Archive for March, 2010

Brad Figg

Kernel Team Meeting Minutes

Meeting Minutes

IRC Log of the meeting.

Agenda

2010-23-03 Meeting Agenda

Outstanding actions from last meeting

  1. JFo to send out regression bug day announcements on monday
    Carried forward to next week.
  2. JFo to do a wiki page on regression bug days
    In progress, carried forward to next week.

Lucid Release Status: Bugs

Beta 1 Milestoned Bugs Release Targeted Bugs
linux 13 30
linux-fsl-imx51 0 0
linux-ec2 1 1
linux-mvl-dove 1 2

Blueprints: kernel-lucid-bug-handling

Nothing new to report.

Blueprints: kerne-lucid-kernel-config-review

Nothing new to report.

Blueprints: kernel-lucid-kms

Testing of the beta has been mostly good so far, there are a couple of “blank screen on install” bugs to look at.

Blueprints: kernel-lucid-suspend-resume

Nothing new to report.

Blueprints: kernel-lucid-apparmor-development

Another lkml push going out today, will also issue pull requests for the bug fixes it includes.
Since beta 1 release have picked up another couple bugs to look at with security team
Bug #544819, Bug #544789, Bug #544764 as well as #529288 which I haven’t been able to
reproduce and currently looks as if it is caused by memory corruption.

  • apparmor “apparmor does not work with midori” [Undecided,New] https://launchpad.net/bugs/544819
  • apparmor “apparmor-logprof not working” [Undecided,New] https://launchpad.net/bugs/544789
  • apparmor “unkillable apparmor_parser” [Undecided,New] https://launchpad.net/bugs/544764
  • linux “”Kernel Oops” – unable to handle kernel paging request at ffff880323279bf2 RIP is at aa_dfa_match_len+0xd9/0xf0″ [Low,Incomplete] https://launchpad.net/bugs/529288

Blueprints: kernel-lucid-boot-performance

Nothing new to report.

Other Release Tasks: Lucid Audio Support

Still working on the bug survey. I’ve moved to working on modifications to arsenal
scripts to do more of the work. I’ve done a bit of refactoring of Bryce’s process-new-bugs.py
script and sent it to him. I’ll take his feedback and appy the changes to our scripts
as well. I’m trying to make it so we don’t fork the scripts quite so much.

Other Release Tasks: Lucid Better Power Mgt

Sent some patches upstream to pm-utils and am waiting on feedback. Will push out a new set of packages when I hear back.

Other Release Tasks: EC2 Lucid Kernel Status

Testing fix for Bug #527208, which also seems to fix Bug #540378

  • linux-ec2 “ec2 instance fails boot, no console output on c1.xlarge” [High,Confirmed] https://launchpad.net/bugs/527208
  • linux-ec2 “BUG: soft lockup – CPU#1 stuck for 66s! [swapper:0]” [Medium,New] https://launchpad.net/bugs/540378

Other than those its looking good.

Status: Lucid

Ok, apw uploaded a kernel including 2.6.32.10 and a newer igb driver. Uploaded meta today so it will probably get offered soonish.
Will gather updates till Friday and then do another upload.

Security & Bugfix Kernels

Dapper 2.6.15-55.83 (security)
Hardy 2.6.24-27.68 (security) *
Intrepid 2.6.27-17.46 (security)
Jaunty 2.6.28-18.60 (security)
Karmic 2.6.31-19.58 (security) *
 
LBM 2.6.31-20.22 (updates) *
mvl-dove 2.6.31-211.26 (security) *
fsl-imx51 2.6.31-108.25 (security) *
ec2 2.6.31-304.13 (security) *

Packages marked with ‘*’ have been uploaded to proposed. Planned acceptance into proposed is tomorrow.

Incoming Bugs: Regressions

Current regression stats (broken down by release):

regression-potential (up 40)

  • 128 lucid bugs

regression-update (up 1)

  • 12 karmic bugs
  • 5 jaunty bugs
  • 2 intrepid bugs
  • 1 hardy bug

regression-release (down 1)

  • 53 karmic bugs
  • 22 jaunty bugs
  • 11 intrepid bugs
  • 4 hardy bugs

regression-proposed (no change)

  • 1 karmic bug

Incoming Bugs: Bug day report

Open Discussion or Questions

  1. A warm welcome from all to Kamal Mostafa, the latest kernel team member.
Brad Figg

Kernel Team Meeting Minutes

Meeting Minutes

IRC Log of the meeting.

Agenda

2010-09-03 Meeting Agenda

Outstanding actions from last meeting

  1. None

Lucid Release Status: Bugs

Beta 1 Milestoned Bugs Release Targeted Bugs
linux 1 28
linux-fsl-imx51 2 2
linux-ec2 0 1
linux-mvl-dove 1 2

Blueprints: kernel-lucid-bug-handling

Almost done with the analysis of the X debugging pages. JFo will update the team on the current state of the Kernel Team pages and an initial draft of recommended changes to the structure and layout via the e-mail list. Will have the arsenal scripts running (not in dry run mode) by the end of this week.

  • I’m almost ready to present my findings on the X wiki debug pages and how I’d like to restructure the Kernel Team pages. I hope to send something on this to the list this week

  • I am reworking the way the arsenal scripts gather and process bugs so that I can extend the ‘reach’ of the script deeper into the backlog. I’ll probably do a rather intense round of bug processing during the lull after release freeze.

  • I sent out an e-mail to the c-k-t list (meant to send to the k-t list) regarding a wiki page describing the rationale for automated bug processing. Please provide some feedback. I’d like to get this URL integrated into the arsenal scripts soon.

Blueprints: kerne-lucid-kernel-config-review

Discussion thread started on the remaining sub-systems and PATA/SATA driver status. Should have patches for immediatly after Beta-1.

Blueprints: kernel-lucid-kms

We are seeing a lot of issues with i945 and older graphics cards, which includes all the atom netbooks. This is looking to be new occurance of the i915.powersave problems, we will disable powersaving for these ‘older’ cards by default.

Blueprints: kernel-lucid-suspend-resume

Looks like we are getting some useful information as a result of the patch to measure suspend resume times. I am currently looking at the suspend/resume bugs filed recently and trying to get a sense of any common elements we can find.

Blueprints: kernel-lucid-apparmor-development

The latest upstream push is ready go out.

Blueprints: kernel-lucid-boot-performance

The ureadahead patches are with Foundations for testing. Again we should have results in time for the first upload after Beta-1.

Other Release Tasks: Lucid Audio Support

Nothing significantly new this week.

I’m several days into my als-driver bug survey and have looked at almost 200 bugs. I’m basicly going through them one by one and adding tags onto them. If they have not had any action for more than a couple months I’m requesting a test of a dev image and the mainline kernel. I’m pretty amazed at the number of bugs that have not seen any attention since their initial submission.

The biggest buckets are “no sound at all” and “internal mic not working”. There are a few that look like upgrade isses, people running out and buying the latest HW expecting it to “just work”, etc.

I also see that there are a bunch of bugs that are “past expiration”. I asked around about this and was told that the bot that ran around marking these “invalid” had to be turned off because it wasn’t smart enought and was invalidating bugs it shouldn’t. I was told that a new status is being created “Expired” specifically for these bugs and that the bot would be smartened up. This work is supposed to happen this month.

Other Release Tasks: Lucid Better Power Mgt

The release team has pretty much veto’d putting the pmutils functionality in as it didn’t hit b-1. The rest has been postponed due to workload.

Other Release Tasks: EC2 Lucid Kernel Status

Working on Launchpad bug 527208 in linux-ec2 “ec2 instance fails boot, no console output on c1.xlarge” [High,Confirmed] https://launchpad.net/bugs/527208

Have confirmed that it isn’t exhibiting under similar circumstances in rackspace cloud. I haven’t made anymore progress on testing pv-ops.

