v0.7.17 broke multi-threaded CI of Trixi.jl

[ranocha]

See some discussion in trixi-framework/Trixi.jl#2408. The only change in behavior in Polyester.jl between v0.7.16 and v0.7.17 is due to #154.

[efaulhaber]

Do you have a link to a failed CI run? I'm surprised that #154 causes issues, as it only removed errors in reset_threads!. The main change was JuliaSIMD/ThreadingUtilities.jl#54.

[ranocha]

https://github.com/trixi-framework/Trixi.jl/actions/runs/15118677295/job/42495708730?pr=2406, https://github.com/trixi-framework/Trixi.jl/actions/runs/15118677295/job/42495708741?pr=2406, https://github.com/trixi-framework/Trixi.jl/actions/runs/15118677295/job/42495708733?pr=2406, and https://github.com/trixi-framework/Trixi.jl/actions/runs/15118677295/job/42495708710?pr=2406 for example

[ranocha]

CI passes with the old version of Polyester.jl in trixi-framework/Trixi.jl#2408

[efaulhaber]

That's odd. It just says "operation canceled", as if it was interrupted by GitHub somehow.

[ranocha]

Yes, nothing happened, and the jobs were canceled after 6 hours (the usual limit of GitHub actions). This occurred for all CI runs I examined.

[efaulhaber]

Ah, now I understand. So freezing threads is the problem then.

[efaulhaber]

Apparently inside reset_threads!.

[efaulhaber]

Can you please try this branch?
https://github.com/efaulhaber/Polyester.jl/tree/reset-if-task-failed

[ranocha]

I created trixi-framework/Trixi.jl#2411 to test your fix

[efaulhaber]

I prepared a proper fix in #160 and JuliaSIMD/ThreadingUtilities.jl#58.

[ranocha]

Thanks! Let's wait for the other PR to be merged first.