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Tock Core Notes 2022-08-26

doc/wg/core/notes/core-notes-2022-08-26.md

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Tock Core Notes 2022-08-26

Attendees:

  • Amit Levy
  • Branden Ghena
  • Brad Campbell
  • Johnathan Van Why
  • Arun Thomas
  • Alexandru Radovici
  • Chris Frantz
  • Pat Pannuto
  • Alyssa Haroldson
  • Jett Rink
  • Leon Schuermann
  • Hudson Ayers

Updates

  • Alex: oxidos.io funding round secured to use Tock in automotive space.
  • Need a blog post!

Tock 2.1 Testing

  • https://github.com/tock/tock/issues/3116#issuecomment-1209792251
  • Brad: We've done a lot of testing, I say we go forward with the release soon.
  • Alex: STM almost finished. RPi tomorrow. Will be ready.
  • Other Alex will test i.mx board.
  • Branden: Let's make a deadline to finish testing and move on with release.
  • Pat: redboard problem.
  • Brad: should create 2.2 issue now. Goals: update cortex-m syscall handling and AppID.
  • Branden: Other PRs on 2.1 to discuss? They seem pretty straightforward.
  • Brad: Need release notes, possibly changelog.md.
  • Leon: Happy to start that, would like to see if anything is missed.
  • Jett: Mark major breaking change in changelog.md.
  • Branden/Amit/Brad: September 1, 2022 release goal.

redboard Problem

  • https://github.com/tock/tock/pull/3139
  • Pat: Technical debt from context switching in cortex-m. Assumptions that things would happened one at a time. Nested events and floating point violate these assumptions.
  • We are checking link register, should be checking status register.
  • Current summary: we need to re-write cortex-m bottom half handling, should fix this issue.
  • Amit: Been talking about this re-write for a while, makes sense to do this change.
  • Probably best thing to do is go ahead with 2.1, focus on re-factoring this for next release, and let this board be broken for this release.
  • Pat: could apply PR for 2.1 which is a workaround hack. This PR still leads to stack corruption but that corruption doesn't matter.
  • Brad: agree with merging PR. Should open revert PR now.
  • Alyssa: add comment indicating hack needs to be reverted.
  • Hudson + Amit: agree

Tock Foundation

  • Amit: 501(c)3 very difficult.
  • Alternatives, just as 501(c)6 should be fine.
  • Technically, could accept money now through Open Collective.