Hi Ricardo,

On Thu, 22 Feb 2018 14:17:53 +0100
Ricardo Wurmus <ricardo.wur...@mdc-berlin.de> wrote:

> Hi Guix,
> for a few days now I have been testing the glibc graft to make
> software work on the cluster running CentOS 6.8 (with a heavily
> patched Linux that has the nominal version 2.6.32).
> The graft seems to work fine (with the exception of a Guile GC
> warning I get when running Guix), except when using “guix environment
> -l”.


> 2.) How could the *old* glibc end up in the environment?  I expected
> the grafted glibc, which comes with a patch to avoid “FATAL: kernel
> too old”.

I don't know if this is related, but in the last days/weeks I noticed this:

We all know that there are sometimes those collisions:

warning: collision encountered:
warning: arbitrarily choosing 

OK, that's fine, they are "normal". When I did a 

guix environment ... (something without the "-l")

I got hundreds of such collisions in the form of


i.e. only the hash was different. I can't remember the package/commmands nor 
can I
reproduce it right now. But I also had the idea that there was a graft and its 
version in the environment.

I will have an eye on it and post the details, if I stumple upon it again.


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