On Jun 29, 2015, at 3:19 AM, Thomas Monjalon <thomas.monjalon at 6wind.com> wrote: > There is no such bug with my compiler: > clang version 3.6.1 (tags/RELEASE_361/final) > Target: x86_64-unknown-linux-gnu > > Matthew, which version are you using?
Hi Thomas and Roman, It seems to happen if I have set -mavx in CFLAGS with clang 1:3.4-1ubuntu3. I get a different issue that only shows up at runtime in clang 3.6.2-svn240577-1~exp1: ERROR: This system does not support "FSGSBASE". Please check that RTE_MACHINE is set correctly. It appears I probably need to learn how to do a better job on my EXTRA_CFLAGS. Do we have some recommendations what should be used on the different Intel CPUs to avoid build issues but still get the best performance? This would help a lot. Matthew.