Core file is truncated , please share new core file: gdb contrail-vrouter-agent.debug core.contrail-vroute.961.nodec31.1530921939 GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-110.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 /root/contrail-vrouter-agent.debug...done. BFD: Warning: /root/core.contrail-vroute.961.nodec31.1530921939 is truncated: expected core file size >= 1045245952, found: 115347456. warning: core file may not match specified executable file. [New LWP 961] [New LWP 970] [New LWP 971] [New LWP 972] [New LWP 974] [New LWP 975] [New LWP 976] [New LWP 968] [New LWP 969] Cannot access memory at address 0x7f982737b128 Cannot access memory at address 0x7f982737b120 Failed to read a valid object file image from memory. Core was generated by `/usr/bin/contrail-vrouter-agent'. Program terminated with signal 6, Aborted. #0 0x00007f98239c5277 in ?? () (gdb) bt Python Exception Cannot access memory at address 0x7fff4db97268: (gdb) q [root@nodeg23 ~]# [root@nodeg23 ~]# gdb c31_agent core.contrail-vroute.961.nodec31.1530921939 GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-110.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 /root/c31_agent...done. BFD: Warning: /root/core.contrail-vroute.961.nodec31.1530921939 is truncated: expected core file size >= 1045245952, found: 115347456. warning: core file may not match specified executable file. [New LWP 961] [New LWP 970] [New LWP 971] [New LWP 972] [New LWP 974] [New LWP 975] [New LWP 976] [New LWP 968] [New LWP 969] Failed to read a valid object file image from memory. Core was generated by `/usr/bin/contrail-vrouter-agent'. Program terminated with signal 6, Aborted. #0 0x00007f98239c5277 in ?? () (gdb) bt Python Exception Cannot access memory at address 0x7fff4db97268: [root@nodeg23 ~]# strings core.contrail-vroute.961.nodec31.1530921939|grep build-info {"build-info":[{"build-time":"2018-06-20 18:03:25.640239","build-hostname":"centos-7-4-builder-juniper-contrail-ci-c-0000057528.novalocal","build-user":"zuul","build-version":"5.1.0","build-id":"5.1.0-153.el7","build-number":"@contrail"}]} {"build-info": [{"build-time": "2018-06-20 18:03:25.640239", "build-hostname": "centos-7-4-builder-juniper-contrail-ci-c-0000057528.novalocal", "build-user": "zuul", "build-version": "5.1.0"}]} {"build-info": [{"build-time": "2018-06-20 18:08:34.148945", "build-hostname": "centos-7-4-builder-juniper-contrail-ci-c-0000057528.novalocal", "build-user": "zuul", "build-version": "5.1.0"}]} {"build-info":[{"build-time":"2018-06-20 18:03:25.640239","build-hostname":"centos-7-4-builder-juniper-contrail-ci-c-0000057528.novalocal","build-user":"zuul","build-version":"5.1.0","build-id":"5.1.0-153.el7","build-number":"@contrail"}]} [root@nodeg23 ~]# md5sum core.contrail-vroute.961.nodec31.1530921939 fc0668ed1aab3d64ab3b5b87280b6585 core.contrail-vroute.961.nodec31.1530921939 [root@nodeg23 ~]# strings contrail-vrouter-agent |grep build-info build-info {"build-info": [{"build-time": "2018-06-20 18:03:25.640239", "build-hostname": "centos-7-4-builder-juniper-contrail-ci-c-0000057528.novalocal", "build-user": "zuul", "build-version": "5.1.0"}]}