kpatch is now in maintenance mode - klp-build is the future #1498
Description
Summary
kpatch-build functionality has been upstreamed into the Linux kernel as
klp-build, starting with Linux 6.19. As a result, kpatch is moving to maintenance mode.
Background
kpatch has served the community well for over a decade, providing a way to
build and apply live kernel patches. With klp-build now part of the upstream
kernel, the natural next step is to consolidate efforts there rather than
maintain parallel functionalities.
What's changing
- No new features will be added to kpatch
- No bug fixes for issues specific to newer kernels (6.19+) or newer toolchains
- Existing functionality for older kernels will continue to be maintained
klp-build architecture support
| Architecture | Status |
|---|---|
| x86-64 | Supported (Linux 6.19+) |
| arm64 | Patches in development on LKML |
| ppc64le | Coming soon |
| s390 | Coming soon |
What should I use?
- Linux 6.19+ on x86-64: Use klp-build
- Older kernels or other architectures: kpatch continues to work and will be minimally maintained
Questions?
Feel free to ask questions in this thread.