kernel-packages team mailing list archive

[lf <ubuntu@xxxxxxxxx>]

Public bug reported:

Regression: #1294283 fixed memory ballooning in Hyper-V in 14.04, but
the bug has returned in 16.04.


Steps to reproduce:

1. Create Gen2 Hyper-V VM
2. Install Ubuntu 16.04
3. modprobe hv_balloon
Memory usage according to Hyper-V Manager will not change


This has been reproduced on 2 fresh Ubuntu Server 16.04 instances.

I installed linux-generic-xenial on a 14.04 instance, rebooted,
modprobe'd hv_balloon and memory usage in Hyper-V Manager reduced to the
correct level.

Environment:
Host: Windows NanoServer 2016

Ubuntu Server 16.04 version_signature: `Ubuntu 4.4.0-21.37-generic 4.4.6`
Ubuntu Server 14.04 version_signature: `Ubuntu 4.4.0-22.40~14.04.1-generic 4.4.8`

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

-- 
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/1584597

Title:
  Hyper-V Memory Ballooning re-broken in 16.04

Status in linux package in Ubuntu:
  New

Bug description:
  Regression: #1294283 fixed memory ballooning in Hyper-V in 14.04, but
  the bug has returned in 16.04.

  
  Steps to reproduce:

  1. Create Gen2 Hyper-V VM
  2. Install Ubuntu 16.04
  3. modprobe hv_balloon
  Memory usage according to Hyper-V Manager will not change

  
  This has been reproduced on 2 fresh Ubuntu Server 16.04 instances.

  I installed linux-generic-xenial on a 14.04 instance, rebooted,
  modprobe'd hv_balloon and memory usage in Hyper-V Manager reduced to
  the correct level.

  Environment:
  Host: Windows NanoServer 2016

  Ubuntu Server 16.04 version_signature: `Ubuntu 4.4.0-21.37-generic 4.4.6`
  Ubuntu Server 14.04 version_signature: `Ubuntu 4.4.0-22.40~14.04.1-generic 4.4.8`

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584597/+subscriptions