yahoo-eng-team team mailing list archive

[Chris Friesen <chris.friesen@xxxxxxxxxxxxx>]

Looks like this has already been dealt with on Master via bug 1614054,
commit 6683bf9.

** Changed in: nova
       Status: New => Invalid

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1654345

Title:
  realtime emulatorpin should use pcpus, not vcpus

Status in OpenStack Compute (nova):
  Invalid

Bug description:
  When specifying "hw:cpu_realtime_mask" in the flavor,
  LibvirtDriver._get_guest_numa_config() calls
  hardware.vcpus_realtime_topology() to calculate "vcpus_rt" and
  "vcpus_em".  It then directly uses "vcpus_em" to set the "emulatorpin"
  cpuset.

  The problem is that libvirt expects the "emulatorpin" cpuset to be
  specified as physical CPUs, not virtual CPUs.

  This results in unexpected values being used for the emulator pinning.

  The fix is to convert "vcpus_em" from vCPUs to pCPUs, and assign the
  pCPUs to the "emulatorpin" cpuset.

To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1654345/+subscriptions