[Nix-dev] Hash Collisions

[Kirill Elagin]

First of all, those are not hash collisions, obviously. If those were
SHA-256 collisions, you'd already be famous =).
Those are file collisions, and as you can see, this time the file in
question is /share/man/man2/llistxattr.2.gz, it is provided
by two packages: `man-pages` and `attr`. Since your output doesn't say that
there is an error, those are not errors, just info.
You can safely ignore those collisions.

This module thing is also not an error, you can safely ignore it. Initrd is
trying to load the module just in case, and if it
fails, that's OK the module is just skipped.


--
Кирилл Елагин


On Mon, Apr 7, 2014 at 5:48 PM, Thomas Bereknyei <tomberek at gmail.com> wrote:

> 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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>>
>>
>
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