Description
The Live Patching microconference at Linux Plumbers 2023 aims to gather stakeholders and interested parties to discuss proposed features and outstanding issues in live patching.
Breno Leitao
(Meta),
Song Liu
(Meta)
11/15/23, 9:30 AM
To support various Linux Kernels in hyperscale data centers, it is important to aggregate signals (console output, crash dump, etc.) among millions of servers. One of the key types of information in this massive dataset is the Kernel version running on each host.
At Meta, we use netconsole to analyze console outputs from millions of servers. Recent work...
Yonghong Song,
Song Liu
(Meta)
11/15/23, 10:00 AM
We want to discuss live patching with clang built LTO kernel. We have managed to make it work on top of kpatch now. We would like to discuss:
- How current comparison with vmlinux binary itself not scalable.
- How we used clang lto internal flag to compare pre-linker object files.
- How new special symbols introduced by lto may complicate live patching and how build system needs to adapt...