2012-06-12

Meeting Minutes

IRC Log of the meeting.
Meeting minutes.

Agenda

20120612 Meeting Agenda

ARM Status

  • Q/omap4: no new code was committed since last week, kept working on the configuration (delta reduction against master).

Release Metrics and Incoming Bugs

Milestone Targeted Work Items

  • apw

    hardware-q-kernel-config-review

    4 work item

    hardware-q-kernel-delta-review

    3 work items

    hardware-q-kernel-versions-and-flavors

    1 work item

    cking

    hardware-q-kernel-delta-review

    2 work items

    cooloney

    hardware-q-kernel-config-review

    1 work item

    jjohansen

    hardware-q-kernel-config-review

    1 work item

    jk-

    hardware-q-kernel-config-review

    2 work items

    ogasawara

    hardware-q-kernel-config-review

    2 work items

    cyphermox

    hardware-q-kernel-delta-review

    1 work item

    ppisati

    hardware-q-kernel-config-review

    1 work item

    sforshee

    hardware-q-kernel-delta-review

    1 work item

    smb

    hardware-q-kernel-delta-review

    1 work item

    hardware-q-kernel-versions-and-flavors

    1 work item

    tgardner

    hardware-q-kernel-config-review

    2 work items

    hardware-q-kernel-delta-review

    2 work items

    tlei

    hardware-q-kernel-delta-review

    2 work items

    kernel-team

    hardware-q-kernel-config-review

    3 work items

    hardware-q-kernel-versions-and-flavors

    2 work items

    If your name is in the above table, please review your Alpha-2 work items.

Status: Quantal Development Kernel

  • We have recently rebased the Quantal kernel to the latest v3.5-rc2 upstream kernel. I'd like to see a little more smoke testing before uploading. We've also began providing the 12.10 kernel for 12.04. We welcome any early adopters to please install, test, and let us know your feedback. It is available from the following PPA:

    https://launchpad.net/~ubuntu-x-swat/+archive/q-lts-backport Important upcoming dates:

    • Thurs Jun 28 - Alpha 2 (~2 weeks)

Status: Stable, Security, and Bugfix Kernel Updates - Precise/Oneiric/Natty/Lucid/Hardy

Status: CVE's

Open Discussion or Questions? Raise your hand to be recognized

  • kamal:

    I've recently been working with the upstream Bufferbloat group: http://www.bufferbloat.net ... They have implemented new network scheduler algorithms designed to address the performance drag induced by large unmanaged network buffers. The new stuff ("fq_codel" and "codel") just landed in linux 3.5. A good article about the bufferbloat problem and the new scheduling algo's is here: http://queue.acm.org/detail.cfm?id=2209336 The result is *very* impressive: I see a 30X reduction in ping latency on a fully saturated 10Mbps network, just by switching on the new fq_codel scheduler. For an interactive ssh session over that same saturated 10Mbps network, fq_codel totally eliminates the laggy keyboard response -- it feels like there's no other network traffic at all! I have produced a Bufferbloat PPA to allow us to experiment with this stuff now in Precise and Quantal: https://launchpad.net/~kamalmostafa/+archive/bufferbloat The PPA includes a "quantal-3.4-plus-bufferbloat" kernel for precise and quantal. (The new schedulers won't work on pre-3.3 kernels). The PPA page links to a quick how-to-smoke-test-it guide and more info. The Bufferbloat group is eager for testing and feedback and general eyeball time from the Ubuntu kernel team and the Ubuntu community. Their channel is #bufferbloat on freenode. Please give my PPA a whirl, and get a taste of the new cutting-edge network goodness. Any questions about it -- I'll at least know who to direct you to, so feel free to ask me.
    BenC: I had this on the meeting agenda, but don't see it above. Trying to get some feedback for the patches I sent to kernel-team@, hoping to get it merged for next kernel upload Re: PowerPC e500mc BenC, i think that are being reviewed at the moment arn't they ?

    If so, I'm unaware Smile :) Also, if there are any suggestions on changes to my workflow for getting powerpc stuff merged, let me know we are looking at them and seeing if they scare us or not bjf: The only scary one(s) are the mdio phy changes, but I have tested them extensively on non-ppc BenC: just got back after 5 days off. they are on my todo list. Everything else is either nop or segmented on non-ppc tgardner: thanks a lot of the patches are sauce, are those also heading upstream ? All of them have been pushed upstream 2 have been accepted BenC: I should have some comments by tomorrow. got a huge pile of email to deal with... Oh wait, not the SAUCE, not yet freescale had 360+ patches last year, so they've done a lot to get this merged upstream These are the last few, and are being dealt with in the coming months tgardner: ok, please email, ping me if any questions come up… will do Anything else for open discussion? Thanks everyone

KernelTeam/Meeting/2012-06-12 (last edited 2012-06-12 17:22:22 by jsalisbury)