Linux Plumbers Conference 2022

Name: Linux Plumbers Conference 2022
Start: 2022-09-12T08:00:00+01:00
End: 2022-09-14T22:30:00+01:00
Location: No location set

12–14 Sept 2022

Europe/Dublin timezone

BOFs Session

Kernel Memory Management MC

LPC Refereed Track

System Boot and Security MC

VFIO/IOMMU/PCI MC

eBPF & Networking

Kernel Testing & Dependability MC

Rust MC

Service Management and systemd MC

BOFs Session 2

CPU Isolation MC

Confidential Computing MC

linux/arch MC

Android MC

RISC-V MC

Real-time and Scheduling MC

Toolchains

Containers and Checkpoint/Restore MC

IoTs a 4-Letter Word MC

Kernel Summit

Zoned Storage Devices (SMR HDDs & ZNS SSDs) MC

Compute Express Link MC

Open Printing MC

Power Management and Thermal Control MC

	12 Sept 2022
Time	"Herbert"	"Lansdowne"	"Meeting 1&2"	"Meeting 6"	"Meeting 9"	"Pembroke"	"Ulster & Munster"
10:00	Copy On Write, Get User Pages, and Mysterious Counters David Hildenbrand "Herbert"	PREEMPT_RT - how not to break it. Sebastian Siewior "Lansdowne"	IOMMUFD Discussion Jason Gunthorpe "Meeting 1&2"	A Clash of Things: Name Ambiguity, Tracing and kallsyms Nick Alcock "Meeting 6"	gpio and pinctrl BoF Drew Fustini "Meeting 9"	The journey of BPF from restricted C language towards extended and safe C. Alexei Starovoitov "Pembroke"	Welcome to System Boot and Security MC Michał Żygowski, Daniel Kiper "Ulster & Munster"
10:05			IOMMUFD Discussion Jason Gunthorpe "Meeting 1&2"				Secure bootloader for Confidential Computing Ken Lu, Jiewen Yao "Ulster & Munster"
10:30	Scalability solutions for the mmap_lock - Maple Tree and per-VMA locks Michel Lespinasse, Liam Howlett, SUREN BAGHDASARYAN "Herbert"		Cooperative DMA in a memory-oversubscribed environment James Gowans "Meeting 1&2"			HID-BPF Benjamin Tissoires "Pembroke"
10:40							Secure Boot auto enrollment vincent dagonneau "Ulster & Munster"
10:45		Launching new processes with `io_uring_spawn` for fast builds Josh Triplett "Lansdowne"
11:00	Memory tiering Jerome Glisse "Herbert"		Break			eBPF Kernel Scheduling with Ghost Barret Rhoden "Pembroke"
11:15	Memory tiering Jerome Glisse "Herbert"		PCIe Endpoint Subsystem Open Items Discussion Manivannan Sadhasivam, Kishon Vijay Abraham I "Meeting 1&2"				Kernel TEE subsystem evolution Sumit Garg "Ulster & Munster"
11:30	Break	Break		Break	Break	Break
11:45	Multi-Gen LRU: Current Status & Next Steps Rom Lemarchand, Jesse Barnes‎ "Herbert"		Instant Detection of Virtual Devices Ajay Kaher "Meeting 1&2"
11:50							Break
12:00		Exercising the Linux scheduler with Yogini Len Brown "Lansdowne"				Tuning Linux TCP for data-center networks Yuchung Cheng "Pembroke"
12:15	Preserving guest memory across kexec James Gowans "Herbert"		Break
12:20			Break				Remote Attestation of IoT devices using a discrete TPM 2.0 Svetlozar Kalchev, Dimitar Tomov "Ulster & Munster"
12:30			Exposing PCIe topology to Guest OS for peer-to-peer Oded Gabbay "Meeting 1&2"			Can the Linux networking stack be used with very high speed applications? David Ahern "Pembroke"
12:40	Low-overhead memory allocation tracking Kent Overstreet, SUREN BAGHDASARYAN "Herbert"
12:45		OS Scheduling with Nest: Keeping Tasks Close Together on Warm Cores Julia Lawall "Lansdowne"
