gdb no symbol table loaded for core file

Question

There was a core dump produced at the customer end for my application and while looking at the backtrace I don't have the symbols loaded...

(gdb) where
#0  0x000000364c032885 in ?? ()
#1  0x000000364c034065 in ?? ()
#2  0x0000000000000000 in ?? ()
(gdb) bt full
#0  0x000000364c032885 in ?? ()
No symbol table info available.
#1  0x000000364c034065 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.

One think I want to mention in here is that the application being used is build with -g option.

To me it seems that the required libraries are not being loaded. I tried to load the libraries manually using the "symbol-file", but this doesn't help.

What could be the possible issue?

Answer 1

No symbol table info available.

Chances are you invoked GDB incorrectly. Don't do this:

gdb core
gdb -c core

Do this instead:

gdb exename core

Also see this answer for what you'll likely have to do to get meaningful crash stack trace for a core from customer's machine.