Status: Lucid

Lucid remains at stable v2.6.32.9, though v2.6.32.10 is now available and will be applied once Beta-1 is over. We have commited patches to expose the DRM backports version such that when v2.6.33.1 DRM patches we can tell that that has occured in bug reports. We have also changed the default settings for the CDROM trays to allow direct removal of disks, userspace will handle this shortly.

All of the main kernels (linux, linux-fsl-imx51, linux-mvl-dove, linux-qcm-msm, and linux-ec2) remain unchanged from last week. linux-ti-omap was just accepted into the archive. Anything which requires a kernel change will have to wait until after beta-1 and will have to pass the abbreviated SRU process (2 acks required).

Security & Bugfix Kernels

Dapper 2.6.15-55.82 (security)
Hardy 2.6.24-27.65 (security)
 
  2.6.24-27.67 (updates)
Intrepid 2.6.27-17.45 (security)
Jaunty 2.6.28-18.59 (security)
Karmic 2.6.31-19.57 (security)
 
LBM 2.6.31-20.22 (updates)
mvl-dove 2.6.31-211.22 (security)
fsl-imx51 2.6.31-108.21 (security)
  2.6.31-108.23 (proposed)[12] 0/ 1 verifications done (+0)
ec2 2.6.31-304.11 (updates)

Security update is expected somewhen today (after some final tests)

Incoming Bugs: Regressions

Current regression stats (broken down by release):

regression-potential (up 30)

  • 88 lucid bugs

regression-update (no change)

  • 11 karmic bugs
  • 5 jaunty bugs
  • 2 intrepid bugs
  • 1 hardy bug

regression-release (no change)

  • 54 karmic bugs
  • 22 jaunty bugs
  • 11 intrepid bugs
  • 4 hardy bugs

regression-proposed (no change)

  • 1 karmic bug

Incoming Bugs: Bug day report

Today is another Kernel Team ‘regression-’ bug day. Thanks for working on these last week. I’ll be looking at the schedule for the rest of this release and proposing more bug days to work out regressions to Pete for inclusion in the schedule. I anticipate that, as we move closer to the release freeze, we will probably do more than one bug day a week, but I want to see what the timeframe looks like before I propose that.

I didn’t get to schedule a community bug day today as I had planned. I will get things ready to hold another bug day against bugs with patches attached for next week.

Open Discussion or Questions

  1. Nothing new this week.
Brad Figg

Kernel Team Meeting Minutes

Meeting Minutes

IRC Log of the meeting.

Agenda

2010-09-03 Meeting Agenda

Outstanding actions from last meeting

  1. None

Lucid Release Status: Bugs

Beta 1 Milestoned Bugs Release Targeted Bugs
linux 9 24
linux-fsl-imx51 1 1
linux-ec2 1 1
linux-mvl-dove 1 2

Blueprints: kernel-lucid-bug-handling

Almost done with the analysis of the X debugging pages. JFo will update the team on the current state of the Kernel Team pages and an initial draft of recommended changes to the structure and layout via the e-mail list. Will have the arsenal scripts running (not in dry run mode) by the end of this week.

Blueprints: kerne-lucid-kernel-config-review

We have pulled out the HID devices to modular. Discussions on other drivers still pending, any changes will have to occur post beta-1 now.

Blueprints: kernel-lucid-kms

We have committed to the v2.6.33 drm backport which is now uploaded to the archive. Re-testing of graphics issues now to be requested. JFo will put out a call for testing for the drm backport asap.

Blueprints: kernel-lucid-suspend-resume

The suspend resume patch is in and already seeing some benefits. One bug where the battery is fingered as taking 10s to respond.

Blueprints: kernel-lucid-apparmor-development

Editing text for another push to LKML There are still a few LSM audit issues to attend to and we will see how the __d_path discussions play out. Currently trying to keep the 2 pushes separate

Blueprints: kernel-lucid-boot-performance

Nothing new to report.

Other Release Tasks: Lucid Audio Support

Nothing new to report.

