# Running multisite:migrate concurrently fails

**URL:** <https://meta.discourse.org/t/running-multisite-migrate-concurrently-fails/397755>\
**Category:** Bug\
**Created:** [March 5, 2026, 4:27pm UTC](https://meta.discourse.org/t/running-multisite-migrate-concurrently-fails/397755 "2026-03-05T16:27:13Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![tgxworld](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/tgxworld/32/106117_2.png) [@tgxworld](https://meta.discourse.org/u/tgxworld)\
**Post date:** [March 6, 2026, 8:41am UTC](https://meta.discourse.org/t/running-multisite-migrate-concurrently-fails/397755/5 "2026-03-06T08:41:57Z")

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> [@RGJ](#):
>
> `mini_racer-0.19.2/mini_racer_extension.so`

Hmm I see mini\_racer in the backtrace so we can try disposing of mini\_racer context before forking which is the right thing to do either way.

[https://github.com/discourse/discourse/pull/38323](https://github.com/discourse/discourse/pull/38323)

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