Livepatching
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Live patching - Gentoo Wiki
https://wiki.gentoo.org/wiki/Live_patching
Kernel live patching is an 'update-and-coming' kernel feature being developed by a few corporate Linux companies. Several companies have open sourced their development efforts, making it possible to bring kernel live patching to Gentoo.
A note of caution: Kernel live patching is risky. Count on hard freezing or panics to become normal...
Installation
Kernel
The Linux kernel must be version 4.0 or higher in order to have LIVEPATCH support.[1]
KERNEL Enable CONFIG_LIVEPATCH support
Processor type and features ---> [*] Kernel Live Patching
Available software
Here are some live patch packages available in Gentoo:
| Name | Package | Homepage | Description |
|---|---|---|---|
| kpatch | sys-kernel/kpatch | GitHub - dynup/kpatch: kpatch - live kernel patching | Dynamic kernel patching for Linux. |
| ksplice | N/A | Oracle Ksplice | Ksplice | Rebootless Linux kernel security updates. Absorbed by Oracle in 2011 and available only by paid support. The 2011 version can be found on GitHub. |
References
以上是关于Livepatching的主要内容，如果未能解决你的问题，请参考以下文章
Linux/Documentations: Kernel Livepatching