12:55							TrenchBoot Update Daniel Smith "Ulster & Munster"
13:00			Integrated PCIe monitoring and tracing facilities Yicong Yang "Meeting 1&2"			Overview of the BPF networking hooks and user experience in Meta Martin Lau "Pembroke"
13:05	The slab allocators of past, present, and future Vlastimil Babka "Herbert"
13:30		Lunch		Lunch	Lunch	Lunch
15:00	Rust GCC Front-end David Faust, Philip Herron "Herbert"	RV: where are we? Daniel Bristot de Oliveira "Lansdowne"	systemd cgroup delegation and control processes Michal Koutný "Meeting 1&2"	Btrfs BoF Chris Mason "Meeting 6"	New userspace API for display-panel brightness control Hans de Goede "Meeting 9"	BPF Signing and IMA integration KP Singh "Pembroke"	Integrating testing with maintainer flows Veronika Kabatova, Mark Brown "Ulster & Munster"
15:25	Rust GCC Front-end David Faust, Philip Herron "Herbert"		#snapsafe: restoring uniqueness in Virtual Machine clones Babis Chalios "Meeting 1&2"			BPF Signing and IMA integration KP Singh "Pembroke"
15:30	rustc_codegen_gcc: A gcc codegen for the Rust compiler Antoni Boucher "Herbert"					Revisiting eBPF Seccomp Filters Jinghao Jia, Tianyin Xu "Pembroke"	Checking your work: Linux kernel testing and CI David Vernet "Ulster & Munster"
15:45		Modularization for Lockdep Boqun Feng "Lansdowne"
15:50							Making syzbot reports more developer-friendly Aleksandr Nogikh "Ulster & Munster"
16:00	Rust for Linux: Status Update Wedson Almeida Filho, Miguel Ojeda "Herbert"					State of kprobes/trampolines batch attachment Jiri Olsa "Pembroke"
16:10			Slimming down the journal Daan De Meyer "Meeting 1&2"				Designing UAPI for Fuzz-ability Dmitry Vyukov "Ulster & Munster"
16:30	Break	Break	Slimming down the journal Daan De Meyer "Meeting 1&2"	Break	Break	Break	Break
16:50	Break	Break	Break	Break	Break	Break	Break
17:00	Linux Rust NVMe Driver Status Update Andreas Hindborg "Herbert"	Make RCU do less (save power)! Rushikesh Kadam, Uladzislau Rezki, Joel Fernandes "Lansdowne"	Towards Secure Unified Kernel Images for Generic Linux Distributions and Everyone Else Lennart Poettering "Meeting 1&2"	Linux from power-reset: status, challenges, and opportunities Ron Minnich, Jonathan Zhang "Meeting 6"	Timed I/O: Introducing Precisely Timed Platform I/O Driven by the System Clock Christopher Hall "Meeting 9"	Developing eBPF profiler for polyglot cloud-native applications Javier Honduvilla Coto, Vaishali Thakkar "Pembroke"	The emerging of the virtual QA team for Linux kernel philip li "Ulster & Munster"
17:20							KUnit: Function Redirection and More David Gow, Brendan Higgins "Ulster & Munster"
17:30	The Integration of Rust with Kernel Testing Service Yujie Liu "Herbert"					Performance insights into eBPF step by step Dmitrii Dolgov "Pembroke"
17:40							How to introduce KUnit to physical device drivers? Maíra Canal, Isabella Basso, Magali Lemes, Tales da Aparecida "Ulster & Munster"
17:45		Restartable Sequences: Scheduler-Aware Scaling of Memory Use on Many-Core Systems Mathieu Desnoyers "Lansdowne"	New design for initrds Zbigniew Jędrzejewski-Szmek "Meeting 1&2"
18:00	Rust in the Kernel (via eBPF) Michal Rostecki, Dave Tucker "Herbert"						Simple KernelCI Labs with Labgrid Jan Lübbe "Ulster & Munster"
