2021-09-10 10:43 (UTC+0530), animesh tripathi: > Hi Team, > > I am getting following error while running l2fwd application > > [root@SERVER84 dpdk-21.08]# ./build/examples/dpdk-helloworld > EAL: Detected 40 lcore(s) > EAL: Detected 2 NUMA nodes > EAL: Detected static linkage of DPDK > EAL: Multi-process socket /var/run/dpdk/rte/mp_socket > EAL: Selected IOVA mode 'PA' > EAL: VFIO support initialized > TELEMETRY: No legacy callbacks, legacy socket not created > hello from core 0
Is it a complete log or you've just omitted 39 "hello from core ..." messages? In the latter case there is no error, it's a normal startup sequence. > > After reading through the mailing list I got to know that -d option is used > pass the drivers path. Even after that I am getting the following error > message: > > [root@SERVER84 dpdk-21.08]# ./build/examples/dpdk-helloworld -d > /home/Animesh/DPDK/dpdk-21.08/build/drivers/ > EAL: Detected 40 lcore(s) > EAL: Detected 2 NUMA nodes > EAL: Detected static linkage of DPDK > EAL: RTE_RING tailq is already registered > PANIC in tailqinitfn_rte_ring_tailq(): > Cannot initialize tailq: RTE_RING > 16: [./build/examples/dpdk-helloworld() [0xa007cb]] > 15: [/lib64/libc.so.6(__libc_start_main+0xf5) [0x7ffff4750505]] > 14: [./build/examples/dpdk-helloworld(main+0x6) [0x53c306]] > 13: [./build/examples/dpdk-helloworld(rte_eal_init+0x73e) [0xbb563e]] > 12: [./build/examples/dpdk-helloworld(eal_plugins_init+0x288) [0xba1c18]] > 11: [/lib64/libdl.so.2(dlopen+0x31) [0x7ffff78d5f81]] > 10: [/lib64/libdl.so.2(+0x14ed) [0x7ffff78d64ed]] > 9: [/lib64/ld-linux-x86-64.so.2(+0xf784) [0x7ffff7dea784]] > 8: [/lib64/libdl.so.2(+0xeeb) [0x7ffff78d5eeb]] > 7: [/lib64/ld-linux-x86-64.so.2(+0x13b3b) [0x7ffff7deeb3b]] > 6: [/lib64/ld-linux-x86-64.so.2(+0xf784) [0x7ffff7dea784]] > 5: [/lib64/ld-linux-x86-64.so.2(+0x1454e) [0x7ffff7def54e]] > 4: [/lib64/ld-linux-x86-64.so.2(+0xf973) [0x7ffff7dea973]] > 3: > [/home/Animesh/DPDK/dpdk-21.08/build/drivers/../lib/librte_ring.so.21(+0xe1c) > [0x7ffff2d5de1c]] > 2: [./build/examples/dpdk-helloworld(__rte_panic+0xba) [0x51b664]] > 1: [./build/examples/dpdk-helloworld(rte_dump_stack+0x1a) [0xbb717a]] > Aborted (core dumped) > > I will be waiting for your response. Please help me to resolve this issue. The program has DPDK linked statically, so all the libraries and drivers are inside the binary. With -d you're trying to load the same code again as shared libraries, it fails to perform the initialization again.
