This was originally found in haskell/haskell-language-server#3072

In lsp, there is a debug log, printing response body:

And in HLS, our logger sends a copy of log to LSP client:
https://github.com/haskell/haskell-language-server/blob/347a7187f20242540926b9927c59a45b18798c67/exe/Main.hs#L72-L82

Then it goes into infinite recursion. A lot of logs like below are produced, and finally OOM on a machine with 64GB RAM.