ultrix man page for stopcpu

stopcpu(2)							System Calls Manual							stopcpu(2)

Name
       stopcpu - stop a CPU

Syntax
       stopcpu(cpunumber)
       int cpunumber;

Description
       The system call stops the CPU specified by cpunumber.  Any nid-boot CPU can be stopped using this system call. Only a superuser can execute
       the system call.

Return Values
       The call returns 0 if the CPU was stopped successfully, or else it returns -1 and sets errno appropriately.

Diagnostics
       [EPERM]	      The caller is not a superuser

       [EACCES]       Trying to stop boot CPU

       [EBUSY]	      The CPU is already stopped or no such CPU present

       [EINVAL]       Invalid value for cpunumber.  A value cpunumber is between 0 and 31.

See Also
       startcpu (2), startcpu (8), stopcpu (8)

																	stopcpu(2)