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[Chris J Arges <1332409@xxxxxxxxxxxxxxxxxx>]

** Tags added: ksm-numa-guest-perf

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https://bugs.launchpad.net/bugs/1332409

Title:
  [Supermicro X9DR3-F] Virtual machines hang in kernel 3.13

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Multi-cpu systems are experiencing guest kernels hanging/crashing
  (both windows & linux guests) in kernel 3.13. (Windows guests are
  getting bluescreens, linux guests just seem to be locking up).

  Downgrading to 3.12 eliminates the problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-29-lowlatency 3.13.0-29.53
  ProcVersionSignature: Ubuntu 3.13.0-29.53-lowlatency 3.13.11.2
  Uname: Linux 3.13.0-29-lowlatency x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Jun 18 16:43 seq
   crw-rw---- 1 root audio 116, 33 Jun 18 16:43 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  Date: Fri Jun 20 01:07:59 2014
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb:
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 003: ID 0557:2221 ATEN International Co., Ltd Winbond Hermon
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Supermicro X9DR3-F
  PciMultimedia:

  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-lowlatency root=UUID=0d5098de-e0c2-4884-bf6a-5d68f9ad5266 ro console=tty1 console=ttyS1,115200n8 nomodeset rootdelay=15 text nomdmonddf nomdmonisw
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-29-lowlatency N/A
   linux-backports-modules-3.13.0-29-lowlatency  N/A
   linux-firmware                                1.127.2
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-19 (61 days ago)
  dmi.bios.date: 07/31/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3.0a
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: X9DR3-F
  dmi.board.vendor: Supermicro
  dmi.board.version: 0123456789
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Supermicro
  dmi.chassis.version: 0123456789
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.0a:bd07/31/2013:svnSupermicro:pnX9DR3-F:pvr0123456789:rvnSupermicro:rnX9DR3-F:rvr0123456789:cvnSupermicro:ct3:cvr0123456789:
  dmi.product.name: X9DR3-F
  dmi.product.version: 0123456789
  dmi.sys.vendor: Supermicro

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