A collection of Ansible playbooks to detect and report potential issues during TripleO deployments
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- hosts: nova_libvirt
gather_facts: false
name: RHEL8.x kernel flag for Compute nodes validation
description: |
RHEL-8.3 kernel disabled the Intel TSX (Transactional
Synchronization Extensions) feature by default as a preemptive
security measure, but it breaks live migration from RHEL-7.9
(or even RHEL-8.1 or RHEL-8.2) to RHEL-8.3.
Operators are expected to explicitly define the TSX flag in
their KernelArgs for the compute role to prevent live-migration
issues during the upgrade process.
This also impacts upstream CentOS systems.
- pre-upgrade
- pre-system-upgrade
- pre-overcloud-prepare
- pre-overcloud-upgrade
- pre-overcloud-converge
- pre-update
- pre-update-prepare
- pre-update-run
- pre-update-converge
compute_tsx_debug: false
compute_tsx_warning: false
- compute_tsx