Tock Core Notes 2022-08-26

Attendees:

Updates

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.

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