question gdbserver

[cerr]

Hi There,

I would like to use gdbserver to debug an application on the target
device. I did get it up and running and also got gdbserver attached to
my process. I did compile the binary with following flags:
-g3 -O0 -g -DNEW_PRG -DINIT_REPORT -D__DEBUG_
and hence I should have debugging symbols available but if i connect
with gdb to my target (target remote 192.168.101.22:2345) i only get
question marks like:
(gdb) bt
#0  0xb7f64740 in ?? ()

Why??? What am I doing wrong?
Thanks! Any help and suggestions are appreciated!