ede25c3e36
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. Co-Authored-By: Martin Schuppert <mschuppert@redhat.com> Related: https://bugzilla.redhat.com/1923165 Closes-Bug: #1916758 Change-Id: Icfcfb1c07bbfbe05d27d67187d941c0c34fad2b2
14 lines
484 B
YAML
14 lines
484 B
YAML
---
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features:
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- |
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RHEL-8.3 kernel disabled the Intel “TSX” (Transactional
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Synchronization Extensions) feature by default as a preemptive
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security measure, but it breaks live migration from RHEL-7.9
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(or even RHEL-8.1 or RHEL-8.2) to RHEL-8.3.
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Operators are expected to explicitly define the TSX flag in
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their KernelArgs for the compute role to prevent live-migration
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issues during the upgrade process.
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This also impacts upstream CentOS systems.
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