The hs_err file already contains a section where it copy-pastes the contents of /proc/<pid>/maps. This is helpful but is still missing some information like which memory regions are backed up by physical memory. This and additional other information can be extracted from /proc/<pid>/smaps.

Investigate a way to include the additional, useful information from /proc/<pid>/smaps into the hs_err file. The Linux command line utility pmap [1] can be used as an example on how the data from /proc/<pid>/smaps can be presented in a compact and useful way.

[1] https://man7.org/linux/man-pages/man1/pmap.1.html