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DevConf.IN '18 has ended
DevConf.in 2018 is the second free annual community conference sponsored by Red Hat for Developers, System admins, DevOps engineers, Testers, Documentation writers and other contributors to open source technologies. It is a platform for the local FOSS community participants to come together and engage in the knowledge sharing through technical talks, workshops, panel discussions, hackathons and such activities.

When: August 4-5, 2018

Venue: Christ University - Bengaluru, India

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Sunday, August 5 • 3:30pm - 4:00pm
Hotpatching Power - Current State of the Art

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The Linux Kernel Livepatch framework allows for patching kernel routines to fix bugs and/or security issues on live systems without incurring any downtime, thus increasing the system and workload availability. The Livepatch framework uses the kpatch tool to compile the function to be patched and when inserted as a module and redirects subsequent calls to the function to the patched copy.
Kpatch and Livepatch frameworks now work on little-endian Power systems (ppc64le). This talk details how we got there, with particular focus on obstacles, design issues, changes needed to accommodate the quicks of the architecture and its ABI. The talk will also touch upon work planned to achieve increased reliability of the framework on Power.

Speakers
avatar for Kamalesh Babulal

Kamalesh Babulal

Staff Software Enginner, IBM
Kamalesh has been working on Linux for over a decade. He works at Linux Technology Center, IBM. Where he actively works on kpatch/livepatch and other Reliability Availability and Serviceability (RAS) technologies.


Attendees (102)