If an engineer attempts to debug a variant failure on a spawnhost, AND the variant was a *san configuration, gdb will NOT work on the spawnhost.

On sanitizer variants we build with separate-debug=off which includes the debugsymbols inside of the binaries. The setup_spawnhosts scripts does some stuff which modifies the binary which makes the binary not work with gdb. If you download the binary from evergreen it does work.

Max h hypothesized that adding the .gdb_index section into the executable itself (separate-debug=off) causes gdb to not recognize the executable as having produced the core dump and therefore refuses to load the debug symbols from the executable

Original slack thread: https://mongodb.slack.com/archives/CR8SNBY0N/p1692653657122299