Kernel Live Patching at Scale

Kernel Live Patching at Scale

Linux Plumbers Conference via YouTube Direct link

KLP transition failure example

10 of 13

10 of 13

KLP transition failure example

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Kernel Live Patching at Scale

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  1. 1 Kernel Live Patching at Scale
  2. 2 Applying fix via a full reboot
  3. 3 Replace ftrace-able kernel functions
  4. 4 Patch multiple functions atomically
  5. 5 KLP is common among enterprise distros -Fix bugs without rebooting the system
  6. 6 How: Homogeneous configuration
  7. 7 insmod task was hogging CPU - starving ksoftirqd
  8. 8 Tracing is first class citizen in data centers
  9. 9 KLP may conflict with tracing tools
  10. 10 KLP transition failure example
  11. 11 Proactively identify and fix corner cases
  12. 12 Add new features to the tool chain
  13. 13 Reduce KLP transition failures

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