On Sat, Jul 17, 2021 at 10:48:49AM -0700, Stephen Hemminger wrote:
> On Sat, 17 Jul 2021 18:08:30 +0100
> Liang Ma <lian...@liangbit.com> wrote:
>
> > From: Liang Ma <lian...@bytedance.com>
> >
> > GCC 6.3.0 has a known bug which related to _mm512_extracti64x4_epi64.
> > Please reference https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82887
> >
> > Some DPDK PMD avx512 version heavily use _mm512_extracti64x4_epi6,
> > which casue building failure with debug buildtype.
> >
> > Therefore, it's helpful to disable avx512 for GCC 6.3.0
> >
> > Bugzilla ID: 717
> > Fixes: e6a6a138919f (net/i40e: add AVX512 vector path)
> > Fixes: 808a17b3c1e6 (net/ice: add Rx AVX512 offload path)
> > Fixes: 4b64ccb328c9 (net/iavf: fix VLAN extraction in AVX512 path)
> > Cc: sta...@dpdk.org
> >
> > Reported-by: Liang Ma <lian...@liangbit.com>
> > Signed-off-by: Liang Ma <lian...@bytedance.com>
>
> What distro still has GCC 6.3.0?
For example Debian 9.x
