Stateless Linux Kernel Crashdumps

on YouTube ↗26m

" summary

Demonstrates a stateless kdump that sends full kernel memory images over the network using HTTP PUT, configured entirely via crashkernel cmdline so no host root or LUKS keys are required. The crash kernel is a prebuilt, signed initramfs that probes NICs, brings up interfaces, and posts dumps only to an IPv6 link-local collector verified by TLS. Demo shows a VM crash successfully uploading a dump; real servers take minutes for large images.

AI-written summary · about

" chapters (7)

1. 0:00Introduction to crash dumps
2. 1:45What are kernel crash dumps
3. 4:57Limitations of classic Kdump
4. 9:30Stateless Kdump approach
5. 15:08Securing network dump destinations
6. 18:25Demo of stateless Kdump
7. 25:33Q&A and conclusion

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