	13 Sept 2022
Time	"Herbert"	"Lansdowne"	"Meeting 1&2"	"Meeting 6"	"Meeting 9"	"Pembroke"	"Ulster & Munster"
10:00	Upstream & Guest Distro support for Confidential Compute Jianxiong Gao "Herbert"	How I started chasing speculative type confusion bugs in the kernel and ended up with 'real' ones Jakob Koschel "Lansdowne"	High memory management API changes Ira Weiny "Meeting 1&2"	A NUMA interface for futex2 André Almeida "Meeting 6"	Accelerators BoF David Airlie "Meeting 9"	Machine reable description for netlink protocols (YAML?) Jakub Kicinski "Pembroke"
10:05							CPU isolation tuning through cpuset Frederic Weisbecker "Ulster & Munster"
10:20	Unmapped Private Memory for Confidential Guests Michael Roth "Herbert"
10:30			Mitigating speculative execution attacks with ASI - follow up Junaid Shahid, Ofir Weisse "Meeting 1&2"			Cilium's BPF kernel datapath revamped Daniel Borkmann "Pembroke"
10:40	Securely booting confidential VMs with encrypting disk Tobin Feldman-Fitzthum, Dov Murik "Herbert"						Isolation aware smp_call_function/queue_work_on APIs Marcelo Tosatti "Ulster & Munster"
10:45		Profiling data structures Arnaldo Carvalho de Melo "Lansdowne"
11:00	Using DICE Attestation for SEV and SNP Hardware Rooted Attestation Peter Gonda "Herbert"		Consolidating representations of the physical memory Mike Rapoport "Meeting 1&2"			A BPF map for online packet classification Anton Protopopov "Pembroke"
11:15							Make RCU do less (and disturb CPUs less)! Uladzislau Rezki, Rushikesh Kadam, Joel Fernandes "Ulster & Munster"
11:20	Hardening Linux guest kernel for CC Elena Reshetova "Herbert"
11:30		Break	Break	Break	Break	Break
11:40	Break
11:50							Break
12:00		Inside the Linux Kernel Random Number Generator Jason Donenfeld "Lansdowne"	LoongArch: What we will do next Xuerui WANG, Jianmin Lv, Huacai Chen "Meeting 1&2"	RCU Office Hours BoF Paul McKenney "Meeting 6"	GPU/Graphics - Userspace console - cgroups - BOF David Airlie "Meeting 9"	How to share IPv4 addresses by partitioning the port space Jakub Sitnicki, Marek Majkowski "Pembroke"
12:10	The elephants in the confidential room: Attestation and verification Samuel Ortiz "Herbert"
12:20							CPU isolation vs jailbreaking IPIs Valentin Schneider "Ulster & Munster"
12:30	Identifying and Eliminating Contention from Booting Concurrent SNP VMs Jacky Li, Marc Orr "Herbert"		Extending EFI support in Linux to new architectures Ilias Apalodimas, Ard Biesheuvel "Meeting 1&2"			Networking resource control with per-cgroup LSM Stanislav Fomichev "Pembroke"
12:45		Live in a world with multiple memory types Ying Huang "Lansdowne"
12:50	Testing Intel TDX functionality with new set of self tests Sagi Shahar "Herbert"
12:55							rtla osnoise: what is missing? Daniel Bristot de Oliveira "Ulster & Munster"
13:00			Make LL/SC arch has a strict forward guarantee Ren Guo "Meeting 1&2"			eBPF Standardization Dave Thaler "Pembroke"
13:10	Interrupt Security for AMD SEV-SNP Ashish Kalra "Herbert"					eBPF Standardization Dave Thaler "Pembroke"
13:30		Lunch		Lunch		Lunch
