/sys/fs/cgroup/cpuset/machine.slice/machine-qemu\\x2d4\\x2dinstance\\x2d00000021.scope/emulator/cpuset.cpus': Permission denied

Solution In Progress - Updated -

Issue

  • Trying to create an instance. Getting the following error:
20-05-11 08:43:43.437 28 ERROR nova.scheduler.utils 
[req-3eb6a738-f61c-4876-81f8-796e25ac3aed a0eaf04e8f5e4d4a9ec64f9bde40ec28 1d6d9fd1f5624118ae7c00258327d8e0 - default default] 
[instance: 06ad309f-97f3-403a-8994-f535c4cd780b] 
Error from last host: thomas96-hpcomputesriov-sfr-0.localdomain (node thomas96-hpcomputesriov-sfr-0.localdomain): 
[u'Traceback (most recent call last):\n', u'  File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2008, in _do_build_and_run_instance\n    
filter_properties, request_spec)\n', 
u'  File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2292, in _build_and_run_instance\n    
instance_uuid=instance.uuid, reason=six.text_type(e))\n', 
u"RescheduledException: Build of instance 06ad309f-97f3-403a-8994-f535c4cd780b was re-scheduled: 
Unable to write to '/sys/fs/cgroup/cpuset/machine.slice/machine-qemu\\x2d4\\x2dinstance\\x2d00000021.scope/emulator/cpuset.cpus': Permission denied\n"]
  • This was all running just fine previous to a upgrade that was done in early march … Additional information is that this is only an issue when attempting to deploy instances to nodes that are configured for SR-IOV and pinned cores. When deploying to other compute nodes where the instance is not pinned and not needing SR-IOV all works well …

Environment

  • Red Hat OpenStack Platform 13.0 (RHOSP)

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content