Kernel update: Virtuozzo ReadyKernel patch 100.0 for Virtuozzo 7.0, Virtuozzo Infrastructure Platform 3.0 and Virtuozzo Hybrid Infrastructure 3.5¶
Issue date: 2020-03-17
Applies to: Virtuozzo 7.0, Virtuozzo Infrastructure Platform 3.0, Virtuozzo Hybrid Infrastructure 3.5
Virtuozzo Advisory ID: VZA-2020-020
The cumulative Virtuozzo ReadyKernel patch was updated with a stability fix. 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 and Virtuozzo Hybrid Infrastructure 3.5).
2. Bug Fixes¶
[3.10.0-957.12.2.vz7.96.21 to 3.10.0-1062.4.2.vz7.116.7] ploop: potential corruption of the index during discard operation. A race condition was discovered in ploop, which could lead to corruption of the index during discard operations in certain cases. NOTE: It is not recommended to manually unload the ReadyKernel patch with the fix for this issue while any discard operations for ploop images are in progress: the ploop images could be corrupted as a result. Upgrading the patch is OK, only manual unloads and downgrades can be problematic. (PSBM-101823)
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-2020-020.json.