Is it possible to get a core dump of a running process and its symbol table?
Solution 1:
$ gdb --pid=26426 (gdb) gcore Saved corefile core.26426 (gdb) detach
Solution 2:
Or run gcore $(pidof processname).
This has the benefit (over running gdb and issuing commands to the CLI) that you attach and detach in the shortest possible time.
Solution 3:
You can used generate-core-file command in gdb to generate core dump of running process.