Re: No i686 kernel: Can we require SSE2 for i686?

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On Tue, Jul 11, 2017 at 9:43 PM, Matthew Miller
<mattdm@xxxxxxxxxxxxxxxxx> wrote:
> On Tue, Jul 11, 2017 at 10:26:03PM +0200, Florian Weimer wrote:
>> I ran into this unannounced change:
>>   https://fedoraproject.org/wiki/Changes/Stop_Building_i686_Kernels
>> If this is accepted, all x86 hardware on which Fedora can run will
>> support SSE2, and we should reflect that in the i686 build flags.
>> How likely is it that this proposal is accepted?  Ideally, we would know
>> this before the mass rebuild so that we can change the compiler flags in
>> redhat-rpm-config.
>
> Currently i686 users are at about 1/6th of x86_64 users, by mirror
> checkins. I don't have an easy way of knowing how many of those i686
> checkins are old releases -- I'll need to ask Smooge to make a custom
> report -- but I think it's fair to guess that it's significantly tilted
> that way. So, taking a SWAG, I'd say maybe 10% of our users would be
> impacted. That's pretty big, but on the other hand if the cost is
> disproportionate -- and having heard from the kernel people about this
> for several years, I think it might be -- it's probably something we
> should do anyway.

It would also remove things like OLPC XO-1 (no idea whether it would
impact the VIA processor in the 1.5) which in some communities use
newer releases but would never ever hit the update servers.
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