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Reviewed-on: #15
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74
docs/events/meeting-notes/2024-02-09.md
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docs/events/meeting-notes/2024-02-09.md
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# SIG/AltArch meeting 2024-02-09
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## Attendees
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* Neil Hanlon
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* Sherif Nagy
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* Brian Clemens
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* Stack
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## Follow Ups
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* Raspberry Pi5
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* need 16k page kernel variant created
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```
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--# diff config-6.1.0-rpi7-rpi-2712 config-6.1.0-rpi7-rpi-v8
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31c31
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< CONFIG_LOCALVERSION="-v8-16k"
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---
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> CONFIG_LOCALVERSION="-v8"
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270,275c270,275
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< CONFIG_ARM64_PAGE_SHIFT=14
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< CONFIG_ARM64_CONT_PTE_SHIFT=7
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< CONFIG_ARM64_CONT_PMD_SHIFT=5
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< CONFIG_ARCH_MMAP_RND_BITS_MIN=16
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< CONFIG_ARCH_MMAP_RND_BITS_MAX=30
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< CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=9
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---
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> CONFIG_ARM64_PAGE_SHIFT=12
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> CONFIG_ARM64_CONT_PTE_SHIFT=4
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> CONFIG_ARM64_CONT_PMD_SHIFT=4
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> CONFIG_ARCH_MMAP_RND_BITS_MIN=18
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> CONFIG_ARCH_MMAP_RND_BITS_MAX=24
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> CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
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391,392c391,392
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< # CONFIG_ARM64_4K_PAGES is not set
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< CONFIG_ARM64_16K_PAGES=y
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---
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> CONFIG_ARM64_4K_PAGES=y
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> # CONFIG_ARM64_16K_PAGES is not set
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394,395c394
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< # CONFIG_ARM64_VA_BITS_36 is not set
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< CONFIG_ARM64_VA_BITS_47=y
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---
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> CONFIG_ARM64_VA_BITS_39=y
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397c396
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< CONFIG_ARM64_VA_BITS=47
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---
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> CONFIG_ARM64_VA_BITS=39
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422c421
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< CONFIG_ARCH_FORCE_MAX_ORDER=12
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---
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> CONFIG_ARCH_FORCE_MAX_ORDER=11
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889a889
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> CONFIG_ARCH_WANTS_THP_SWAP=y
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```
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* Post-setup changes required to select which one user should boot
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* i.e., change initramfs / kernel lines to -v8 in config.txt / config-kernel.txt
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* https://chat.rockylinux.org/rocky-linux/pl/e7h9sqcb4pdnpqpwah3wcjxjac
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* Neil and Sherif spoke to risc-v folks at FOSDEM/SOOCon24
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* No exact timeline, but hoping to get leads on hardware to use
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## Open Floor
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* Stack: the wiki looks abandoned because the index page is empty/stubbed
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## Action Items
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* Follow up on Orange Pi5
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* Follow up on Libre boards
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* Create variant for 16k kernel
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* Kernel Packer for altarch
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* Actually put content on wiki index/landing page so it doesn't look abandoned
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59
docs/events/meeting-notes/2024-02-23.md
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docs/events/meeting-notes/2024-02-23.md
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# SIG/AltArch meeting 2024-02-23
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## Attendees
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* Neil Hanlon
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* Sherif Nagy
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* Brian Clemens
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* Stack
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* Alan Sill
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## Follow Ups
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* SBC Support - We're close on a lot of the boards we aim to support (Orange Pi, Libre boards, Rock Pro, RPi5, etc)
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* Raspberry Pi5
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* Needs 16k kernel variant
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* arm-trusted-firmware in staging for 8 and 9
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* please test, adds support for some SBCs we target
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* RISC-V - Communications ongoing with RISC-V foundation for firmware
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* What else do we want aside from what they may be able to give us?
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## Open Floor
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* Alan has Turing Pi boards to run his Pis--would be nice to be able to test these
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* Jeff Geerling did a video recently on Turing Pi cluster board
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* "little clusters" -- just shared NFS, works ok. needs to be NVME because of i/o thrashing, though
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* Stack: there has been a lot of interest in SBCs in Rocky the past few months
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* Would be good to have a plan to convert interested parties to contributors
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* we have a lot of SBC $$$ to spend on HW for folks
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* Roadmap & Status -- What do we support, who supports it, what works/doesn't work
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* https://git.resf.org/testing/SBC-progress-tracking
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* Risc-V
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* Alan has [Lichee Pi 4a](https://wiki.sipeed.com/hardware/en/lichee/th1520/lc4a/lc4a.html) | https://sipeed.com/licheepi4a
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* Should we include non-altarch (x86_64) SBCs in our list of what works?
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* They work out of the box (for the most part), so, let's just include them
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* https://radxa.com/products/x/x2l/#techspec - GPIO via a Pico
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* Alan wants to get this running under Rocky at some point
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* also looking at https://www.mixtile.com/cluster-box/
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* Stack: Grace Hopper?
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* seems to be only debian from NVidia
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* Brian: Yoshi (CIQ) may have a contact that knows more information about Grace Hopper and Rocky
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* Sherif: Intel GPU update
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* Met with them through HPC SIG (Jeremy)
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* DKMS version first for testing
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* Later: signed for secureboot and installable as kmod package (kernel SIG)
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* User tools in HPC SIG
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* NVIDIA -- maybe we can talk to them after we show this working well, collaborate
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* Needs legal review and sign-off from NVIDIA
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* many questions about this... e.g. How can we trust signing a proprietary blob for SB signing?
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* Stack's SBC tower: https://52pi.com/products/52pi-rack-tower-acrylic-cluster-case-for-raspberry-pi-12-layer?_pos=21&_sid=39b8f5ea0&_ss=r
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## Action Items
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* Neil to reach out to Equinix regarding arm hw for altarch
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* Neil to reply to RV folks
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* Neil to look into wiki content population
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* Neil to file ticket to investigate kernel packer to repack upstream RPi kernel
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* Neil to work on SBC Kernel variant config in KernelPacker
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* Sherif to work on Raspberry Pi kernel variants
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