Kernel update: Virtuozzo ReadyKernel patch 120.0 for Virtuozzo Hybrid Server 7.0 and Virtuozzo Hybrid Infrastructure 3.5, 4.0

Issue date: 2020-12-03

Applies to: Virtuozzo Hybrid Infrastructure 3.5, Virtuozzo Hybrid Infrastructure 4.0, Virtuozzo Hybrid Server 7.0

Virtuozzo Advisory ID: VZA-2020-071

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with a stability fix. The patch applies to the kernels 3.10.0-1062.4.2.vz7.116.7 (Virtuozzo Hybrid Server 7.0.12 HF1 and Virtuozzo Hybrid Infrastructure 3.5), 3.10.0-1062.12.1.vz7.131.10 (Virtuozzo Hybrid Server 7.0.13), 3.10.0-1127.8.2.vz7.151.14 (Virtuozzo Hybrid Server 7.0.14), 3.10.0-1127.8.2.vz7.158.8 (Virtuozzo Hybrid Infrastructure 4.0).

2. Bug Fixes

  • [3.10.0-1062.4.2.vz7.116.7 to 3.10.0-1127.8.2.vz7.158.8] Kernel crash in mem_cgroup_from_cont() due to a race between memory reclaim and offlining of a cgroup. (PSBM-122653)

3. Installing the Update

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