=============================================================================
Crash/Panic
=============================================================================
CPU                     command 
-----------------------------------------------------------------------------
To panic/crash a running system
-----------------------------------------------------------------------------
    USE
                        # dbx -k /vmunix /dev/mem
                        (dbx) p bufhash
                        (dbx) assign bufhash=0x000

    OR                  #kvar -k -s rootdir -wl -v 0 /vmunix

    OR                  #dbx -k /vmunix /dev/mem
                        (dbx) a (int)&ln_softc=0

    THEN find you hardware type below to generate a crash file

System is hung:
	                    Press the halt button (not the reset)
	
	OR                  ^P (with Enable switch is on)
  
                        
--------------------------------------------------------------------
To get a dump/crash from a paniced system:
-----------------------------------------------------------------------------
microVAX2000/3500/3600/3800/3900
VAXstationII/II/GPX/2000/3200/3500
VAXserver 100/3500/3600/3602
  console               >>>

DECStation 2100/3100/5000
  console               >>>c
 OR
  console               >>>go 0x80030008
                        >>>init
                        >>>boot

Alphastation 3000
  console               >>>c

AlphaServer 1000
  console               >>>c

AlphaServer 2000
  console               >>>crash

AlphaServer 2100
  console               >>>crash

AlphaServer 4000
  console               >>>crash

AlphaServer 4100
  console               >>>crash

AlphaServer 8400
  console               >>>crash

AlphaServer 10000
  console               >>>crash

If your machine is not listed, then try "crash", if not there,
then try 'c'.  In Digital Unix 4.0, the standard by default
is "crash".

-----------------------------------------------------------------------------
Uncompressing a dump to look at it:
-----------------------------------------------------------------------------
The following uncompresses a dump not filling up the file with 0's (saves
much space).  The 0 should replaced with the current dump file number.

#cd /var/adm/crash
#uncompress -c vmcore.0.Z | dd of=vmcore.0 conv=sparse

-----------------------------------------------------------------------------
Setting you system to do a full dump - paritial is default:
-----------------------------------------------------------------------------
>>> set boot_osflags d

OR

The following is temporary, is reset at next reboot:

#dbx -k /vmunix
(dbx) p partial_dump    #if you get a 1, you have partial set, so
(dbx) a partial_dump = 0
(dbx) quit