No free hugepages reported

[Stephen Hemminger]

On Sun, 31 Mar 2024 16:28:19 +0530
Lokesh Chakka <lvenkatakumarchakka at gmail.com> wrote:

> Hello,
> 
> I've installed dpdk in Ubuntu 23.10 with the command "sudo apt -y install
> dpdk*"
> 
> added  "nodev /mnt/huge hugetlbfs pagesize=1GB 0 0" in /etc/fstab
> added "vm.nr_hugepages=1024" in /etc/sysctl.conf
> 
> rebooted the machine and then did devbind using the following command:
> 
> sudo modprobe vfio-pci && sudo dpdk-devbind.py --bind=vfio-pci 63:00.0
> 63:00.1
> 
> Huge page info is as follows :
> 
> *************************************************
> $ cat /proc/meminfo | grep Huge
> AnonHugePages:      6144 kB
> ShmemHugePages:        0 kB
> FileHugePages:         0 kB
> HugePages_Total:    1024
> HugePages_Free:     1023
> HugePages_Rsvd:        0
> HugePages_Surp:        0
> Hugepagesize:       2048 kB
> Hugetlb:         2097152 kB
> *************************************************

Your hugepages are not setup correctly. The mount is for 1G pages
and the sysctl entry makes 2M pages.

Did you try using the dpdk-hugepages script?