Re: [dpdk-dev] [PATCH] buildtools: Check GCC version to avoid GCC 6.3.0 avx512 bug

2021-07-19 Thread Liang Ma
On Mon, Jul 19, 2021 at 09:38:14AM +0100, Bruce Richardson wrote: > On Sun, Jul 18, 2021 at 10:33:15AM +0100, Liang Ma wrote: > > On Sat, Jul 17, 2021 at 06:08:04PM -0700, Stephen Hemminger wrote: > > > On Sat, 17 Jul 2021 23:13:04 +0100 > > > Liang Ma wrote: > > > > > > > On Sat, Jul 17, 2021 at

Re: [dpdk-dev] [PATCH] buildtools: Check GCC version to avoid GCC 6.3.0 avx512 bug

2021-07-19 Thread Bruce Richardson
On Sun, Jul 18, 2021 at 10:33:15AM +0100, Liang Ma wrote: > On Sat, Jul 17, 2021 at 06:08:04PM -0700, Stephen Hemminger wrote: > > On Sat, 17 Jul 2021 23:13:04 +0100 > > Liang Ma wrote: > > > > > On Sat, Jul 17, 2021 at 10:48:49AM -0700, Stephen Hemminger wrote: > > > > On Sat, 17 Jul 2021 18:08:

Re: [dpdk-dev] [PATCH] buildtools: Check GCC version to avoid GCC 6.3.0 avx512 bug

2021-07-18 Thread Liang Ma
On Sat, Jul 17, 2021 at 06:08:04PM -0700, Stephen Hemminger wrote: > On Sat, 17 Jul 2021 23:13:04 +0100 > Liang Ma wrote: > > > On Sat, Jul 17, 2021 at 10:48:49AM -0700, Stephen Hemminger wrote: > > > On Sat, 17 Jul 2021 18:08:30 +0100 > > > Liang Ma wrote: > > > > > > > From: Liang Ma > > >

Re: [dpdk-dev] [PATCH] buildtools: Check GCC version to avoid GCC 6.3.0 avx512 bug

2021-07-17 Thread Stephen Hemminger
On Sat, 17 Jul 2021 23:13:04 +0100 Liang Ma wrote: > On Sat, Jul 17, 2021 at 10:48:49AM -0700, Stephen Hemminger wrote: > > On Sat, 17 Jul 2021 18:08:30 +0100 > > Liang Ma wrote: > > > > > From: Liang Ma > > > > > > GCC 6.3.0 has a known bug which related to _mm512_extracti64x4_epi64. > > >

Re: [dpdk-dev] [PATCH] buildtools: Check GCC version to avoid GCC 6.3.0 avx512 bug

2021-07-17 Thread Liang Ma
On Sat, Jul 17, 2021 at 10:48:49AM -0700, Stephen Hemminger wrote: > On Sat, 17 Jul 2021 18:08:30 +0100 > Liang Ma wrote: > > > From: Liang Ma > > > > 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 >

Re: [dpdk-dev] [PATCH] buildtools: Check GCC version to avoid GCC 6.3.0 avx512 bug

2021-07-17 Thread Stephen Hemminger
On Sat, 17 Jul 2021 18:08:30 +0100 Liang Ma wrote: > From: Liang Ma > > 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 cas

[dpdk-dev] [PATCH] buildtools: Check GCC version to avoid GCC 6.3.0 avx512 bug

2021-07-17 Thread Liang Ma
From: Liang Ma 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