting Minutes

IRC Log of the meeting.

Agenda

2010-26-01 Meeting Agenda

Outstanding actions from last meeting

  1. amitk to meet with keybuk on automated boot tests.
    Noting to add, continuing this to the next meeting.

Lucid Release Status: Bugs

Release Meeting Bugs (5 bug, 5 blueprints)

Alpha 3 Milestoned Bugs (23 bugs)

Release Targeted Bugs (97 bugs)

Lucid Release Status: Milestoned Features

Milestoned Features

Lucid Release Status: Bugs with patches attached

In collaboration with the community team, it was thought that bugs with patches attached would be a good target for issues which we could likely fix quickly and therefore close. It was requested we add this info to our weekly meeting.

Blueprints: kernel-lucid-bug-handling

ogasawara is passing some action items to JFo as part of his becoming the kernel team qa person.

Blueprints: kernel-lucid-review-of-ubuntu-delta

We have added the new DEVTMPFS device to the ubuntu delta for Lucid 2.6.31 based kernels.

Blueprints: kerne-lucid-kernel-config-review

Review of built-in sub-systems planned for the distro sprint.

Blueprints: kernel-lucid-kms

Nouveau from 2.6.33-rc4 pulled into LBM and LBM generally prepared for Lucid. Currently available from my (apw) PPA for testing. Seems you need to manually installl -nouveau X-server components to get this working. X team is going to do some testing before the distro sprint, with a view to making a decision on Nouveau support and how to deliver it there.

Blueprints: kernel-lucid-suspend-resume

Nothing new to report there

Blueprints: kernel-lucid-apparmor-development

dfa optimization is done. There is a bug in table compression improvements so I (jjohansen) backed that out for the moment. I (jjohansen) am aware of 3 regressions in current upstream code base and am looking into them. They are minor regressions in corner cases but 2 of them may be coming from LSM tweaks.

Blueprints: kernel-lucid-boot-performance

The regression in filesystem mount time remains, that is planned for discussion at the Platform sprint. We had regressions caused by the late battery update changes (which gave us .3s during boot). A revised patch moving the update async appears to resolve the issue and retain the gains.

Other Release Tasks: Lucid Audio Support

Nothing major to report. The alsa c-o-d is busted right now and I’m working to get it fixed.

Other Release Tasks: Lucid Better Power Mgt

Nothing new to report here.

Other Release Tasks: EC2 Lucid Kernel Status

EC2 patch update is slow, going. I have had 1 kernel off of slightly older patchset not boot. I have rebased and pulled in the latest patches from today, and redoing. I am dropping all the conflicts in drivers that I can.

Status: Lucid

The main kernel is now pulled up to 2.6.32.6 pulled in and ready to upload. ARM Marvell Dove just updated to 2.6.32 and so we should expect some breakage there. ARM Freescale IMX51 is now on the Freescale BSP and we receieved some 30 additional patches which are applied; upload is pending security updates on the main tree. We have a lot of work outstanding still for Lucid. With only 19 of 57 tasks closed or deferred. We need to review our alpha-3 deliverables and concentrate on those.

Security & Bugfix Kernels

Dapper 2.6.15-55.81 (security)
Hardy 2.6.24-26.64 (security)
Intrepid 2.6.27-16.44 (security)
Jaunty 2.6.28-17.58 (security)
Karmic 2.6.31-18.55 (proposed)[11] 4/12 verifications done
&nbsp LBM
2.6.31-18-20 (proposed)[11] 0/ 2 verifications done

Security still getting finalized. We are including all the topic branches into the update this time. So this adds to the effort. Karmic-proposed needs to be updated before uploading as there has been one regression detected in the 2.6.31.9 update.

Incoming Bugs: Regressions

Current regression stats (broken down by release):

regression-potential (up 14)

regression-update (no change)

regression-release (no change)

regression-proposed (no change)

Incoming Bugs: Bug day report

Just a gentle reminder if you have a few spare cycles today:

Open Discussion or Questions

The entire kernel team extends a warm welcome to Chase Douglas our new Hardware Enablement Engineer.

Brad Figg

Kernel Team Meeting Minutes

Meeting Minutes

IRC Log of the meeting.

Agenda

2010-19-01 Meeting Agenda

Outstanding actions from last meeting

  1. amitk to meet with keybuk on automated boot tests.
    Noting to add, continuing this to the next meeting.

