Requiring Linux 3.2, again

[Florian Weimer]

* Joseph Myers:

> When we discussed moving to Linux 3.2 as the minimum kernel version 
> requirement for glibc over a year ago, concerns were expressed about how 
> this would affect some containers 
> <https://sourceware.org/ml/libc-alpha/2016-02/threads.html#00173> and we 
> only had consensus for a change for architectures other than x86 / x86_64.
>
> Now that more than a year has passed and 2.6.32 has been EOL for a year 
> more, do people still care about running distributions from late 2017 or 
> later on such old kernels, or can we now move to a 3.2 minimum globally?

Parallels/OpenVZ seems to have a 3.10-based kernel now:

| * RHEL7 (3.10+) kernel. 

<https://docs.openvz.org/openvz_readme.webhelp/_what_8217_s_new.html>

I don't know how far this release has propagated to service providers.
But I don't think this should fix glibc support at 2.6.32 anymore for
i386/x86_64.