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dkg: private key lock file not deleted properly on successful run #2258

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gsora opened this issue May 31, 2023 · 1 comment
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dkg: private key lock file not deleted properly on successful run #2258

gsora opened this issue May 31, 2023 · 1 comment
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gsora commented May 31, 2023

馃悶 Bug Report

Description

The goroutine that takes care of deleting the private key lock file when the context is cancelled might not be executed because the Go scheduler didn't schedule it for execution before the main one is.

馃敩 Minimal Reproduction

This issue doesn't reproduce 100% of the times, because it's a concurrency issue.

Run a dkg, see if .charon/charon-enr-private-key.lock has been deleted.
@gsora gsora added the bug Something isn't working label May 31, 2023
@gsora gsora self-assigned this May 31, 2023
@github-actions github-actions bot added the protocol Protocol Team tickets label May 31, 2023
@gsora gsora mentioned this issue May 31, 2023
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obol-bulldozer bot pushed a commit that referenced this issue Jun 1, 2023
@gsora
dkg: sync privkeylock before exiting (#2257)
881227e 
Block `dkg` exit until `privkeylock.Run()` enclosing goroutine exits, ensuring that the private key lock file is always deleted.

`Run()` is supposed to be executed in a goroutine, and since we can't control the scheduler it might be scheduled *after* the `main` one exits, leading to the `ctx.Done()` code path to sometimes never be executed.

category: bug
ticket: #2258
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gsora commented Jun 1, 2023

Closed by #2257.

@gsora gsora closed this as completed Jun 1, 2023
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