Kernel update: New kernel 2.6.32-042stab140.4; Virtuozzo 6.0 Update 12 Hotfix 46 (6.0.12-3750)

Issue date: 2019-10-15

Applies to: Virtuozzo 6.0

Virtuozzo Advisory ID: VZA-2019-080

1. Overview

This update provides a new kernel 2.6.32-042stab140.4 for Virtuozzo 6.0 based on the RHEL 6.10 kernel 2.6.32-754.18.2.el6. The new kernel includes stability and usability fixes.

2. Bug Fixes

  • Kernel could crash with “BUG at net/ipv4/tcp_output.c” message in tcp_retransmit_skb(). (PSBM-97313)

  • Firewalld failed to start in a CentOS 7.7 container due to a firewalld patch that changed how ‘nf_conntrack’ was loaded. This heuristic can be disabled per-host by using ‘sysctl kernel.ve_smnfct_enabled’. (PSBM-98041)

  • Kernel could crash after failed migration or CPT restore with “BUG at kernel/cgroup.c” message in cgroup_rmdir(). (PSBM-98407, OVZ-6774, OVZ-6957, OVZ-7101)

3. Installing the Update

Install the update with ‘yum update’. Reboot the host and switch to the new kernel.

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