vmcore+bt

[Hashemian, Mehdi]

I apologize if this is a repeated question or not the right email list for my question:

I am trying to get back-trace information for a kernel module from a vmcore file and seeing different behaviors with gdb 7.1.34 and 7.3. I do add-symbol-file in both cases. With 7.3, I get an error message: "can't read symbols: File format not recognized." and with 7.0, I get only one line of bt information. Is there an outstanding bug for 7.3? What else I am missing to see the complete back-trace?

Regard,
Mehdi