I tried gdb but it didn't get very far. Do I need a special kernel option enabled or something? See below.
[ ~/bin ]-: gdb nero
GNU gdb 6.0
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This GDB was configured as "x86_64-pc-linux-gnu"...
(no debugging symbols found)...Using host libthread_db library "/lib/libthread_db.so.1".
Starting program: /usr/bin/nero
Cannot insert breakpoint -2.
Error accessing memory address 0xbb50: Input/output error.
0 0x00000000 in ?? ()