Joe Gordon

I don't have an example of how to reproduce, but we do have some very large dockerfiles (several hundred RUN commands, but in a multi stage docker build so the...

just checked, doesn't look like we are. I checked based on https://docs.docker.com/build/cache/backends/

@tonistiigi hope this helps: Attached are two dumps from running `debug/pprof/goroutine?debug=2` as per https://github.com/moby/buildkit/blob/master/.github/issue_reporting_guide.md#reporting-deadlock [dump-2.txt](https://github.com/moby/buildkit/files/15408347/dump-2.txt) [dump.txt](https://github.com/moby/buildkit/files/15408348/dump.txt)

Thank you @AkihiroSuda!

Thank you for the fix unfortunately we are still seeing the same issue with the latest release https://github.com/docker/buildx/releases/tag/v0.15.1 should have buildkit 0.14.1 and buildkit 0.14 has this fix https://github.com/moby/buildkit/releases/tag/v0.14.0 ```ii...