On Mon, Jun 4, 2018 at 7:20 AM, Florian Weimer <fwei...@redhat.com> wrote:
> = Proposed System Wide Change: i686 Is For x86-64 = > https://fedoraproject.org/wiki/Changes/i686_Is_For_x86-64 > > > Owner(s): > * Florian Weimer <fweimer at redhat dot com> > > > Fedora builds its i686 packages for use on x86-64 systems as multi-lib > RPMs. > > > > == Detailed description == > Currently, the i686 RPM packages are built in such a way that they are > compatible with very old i686 systems, such as the Pentium III. The > only addition over the i686/Pentium Pro baseline is a requirement to > support long NOPs, for Intel CET. However, the majority of > installations of i686 packages is for use on x86_64 systems, as > multi-lib RPMs. Furthermore, there are reports that the i686 kernel > does not run stable on old hardware which is not x86-64-capable ( > https://lists.fedoraproject.org/archives/list/x...@lists.fedo > raproject.org/thread/ZHV6I4IEO7GRYAZ4TUMO5VH2ZHLCNJZQ/ > ). > This proposal suggests to accept this reality and build the i686 > packages in such a way that they require the ISA level of (early) > x86-64 CPUs. > Would you please provide more detail on what problem or problems we are trying to solve? Is this purely for efficiency reasons? jeff
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