Linux Plumbers Conference 2021

Session

BOFs Session

24 Sept 2021, 07:00

BOF1/Virtual-Room (LPC Virtual)

Description

Birds of a Feather

189. RCU Implementation BOF

Paul McKenney (Facebook)

24/09/2021, 07:00

290. VMA life cycle and MM locking

Liam Howlett (Oracle)

24/09/2021, 07:45

This is to discuss the idea of limiting the VMAs to growing, reference counting and how locking could be handled for RCU safe VMA lookups.

202. Direct map management

Mike Rapoport (IBM), Vlastimil Babka (SUSE), Rick Edgecombe (Intel)

24/09/2021, 08:30

This BoF is to discuss pros and cons of various approaches to avoid
performance issues resulting from excess modifications of the direct
map, what APIs should these approaches provide and what is the best way
to integrate them with the existing allocators.

293. RISC-V platform specification

ATISH PATRA (Western Digital)

24/09/2021, 09:15

Let's continue the platform specification discussion in the BoF.
Some of the things that needs further discussion:

• PCT
• Mandating Compatibility and branding of the RISC-V platforms
• Do we mark various combinations deprecated or not ?

306. User interrupts BOF

Sohil Mehta

24/09/2021, 10:00

Further discussion on the proposed user interrupts feature

240. Documenting the Heterogeous Memory Model Architecture

Daniel Phillips (AMD)

HMM (heterogenous memory management) was first merged in the Linux kernel in 2017 and has since been adopted by several device drivers. As it integrates the device drivers more closely with the core kernel's virtual memory management, more kernel subsystems are starting to get involved in related code reviews and take notice, e.g. file systems and page cache. As a consequence, we need to...

15. RCU Implementation BoF

his is a gathering to discuss Linux-kernel RCU internals.

The exact topics depend on all of you, the attendees. In 2018, the focus was entirely on the interaction between RCU and the -rt tree. In 2019, the main gathering had me developing a trivial implementation of RCU on a whiteboard, coding-interview style, complete with immediate feedback on the inevitable bugs. In 2021, this was a Q&A...