shirish@Mugglewille:~$ gdb sleep GNU gdb 6.6-debian Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i486-linux-gnu"... Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". (gdb) run 500 Starting program: /bin/sleep 500 Program received signal SIGINT, Interrupt. 0xffffe410 in __kernel_vsyscall () (gdb) quit The program is running. Exit anyway? (y or n) y shirish@Mugglewille:~$ gdb sleep GNU gdb 6.6-debian Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i486-linux-gnu"... Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". (gdb) run 300 Starting program: /bin/sleep 300 Program received signal SIGINT, Interrupt. 0xffffe410 in __kernel_vsyscall () (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0xb7e87e70 in nanosleep () from /lib/tls/i686/cmov/libc.so.6 #2 0x0804a1fa in xnanosleep (seconds=300) at xnanosleep.c:101 #3 0x08048ef4 in main (argc=2, argv=Cannot access memory at address 0x4 ) at sleep.c:148 #4 0xb7e0b050 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6 #5 0x08048b81 in _start () (gdb) quit The program is running. Exit anyway? (y or n) y shirish@Mugglewille:~$ uname -r 2.6.22-11-generic shirish@Mugglewille:~$ LC_ALL=en_US apt-cache policy linux-image-`uname -r` linux-image-2.6.22-11-generic: Installed: 2.6.22-11.32 Candidate: 2.6.22-11.32 Version table: *** 2.6.22-11.32 0 500 http://archive.ubuntu.com gutsy/main Packages 100 /var/lib/dpkg/status