15:00	Intro	Kernel Live Patching at Scale Rik van Riel, Song Liu, David Vernet "Lansdowne"	Intro ATISH PATRA, Palmer Dabbelt "Meeting 1&2"	Device attestation, secure channel setup / SPDM - how to make progress? Lukas Wunner, Jonathan Cameron "Meeting 6"		Bringing packet queueing to XDP Toke Høiland-Jørgensen "Pembroke"	rtla: what is next? Daniel Bristot de Oliveira "Ulster & Munster"
15:05	GKI experience Elliot Berman "Herbert"		The Odyssey of HWCAP on RISC-V platforms "Ruinland" ChuanTzu Tsai "Meeting 1&2"
15:20	Technical debt Matthias Männich "Herbert"
15:30	Hermetic builds with Bazel Matthias Männich "Herbert"					XDP gaining access to NIC hardware hints via BTF Jesper Dangaard Brouer "Pembroke"	Bringing Energy-Aware Scheduling to x86 Ricardo Neri, Len Brown "Ulster & Munster"
15:40	Hermetic builds with Bazel Matthias Männich "Herbert"		RISC-V ACPI and UEFI Updates Sunil V L "Meeting 1&2"
15:45	STG for ABI monitoring Giuliano Procida "Herbert"	TCP memory isolation on multi-tenant servers Christian Warloe, Wei Wang, Shakeel Butt "Lansdowne"
15:55	STG for ABI monitoring Giuliano Procida "Herbert"						Latency hints for CFS task Vincent Guittot "Ulster & Munster"
16:00	fw_devlink and parallelization updates Saravana Kannan "Herbert"					FW centric devices, NIC customization Mark Bloch, Saeed Mahameed "Pembroke"
16:10			What to do with kconfig.socs? Conor Dooley "Meeting 1&2"
16:15	Virtualization in Android Serban Constantinescu, David Brazdil "Herbert"
16:30	Cuttlefish and Kernel Dev Ram Muthiah "Herbert"	Break		Break		Break	Break
16:40	Cuttlefish and Kernel Dev Ram Muthiah "Herbert"		Break				Break
16:45	Break		Break				Linux Kernel Scheduling and split-LLC architectures: Overview, Challenges and Opportunities Gautham R Shenoy, Prateek Nayak "Ulster & Munster"
17:00	eBPF-based FUSE Paul Lawrence "Herbert"	Meta’s CXL Journey and Learnings in Linux Jonathan Zhang "Lansdowne"	Confidential Computing for RISC-V-based Platforms RAVI SAHITA "Meeting 1&2"			Socket termination for policy enforcement and load-balancing Aditi Ghag "Pembroke"
17:10	eBPF-based FUSE Paul Lawrence "Herbert"						Limit the idle CPU search depth and use CPU filter during task wake up Yun Wu, Chen Yu "Ulster & Munster"
17:15	EROFS as a replacement for EXT4 and Squashfs David Anderson "Herbert"
17:30	MGLRU results on Android Kalesh Singh "Herbert"		Tuning in-kernel routines on RISC-V Heiko Stuebner "Meeting 1&2"			MPTCP: Extending kernel functionality with eBPF and Netlink Matthieu Baerts "Pembroke"
17:35	MGLRU results on Android Kalesh Singh "Herbert"						Linux needs a Scheduler QOS API -- and it isn't nice(2) Len Brown "Ulster & Munster"
17:45	io_uring in Android Akilesh Kailash "Herbert"	nouveau in the times of nvidia firmware and open source kernel module David Airlie "Lansdowne"
18:00	(Impact of) Recent CPU topology changes Dietmar Eggemann, Ionela Voinescu "Herbert"		RISC-V ftrace: working with preemption Tao Chiu "Meeting 1&2"			Percpu hashtab traversal measurement study Brian Vazquez "Pembroke"	PREEMPT_RT Q&A with tglx Thomas Gleixner "Ulster & Munster"
18:15	Dynamic Energy Model to handle leakage power Lukasz Luba "Herbert"
18:30				Getting the task placement right on split-LLC architectures Gautham R Shenoy, Prateek Nayak "Meeting 6"
	14 Sept 2022
Time	"Herbert"	"Lansdowne"	"Meeting 1&2"	"Meeting 6"	"Meeting 7"	"Meeting 8"	"Meeting 9"	"Pembroke"	"Ulster & Munster"
