GNU gdb 6.8-debian Copyright (C) 2008 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 "x86_64-linux-gnu"... (gdb) handle SIG33 pass nostop nopringt Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) set pagination 0 (gdb) reun Starting program: /usr/bin/gnome-display-properties [Thread debugging using libthread_db enabled] [New Thread 0x7f673146d770 (LWP 8739)] Program exited normally. (gdb) backtrace full No stack. (gdb) indfo registers The program has no registers now. (gdb) theread apply all backtrace No registers. (gdb) quit