Understanding the internals of core dump generation

[Indraneel Mukherjee <indro.ml@xxxxxxxxx>]

Hi All,
I am looking to understand how core dumps are generated. I'm able to generate application core dumps. Now i want to understand the internals of core dump generation.

1. What happens internally when a segfault occurs?

2. Who actually stores the core dump?

3. How is the core dump file created?

Any pointers to understand these or the related code will be much appreciated.

TIA,
Indro