09:55									Toolchain Track Welcome Nick Desaulniers, Jose E. Marchesi "Ulster & Munster"
10:00	Opening session Stéphane Graber "Herbert"	Regression tracking & fixing: current state, problems, and next steps Thorsten Leemhuis "Lansdowne"	Zoned MC Conference Kick Off Matias Bjørling, Adam Manzanares "Meeting 1&2"				Reusing the BPF CI Quentin Monnet "Meeting 9"	Putting firmware on the device: a Zephyr+Yocto+Mender hike Josef Holzmayr "Pembroke"	Where are we on security features? Kees Cook, Qing Zhao "Ulster & Munster"
10:05	Tracer namespaces Mathieu Desnoyers "Herbert"		A zone-aware cache system for distributed databases Kuankuan Guo "Meeting 1&2"
10:25	Tracer namespaces Mathieu Desnoyers "Herbert"		SSDFS: ZNS SSD ready file system with zero GC overhead Viacheslav Dubeyko "Meeting 1&2"					Open source FPGA NVMe accelerator platform for BPF driven ML processing with Linux/Zephyr Karol Gugala "Pembroke"
10:30	Restoring process trees with child-sub-reapers, nested pid-namespaces and inherit-only resources. Pavel Tikhomirov "Herbert"						Pressure feedback for LRU map types Joe Stringer "Meeting 9"
10:45		Modernizing the kdump dump tools Philipp Rudo "Lansdowne"	Improving data placement for Zoned Linux File systems Hans Holmberg "Meeting 1&2"						Status Report: Broken Dependency Orderings in the Linux Kernel Marco Elver, Paul Heidekrüger "Ulster & Munster"
10:55								Abusing zephyr and meta-zephyr Eilís Ní Fhlannagáin "Pembroke"
11:00	How can we make procfs safe? Aleksa Sarai "Herbert"						Closing the BPF map permission loophole Lorenz Bauer "Meeting 9"
11:05			Object caching on Zoned Storage Hans Holmberg "Meeting 1&2"
11:20								libgpiod V2: New Major Release with a Ton of New Features Bartosz Golaszewski "Pembroke"
11:25			Break
11:30	Break	Break	Break	Break			Break		Break
11:45	cgroup rstat's advanced adoption Michal Koutný "Herbert"		Supporting non-power of 2 zoned devices Pankaj Raghav "Meeting 1&2"
11:50								Break
12:00		Why is devm_kzalloc() harmful and what can we do about it Laurent Pinchart "Lansdowne"		Android MC BoF Karim Yaghmour "Meeting 6"			More CO-RE? Taming the effects of compiler optimizations on BPF tracing Alan Maguire "Meeting 9"	Break	GCC's -fanalyzer and the Linux kernel David Malcolm "Ulster & Munster"
12:05								Linux IEEE 802.15.4 MLME improvements Miquèl Raynal "Pembroke"
12:10	Unprivileged CRIU Younes Manton "Herbert"		Zonefs: Features Roadmap Damien Le Moal "Meeting 1&2"
12:30	Unprivileged CRIU Younes Manton "Herbert"		Zonefs: Features Roadmap Damien Le Moal "Meeting 1&2"				OPENED Tool for Managing eBPF Heterogeneity Palanivel Kodeswaran, Sayandeep Sen, Theophilus Benson "Meeting 9"
12:35	Restartable Sequences: Scaling Per-Core Shared Memory Use in Containers Mathieu Desnoyers "Herbert"		Btrfs RAID on zoned devices Johannes Thumshirn "Meeting 1&2"					All types of wireless in Linux are terrible and why the vendors should feel bad Peter Robinson "Pembroke"
12:45		Current Status and Future Plans of DAMON SeongJae Park "Lansdowne"							Kernel ABI Monitoring and Toolchain Support Matthias Männich, Guillermo E. Martinez, Dodji Seketeli, Giuliano Procida "Ulster & Munster"
