kernel-packages team mailing list archive

[Marcos Alano <1188647@xxxxxxxxxxxxxxxxxx>]

I think we need to know if intel_pstate is more stable in 4.x series,
because the new releases. If it keeps unstable may be disable by
default is the better choice.

2015-08-27 14:33 GMT-03:00 Colin Ian King <1188647@xxxxxxxxxxxxxxxxxx>:
> Enabling intel-pstate on the 3.13 kernel was deemed problematic for
> several reasons. However, I have backported all of the changes upto
> 4.2-rc8 to 3.13 and re-enabled the intel-pstate driver for testing. I
> have performed a boot smoke test with this kernel and I think it needs
> some deeper testing to see if it resolves your issues.
>
> The kernel packages can be found in:
>
> http://kernel.ubuntu.com/~cking/intel-pstate
>
> Please can you see if these help.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1188647
>
> Title:
>   Please change intel_pstate default to disable
>
> Status in linux package in Ubuntu:
>   Fix Released
>
> Bug description:
>   3.9 introduced a new default governor on SandyBridge CPUs called
>   INTEL_PSTATE which, when built in and enabled (the default), removes
>   all other governors (like our usual default, ondemand). 3.10 extended
>   this to Ivybridge generation CPUs.
>
>   In theory, this isn't an awful thing, as the new Intel pstate governor
>   should be higher performance and give better power savings.  In
>   theory.
>
>   In practice, it drives my CPUs to max frequency nearly constantly,
>   spins my fans like mad and, somehow, does all of this while also
>   eating enough CPU time in kernel threads to make my machine choppy,
>   unresponsive, and unable to do simple things like play videos when I
>   get off work.
>
>   Therefore, I propose that we, for now, toggle intel_pstate to disable
>   by default (I am using intel_pstate=disable on my command line right
>   now, with great success), so it's still built in, and people can play
>   with it, but it's off by default.
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 13.10
>   Package: linux-image-3.9.0-4-generic 3.9.0-4.9
>   ProcVersionSignature: Ubuntu 3.9.0-4.9-generic 3.9.4
>   Uname: Linux 3.9.0-4-generic x86_64
>   ApportVersion: 2.10.2-0ubuntu1
>   Architecture: amd64
>   AudioDevicesInUse:
>    USER        PID ACCESS COMMAND
>    /dev/snd/controlC0:  adconrad   2574 F.... pulseaudio
>   CurrentDmesg:
>    [   30.633035] init: plymouth-stop pre-start process (2079) terminated with status 1
>    [   36.086916] br0: port 1(eth0) entered forwarding state
>   Date: Fri Jun  7 08:48:56 2013
>   HibernationDevice: RESUME=UUID=73040efa-baec-458a-8307-3bca07b26c3c
>   InstallationDate: Installed on 2012-12-09 (179 days ago)
>   InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20121209)
>   MachineType: LENOVO 4173LPB
>   MarkForUpload: True
>   ProcFB: 0 inteldrmfb
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.9.0-4-generic root=UUID=2222aad5-ef31-4428-973f-71740fc7cb6a ro intel_pstate=disable quiet splash vt.handoff=7
>   RelatedPackageVersions:
>    linux-restricted-modules-3.9.0-4-generic N/A
>    linux-backports-modules-3.9.0-4-generic  N/A
>    linux-firmware                           1.109
>   SourcePackage: linux
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   dmi.bios.date: 09/13/2012
>   dmi.bios.vendor: LENOVO
>   dmi.bios.version: 8CET55WW (1.35 )
>   dmi.board.asset.tag: Not Available
>   dmi.board.name: 4173LPB
>   dmi.board.vendor: LENOVO
>   dmi.board.version: Not Available
>   dmi.chassis.asset.tag: No Asset Information
>   dmi.chassis.type: 10
>   dmi.chassis.vendor: LENOVO
>   dmi.chassis.version: Not Available
>   dmi.modalias: dmi:bvnLENOVO:bvr8CET55WW(1.35):bd09/13/2012:svnLENOVO:pn4173LPB:pvrThinkPadT420s:rvnLENOVO:rn4173LPB:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
>   dmi.product.name: 4173LPB
>   dmi.product.version: ThinkPad T420s
>   dmi.sys.vendor: LENOVO
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1188647/+subscriptions


-- 
Marcos Alano
----------------------------------------------
P: Por que este email é tão curto?
R: http://five.sentenc.es
----------------------------------------------

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1188647

Title:
  Please change intel_pstate default to disable

Status in linux package in Ubuntu:
  Fix Released

Bug description:
  3.9 introduced a new default governor on SandyBridge CPUs called
  INTEL_PSTATE which, when built in and enabled (the default), removes
  all other governors (like our usual default, ondemand). 3.10 extended
  this to Ivybridge generation CPUs.

  In theory, this isn't an awful thing, as the new Intel pstate governor
  should be higher performance and give better power savings.  In
  theory.

  In practice, it drives my CPUs to max frequency nearly constantly,
  spins my fans like mad and, somehow, does all of this while also
  eating enough CPU time in kernel threads to make my machine choppy,
  unresponsive, and unable to do simple things like play videos when I
  get off work.

  Therefore, I propose that we, for now, toggle intel_pstate to disable
  by default (I am using intel_pstate=disable on my command line right
  now, with great success), so it's still built in, and people can play
  with it, but it's off by default.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.9.0-4-generic 3.9.0-4.9
  ProcVersionSignature: Ubuntu 3.9.0-4.9-generic 3.9.4
  Uname: Linux 3.9.0-4-generic x86_64
  ApportVersion: 2.10.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  adconrad   2574 F.... pulseaudio
  CurrentDmesg:
   [   30.633035] init: plymouth-stop pre-start process (2079) terminated with status 1
   [   36.086916] br0: port 1(eth0) entered forwarding state
  Date: Fri Jun  7 08:48:56 2013
  HibernationDevice: RESUME=UUID=73040efa-baec-458a-8307-3bca07b26c3c
  InstallationDate: Installed on 2012-12-09 (179 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20121209)
  MachineType: LENOVO 4173LPB
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.9.0-4-generic root=UUID=2222aad5-ef31-4428-973f-71740fc7cb6a ro intel_pstate=disable quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.9.0-4-generic N/A
   linux-backports-modules-3.9.0-4-generic  N/A
   linux-firmware                           1.109
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/13/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8CET55WW (1.35 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4173LPB
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8CET55WW(1.35):bd09/13/2012:svnLENOVO:pn4173LPB:pvrThinkPadT420s:rvnLENOVO:rn4173LPB:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4173LPB
  dmi.product.version: ThinkPad T420s
  dmi.sys.vendor: LENOVO

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1188647/+subscriptions