Other Release Tasks: Lucid Better Power Mgt

Pushed some power policy scripts to https://code.edge.launchpad.net/~amitk/ubuntu/lucid/pm-utils-powersave-policy/amit. Will prepare a package in PPA and issue call for testing tomorrow. pitti is going to review them in the mean while, but other comments welcome

Other Release Tasks: EC2 Lucid Kernel Status

Bug #527208 is still outstanding

  • Launchpad bug 527208 in linux-ec2 “ec2 instance fails boot, no console output on c1.xlarge” [High,Confirmed] https://launchpad.net/bugs/527208

Other than that no known issues. However it may be affecting more than just c1.xlarge kernels.

Status: Lucid

Lucid remains at stable v2.6.32.9. As mentioned above we have taken the v2.6.33 DRM backport as this greatly improves stability and removes the need for the Nouveau LBM module, cleaning up installs. We have also incorporated building the kernel perf tool. All of the main kernel (linux, linux-fsl-imx51, linux-mvl-dove, and linux-qcm-msm) are now closed for the Beta-1, uploaded and building, linux-ec2 has been tested and pending a build-test is ready to upload. Anything which requires a kernel change will have to wait until after beta-1 and will have to pass the abbreviated SRU process (2 acks required).

Security & Bugfix Kernels

Dapper 2.6.15-55.82 (security)
Hardy 2.6.24-27.65 (security)
 
  2.6.24-27.67 (proposed)[15] 1/3 verifications done (+0)
Intrepid 2.6.27-17.45 (security)
Jaunty 2.6.28-18.59 (security)
Karmic 2.6.31-19.56 (security)
 
LBM 2.6.31-20.22 (updates)
mvl-dove 2.6.31-211.22 (security)
  2.6.31-211.23 (waiting for acceptance)
fsl-imx51 2.6.31-108.21 (security)
  2.6.31-108.23 (proposed)[5] 0/ 1 verifications done (+0)
ec2 2.6.31-304.11 (updates)

Hardy is just about to move to updates.

Coming up another security update, then final big upload for Karmic.

Incoming Bugs: Regressions

Current regression stats (broken down by release):

regression-potential (up 30)

  • 86 lucid bugs

regression-update (no change)

  • 11 karmic bugs
  • 5 jaunty bugs
  • 2 intrepid bugs
  • 1 hardy bug

regression-release (no change)

  • 56 karmic bugs
  • 22 jaunty bugs
  • 11 intrepid bugs
  • 4 hardy bugs

regression-proposed (no change)

  • 1 karmic bug

Incoming Bugs: Bug day report

There was no bug day last week. This is a gentle reminder that we have decided to hold a weekly Kernel Bug Day to deal with regression bugs. What this means is that for one day a week we would like for the kernel team to focus on addressing ‘regression-’ tagged bugs. We’d like to see a significant reduction in the numbers reported above.

https://bugs.edge.launchpad.net/ubuntu/+source/linux/+bugs?field.tag=regression-potential+regression-release+regression-proposed+regression-updates&field.tags_combinator=ANY

The plan, as I see it, is to implement this up to release and then discuss the continued utility of having a Kernel Team Bug Day much like the Bug Days we have now with the community.

The next Bug Day will be next Tuesday. The focus will be on Bugs with patches attached. As usual, all are welcome to help, and all help is greatly appreciated.

The Kernel Bug Day will be on Tuesday of every week until release.

Open Discussion or Questions

  1. We are now basically frozen for Beta-1 (barring kitten killers), I will be pushing out any tasks which required kernel changes to Beta-2 shortly, there is almost nothing in this category. The remainder of our non-release tasks for Beta-1 need focus, and if they aren’t going to make it I want to know.
  2. Two links that you may find useful:
Brad Figg

Kernel Team Meeting Minutes

Meeting Minutes

IRC Log of the meeting.

Agenda

2010-16-02 Meeting Agenda

Outstanding actions from last meeting

  1. None

Lucid Release Status: Bugs

Beta 1 Milestoned Bugs Release Targeted Bugs
linux 8 18
linux-fsl-imx51 1 1
linux-ec2 1 1
linux-mvl-dove 0 0

Blueprints: kernel-lucid-bug-handling

No update, all items are still in progress.

