# FAQ ## What happens if I interrupt the Erigon synchronization? Interrupting the synchronization process is not recommended, but it doesn't cause any major problems. Erigon will resume synchronization after restart. Anyhow, in some rare cases the database could get corrupted. ## How to get diagnostic for bug report? * Get stack trace: `kill -SIGUSR1 `, get trace and stop: `kill -6 ` * Get CPU profiling: add `--pprof flag` run `go tool pprof -png http://127.0.0.1:6060/debug/pprof/profile\?seconds\=20 > cpu.png` * Get RAM profiling: add `--pprof flag` run `go tool pprof -inuse_space -png http://127.0.0.1:6060/debug/pprof/heap > mem.png` ## How to run local devnet? You can find a detailed explanation [here](https://docs.erigon.tech/erigon/v2/configure-erigon#dev-chain). ## Docker permissions error Docker uses user Erigon with UID/GID 1000 (for security reasons). You can see this user being created in the Dockerfile. Can fix by giving a host's user ownership of the folder, where the host's user UID/GID is the same as the docker's user UID/GID (1000). More details in this [post](https://www.fullstaq.com/knowledge-hub/blogs/docker-and-the-host-filesystem-owner-matching-problem).