Virtuozzo ReadyKernel patch 81.0 for Virtuozzo 7.0.6 HF3 to 7.0.9 as well as Virtuozzo Infrastructure Platform 2.5

Issue date: 2019-06-13

Applies to: Virtuozzo 7.0, Virtuozzo Infrastructure Platform 2.5

Virtuozzo Advisory ID: VZA-2019-048

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with security and stability fixes. The patch applies to the kernels 3.10.0-693.11.6.vz7.40.4 (Virtuozzo 7.0.6 HF3), 3.10.0-693.17.1.vz7.43.10 (Virtuozzo 7.0.7), 3.10.0-693.21.1.vz7.46.7 (Virtuozzo 7.0.7 HF2), 3.10.0-693.21.1.vz7.48.2 (Virtuozzo 7.0.7 HF3), 3.10.0-862.9.1.vz7.63.3 (Virtuozzo 7.0.8), 3.10.0-862.11.6.vz7.64.7 (Virtuozzo 7.0.8 HF1), and 3.10.0-862.20.2.vz7.73.24 (Virtuozzo 7.0.9 and Virtuozzo Infrastructure Platform 2.5).

2. Bug Fixes

  • If the amount of free memory is low, OOM killer would kill the tasks from cgroups without memory guarantees first. However, it seems more reasonable to kill the tasks from cgroups which exceed their guarantees the most. (VSTOR-22575)

3. Installing the Update

Download, install, and immediately apply the patch to the current kernel by running ‘readykernel update’.