Kernel update: Virtuozzo ReadyKernel patch 44.0 for Virtuozzo 7.0.1 and 7.0.3¶
Issue date: 2018-02-22
Applies to: Virtuozzo 7.0
Virtuozzo Advisory ID: VZA-2018-008
1. Overview¶
The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to Virtuozzo kernels 3.10.0-327.42.0.vz7.18.7 (Virtuozzo 7.0.1) and 3.10.0-327.42.0.vz7.20.18 (Virtuozzo 7.0.3).
2. Bug Fixes¶
Hard lockups happened when the kernel was processing SAK (Secure Attention Key). (PSBM-80340)
vstorage-mount spent a lot of time in isolate_freepages_block() in some cases, causing performance issues. (PSBM-81488)
Ploop: some I/O requests were not marked as completed in case of errors. (PSBM-81600)
3. Installing the Update¶
Download, install, and instantly apply the patch to the current kernel by running ‘readykernel update’.
4. References¶
https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-18.7-44.0-1.vl7/
https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-20.18-44.0-1.vl7/
The JSON file with the list of new and updated packages is available at http://docs.virtuozzo.com/vza/VZA-2018-008.json.