[root@localhost bin]# gdb GsClient core.334533 GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-100.el7 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: ... Reading symbols from /ipkeyfiles/bin/GsClient...done. [New LWP 334533] [New LWP 334540] [New LWP 334541] [New LWP 334542] [New LWP 334543] [New LWP 334544] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `/ipkeyfiles/bin/GsClient'. Program terminated with signal 11, Segmentation fault. #0 0x0000000000000000 in ?? () Missing separate debuginfos, use: debuginfo-install ipkey-client-3.9.0-0.el7.x86_64 (gdb) where #0 0x0000000000000000 in ?? () #1 0x00007ffff619a273 in rte_mempool_ops_dequeue_bulk (mp=0x7ffabfd47080, obj_table=0x7fffffffc248, n=1) at /root/dpdk/x86_64-native-linuxapp-gcc/include/rte_mempool.h:492 #2 0x00007ffff619a487 in __mempool_generic_get (cache=0x0, n=1, obj_table=0x7fffffffc248, mp=0x7ffabfd47080) at /root/dpdk/x86_64-native-linuxapp-gcc/include/rte_mempool.h:1271 #3 rte_mempool_generic_get (cache=0x0, n=1, obj_table=0x7fffffffc248, mp=0x7ffabfd47080) at /root/dpdk/x86_64-native-linuxapp-gcc/include/rte_mempool.h:1306 #4 rte_mempool_get_bulk (n=1, obj_table=0x7fffffffc248, mp=0x7ffabfd47080) at /root/dpdk/x86_64-native-linuxapp-gcc/include/rte_mempool.h:1339 #5 rte_mempool_get (obj_p=0x7fffffffc248, mp=0x7ffabfd47080) at /root/dpdk/x86_64-native-linuxapp-gcc/include/rte_mempool.h:1365 #6 rte_mbuf_raw_alloc (mp=0x7ffabfd47080) at /root/dpdk/x86_64-native-linuxapp-gcc/include/rte_mbuf.h:879 #7 0x00007ffff619a584 in rte_pktmbuf_alloc (mp=0x7ffabfd47080) at /root/dpdk/x86_64-native-linuxapp-gcc/include/rte_mbuf.h:1222 #8 0x00007ffff619a7be in if_cea_send_gen_info (fd=-1, ring_name=0x7fffffffc490 "RB_CEA_CFG_WRITE_0", p_msg=0x7fffffffc510, len_msg=8) at ifcea_filter.c:186 #9 0x00007ffff619755e in if_cea_manager_phisical_ch (info_th=0x120b3d0, p_cfg_ch=0x7fffffffc700) at ifcea.c:2450 #10 0x00007ffff61994b0 in if_cea_open_logical_channel (p_cfg_ch=0x7fffffffc700) at ifcea.c:3493 #11 0x00000000004295b3 in cl_gs_assegna_thread_multicore () at cl_gs_iniz_seckey.c:9125 #12 0x000000000042b073 in cl_gs_iniz_sec () at cl_gs_iniz_seckey.c:10302 #13 0x00000000004174ea in main () at cl_gs_gestore_servizi.c:8169 (gdb) up #1 0x00007ffff619a273 in rte_mempool_ops_dequeue_bulk (mp=0x7ffabfd47080, obj_table=0x7fffffffc248, n=1) at /root/dpdk/x86_64-native-linuxapp-gcc/include/rte_mempool.h:492 492 return ops->dequeue(mp, obj_table, n); (gdb) print mp $1 = (struct rte_mempool *) 0x7ffabfd47080 (gdb) print *mp Cannot access memory at address 0x7ffabfd47080 (gdb)