Slideshow: Live Kernel Patching with kGraft
Check out this slideshow about live patching of the Linux kernel using kGraft. Vojtech Pavlik, the Director of SUSE labs, lays out some important info such as:
- Why live patching is so much better than rebooting — especially for mission-critical servers
- How kGraft works
- Limitations of kGraft
He also includes excellent details about:
- Exactly where to patch
- Code flow redirection
- New function
- RCU-like replacement
- Automatic generation
Check out the slideshow now!
Disclaimer: As with everything else in the SUSE Blog, this content is definitely not supported by SUSE (so don't even think of calling Support if you try something and it blows up). It was contributed by a community member and is published "as is." It seems to have worked for at least one person, and might work for you. But please be sure to test, test, test before you do anything drastic with it.