Kernel update: Virtuozzo ReadyKernel patch 94.0 for Virtuozzo 7.0 and Virtuozzo Infrastructure Platform 3.0

Issue date: 2019-12-24

Applies to: Virtuozzo 7.0, Virtuozzo Infrastructure Platform 3.0

Virtuozzo Advisory ID: VZA-2019-098

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to the kernels 3.10.0-957.12.2.vz7.96.21 (Virtuozzo 7.0.11 and Virtuozzo Infrastructure Platform 3.0), 3.10.0-1062.4.2.vz7.116.6 (Virtuozzo 7.0.12), 3.10.0-1062.4.2.vz7.116.7 (Virtuozzo 7.0.12 HF1).

2. Bug Fixes

[3.10.0-1062.4.2.vz7.116.6 to 3.10.0-1062.4.2.vz7.116.7] Processes could get stuck in copy_net_ns() forever. (PSBM-96057)
[3.10.0-1062.4.2.vz7.116.6 to 3.10.0-1062.4.2.vz7.116.7] kvm: potential system hang due to an error in mmu_shrink_scan(). (PSBM-96262)
[3.10.0-957.12.2.vz7.96.21 to 3.10.0-1062.4.2.vz7.116.7] A bug in ploop prevented recovery of corrupted ploop images. (PSBM-100441)
[3.10.0-1062.4.2.vz7.116.6 to 3.10.0-1062.4.2.vz7.116.7] The minimum amount of reserved free memory (vm.min_free_kbytes) was set too high by default. (VSTOR-29472)

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 JSON file.