13:00	Bringing up FUSE mounts C/R support Alexander Mikhalitsyn "Herbert"		Experiences implementing zonefs support in ZenFS Jorgen Hansen "Meeting 1&2"				The revival of the learning-sync bridgeport flag Alexandra Winter "Meeting 9"	Libre Silicon in IoT Michael Welling "Pembroke"
13:25	Closing session Christian Brauner "Herbert"							Libre Silicon in IoT Michael Welling "Pembroke"
13:30		Lunch		Lunch					Lunch
15:00	CXL MC Welcome and Kickoff Adam Manzanares, Dan Williams "Herbert"	What kernel documentation could be Jonathan Corbet "Lansdowne"	CUPS 2.5 and 3.0 Development Michael Sweet "Meeting 1&2"				The printk saga John Ogness, Thomas Gleixner "Meeting 9"	Frequency-invariance gaps in current kernel Rui Zhang "Pembroke"	Programmable debuggers and the Linux kernel (drgn, GDB+poke) Elena Zannoni, Stephen Brennan, Jose E. Marchesi "Ulster & Munster"
15:05	CXL Type-3 device discovery, configuration in firmware and prepare ACPI tables for kernel usage Sayanta Pattanayak "Herbert"
15:25								Unified structure for thermal zone device registration Rui Zhang "Pembroke"
15:30	CXL Dynamic Capacity MM Navneet Singh, Jonathan Cameron "Herbert"
15:45		Rust Wedson Almeida Filho, Miguel Ojeda "Lansdowne"							CTF Frame in the Linux kernel Indu Bhagat "Ulster & Munster"
15:50								Combining DTPM with the thermal control framework Daniel Lezcano "Pembroke"
15:55	CXL and confidential computing Jérôme Glisse "Herbert"
16:00			Testing and CI for OpenPrinting projects Michael Sweet, Till Kamppeter "Meeting 1&2"
16:05									Toolchain support for objtool in the Linux kernel Josh Poimboeuf "Ulster & Munster"
16:15								Break
16:20	Break							Break
16:25								Energy model accuracy Morten Rasmussen "Pembroke"
16:30		Break	Break	Break		Break	Break		Break
16:45	Design and implementation of Autocaching for CXLSSD Heekwon Park "Herbert"		Restricting access to IPP printers with OAuth2 framework Piotr Pawliczek "Meeting 1&2"
16:50								A generic energy model description Daniel Lezcano "Pembroke"
17:00		Zettalinux: It's Not Too Late To Start Matthew Wilcox "Lansdowne"				systemd BoF Lennart Poettering, Zbigniew Jędrzejewski-Szmek "Meeting 8"	DAMON Beer/Coffee/Tea Chat SeongJae Park "Meeting 9"		Linux Kernel Control-Flow Integrity Support Peter Zijlstra, Sami Tolvanen, Mark Rutland, Joao Moreira "Ulster & Munster"
17:10	CXL hotplug: spec to reality PJ Waskiewicz "Herbert"
17:15								CPUfreq/sched and VM guest workload problems Saravana Kannan "Pembroke"
17:30			Documentation for OpenPrinting projects Aveek Basu, Till Kamppeter "Meeting 1&2"
17:35	Linux plumbing of CXL error reporting Robert Richter, Yazen Ghannam "Herbert"
17:40								Break
17:45		The Maple Tree Liam Howlett "Lansdowne"						Break
17:50								Linux per cpu idle injection Srinivas Pandruvada "Pembroke"
18:00	CXL 2.0+ Emulation With QEMU Status, requirements and roadmap. Jonathan Cameron "Herbert"		Sandboxing/Containerizing alternatives to Snap for Printer Applications or CUPS Valentin Viennot, Michael Sweet, Till Kamppeter "Meeting 1&2"
18:10								Fine grain frequency control with kernel governors Ray Huang "Pembroke"
18:20								Isolation for broken hardware during system suspend Rui Zhang "Pembroke"

Linux Plumbers Conference 2022

12 Sept 2022

13 Sept 2022

14 Sept 2022