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[Michal Fiala <michal.fiala@xxxxxxxxxxxx>]

We have the same problem. We are using Hyper-V Windows 2012 R2 (updated on
3.12.2015) and Ubuntu 14.04 lts (updated 3.12.2015), kernel version
3.19.0-33-generic and the problem still exists.
We are also using integration services:

linux-cloud-tools-3.19.0-33-generic
linux-cloud-tools-common
linux-cloud-tools-generic-lts-vivid
linux-lts-vivid-cloud-tools-3.19.0-33

errors in kernel.log

Dec 6 08:22:41 sdgat02 kernel: [290029.720506] hv_netvsc vmbus_0_13
eth0: unable to send receive completion pkt (tid 2422)...give up retrying
Dec 6 08:22:41 sdgat02 kernel: [290029.721019] hv_netvsc vmbus_0_13
eth0: unable to send receive completion pkt (tid 2423)...retrying 1
Dec 6 08:22:41 sdgat02 kernel: [290029.721374] hv_netvsc vmbus_0_13
eth0: unable to send receive completion pkt (tid 2423)...retrying 2
Dec 6 08:22:41 sdgat02 kernel: [290029.721738] hv_netvsc vmbus_0_13
eth0: unable to send receive completion pkt (tid 2423)...retrying 3
Dec 6 08:22:41 sdgat02 kernel: [290029.722269] hv_netvsc vmbus_0_13
eth0: unable to send receive completion pkt (tid 2423)...retrying 4

and the network interface is not working.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-lts-vivid in Ubuntu.
https://bugs.launchpad.net/bugs/1505592

Title:
  3.19.0.30 kernel in hyper-v cause hv_netvsc problem

Status in linux-lts-vivid package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  i have a problem, same in https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1491957
  I think it's not fixed in 3.19 branch. 

  Oct 11 16:18:29 web01 kernel: [797134.247603] hv_netvsc vmbus_0_14 eth1: unable to send receive completion pkt (tid 1990)...retrying 1
  Oct 11 16:18:29 web01 kernel: [797134.247767] hv_netvsc vmbus_0_14 eth1: unable to send receive completion pkt (tid 1990)...retrying 2
  Oct 11 16:18:29 web01 kernel: [797134.247903] hv_netvsc vmbus_0_14 eth1: unable to send receive completion pkt (tid 1990)...retrying 3
  Oct 11 16:18:29 web01 kernel: [797134.248037] hv_netvsc vmbus_0_14 eth1: unable to send receive completion pkt (tid 1990)...retrying 4
  Oct 11 16:18:29 web01 kernel: [797134.248072] hv_netvsc vmbus_0_14 eth1: unable to send receive completion pkt (tid 1990)...give up retrying

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