With gcc 6.3.0, I find this app functioning w/o crash.
Did disabling gcc optimization help ? (set EXTRA_CFLAGS='-O0' before compile).
Regards, Gowrishankar On Thursday 06 April 2017 02:34 PM, Rahul Lakkireddy wrote:
Hi, For netmap_compat bridge application on Power8, in netmap_regif function, the assignment to nmif->ring_ofs[i] is not getting reflected immediately. As a result, the subsequent call to netmap_ring_setup ends up writing data at wrong offset. This causes segfault in the app. If we print the nmif->ring_ofs[i] after assignment, then, we see the correct offset and application starts fine. So, probably, some kind of barrier or mechanism to flush write is required on Power8? BTW, this was tried with ToT dpdk git tree on RHEL 7.3 having below gcc version: gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC) Thanks, Rahul
