hyper-v: Enabling dynamic memory on Hyper-V may lead to persistent load value of 1

[Abhishek Gupta]

It appears that if you enable dynamic memory on Hyper-V, and then run the top command then load metrics may always show 1 for the 1 minute average (See attached image). This is because the ballooning mechanism sleeps in uninterruptible mode which adds to the system load metric. Please use the following upstream patch to eliminate this problem:

Drivers: hv: Ballon: Make pressure posting thread sleep interruptibly

http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/hv/hv_balloon.c?id=5dba4c56dfa660a85dc8e897990948cdec3734bf

Regards,
Abhishek

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1294253

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Abhishek Gupta (abgupta)]

Logs not needed.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.13.0-19.39

---------------
linux (3.13.0-19.39) trusty; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1295462

  [ Andy Whitcroft ]

  * ubuntu: aufs3 -- update update scripting
  * ubuntu: AUFS -- update to 75dbb997b5812e16771bec20e92449ba0b1705d9

  [ Anup Patel ]

  * SAUCE: (no-up) KVM: Documentation: Fix typo for KVM_ARM_VCPU_INIT ioctl
  * SAUCE: (no-up) arm64: KVM: Force undefined exception for Guest SMC
    intructions

  [ dann frazier ]

  * SAUCE: (no-up) Fix pcie-xgene build failure

  [ Emmanuel Grumbach ]

  * SAUCE: iwlwifi: mvm: send udev event upon firmware error to dump logs

  [ Feng Kan ]

  * SAUCE: (no-up) power: reset: Add generic SYSCON register mapped reset
    - LP: #1284433
  * SAUCE: (no-up) arm64: dts: Add X-Gene reboot driver dts node
    - LP: #1284433

  [ Hans de Goede ]

  * SAUCE: (no-up) libahci: Allow drivers to override start_engine
    - LP: #1282920
  * SAUCE: (no-up) ahci-platform: Add support for devices with more then 1
    clock
    - LP: #1282920
  * SAUCE: (no-up) ahci-platform: Add support for an optional regulator for
    sata-target power
    - LP: #1282920
  * SAUCE: (no-up) ahci-platform: Add enable_ / disable_resources helper
    functions
    - LP: #1282920
  * SAUCE: (no-up) ahci-platform: "Library-ise" ahci_probe functionality
    - LP: #1282920
  * SAUCE: (no-up) ahci-platform: "Library-ise" suspend / resume
    functionality
    - LP: #1282920

  [ Iyappan Subramanian ]

  * SAUCE: (no-up) Documentation: APM X-Gene SoC Ethernet DTS binding
    documentation
  * SAUCE: (no-up) arm64: dts: APM X-Gene SoC Ethernet device tree nodes
  * SAUCE: (no-up) drivers: net: APM X-Gene SoC Ethernet base driver
  * SAUCE: (no-up) drivers: net: APM X-Gene SoC Ethernet driver error
    handling
  * SAUCE: (no-up) drivers: net: APM X-Gene SoC Ethernet driver ethtool
    support

  [ Loc Ho ]

  * SAUCE: (no-up) Documentation: Add APM X-Gene SoC 15Gbps Multi-purpose
    PHY driver binding documentation
    - LP: #1282920
  * SAUCE: (no-up) PHY: add APM X-Gene SoC 15Gbps Multi-purpose PHY driver
    - LP: #1282920
  * SAUCE: (no-up) arm64: Add APM X-Gene SoC 15Gbps Multi-purpose PHY DTS
    entries
    - LP: #1282920
  * SAUCE: (no-up) Documentation: Add documentation for the APM X-Gene SoC
    SATA host controller DTS binding
  * SAUCE: (no-up) ata: Add APM X-Gene SoC AHCI SATA host controller driver
  * SAUCE: (no-up) ata: Fix compiler warning with APM X-Gene host
    controller driver
  * SAUCE: (no-up) arm64: Add APM X-Gene SoC AHCI SATA host controller DTS
    entries
  * SAUCE: (no-up) clk: arm64: Fix the clock-names property for pcppll,
    socpll, and socplldiv2

  [ Marc Zyngier ]

  * SAUCE: (no-up) arm64: KVM: force cache clean on page fault when caches
    are off
  * SAUCE: (no-up) arm64: KVM: allows discrimination of AArch32 sysreg
    access
  * SAUCE: (no-up) arm64: KVM: trap VM system registers until MMU and
    caches are ON
  * SAUCE: (no-up) ARM: KVM: introduce kvm_p*d_addr_end
  * SAUCE: (no-up) arm64: KVM: flush VM pages before letting the guest
    enable caches
  * SAUCE: (no-up) ARM: KVM: force cache clean on page f...