Hi, I have a test environment based on RHEL VMs that are run from a hypervisor that I have no administrative or physical access to. My only administrative control is by ssh into the running VMs over the network where at least I have sudo access.
When I run my DPDK-20.11 application, it crashes because hugepages are not configured. So, I allocated 2MB hugepages at runtime but the app still crashes because there are no 1GB hugepages which on RHEL can only be set at boot time. I found instructions for setting RHEL boot parameters that will allocate 1GB hugepages at boot time, but I have not tried it because I am concerned that if I mess something up and reboot the VM it may never come back. So, I am wondering if DPDK-20.11 supports a "semi-huge" mode of operation that allows it to run with only 2MB hugepages configured and no 1GB pages? If so, what would be the way to set that up? I have also tried invoking DPDK with "--no-huge". My application starts fine, but at runtime it crashes out of a DPDK API call while processing an mbuf for a received packet. I can give more details about this if there is a chance it could be debugged - or, is "--no-huge" problematic in general? Thanks - Fred
