Kernel update: Virtuozzo ReadyKernel patch 114.2 for Virtuozzo Hybrid Server 7.0¶
Issue date: 2020-08-24
Applies to: Virtuozzo Hybrid Server 7.0
Virtuozzo Advisory ID: VZA-2020-059
The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to the kernels 3.10.0-1062.12.1.vz7.131.10 (Virtuozzo Hybrid Server 7.0.13), 3.10.0-1127.8.2.vz7.151.14 (Virtuozzo Hybrid Server 7.0.14).
2. Bug Fixes¶
[3.10.0-1062.12.1.vz7.131.10 to 3.10.0-1127.8.2.vz7.151.14] Memory reclaim could become too slow leading to high LA on the nodes. The original fix for PSBM-99181 and related issues introduced a problem: management of shrinkers used to reclaim memory could become very inefficient in certain cases, causing higher load on the affected nodes. (PSBM-99181)
[3.10.0-1062.12.1.vz7.131.10 to 3.10.0-1127.8.2.vz7.151.14] nf_conntrack: potential kernel crash in nf_ct_gre_keymap_destroy(). (PSBM-106273)
3. Installing the Update¶
Download, install, and immediately apply the patch to the current kernel by running ‘readykernel update’.
The JSON file with the list of new and updated packages is available at https://docs.virtuozzo.com/vza/VZA-2020-059.json.