Kernel update: Virtuozzo ReadyKernel patch 105.1 for Virtuozzo 7.0, Virtuozzo Infrastructure Platform 2.5, 3.0 and Virtuozzo Infrastructure 3.5

Issue date: 2020-05-12

Applies to: Virtuozzo 7.0, Virtuozzo Infrastructure Platform 2.5, Virtuozzo Infrastructure Platform 3.0, Virtuozzo Infrastructure 3.5

Virtuozzo Advisory ID: VZA-2020-034

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to the kernels 3.10.0-862.20.2.vz7.73.29 (Virtuozzo 7.0.9 and Virtuozzo Infrastructure Platform 2.5), 3.10.0-957.10.1.vz7.85.17 (Virtuozzo 7.0.10), 3.10.0-957.12.2.vz7.86.2 (Virtuozzo 7.0.10 HF1), 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.vz7.116.7 (Virtuozzo 7.0.12 HF1 and Virtuozzo Infrastructure 3.5), 3.10.0-1062.12.1.vz7.131.10 (Virtuozzo 7.0.13).

2. Bug Fixes

[3.10.0-957.12.2.vz7.96.21 to 3.10.0-1062.12.1.vz7.131.10] Slow memory allocations in nf_conntrack when a netns is created. When a new netns is created, high-order page allocations can happen in nf_ct_alloc_hashtable(). If memory is fragmented, such allocations can become very slow due to memory reclaim, etc. This, in turn, could result in significant slowdowns on the node. (PSBM-103518)
[3.10.0-862.20.2.vz7.73.29 to 3.10.0-1062.12.1.vz7.131.10] i40iw: kernel complains about failed RTNL assertion in i40iw_addr_resolve_neigh(). (VSTOR-33397)

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.