Kernel update: Virtuozzo ReadyKernel patch 84.1 for Virtuozzo 7.0.11

Issue date: 2019-07-31

Applies to: Virtuozzo 7.0

Virtuozzo Advisory ID: VZA-2019-060

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to the kernel 3.10.0-957.12.2.vz7.96.21 (Virtuozzo 7.0.11).

2. Bug Fixes

  • pcompact operation is much slower for the containers on Virtuozzo Storage than for the ones stored locally. (PSBM-95772)

  • Processes could get stuck in copy_net_ns() forever. (PSBM-96057)

  • Storage: certain errors in CS caused by power failures were not handled properly. It was discovered that if a file located on Virtuozzo Storage cluster was reopened, the kernel could reuse its mappings without notifying MDS. As a result, if errors were then detected on a CS, for example, caused by power failures, the userspace components would be unable to handle them properly. (VSTOR-24004)

3. Installing the Update

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

4. References

The JSON file with the list of new and updated packages is available at