# Mutex in finalizers

**URL:** <https://discourse.julialang.org/t/mutex-in-finalizers/83781>\
**Category:** General Usage\
**Tags:** garbage-collection\
**Created:** [July 5, 2022, 3:23pm UTC](https://discourse.julialang.org/t/mutex-in-finalizers/83781 "2022-07-05T15:23:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![whatsthecraic](https://avatars.discourse-cdn.com/v4/letter/w/7bcc69/32.png) [@whatsthecraic](https://discourse.julialang.org/u/whatsthecraic)\
**Post date:** [July 5, 2022, 3:23pm UTC](https://discourse.julialang.org/t/mutex-in-finalizers/83781/1 "2022-07-05T15:23:39Z")

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There seem to be a few limitations within the usage of finalizers. In particular, can a finalizer make use of mutexes in multi-threading code?