Hello! > I might be missing something obvious here but, aside from having memory > SHARED which most DPDK apps using hugepages will have anyway, what is > the backward compatibility issues that you see here?
Heh, sorry once again for confusing. Indeed, with hugepages we always get MAP_SHARED. I missed that. So, we indeed need --shared-mem only in addition to --no-huge. Backwards compatibility issue is stated in the description of PATCH 1/4: --- cut --- b. possible ABI break, originally, --no-huge uses anonymous memory instead of file-backed way to create memory. --- cut --- The patch unconditionally changes that to SHARED. That's all. Kind regards, Pavel Fedin Senior Engineer Samsung Electronics Research center Russia