Hi Dmitry, Your observation is good! But I have the /usr/lib/dpdk/pmds-24.0 in the LD_LIBRARY_PATH but since the host does not have a match glibc, I have to run it with ld-linux-x86-64.so.2 specifying LD_LIBRARY_PATH with equivalent --library-path.
Here is the entire cmd I use to run testpmd: sudo /lib/ld-linux-x86-64.so.2 --library-path /lib:/usr/lib:/usr/lib/dpdk:/usr/lib/dpdk/pmds-24.0:/ciena/lib /usr/bin/dpdk-testpmd -c 000F -n 2 --log-level=eal,8 --no-huge -m 4095 --no-pci -- -i --nb-cores=2 --total-num-mbufs=2048 Despite the /lib/dpdk/pmds-24.0 libs being visible, the rte_eal_init does not load any of these shared libs while it does when I run it inside the VM. Would appreciate if you can think of any reasons rte_eal_init does not trigger loading those shared libs in the host run instance. Regards, Mehrdad -----Original Message----- From: Dmitry Kozlyuk <dmitry.kozl...@gmail.com> Sent: December 4, 2024 3:51 PM To: Alipour, Mehrdad <malip...@ciena.com> Cc: dev@dpdk.org Subject: [**EXTERNAL**] Re: rte_mempool_create fails with --no-huge Hi Alipour, It looks suspicious that on the host you don't see logs about loaded drivers, like these ones that you see inside the VM: > 2024-12-03 19:32:36.642042 EAL: open shared lib > /usr/lib/dpdk/pmds-24.0/librte_net_fm10k.so.24.0 > 2024-12-03 19:32:36.642266 EAL: pmd.net.fm10k.init log level changed > from disabled to notice > 2024-12-03 19:32:36.642279 EAL: pmd.net.fm10k.driver log level > changed from disabled to notice > 2024-12-03 19:32:36.642285 EAL: open shared lib > /usr/lib/dpdk/pmds-24.0/librte_net_qdma.so.24.0 > 2024-12-03 19:32:36.642581 EAL: open shared lib > /usr/lib/dpdk/pmds-24.0/librte_net_vhost.so > 2024-12-03 19:32:36.643201 EAL: lib.dmadev log level changed from > disabled to info > 2024-12-03 19:32:36.643264 EAL: Registered [vdpa] device class. Can it be that DPDK on the host does not see shared libraries, e.g. it is not installed in the system and LD_LIBRARY_PATH is not set to shared library location? Then mempool driver would just not be loaded to create a mempool.
