Added recognition of the new DUMP_DH_COMPRESSED_INCOMPLETE flag in
the header of compressed kdumps, and the new DUMP_ELF_INCOMPLETE flag
in the header of ELF kdumps.  If the makedumpfile(8) facility fails
to complete the creation of compressed or ELF kdump vmcore files
due to ENOSPC or other error, it will mark the vmcore as incomplete.
If either flag is set, the crash utility will issue a warning that
the dumpfile is known to be incomplete during initialization, just
prior to the system banner display.  When reads are attempted on
missing data, a read error will be returned.  As an alternative,
zero-filled data will be returned if the "--zero_excluded" command
line flag is used, or the "zero_excluded" runtime variable is set
to "on".  In either case, the read errors or zero-filled memory
may cause the crash session to fail entirely, cause commands to
fail, or may result in other unpredictable runtime behavior.
(anderson@redhat.com, zhouwj-fnst@cn.fujitsu.com)