It is defined in 2.4.20, undefined but reserved:
werewolf:/usr/src/linux-2.4.20> grep -r exit_group *
arch/x86_64/ia32/ia32entry.S: .quad sys_ni_syscall /* exit_group */
arch/i386/kernel/entry.S: .long SYMBOL_NAME(sys_ni_syscall) /* sys_exit_group */
include/asm-x86_64/ia32_unistd.h:#define __NR_ia32_exit_group 252
include/asm-i386/unistd.h:#define __NR_exit_group 252
???
-- J.A. Magallon <jamagallon@able.es> \ Software is like sex: werewolf.able.es \ It's better when it's free Mandrake Linux release 9.1 (Cooker) for i586 Linux 2.4.21-pre2-jam2 (gcc 3.2.1 (Mandrake Linux 9.1 3.2.1-2mdk)) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/