Lucid Release Status: Bugs

Release Meeting Bugs (1 bug, 3 blueprints)
Alpha 3 Milestoned Bugs (29 bugs)

Release Targeted Bugs (97 bugs)

Lucid Release Status: Milestoned Features

Milestoned Features

Lucid Release Status: Bugs with patches attached

In collaboration with the community team, it was thought that bugs with patches attached would be a good target for issues which we could likely fix quickly and therefore close. It was requested we add this info to our weekly

Blueprints: kernel-lucid-bug-handling

Going to work on completing some of ogasawara’s work items this week. For ex detect staging drivers. We will also be getting our arsenal scripts into shape and running more regularly.

Blueprints: kernel-lucid-review-of-ubuntu-delta

Nothing new to report.

Blueprints: kerne-lucid-kernel-config-review

We are going to review whether we should have all sub-systems builtin rather than as modules now that module probing is faster. As a specific example we have just pulled out bluetooth as it will shortly be included in compat-

Blueprints: kernel-lucid-kms

Lots of work on i915 leading to us switching i915.powersave=0 by default as we are seeing nasty twitching and blanking issues, as well as some suspend hangs.

Blueprints: kernel-lucid-suspend-resume

Nothing new to report there

Blueprints: kernel-lucid-apparmor-development

Upstream AppArmor update incoming today, just cleaning up some commit messages. The kernel side of policy optimizations is done, should have user side dfa minimization in by the end of the week. If there is time the table pa

Fixed regression Bug #507069

Debugging dfa optimization. dfa optimization isn’t tweeked yet but is giving about 40% size savings and 50% speedup.

Blueprints: kernel-lucid-boot-performance

We have regressed some since we gained plymouth in the initramfs. Not sure if that is its final resting place yet, need to confirm with keybuk as to plan going forward

Other Release Tasks: Lucid Audio Support

Nothing new to report here.

Other Release Tasks: Lucid Better Power Mgt

Nothing new to report here.

Other Release Tasks: EC2 Lucid Kernel Status

jjohansen is finishing an update to EC2 toadya and will include the missing patches directory.

Status: Lucid

Be aware a bunch of work items have appeared out of the woodwork. It seems that we were losing some foreign items in the burndown charts. I will be reviewing those once the new charts are up and running correctly and will tr

Security & Bugfix Kernels

Dapper 2.6.15-55.81 (security)
Hardy 2.6.24-26.64 (security)
  LBM
2.6.24-26.35 (proposed)[40] 0/ 1 verifications done
  LUM
2.6.24-26.44 (proposed)[40] 0/ 1 verifications done
Intrepid 2.6.27-16.44 (security)
Jaunty 2.6.28-17.58 (security)
Karmic 2.6.31-18.55 (proposed)[11] 4/12 verifications done
  LBM
2.6.31-18-20 (proposed)[11] 0/ 2 verifications done

There is work going on for a security update on the kernel and on updating the Karmic kernel to 2.6.31.12(final). We are now also get close to the cutoff date for Karmic SRU patches to the kernel. If there are upstream patche

Incoming Bugs: Regressions

Current regression stats (broken down by release):

regression-potential (up 5)

regression-update (up 2)

regression-release (up 2)

regression-proposed (no change)

Incoming Bugs: Bug day report

Just a gentle reminder if you have a few spare cycles today:

Open Discussion or Questions

The entire kernel team extends a warm welcome to Jeremy Foshee (JFo) our new Kernel Bug Triager.

Leann Ogasawara

Kernel Bug Day – Tues 19 Jan, 2010

This is a friendly reminder that we’re starting up Kernel Bug Day’s for the new year.   Don’t know what a Kernel Bug Day is [1], this is the perfect opportunity to find out what it’s all about.

The next Kernel Bug Day will be held Tues. 19 Jan, 2010 [2]. We’ll be focusing on bugs with a closed upstream bug watch. These would be good targets in Launchpad to overlook and possibly close as well. Please join us Tuesday in the #ubuntu-kernel IRC channel on FreeNode as we tackle this list of bugs together.

Thanks!

[1] https://wiki.ubuntu.com/KernelTeam/BugDay

[2] https://wiki.ubuntu.com/KernelTeam/BugDay/20100119

nospam@nospam.com

Our Ubuntu kernel sprint in London has been going very well. Our focus this week has been sharing information with each other about how we do our work, to spread around some critical knowledge. This morning we walked to work in a snowfall.