Kernel update: Virtuozzo ReadyKernel patch 67.0 for Virtuozzo 7.0.4 HF3 to 7.0.7 HF3

Issue date: 2018-11-30

Applies to: Virtuozzo 7.0

Virtuozzo Advisory ID: VZA-2018-084

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to Virtuozzo kernels 3.10.0-514.16.1.vz7.30.10 (7.0.4 HF3) to 3.10.0-693.21.1.vz7.48.2 (7.0.7 HF3).

2. Bug Fixes

  • It was discovered that a special sequence of operations involving NFS server in a container with FEATURES=’nfsd=on’ could crash the host kernel. (PSBM-90024)

  • Asynchronous discard requests could fail with EIO because ploop did not properly align them. (PSBM-90052)

3. Installing the Update

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