[Nix-dev] Hash Collisions

Thomas Bereknyei tomberek at gmail.com
Mon Apr 7 15:48:45 CEST 2014


I have seen these collisions as well, but I do not understand them. They
don't seem to have a detrimental effect on anything.

-Tom


On Mon, Apr 7, 2014 at 4:28 AM, Raahul Kumar <raahul.kumar at gmail.com> wrote:

> I just ran a nixos-rebuild switch --upgrade. I saw a whole bunch of hash
> collisions and some other error messages. How do I make them go away?
>
> collision between
> `/nix/store/fsymx7fx3bxhr2p1gprvzgdxhxyi77b1-kmod-16/sbin/modprobe' and
> `/nix/store/yccdr2mdj8yb7qm505bsam0wqbsqvck3-modprobe/sbin/modprobe' at
> /nix/store/9z6d76pz8rr7gci2n3igh5dqi7ac5xqj-builder.pl line 69.
>
> collision between
> `/nix/store/1qg2wkvvpnkjmdas5k7s0d9rc0ds2cy1-man-pages-3.63/share/man/man2/llistxattr.2.gz'
> and
> `/nix/store/1a08qk5q5vdfv13rwasbf4fqa2s26kx4-attr-2.4.47/share/man/man2/llistxattr.2.gz'
> at /nix/store/9z6d76pz8rr7gci2n3igh5dqi7ac5xqj-builder.pl line 69.
> collision between
> `/nix/store/1qg2wkvvpnkjmdas5k7s0d9rc0ds2cy1-man-pages-3.63/share/man/man2/lremovexattr.2.gz'
> and
> `/nix/store/1a08qk5q5vdfv13rwasbf4fqa2s26kx4-attr-2.4.47/share/man/man2/lremovexattr.2.gz'
> at /nix/store/9z6d76pz8rr7gci2n3igh5dqi7ac5xqj-builder.pl line 69.
> collision between
> `/nix/store/1qg2wkvvpnkjmdas5k7s0d9rc0ds2cy1-man-pages-3.63/share/man/man2/lsetxattr.2.gz'
> and
> `/nix/store/1a08qk5q5vdfv13rwasbf4fqa2s26kx4-attr-2.4.47/share/man/man2/lsetxattr.2.gz'
> at /nix/store/9z6d76pz8rr7gci2n3igh5dqi7ac5xqj-builder.pl line 69.
> collision between
> `/nix/store/26392g24x9d1si4f214ssdlb90nff2d9-network-manager-applet-0.9.8.8/share/glib-2.0/schemas/gschemas.compiled'
> and
> `/nix/store/iql54c5b8xr0q81mx255xivw72fcibmf-gst-plugins-bad-0.10.23/share/glib-2.0/schemas/gschemas.compiled'
> at /nix/store/9z6d76pz8rr7gci2n3igh5dqi7ac5xqj-builder.pl line 69.
>
>
> Second error message
>
> root module: scsi_wait_scan
> modprobe: FATAL: Module scsi_wait_scan not found.
>
> I don't even have any scsi hardware, so how do I make modprobe skip
> loading it.
> Aloha,
> RK.
>
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