Le 27/07/16 à 19:28, Kosyrev Serge a écrit : > zimbatm <[email protected]> writes: >> Is it possible some of them are kept from the bootstrap? What you need is a >> tool that constructs the dependency tree(s). > The key question is -- what this tool would use as source of > information? > > Let me repeat the steps: > > 1. find out the glibcs: > > [deepfire@andromedae:~]$ nix-analyze-rootlike glibc # sources > at [1] > ; analyzing "/nix/store/*-glibc-*" (minus noise) > referrers | disc | correlation to profile > closure direct | size | user system > 1397 1062 | 22M | 113 25 > /nix/store/dad9vxniabwzidvvxfsfj6vb0xncsbbb-glibc-2.23 > 210 165 | 22M | 0 0 > /nix/store/phffgv3pwihmpdyk8xsz3wv8ydysch8w-glibc-2.23 > 159 22 | 34M | 0 0 > /nix/store/i0l0jjkk82wsqz9z5yhg35iy78bjq684-glibc-2.21 > 5 5 | 22M | 0 0 > /nix/store/62n981f02b56wjqfdq00pq706k11xz4d-glibc-2.21 > > 2. pick an easy-to-analyze anomaly: > > [deepfire@andromedae:~]$ nix-store -q --referrers-closure > /nix/store/62n981f02b56wjqfdq00pq706k11xz4d-glibc-2.21 > /nix/store/62n981f02b56wjqfdq00pq706k11xz4d-glibc-2.21 > /nix/store/5m6i1h71xp6r7k381hrsv5qwn3s6b93h-libXau-1.0.8 > /nix/store/kx1l6yis70h9sly7cs4b95jq0j8yxjqr-libXdmcp-1.1.2 > /nix/store/bxsi9xrrfc0qw3ndys83rppwqxbn33ma-libxcb-1.11.1 > /nix/store/62bmpi8kll9kj8il89kdaddvzib3r4pm-libX11-1.6.3 > > What would the tool help with? That's all the information the Nix store has. > > Again, it seems a contradiction to me: > > - the referrer closure for the rogue glibc doesn't touch anything > root-related > - yet the GC doesn't collect it > > So, can anyone confirm that it indeed is a bug? > No, it is probably not a bug.
If you think the path is useless, you can remove it from the store with `nix-store --delete`. Most probably, nix-store will refuse to do that, as the derivation is "live". This means that while the derivation is not required by some root, it is kept to satisfy other functionalities of nix. In some cases it is helpful to keep access to build inputs like gcc, even if they are not used by the running system. Please give us the content of your /etc/nix/nix.conf. You may also find http://nixos.org/nix/manual/#conf-gc-keep-outputs a good introduction. -- Layus. PS: if you want to dig deeper, try `grep /nix/store/62n981f02b56wjqfdq00pq706k11xz4d-glibc-2.21 /nix/store/*.drv`, you may get something. _______________________________________________ nix-dev mailing list [email protected] http://lists.science.uu.nl/mailman/listinfo/nix-dev
