Hi Ed,
On 05.04.2025 01:24, Lombardo, Ed wrote:
Hi,
I tried to pass into dpdk_eal_init() the argument
--socket-mem=2048,2048” and I get segmentation error when strsplit()
function is called
arg_num = rte_strsplit(strval, len,
arg, RTE_MAX_NUMA_NODES, ',');
Please forgive me for the stupid question:
"strval" points to a mutable buffer, like "char strval[] = "2048,2048",
not "char *strval = "2048,2048"?
If I pass “--socket_mem=2048”, --socket-mem=2048”, rte_eal_init() does
not complain.
Not sure if this would ensure both CPU sockets will host 2-1G
hugepages? I suspect it doesn’t because I only see to rtemap_0 and
rtemap_1 in /mnt/huge directory. I think I should see four total.
# /opt/dpdk/dpdk-hugepages.py -s
Node Pages Size Total
0 2 1Gb 2Gb
1 2 1Gb 2Gb
I don’t know if I should believe the above output showing 2Gb on Numa
Nodes 0 and 1.
You are correct, --socket-mem=2048 allocates 2048 MB total, spreading
between nodes.
