Selective core dump in Linux - How can I select the dumped sections?

Question

I am looking for a way to select the sections and memory regions included in a core dump.
My application\'s core dump size is about 30GB, most of it is in preallocated buffe

Answer 1

I'm not sure if it is possible to set which part of the memory to dump.

From man 5 core

disk file containing an image of the process's memory at the time of termination

As an option you can truncate core file using setrlimit with a RLIMIT_CORE parameter.