alwaysdump
alwaysdump is a bit-map value that defines which classes of
kernel memory pages are to be dumped if a kernel panic occurs.
0
0
Specify integer value. For more information, see Specifying Parameter Values.
On large systems, the time required to dump system memory when a kernel
panic occurs can be excessive or even prohibitive, depending on how much
physical memory is installed in the system. Fast-dump capabilities
controlled by the dontdump and alwaysdump
parameters provides a means for restricting kernel dumps to specific
types of information:
The bit-map value stored in alwaysdump specifies which of
these memory classes are to be included in the memory dumps associated
with a kernel panic.
alwaysdump and dontdump have opposite effects.
If the bit corresponding to a particular memory-page class is set in one
parameter, it should not be set in the other parameter; otherwise a
coflict occurs and the actual kernel behavior based on parameter values
is undefined. These conflicts do not occur when SAM is used to set the
values ([Modify Page-Class Configuration] in the [Actions]
menu, SAM "Dump Devices" subarea in the kernel-configration area).