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[BUG] intermittent leveldb iterator crash #992

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markspanbroek opened this issue Nov 13, 2024 · 3 comments
Open

[BUG] intermittent leveldb iterator crash #992

markspanbroek opened this issue Nov 13, 2024 · 3 comments
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@markspanbroek
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Observed this crash several times while running the unit tests on windows in the CI:

Assertion failed: dummy_versions_.next_ == &dummy_versions_

A quick search seems to indicate that this is likely caused by a leveldb iterator not being properly closed.

Example CI run:
https://github.com/codex-storage/nim-codex/actions/runs/11731259014/job/32682716194?pr=988#step:4:946
@markspanbroek markspanbroek added the bug Something isn't working label Nov 13, 2024
@benbierens
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I'm looking into this now.

@benbierens
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While running the test a million times:
Image

@benbierens
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Also Image

How sure are we there's not an async issue going on here, there's unrelated to leveldb?
I've seen the leveldb error a few times (now I can't reproduce of course) but each time it showed up right after test availability size is reduced by request slot size when fully downloaded passes successfully.
Investigation continues...

@benbierens benbierens mentioned this issue Nov 21, 2024
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@markspanbroek @benbierens