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NetBSD 6.1.5 - man page for cpu_reboot (netbsd section 9)

CPU_REBOOT(9)			  BSD Kernel Developer's Manual 		    CPU_REBOOT(9)

NAME
     cpu_reboot -- halt or reboot the system

SYNOPSIS
     #include <sys/reboot.h>

     void
     cpu_reboot(int howto, char *bootstr);

DESCRIPTION
     The cpu_reboot() function handles final system shutdown, and either halts or reboots the
     system.  The exact action to be taken is determined by the flags passed in howto and by
     whether or not the system has finished autoconfiguration.

     If the system has finished autoconfiguration, cpu_reboot() does the following:

	   1.	Sets the boothowto system variable (see boothowto(9)) from the howto argument.

	   2.	If this is the first invocation of cpu_reboot() and the RB_NOSYNC flag is not set
		in howto, syncs and unmounts the system disks by calling vfs_shutdown(9) and sets
		the time of day clock by calling resettodr(9).

	   3.	Disables interrupts.

	   4.	If rebooting after a crash (i.e., if RB_DUMP is set in howto, but RB_HALT is
		not), saves a system crash dump.

	   5.	Runs any shutdown hooks by calling pmf_system_shutdown(9).

	   6.	Prints a message indicating that the system is about to be halted or rebooted.

	   7.	If RB_HALT is set in howto, halts the system.  Otherwise, reboots the system.

     If the system has not finished autoconfiguration, cpu_reboot() runs any shutdown hooks by
     calling pmf_system_shutdown(9), prints a message, and halts the system.

     If RB_STRING is set in howto, then the parameter bootstr is passed to the system boot loader
     on some ports.

SEE ALSO
     boothowto(9), dumpsys(9), pmf_system_shutdown(9), resettodr(9), vfs_shutdown(9)

BSD					February 11, 2010				      BSD


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