# Spawning a fiber will disable effect handlers installed after main loop

**URL:** <https://discuss.ocaml.org/t/spawning-a-fiber-will-disable-effect-handlers-installed-after-main-loop/13710>\
**Category:** Learning\
**Tags:** effects, eio\
**Created:** [December 23, 2023, 2:50pm UTC](https://discuss.ocaml.org/t/spawning-a-fiber-will-disable-effect-handlers-installed-after-main-loop/13710 "2023-12-23T14:50:16Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![talex5](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ocaml.org/talex5/32/353_2.png) [@talex5](https://discuss.ocaml.org/u/talex5)\
**Post date:** [December 23, 2023, 3:02pm UTC](https://discuss.ocaml.org/t/spawning-a-fiber-will-disable-effect-handlers-installed-after-main-loop/13710/2 "2023-12-23T15:02:26Z")

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There’s some related discussion here: [How to compose effect handlers with Eio - #20 by wokalski](https://discuss.ocaml.org/t/how-to-compose-effect-handlers-with-eio/11279/20)

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_[View the full topic](https://discuss.ocaml.org/t/spawning-a-fiber-will-disable-effect-handlers-installed-after-main-loop/13710)._