Kernel update: Virtuozzo ReadyKernel patch 95.1 for Virtuozzo 7.0 and Virtuozzo Infrastructure Platform 3.0

Issue date: 2020-01-14

Applies to: Virtuozzo 7.0, Virtuozzo Infrastructure Platform 3.0

Virtuozzo Advisory ID: VZA-2020-002

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.vz7.116.7 (Virtuozzo 7.0.12 HF1).

2. Bug Fixes

  • [3.10.0-957.12.2.vz7.96.21 to 3.10.0-1062.4.2.vz7.116.7] scsi: printing lots of messages about rejected I/O causes a hard lockup and a kernel crash. (PSBM-100118)

  • [3.10.0-1062.4.2.vz7.116.7] Reading of /proc/bc/resources line by line would never end: no end of file was reported. (PSBM-100575)

  • [3.10.0-957.12.2.vz7.96.21 to 3.10.0-1062.4.2.vz7.116.7] Potential kernel crash in __radix_tree_insert() when fscache is used for NFS mounts. (PSBM-100579)

  • [3.10.0-1062.4.2.vz7.116.7] Kernel crash in shrink_slab() when trying to mount an image with a broken ext4 file system. (PSBM-100593)

  • [3.10.0-1062.4.2.vz7.116.7] ixgbe: lots of warnings in the system log due to incorrect check for firmware errors. (PSBM-100722)

3. Installing the Update

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