Re: Time travel accident

[Konrad Hinsen <konrad.hinsen@fastmail.net>]

Konrad Hinsen <konrad.hinsen@fastmail.net> writes:

>    building profile with 1 package...
>    ;;; WARNING: loading compiled file /gnu/store/41zsnwsk02549kqb5njd3fadgnmkzww8-guix-module-union/lib/guile/3.0/site-ccache/guix/ui.go failed:
>    ;;; In procedure load-thunk-from-memory: incompatible bytecode kind

I tried to track down why this file remains in the store even after
clearing the "inferiors" cache and doing a gc. Tracking the chain of
referrers, I find:

  /gnu/store/41zsnwsk02549kqb5njd3fadgnmkzww8-guix-module-union
  –> /gnu/store/7r72vknkpnpgp143ckh5kfbg5zan3xsp-guix-command
  –> /gnu/store/cwqaas3mwlx2rhc0ckzmqvygmy7n2s7k-guix-ce35dc8
  –> /gnu/store/2h03nwj2r2jywjk5sk7sxn2hgm979v2m-profile

This last item has two referrers:

 1. /gnu/store/9gfmn1yra7rzavxb9wppqi4lpdvqid8c-inferior-script.scm
 2. itself!

The only items I have encountered so far that have themselves as
referrers are gc roots. But this profile item is not in the list of gc
roots.

The inferior-script item has no referrers at all. It's not a gc root
either. Nevertheless, it is on the output of "guix gc --list-live".
According to my understanding of the store, that shouldn't be possible!

Cheers,
  Konrad.