Very encouraging Leif. My impatience is more at rest now. On Mon, May 31, 2010 at 7:39 PM, Leif Walsh <[email protected]> wrote:
> Dear all who think this bug is taking too long: > > You're right. It's been outstanding for quite some time now, and > really should have been fixed before release, or else the 2.6.32 > kernel shouldn't have been accepted. > > As it is, the bug is not fixed. The best people for the job are the > linux kernel devs, not ubuntu employees/contributors. They have a > patch and are in the process of reviewing it. Believe me when I tell > you that you want them to finish reviewing it. > > Once it's accepted, it'll be pushed in the next 2.6.32 maintenance > release. I expect to see this in .15, if it's not already in .14 > (which got pushed a last week and since I haven't been following this > patch, I don't know if it's in there). If it goes in .15, it'll be > another few weeks to couple of months. Once that happens, the ubuntu > people can package it up and release it as a maintenance update. > > Depending on the climate, you may also see this patch in a newer, > backported kernel (2.6.33 and above), so if you enable backports you > might see it sooner. > > Either way, there's nothing you can do except either wait for a newer > kernel or downgrade to an older kernel (2.6.31 is a good choice, as > evidenced by some people above). > > Another way to soften the blow of this bug is simply to give the load > balancer less to do. I've noticed that, while it certainly causes far > more wakeups than it should, the wakeups *scale with the load* of the > computer. Therefore, if you do all the things you normally do to > reduce wakeups, the load balancer will be less of an issue as well. > > Whatever you choose to do (I'm just sticking with the kernel and > living with the bug...it's not so bad with my usage pattern), be > patient. You'll get the fix soon enough, and soon after that you'll > forget it was ever a problem. > > <wink>If that's not enough for you, go install slackware.</wink> > > -- > Tens of wakes per second in "[kernel scheduler] Load balancing tick" on > Core 2 Duo even with only 1 core enabled > https://bugs.launchpad.net/bugs/524281 > You received this bug notification because you are a direct subscriber > of the bug. > > Status in “linux” package in Ubuntu: Confirmed > Status in “linux-2.6” package in Debian: Incomplete > > Bug description: > powertop reports above 70 wakes per second in "[kernel scheduler] Load > balancing tick" task, and above 200 when there's any little load, running on > a Core 2 Duo processor (T6500) with a single core enabled (multicore > disabled in BIOS). > Will still try noapic, nolapic, maxcpus and nosmp in the boot parameters > and reproduce it with the mainline kernel. > > ProblemType: Bug > AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. > Architecture: i386 > ArecordDevices: > **** List of CAPTURE Hardware Devices **** > card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/controlC0: etrusco 1606 F.... pulseaudio > etrusco 15151 F.... foobar2000.exe > CRDA: Error: [Errno 2] No such file or directory > Card0.Amixer.info: > Card hw:0 'Intel'/'HDA Intel at 0xfddf8000 irq 22' > Mixer name : 'Realtek ALC269' > Components : 'HDA:10ec0269,1b0a4009,00100004 > HDA:11c11040,1b0a4007,00100200' > Controls : 19 > Simple ctrls : 11 > Card1.Amixer.info: > Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfebec000 irq 17' > Mixer name : 'ATI R6xx HDMI' > Components : 'HDA:1002aa01,00aa0100,00100100' > Controls : 4 > Simple ctrls : 1 > Card1.Amixer.values: > Simple mixer control 'IEC958',0 > Capabilities: pswitch pswitch-joined penum > Playback channels: Mono > Mono: Playback [on] > Date: Fri Feb 19 05:25:42 2010 > DistroRelease: Ubuntu 10.04 > EcryptfsInUse: Yes > MachineType: Philco PHN10XXX. > Package: linux-image-2.6.32-13-generic 2.6.32-13.18 > ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-13-generic > root=UUID=d482e94f-9370-4ad2-9536-986541003db5 ro acpi.power_nocheck=1 > acpi_osi=linux radeon.blacklist=yes > ProcEnviron: > LANG=en_US.UTF-8 > SHELL=/bin/bash > ProcVersionSignature: Ubuntu 2.6.32-13.18-generic > Regression: No > RelatedPackageVersions: linux-firmware 1.29 > Reproducible: Yes > RfKill: > 0: phy0: Wireless LAN > Soft blocked: no > Hard blocked: no > SourcePackage: linux > TestedUpstream: No > Uname: Linux 2.6.32-13-generic i686 > dmi.bios.date: 06/01/2009 > dmi.bios.vendor: American Megatrends Inc. > dmi.bios.version: 1.01 > dmi.board.asset.tag: To Be Filled By O.E.M. > dmi.board.vendor: PEGATRON CORP. > dmi.board.version: To be filled by O.E.M. > dmi.chassis.asset.tag: To Be Filled By O.E.M. > dmi.chassis.type: 10 > dmi.chassis.vendor: PEGATRON CORP. > dmi.chassis.version: To Be Filled By O.E.M. > dmi.modalias: > dmi:bvnAmericanMegatrendsInc.:bvr1.01:bd06/01/2009:svnPhilco:pnPHN10XXX.:pvr1.01:rvnPEGATRONCORP.:rn:rvrTobefilledbyO.E.M.:cvnPEGATRONCORP.:ct10:cvrToBeFilledByO.E.M.: > dmi.product.name: PHN10XXX. > dmi.product.version: 1.01 > dmi.sys.vendor: Philco > > > > To unsubscribe from this bug, go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/524281/+subscribe > -- Tens of wakes per second in "[kernel scheduler] Load balancing tick" on Core 2 Duo even with only 1 core enabled https://bugs.launchpad.net/bugs/524281 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
