GNU gdb 6.7.1-debian Copyright (C) 2007 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu"... (no debugging symbols found) Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". (gdb) handle SIG33 pass nostop noprint Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) set pagination 0 (gdb) run sudo apt-get install mplayer Starting program: /usr/bin/sudo sudo apt-get install mplayer (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) sudo: must be setuid root Program exited with code 01. (gdb) backtrace full No stack. (gdb) info registers The program has no registers now. (gdb) thread apply all backtrace No registers. (gdb) quit