[RFR]: 8222562: IPv6 only systems fail on setsockopt(IPV6_V6ONLY, 0)

[Martin Buchholz]

On Wed, Apr 17, 2019 at 10:58 AM Arthur Eubanks <aeubanks at google.com> wrote:

> It turns out these patches only apply to a modified kernel which has
> patches to turn off IPv4. This specific patch doesn't make sense to submit
> if the kernel patches are not upstream.
>

I disagree a little.
Google may be decades ahead, but IPV4 being unsupported is a very
reasonable system configuration option that will eventually be part of
every OS.
Most of the time nonstandard kernels can be simulated for testing via
LD_PRELOAD interposing in front of libc, since we never talk to the kernel
directly.
And even if some changes can only be tested with Google's linux kernel
mods, that is still OK IMO.
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