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bug#30537: glibc 2.26 refuses to run on CentOS 6.8

From: Ricardo Wurmus
Subject: bug#30537: glibc 2.26 refuses to run on CentOS 6.8
Date: Tue, 20 Feb 2018 18:55:48 +0100
User-agent: mu4e 1.0; emacs 25.3.1

Ricardo Wurmus <address@hidden> writes:

> Leo Famulari <address@hidden> writes:
>>> For future updates to the glibc we would have to re-evaluate if the
>>> current RHEL 6.x kernel still supports all features the glibc expects,
>>> and decide once more if we can justify patching glibc to allow that one
>>> particular kernel version.
>> Yes... and this will probably continue for many years. But I do think we
>> should do something to work around the issue now, and reevaluate our
>> solution when the pressure is off.
>> It would be nice if the graft only applied to x86_64-linux, but I've
>> never considered if that is easy to do or not.
> I don’t know if we can graft a package only for a single architecture.
> At least at the time of ungrafting we could apply the patch only on
> x86_64 (and only rebuild the world for that architecture).
> FWIW: I’ve applied this patch to the installation at the MDC and it
> works fine.  The biggest downside here is the slowness of grafts over
> NFS (I still need to update the protocol to NFS 4.1) and the many lines
> of output that are amplified by communicating with a remote daemon.
> Other than that I’m happy that this crisis could be temporarily averted.
> I’d like to have this in master, though, so that people can run “guix
> pull” again and actually get working software.

I should note that now every Guix command first prints this:

  GC Warning: pthread_getattr_np or pthread_attr_getstack failed for main thread

I suspect that this is not good.  Guix was built with the grafted glibc.


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