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

Lenovo driver confirmed no longer required and dropped. This blueprint is essentially complete and this item wll be removed from the meeting agenda.

Blueprints: kerne-lucid-kernel-config-review

It seems we require SECCOMP enabled for Lucid, preliminary patches for ARM are under testing.

Blueprints: kernel-lucid-kms

The v2.6.33 DRM backport is looking very much the better starting point in most testing. There are still issues to resolve but they are much much less severe. The final go/no-go decision is expected in the next couple of days with the change occuring this week. We have been attempting to test the main Lucid kernel and also the Lucid kernel with the .33 drm backport, but have encountered problems with suspend/resume that appear to be related to the Iron Lake processor but not the drm drivers. We are continuing to try to sort out these problems.

Blueprints: kernel-lucid-suspend-resume

Nothing new to report.

Blueprints: kernel-lucid-apparmor-development

Another submission going out today, wanted to sleep on d_path and d_namespace changes. Also pam_apparmor will be finished up today. Upstream is generally receptive to the new patches, the d_path stuff is getting the most conversation.

Blueprints: kernel-lucid-boot-performance

We remain around the 1.6s to rootfs mark. There is some instability in the figure which looks to be a race during boot, needs further investigation. Patches for incremental readahead detection are now in testing.

Other Release Tasks: Lucid Audio Support

Nothing new to report.

Other Release Tasks: Lucid Better Power Mgt

Nothing new to report.

Other Release Tasks: EC2 Lucid Kernel Status

Nothing new to report.

Status: Lucid

Lucid is at stable v2.6.32.9. We have taken a few small update icluding a wacom driver update. As mentioned above we are still looking to update graphics with that likely to be the outcome. Progress has been pretty solid the last week, but new tasks and bugs pulling us back from the trend-line. There is a fair bit to do before kernel freeze but the new bits should be in in time. We will have to do some fixing after that. We have closed off one of the slipped items, the rest remain and need pushing. If you have an at-risk item, i would like to know when its likely to be done.

Security & Bugfix Kernels

Dapper 2.6.15-55.82 (security)
Hardy 2.6.24-27.65 (security)
 
  2.6.24-27.67 (proposed)[8] 1/3 verifications done (+1)
Intrepid 2.6.27-17.45 (security)
Jaunty 2.6.28-18.59 (security)
Karmic 2.6.31-19.56 (security)
 
  2.6.31-20.57 (proposed)[22] 8/19 verifications done (+3)
LBM 2.6.31-20.22 (proposed)[22] 0/ 2 verifications done (+0)
mvl-dove 2.6.31-211.22 (security)
  2.6.31-211.23 (waiting for acceptance)
fsl-imx51 2.6.31-108.21 (security)
  2.6.31-108.22 (proposed)[13] 0/ 1 verifications done (+0)
ec2 2.6.31-304.10 (security)
  2.6.31-304.11 (proposed)[13] 0/ 1 verifications done (+0)
  • For Karmic: the following bugs are unverified:
    • bug 504273, bug 494045, bug 494461 and bug 510722 (intel graphics)
    • bug 458503 and bug 458503 (hotkeys)
    • bug 506180 (ath5k regression by stable)
  • For now there were some doubts on bug 452558 as of whether 96MB of memory stolen is a high ratio of overall memory on ARM. Probably someone with knowledge has to say there is still enough left.

Incoming Bugs: Regressions

Current regression stats (broken down by release):

regression-potential (up 30)

  • 57 lucid bugs

regression-update (no change)

  • 10 karmic bugs
  • 5 jaunty bugs
  • 2 intrepid bugs
  • 1 hardy bug

regression-release (no change)

  • 57 karmic bugs
  • 23 jaunty bugs
  • 11 intrepid bugs
  • 4 hardy bugs

regression-proposed (no change)

  • 1 karmic bug

Incoming Bugs: Bug day report

No bug day last week. This week’s bug day has been postponed to next week. The focus will be on bugs with patches.

Open Discussion or Questions

Just a reminder we’re heading into the last week for lucid before freeze. Anything you think you want in needs to be on my (apw’s) radar before Friday.