Not sure if this helps i coped the coredump file to a test system install gdb and got the following # gdb /usr/sbin/dhcpd ./CoreDump GNU gdb (Ubuntu 9.1-0ubuntu1) 9.1 Copyright (C) 2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> 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-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>.
For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/sbin/dhcpd... (No debugging symbols found in /usr/sbin/dhcpd) [New LWP 63464] [New LWP 63463] [New LWP 63448] [New LWP 63465] warning: Unexpected size of section `.reg-xstate/63464' in core file. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf /etc/dh'. Program terminated with signal SIGABRT, Aborted. warning: Unexpected size of section `.reg-xstate/63464' in core file. #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50 50 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. [Current thread is 1 (Thread 0x7f0ed5c48700 (LWP 63464))] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872118 Title: DHCP Cluster crashes after a few hours To manage notifications about this bug go to: https://bugs.launchpad.net/dhcp/+bug/1872118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs