> On Feb 6, 2018, at 12:38 PM, Huertas García, Víctor <vhuer...@indra.es> wrote: > > Hi all, > > > This is my first post in this mailing list. I am glad to become a member of > this community. > > > I am a newbie using DPDK and I have tried to compile and execute an example > app called "l3fwd-acl". > > > The DPDK command is DPDK_Test -c 0xf0 -n 2 --socket-mem 64
ran this command as root or used sudo correct? > > but the application tells me the following: > > > EAL: Detected 8 lcore(s) > EAL: Probing VFIO support... > EAL: VFIO support initialized > EAL: Cannot obtain physical addresses: Success. Only vfio will function. > EAL: Not enough memory available on socket 0! Requested: 64MB, available: 0MB > EAL: FATAL: Cannot init memory > > EAL: Cannot init memory > > EAL: Error - exiting with code: 1 > Cause: Invalid EAL parameters > > > > I don't know what else I can do to make this app run as I have reserved > hugepages as the user guide tells as well as mounted the /mnt/huge folder. > > > cat /proc/meminfo | grep Huge > AnonHugePages: 520192 kB > HugePages_Total: 64 > HugePages_Free: 64 > HugePages_Rsvd: 0 > HugePages_Surp: 0 > Hugepagesize: 2048 kB I assume you added an entry into /etc/sysctl.conf and rebooted, just to make sure the huge pages are allocated early in the boot process. I use 1G huge pages and I assume you are using 2M huge pages vm.nr_hugepages=32 # 32x2M is 64M I also disable randomize_va_space, which is not required for those tests. kernel.randomize_va_space=1 > > > My machine is has this topology (only one Numa node is detected): > > > udo usertools/cpu_layout.py > [sudo] password for root: > ====================================================================== > Core and Socket Information (as reported by '/sys/devices/system/cpu') > ====================================================================== > > cores = [0, 1, 2, 3] > sockets = [0, 1] > > Socket 0 Socket 1 > -------- -------- > Core 0 [0] [4] > Core 1 [1] [5] > Core 2 [2] [6] > Core 3 [3] [7] The CPU layout shows two sockets and normally that means 2 numa node. I would change the command above —-socket-mem 32,32 (note: two ‘-‘ in front) this command gives 32M socket 0 and 32M to socket 1 I have seen some funny memory configs, with huge pages if you do not use /etc/sysctl.conf and reboot. Sometimes memory will be allocated to one socket. I hope that helps. > > > > I have compiled the application using Eclipse IDE (g++) under an OpenSuse > 42.3 Leap. Everything seemed to compile well and vfio-pci driver could be > loaded on two NICs. > > So everything seems to be OK but I am totally stuck on this EAL > initialization problem. > > > I would appreciate it if some expert could shed a light on my problem. > > > Thanks a lot!! > > > > ________________________________ > > Este correo electrónico y, en su caso, cualquier fichero anexo al mismo, > contiene información de carácter confidencial exclusivamente dirigida a su > destinatario o destinatarios. Si no es vd. el destinatario indicado, queda > notificado que la lectura, utilización, divulgación y/o copia sin > autorización está prohibida en virtud de la legislación vigente. En el caso > de haber recibido este correo electrónico por error, se ruega notificar > inmediatamente esta circunstancia mediante reenvío a la dirección electrónica > del remitente. > Evite imprimir este mensaje si no es estrictamente necesario. > > This email and any file attached to it (when applicable) contain(s) > confidential information that is exclusively addressed to its recipient(s). > If you are not the indicated recipient, you are informed that reading, using, > disseminating and/or copying it without authorisation is forbidden in > accordance with the legislation in effect. If you have received this email by > mistake, please immediately notify the sender of the situation by resending > it to their email address. > Avoid printing this message if it is not absolutely necessary. Regards, Keith
