cpu_dumpsize(9) [netbsd man page]

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

NAME

     cpu_dumpconf, cpu_dump, cpu_dumpsize, dumpsys -- machine-dependent kernel core dumps

SYNOPSIS

     #include <sys/types.h>
     #include <sys/systm.h>

     void
     cpu_dumpconf(void);

     int
     cpu_dump(int (*dump)(dev_t, daddr_t, void *, size_t), daddr_t *blknop);

     int
     cpu_dumpsize(void);

     void
     dumpsys(void);

DESCRIPTION

     cpu_dumpconf() is the machine-dependent interface invoked during system bootstrap to determine the dump device and initialize machine-depen-
     dent kernel core dump state.  Internally, cpu_dumpconf() will invoke cpu_dumpsize() to calculate the size of machine-dependent kernel core
     dump headers.

     dumpsys() is invoked by cpu_reboot() to dump kernel physical memory onto the dump device.	dumpsys() invokes cpu_dump() to write the machine-
     dependent header to the dump device at block number *blknop using the dump device's PIO dump routine specified by the dump argument.

     cpu_dumpsize(), cpu_dump(), and dumpsys() are parts of the machine-dependent interface, however they are not exported to machine-independent
     code.

SEE ALSO

     cpu_reboot(9)

BSD
								   May 24, 2002 							       BSD

dump(9E)							Driver Entry Points							  dump(9E)

NAME

       dump - dump memory to device during system failure

SYNOPSIS

       #include <sys/types.h>
       #include <sys/ddi.h>
       #include <sys/sunddi.h>

       intprefixdump(dev_t dev, caddr_t addr, daddr_t blkno, int nblk);

INTERFACE LEVEL

       Solaris specific (Solaris DDI). This entry point is required. For drivers that do not implement dump() routines, nodev(9F) should be used.

ARGUMENTS

       dev	Device number.

       addr	Address for the beginning of the area to be dumped.

       blkno	Block offset to dump memory.

       nblk	Number of blocks to dump.

DESCRIPTION

       dump()  is  used  to  dump  a  portion of virtual address space directly to a device in the case of system failure. It can also be used for
       checking the state of the kernel during a checkpoint operation.	The memory area to be dumped is specified by addr (base address) and  nblk
       (length). It is dumped to the device specified by dev starting at offset blkno. Upon completion dump() returns the status of the transfer.

       When  the  system  is panicking, the calls of functions scheduled by timeout(9F) and ddi_trigger_softintr(9F) will never occur. Neither can
       delay(9F) be relied upon, since it is implemented via timeout(). See ddi_in_panic(9F).

       dump() is called at interrupt priority.

RETURN VALUES

       dump() returns 0 on success, or the appropriate error number.

SEE ALSO

       cpr(7), nodev(9F)

       Writing Device Drivers

SunOS 5.10							    9 Oct 2001								  dump(9E)