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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Thanks for testing.  Can you also test the following two kernels:

Version 3.2.40: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.40-precise/
Version 3.2.41: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.41-precise/

I don't expect 3.2.40 to have the bug, since that is what Ubuntu
3.2.0-40-generic is based off of.

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https://bugs.launchpad.net/bugs/1233086

Title:
  System Freeze when working with Eclipse IDE

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Precise:
  Confirmed

Bug description:
  I experience system freezes on Ubuntu 12.04 when working with eclipse
  (when switching between open files using tabs). This is reproducible
  on my system. I have not yet observed this behaviour at other tasks /
  programs; system runs fine except for that (including video games and
  watching videos).

  The last thing I notice in kernel log (when freeze) is this:

  kernel: [ 2560.052581] [drm:gen6_sanitize_pm] *ERROR* Power management
  discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 00070000, was 16000000

  Note: I have also observed that message when the system did not freeze
  thereafter, and have seen freezes not directly following that message,
  so this might be unrelated.

  Computer is a brand new Lenovo B590 with Intel video (module i915 is
  used). Since I have it only a few weeks, I cannot tell if this error
  already occurred in previous Ubuntu releases or not.

  A memory check (memtest86) did not show any errors.

  I have all (and only) official Ubuntu updates installed, currently
  3.2.0-54-generic #82-Ubuntu SMP Tue Sep 10 20:08:42 UTC 2013 x86_64
  x86_64 x86_64 GNU/Linux.

  I suspect that the Eclipse IDE requests some special stuff from video
  driver which then crashes. Obviously it should not be possible for
  userspace to crash the kernel, so this should also be considered a
  security problem.

  More details to come, I'd be glad to provide more data.
  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  manu       1836 F.... xfce4-volumed
                        manu       1851 F.... pulseaudio
   /dev/snd/controlC29: manu       1836 F.... xfce4-volumed
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf0610000 irq 45'
     Mixer name	: 'Intel PantherPoint HDMI'
     Components	: 'HDA:10ec0269,17aa5011,00100202 HDA:80862806,80860101,00100000'
     Controls      : 26
     Simple ctrls  : 12
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
     Mixer name	: 'ThinkPad EC (unknown)'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=03cfd31a-549e-419b-9741-7870bbe9f449
  InstallationMedia: Xubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820)
  MachineType: LENOVO 37613FG
  MarkForUpload: True
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-54-generic root=UUID=ca45191f-79c6-47ed-8ccf-be4ae9f14423 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-54.82-generic 3.2.50
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-54-generic N/A
   linux-backports-modules-3.2.0-54-generic  N/A
   linux-firmware                            1.79.6
  StagingDrivers: mei
  Tags:  precise staging precise staging
  Uname: Linux 3.2.0-54-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo tomcat7
  dmi.bios.date: 04/09/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: H9ET73WW(1.10)
  dmi.board.asset.tag: Not Available
  dmi.board.name: 37613FG
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 STD MM DPK IPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrH9ET73WW(1.10):bd04/09/2013:svnLENOVO:pn37613FG:pvrLenovoB590:rvnLENOVO:rn37613FG:rvrWin8STDMMDPKIPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 37613FG
  dmi.product.version: Lenovo B590
  dmi.sys.vendor: LENOVO

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