← Back to team overview

kernel-packages team mailing list archive

[Bug 1353947] Missing required logs.


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

apport-collect 1353947

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.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.

  Hypervisor with QEMU-2.0/libvirtd 1.2.2 stack when launching VM with
  CirrOS or Ubuntu 12.04

Status in QEMU:
Status in “linux” package in Ubuntu:

Bug description:
  The issue observed when running an hypervisor with QEMU 2.0/libvirtd 1.2.2
  The VM network interface is attached to a PCI virtual function (SR-IOV).

  When we ran VM with guest OS CirrOS or Ubuntu 12.04 we observed an hipervisor hang shortly after the VM is loaded
  We observed the same issue with Mellanox NIC and with Intel NIC

  We’ve tried few combinations of {GuestOS}X{Hypervisor} and we got the following findings:
  When a hypervisor is running QEMU 1.5/libvirtd 1.1.1 - no issue observed
  When a hypervisor is running QEMU 2.0/libvirtd 1.2.2 - CirrOS and Ubuntu 12.04 guest OSes caused hypervisor hang
  When a hypervisor is running QEMU 2.0/libvirtd 1.2.2 - CentOS 6.4 and Ubuntu 13.10 - no issue observed

  The problematic guest OSes are with kernel versions ~3.2.y

To manage notifications about this bug go to: